1 /*
2  * Copyright (C) 2006 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #define ATRACE_TAG ATRACE_TAG_DALVIK
18 #define LOG_TAG "AndroidRuntime"
19 #define LOG_NDEBUG 1
20 
21 #include <android_runtime/AndroidRuntime.h>
22 
23 #include <android-base/properties.h>
24 #include <binder/IBinder.h>
25 #include <binder/IPCThreadState.h>
26 #include <binder/IServiceManager.h>
27 #include <utils/Log.h>
28 #include <utils/misc.h>
29 #include <utils/Trace.h>
30 #include <binder/Parcel.h>
31 #include <utils/threads.h>
32 #include <cutils/properties.h>
33 
34 #include <SkGraphics.h>
35 
36 #include "jni.h"
37 #include <nativehelper/JNIHelp.h>
38 #include <nativehelper/JniInvocation.h>
39 #include "android_util_Binder.h"
40 
41 #include <stdio.h>
42 #include <signal.h>
43 #include <sys/stat.h>
44 #include <sys/types.h>
45 #include <signal.h>
46 #include <dirent.h>
47 #include <assert.h>
48 
49 #include <string>
50 #include <vector>
51 
52 using namespace android;
53 using android::base::GetProperty;
54 
55 extern int register_android_os_Binder(JNIEnv* env);
56 extern int register_android_os_Process(JNIEnv* env);
57 extern int register_android_graphics_Bitmap(JNIEnv*);
58 extern int register_android_graphics_BitmapFactory(JNIEnv*);
59 extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
60 extern int register_android_graphics_ByteBufferStreamAdaptor(JNIEnv* env);
61 extern int register_android_graphics_Camera(JNIEnv* env);
62 extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
63 extern int register_android_graphics_GraphicBuffer(JNIEnv* env);
64 extern int register_android_graphics_Graphics(JNIEnv* env);
65 extern int register_android_graphics_ImageDecoder(JNIEnv*);
66 extern int register_android_graphics_drawable_AnimatedImageDrawable(JNIEnv*);
67 extern int register_android_graphics_Interpolator(JNIEnv* env);
68 extern int register_android_graphics_MaskFilter(JNIEnv* env);
69 extern int register_android_graphics_Movie(JNIEnv* env);
70 extern int register_android_graphics_NinePatch(JNIEnv*);
71 extern int register_android_graphics_PathEffect(JNIEnv* env);
72 extern int register_android_graphics_Shader(JNIEnv* env);
73 extern int register_android_graphics_Typeface(JNIEnv* env);
74 extern int register_android_graphics_YuvImage(JNIEnv* env);
75 
76 extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
77 extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
78 extern int register_android_opengl_jni_EGL14(JNIEnv* env);
79 extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
80 extern int register_android_opengl_jni_GLES10(JNIEnv* env);
81 extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
82 extern int register_android_opengl_jni_GLES11(JNIEnv* env);
83 extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
84 extern int register_android_opengl_jni_GLES20(JNIEnv* env);
85 extern int register_android_opengl_jni_GLES30(JNIEnv* env);
86 extern int register_android_opengl_jni_GLES31(JNIEnv* env);
87 extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
88 extern int register_android_opengl_jni_GLES32(JNIEnv* env);
89 
90 extern int register_android_hardware_Camera(JNIEnv *env);
91 extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
92 extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env);
93 extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env);
94 extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
95 extern int register_android_hardware_HardwareBuffer(JNIEnv *env);
96 extern int register_android_hardware_SensorManager(JNIEnv *env);
97 extern int register_android_hardware_SerialPort(JNIEnv *env);
98 extern int register_android_hardware_SoundTrigger(JNIEnv *env);
99 extern int register_android_hardware_UsbDevice(JNIEnv *env);
100 extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
101 extern int register_android_hardware_UsbRequest(JNIEnv *env);
102 extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
103 
104 extern int register_android_media_AudioRecord(JNIEnv *env);
105 extern int register_android_media_AudioSystem(JNIEnv *env);
106 extern int register_android_media_AudioTrack(JNIEnv *env);
107 extern int register_android_media_MicrophoneInfo(JNIEnv *env);
108 extern int register_android_media_JetPlayer(JNIEnv *env);
109 extern int register_android_media_ToneGenerator(JNIEnv *env);
110 
111 namespace android {
112 
113 /*
114  * JNI-based registration functions.  Note these are properly contained in
115  * namespace android.
116  */
117 extern int register_android_app_admin_SecurityLog(JNIEnv* env);
118 extern int register_android_content_AssetManager(JNIEnv* env);
119 extern int register_android_util_EventLog(JNIEnv* env);
120 extern int register_android_util_StatsLog(JNIEnv* env);
121 extern int register_android_util_Log(JNIEnv* env);
122 extern int register_android_util_MemoryIntArray(JNIEnv* env);
123 extern int register_android_util_PathParser(JNIEnv* env);
124 extern int register_android_content_StringBlock(JNIEnv* env);
125 extern int register_android_content_XmlBlock(JNIEnv* env);
126 extern int register_android_content_res_ApkAssets(JNIEnv* env);
127 extern int register_android_graphics_Canvas(JNIEnv* env);
128 extern int register_android_graphics_CanvasProperty(JNIEnv* env);
129 extern int register_android_graphics_ColorFilter(JNIEnv* env);
130 extern int register_android_graphics_DrawFilter(JNIEnv* env);
131 extern int register_android_graphics_FontFamily(JNIEnv* env);
132 extern int register_android_graphics_Matrix(JNIEnv* env);
133 extern int register_android_graphics_Paint(JNIEnv* env);
134 extern int register_android_graphics_Path(JNIEnv* env);
135 extern int register_android_graphics_PathMeasure(JNIEnv* env);
136 extern int register_android_graphics_Picture(JNIEnv*);
137 extern int register_android_graphics_Region(JNIEnv* env);
138 extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
139 extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env);
140 extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
141 extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
142 extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
143 extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
144 extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
145 extern int register_android_view_DisplayListCanvas(JNIEnv* env);
146 extern int register_android_view_TextureLayer(JNIEnv* env);
147 extern int register_android_view_RenderNode(JNIEnv* env);
148 extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
149 extern int register_android_view_Surface(JNIEnv* env);
150 extern int register_android_view_SurfaceControl(JNIEnv* env);
151 extern int register_android_view_SurfaceSession(JNIEnv* env);
152 extern int register_android_view_TextureView(JNIEnv* env);
153 extern int register_android_view_ThreadedRenderer(JNIEnv* env);
154 extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
155 extern int register_android_database_CursorWindow(JNIEnv* env);
156 extern int register_android_database_SQLiteConnection(JNIEnv* env);
157 extern int register_android_database_SQLiteGlobal(JNIEnv* env);
158 extern int register_android_database_SQLiteDebug(JNIEnv* env);
159 extern int register_android_nio_utils(JNIEnv* env);
160 extern int register_android_os_Debug(JNIEnv* env);
161 extern int register_android_os_GraphicsEnvironment(JNIEnv* env);
162 extern int register_android_os_HidlSupport(JNIEnv* env);
163 extern int register_android_os_HwBinder(JNIEnv *env);
164 extern int register_android_os_HwBlob(JNIEnv *env);
165 extern int register_android_os_HwParcel(JNIEnv *env);
166 extern int register_android_os_HwRemoteBinder(JNIEnv *env);
167 extern int register_android_os_MessageQueue(JNIEnv* env);
168 extern int register_android_os_Parcel(JNIEnv* env);
169 extern int register_android_os_SELinux(JNIEnv* env);
170 extern int register_android_os_VintfObject(JNIEnv *env);
171 extern int register_android_os_VintfRuntimeInfo(JNIEnv *env);
172 extern int register_android_os_SystemProperties(JNIEnv *env);
173 extern int register_android_os_SystemClock(JNIEnv* env);
174 extern int register_android_os_Trace(JNIEnv* env);
175 extern int register_android_os_FileObserver(JNIEnv *env);
176 extern int register_android_os_UEventObserver(JNIEnv* env);
177 extern int register_android_os_MemoryFile(JNIEnv* env);
178 extern int register_android_os_SharedMemory(JNIEnv* env);
179 extern int register_android_net_LocalSocketImpl(JNIEnv* env);
180 extern int register_android_net_NetworkUtils(JNIEnv* env);
181 extern int register_android_text_AndroidCharacter(JNIEnv *env);
182 extern int register_android_text_Hyphenator(JNIEnv *env);
183 extern int register_android_text_MeasuredParagraph(JNIEnv* env);
184 extern int register_android_text_StaticLayout(JNIEnv *env);
185 extern int register_android_opengl_classes(JNIEnv *env);
186 extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
187 extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
188 extern int register_android_backup_BackupDataInput(JNIEnv *env);
189 extern int register_android_backup_BackupDataOutput(JNIEnv *env);
190 extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
191 extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
192 extern int register_android_app_backup_FullBackup(JNIEnv *env);
193 extern int register_android_app_Activity(JNIEnv *env);
194 extern int register_android_app_ActivityThread(JNIEnv *env);
195 extern int register_android_app_NativeActivity(JNIEnv *env);
196 extern int register_android_media_RemoteDisplay(JNIEnv *env);
197 extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
198 extern int register_android_view_InputChannel(JNIEnv* env);
199 extern int register_android_view_InputDevice(JNIEnv* env);
200 extern int register_android_view_InputEventReceiver(JNIEnv* env);
201 extern int register_android_view_InputEventSender(JNIEnv* env);
202 extern int register_android_view_InputQueue(JNIEnv* env);
203 extern int register_android_view_KeyCharacterMap(JNIEnv *env);
204 extern int register_android_view_KeyEvent(JNIEnv* env);
205 extern int register_android_view_MotionEvent(JNIEnv* env);
206 extern int register_android_view_PointerIcon(JNIEnv* env);
207 extern int register_android_view_VelocityTracker(JNIEnv* env);
208 extern int register_android_content_res_ObbScanner(JNIEnv* env);
209 extern int register_android_content_res_Configuration(JNIEnv* env);
210 extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
211 extern int register_android_security_Scrypt(JNIEnv *env);
212 extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
213 extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
214 extern int register_com_android_internal_os_ClassLoaderFactory(JNIEnv* env);
215 extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env);
216 extern int register_com_android_internal_os_Zygote(JNIEnv *env);
217 extern int register_com_android_internal_os_ZygoteInit(JNIEnv *env);
218 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
219 
220 static AndroidRuntime* gCurRuntime = NULL;
221 
222 /*
223  * Code written in the Java Programming Language calls here from main().
224  */
com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv * env,jobject clazz)225 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
226 {
227     gCurRuntime->onStarted();
228 }
229 
com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv * env,jobject clazz)230 static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
231 {
232     gCurRuntime->onZygoteInit();
233 }
234 
com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv * env,jobject clazz,jboolean exitWithoutCleanup)235 static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
236         jobject clazz, jboolean exitWithoutCleanup)
237 {
238     gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
239 }
240 
241 /*
242  * JNI registration.
243  */
244 
register_com_android_internal_os_RuntimeInit(JNIEnv * env)245 int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
246 {
247     const JNINativeMethod methods[] = {
248         { "nativeFinishInit", "()V",
249             (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
250         { "nativeSetExitWithoutCleanup", "(Z)V",
251             (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
252     };
253     return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
254         methods, NELEM(methods));
255 }
256 
register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv * env)257 int register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env)
258 {
259     const JNINativeMethod methods[] = {
260         { "nativeZygoteInit", "()V",
261             (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit },
262     };
263     return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit",
264         methods, NELEM(methods));
265 }
266 
267 // ----------------------------------------------------------------------
268 
269 /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
270 
AndroidRuntime(char * argBlockStart,const size_t argBlockLength)271 AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
272         mExitWithoutCleanup(false),
273         mArgBlockStart(argBlockStart),
274         mArgBlockLength(argBlockLength)
275 {
276     SkGraphics::Init();
277 
278     // Pre-allocate enough space to hold a fair number of options.
279     mOptions.setCapacity(20);
280 
281     assert(gCurRuntime == NULL);        // one per process
282     gCurRuntime = this;
283 }
284 
~AndroidRuntime()285 AndroidRuntime::~AndroidRuntime()
286 {
287 }
288 
289 /*
290  * Register native methods using JNI.
291  */
registerNativeMethods(JNIEnv * env,const char * className,const JNINativeMethod * gMethods,int numMethods)292 /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
293     const char* className, const JNINativeMethod* gMethods, int numMethods)
294 {
295     return jniRegisterNativeMethods(env, className, gMethods, numMethods);
296 }
297 
setArgv0(const char * argv0,bool setProcName)298 void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
299     if (setProcName) {
300         int len = strlen(argv0);
301         if (len < 15) {
302             pthread_setname_np(pthread_self(), argv0);
303         } else {
304             pthread_setname_np(pthread_self(), argv0 + len - 15);
305         }
306     }
307     memset(mArgBlockStart, 0, mArgBlockLength);
308     strlcpy(mArgBlockStart, argv0, mArgBlockLength);
309 }
310 
callMain(const String8 & className,jclass clazz,const Vector<String8> & args)311 status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
312     const Vector<String8>& args)
313 {
314     JNIEnv* env;
315     jmethodID methodId;
316 
317     ALOGD("Calling main entry %s", className.string());
318 
319     env = getJNIEnv();
320     if (clazz == NULL || env == NULL) {
321         return UNKNOWN_ERROR;
322     }
323 
324     methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
325     if (methodId == NULL) {
326         ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
327         return UNKNOWN_ERROR;
328     }
329 
330     /*
331      * We want to call main() with a String array with our arguments in it.
332      * Create an array and populate it.
333      */
334     jclass stringClass;
335     jobjectArray strArray;
336 
337     const size_t numArgs = args.size();
338     stringClass = env->FindClass("java/lang/String");
339     strArray = env->NewObjectArray(numArgs, stringClass, NULL);
340 
341     for (size_t i = 0; i < numArgs; i++) {
342         jstring argStr = env->NewStringUTF(args[i].string());
343         env->SetObjectArrayElement(strArray, i, argStr);
344     }
345 
346     env->CallStaticVoidMethod(clazz, methodId, strArray);
347     return NO_ERROR;
348 }
349 
350 /*
351  * The VM calls this through the "exit" hook.
352  */
runtime_exit(int code)353 static void runtime_exit(int code)
354 {
355     gCurRuntime->exit(code);
356 }
357 
358 /*
359  * The VM calls this through the "vfprintf" hook.
360  *
361  * We ignore "fp" and just write the results to the log file.
362  */
runtime_vfprintf(FILE * fp,const char * format,va_list ap)363 static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
364 {
365     LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
366 }
367 
368 /**
369  * The VM calls this when mutex contention debugging is enabled to
370  * determine whether or not the blocked thread was a "sensitive thread"
371  * for user responsiveness/smoothess.
372  *
373  * Our policy for this is whether or not we're tracing any StrictMode
374  * events on this thread (which we might've inherited via Binder calls
375  * into us)
376  */
runtime_isSensitiveThread()377 static bool runtime_isSensitiveThread() {
378     IPCThreadState* state = IPCThreadState::selfOrNull();
379     return state && state->getStrictModePolicy() != 0;
380 }
381 
hasDir(const char * dir)382 static int hasDir(const char* dir)
383 {
384     struct stat s;
385     int res = stat(dir, &s);
386     if (res == 0) {
387         return S_ISDIR(s.st_mode);
388     }
389     return 0;
390 }
391 
hasFile(const char * file)392 static bool hasFile(const char* file) {
393     struct stat s;
394     int res = stat(file, &s);
395     if (res == 0) {
396         return S_ISREG(s.st_mode);
397     }
398     return false;
399 }
400 
401 /*
402  * Read the persistent locale. Inspects the following system properties
403  * (in order) and returns the first non-empty property in the list :
404  *
405  * (1) persist.sys.locale
406  * (2) persist.sys.language/country/localevar (country and localevar are
407  * inspected iff. language is non-empty.
408  * (3) ro.product.locale
409  * (4) ro.product.locale.language/region
410  *
411  * Note that we need to inspect persist.sys.language/country/localevar to
412  * preserve language settings for devices that are upgrading from Lollipop
413  * to M. The same goes for ro.product.locale.language/region as well.
414  */
readLocale()415 const std::string readLocale()
416 {
417     const std::string locale = GetProperty("persist.sys.locale", "");
418     if (!locale.empty()) {
419         return locale;
420     }
421 
422     const std::string language = GetProperty("persist.sys.language", "");
423     if (!language.empty()) {
424         const std::string country = GetProperty("persist.sys.country", "");
425         const std::string variant = GetProperty("persist.sys.localevar", "");
426 
427         std::string out = language;
428         if (!country.empty()) {
429             out = out + "-" + country;
430         }
431 
432         if (!variant.empty()) {
433             out = out + "-" + variant;
434         }
435 
436         return out;
437     }
438 
439     const std::string productLocale = GetProperty("ro.product.locale", "");
440     if (!productLocale.empty()) {
441         return productLocale;
442     }
443 
444     // If persist.sys.locale and ro.product.locale are missing,
445     // construct a locale value from the individual locale components.
446     const std::string productLanguage = GetProperty("ro.product.locale.language", "en");
447     const std::string productRegion = GetProperty("ro.product.locale.region", "US");
448 
449     return productLanguage + "-" + productRegion;
450 }
451 
addOption(const char * optionString,void * extraInfo)452 void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
453 {
454     JavaVMOption opt;
455     opt.optionString = optionString;
456     opt.extraInfo = extraInfo;
457     mOptions.add(opt);
458 }
459 
460 /*
461  * Parse a property containing space-separated options that should be
462  * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
463  *
464  * This will cut up "extraOptsBuf" as we chop it into individual options.
465  *
466  * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
467  *
468  * Adds the strings, if any, to mOptions.
469  */
parseExtraOpts(char * extraOptsBuf,const char * quotingArg)470 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
471 {
472     char* start = extraOptsBuf;
473     char* end = NULL;
474     while (*start != '\0') {
475         while (*start == ' ')                   /* skip leading whitespace */
476             start++;
477         if (*start == '\0')                     /* was trailing ws, bail */
478             break;
479 
480         end = start+1;
481         while (*end != ' ' && *end != '\0')     /* find end of token */
482             end++;
483         if (*end == ' ')
484             *end++ = '\0';          /* mark end, advance to indicate more */
485 
486         if (quotingArg != NULL) {
487             addOption(quotingArg);
488         }
489         addOption(start);
490         start = end;
491     }
492 }
493 
494 /*
495  * Reads a "property" into "buffer" with a default of "defaultArg". If
496  * the property is non-empty, it is treated as a runtime option such
497  * as "-Xmx32m".
498  *
499  * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
500  *
501  * If an argument is found, it is added to mOptions.
502  *
503  * If an option is found, it is added to mOptions and true is
504  * returned. Otherwise false is returned.
505  */
parseRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * defaultArg)506 bool AndroidRuntime::parseRuntimeOption(const char* property,
507                                         char* buffer,
508                                         const char* runtimeArg,
509                                         const char* defaultArg)
510 {
511     strcpy(buffer, runtimeArg);
512     size_t runtimeArgLen = strlen(runtimeArg);
513     property_get(property, buffer+runtimeArgLen, defaultArg);
514     if (buffer[runtimeArgLen] == '\0') {
515         return false;
516     }
517     addOption(buffer);
518     return true;
519 }
520 
521 /*
522  * Reads a "property" into "buffer". If the property is non-empty, it
523  * is treated as a dex2oat compiler option that should be
524  * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified".
525  *
526  * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
527  *
528  * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
529  *
530  * If an option is found, it is added to mOptions and true is
531  * returned. Otherwise false is returned.
532  */
parseCompilerOption(const char * property,char * buffer,const char * compilerArg,const char * quotingArg)533 bool AndroidRuntime::parseCompilerOption(const char* property,
534                                          char* buffer,
535                                          const char* compilerArg,
536                                          const char* quotingArg)
537 {
538     strcpy(buffer, compilerArg);
539     size_t compilerArgLen = strlen(compilerArg);
540     property_get(property, buffer+compilerArgLen, "");
541     if (buffer[compilerArgLen] == '\0') {
542         return false;
543     }
544     addOption(quotingArg);
545     addOption(buffer);
546     return true;
547 }
548 
549 /*
550  * Reads a "property" into "buffer". If the property is non-empty, it
551  * is treated as a dex2oat compiler runtime option that should be
552  * passed as a quoted option, e.g. "-Ximage-compiler-option
553  * --runtime-arg -Ximage-compiler-option -Xmx32m".
554  *
555  * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
556  *
557  * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
558  *
559  * If an option is found, it is added to mOptions and true is
560  * returned. Otherwise false is returned.
561  */
parseCompilerRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * quotingArg)562 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
563                                                 char* buffer,
564                                                 const char* runtimeArg,
565                                                 const char* quotingArg)
566 {
567     strcpy(buffer, runtimeArg);
568     size_t runtimeArgLen = strlen(runtimeArg);
569     property_get(property, buffer+runtimeArgLen, "");
570     if (buffer[runtimeArgLen] == '\0') {
571         return false;
572     }
573     addOption(quotingArg);
574     addOption("--runtime-arg");
575     addOption(quotingArg);
576     addOption(buffer);
577     return true;
578 }
579 
580 /*
581  * Start the Dalvik Virtual Machine.
582  *
583  * Various arguments, most determined by system properties, are passed in.
584  * The "mOptions" vector is updated.
585  *
586  * CAUTION: when adding options in here, be careful not to put the
587  * char buffer inside a nested scope.  Adding the buffer to the
588  * options using mOptions.add() does not copy the buffer, so if the
589  * buffer goes out of scope the option may be overwritten.  It's best
590  * to put the buffer at the top of the function so that it is more
591  * unlikely that someone will surround it in a scope at a later time
592  * and thus introduce a bug.
593  *
594  * Returns 0 on success.
595  */
startVm(JavaVM ** pJavaVM,JNIEnv ** pEnv,bool zygote)596 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
597 {
598     JavaVMInitArgs initArgs;
599     char propBuf[PROPERTY_VALUE_MAX];
600     char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
601     char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
602     char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
603     char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
604     char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
605     char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
606     char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
607     char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
608     char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
609     char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
610     char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
611     char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
612     char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
613     char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
614     char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX];
615     char madviseRandomOptsBuf[sizeof("-XX:MadviseRandomAccess:")-1 + PROPERTY_VALUE_MAX];
616     char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
617     char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
618     char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
619     char foregroundHeapGrowthMultiplierOptsBuf[
620             sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX];
621     char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
622     char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
623     char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
624     char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
625     char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
626     char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
627     char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
628     char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
629     char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
630     char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
631     char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
632     char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
633     char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
634     char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
635     char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
636     char extraOptsBuf[PROPERTY_VALUE_MAX];
637     char voldDecryptBuf[PROPERTY_VALUE_MAX];
638     enum {
639       kEMDefault,
640       kEMIntPortable,
641       kEMIntFast,
642       kEMJitCompiler,
643     } executionMode = kEMDefault;
644     char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
645     char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
646     char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
647     char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
648     char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
649     char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
650     std::string fingerprintBuf;
651     char jdwpProviderBuf[sizeof("-XjdwpProvider:") - 1 + PROPERTY_VALUE_MAX];
652 
653     bool checkJni = false;
654     property_get("dalvik.vm.checkjni", propBuf, "");
655     if (strcmp(propBuf, "true") == 0) {
656         checkJni = true;
657     } else if (strcmp(propBuf, "false") != 0) {
658         /* property is neither true nor false; fall back on kernel parameter */
659         property_get("ro.kernel.android.checkjni", propBuf, "");
660         if (propBuf[0] == '1') {
661             checkJni = true;
662         }
663     }
664     ALOGV("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
665     if (checkJni) {
666         /* extended JNI checking */
667         addOption("-Xcheck:jni");
668 
669         /* with -Xcheck:jni, this provides a JNI function call trace */
670         //addOption("-verbose:jni");
671     }
672 
673     property_get("dalvik.vm.execution-mode", propBuf, "");
674     if (strcmp(propBuf, "int:portable") == 0) {
675         executionMode = kEMIntPortable;
676     } else if (strcmp(propBuf, "int:fast") == 0) {
677         executionMode = kEMIntFast;
678     } else if (strcmp(propBuf, "int:jit") == 0) {
679         executionMode = kEMJitCompiler;
680     }
681 
682     // If dalvik.vm.stack-trace-dir is set, it enables the "new" stack trace
683     // dump scheme and a new file is created for each stack dump. If it isn't set,
684     // the old scheme is enabled.
685     property_get("dalvik.vm.stack-trace-dir", propBuf, "");
686     if (strlen(propBuf) > 0) {
687         addOption("-Xusetombstonedtraces");
688     } else {
689         parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
690     }
691 
692     strcpy(jniOptsBuf, "-Xjniopts:");
693     if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
694         ALOGI("JNI options: '%s'\n", jniOptsBuf);
695     }
696 
697     /* route exit() to our handler */
698     addOption("exit", (void*) runtime_exit);
699 
700     /* route fprintf() to our handler */
701     addOption("vfprintf", (void*) runtime_vfprintf);
702 
703     /* register the framework-specific "is sensitive thread" hook */
704     addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
705 
706     /* enable verbose; standard options are { jni, gc, class } */
707     //addOption("-verbose:jni");
708     addOption("-verbose:gc");
709     //addOption("-verbose:class");
710 
711     /*
712      * The default starting and maximum size of the heap.  Larger
713      * values should be specified in a product property override.
714      */
715     parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
716     parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
717 
718     parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
719     parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
720     parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
721     parseRuntimeOption("dalvik.vm.heaptargetutilization",
722                        heaptargetutilizationOptsBuf,
723                        "-XX:HeapTargetUtilization=");
724 
725     /* Foreground heap growth multiplier option */
726     parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier",
727                        foregroundHeapGrowthMultiplierOptsBuf,
728                        "-XX:ForegroundHeapGrowthMultiplier=");
729 
730     /*
731      * JIT related options.
732      */
733     parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
734     parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
735     parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
736     parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
737     property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
738     if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
739         addOption("-Xjitsaveprofilinginfo");
740     }
741 
742     parseRuntimeOption("dalvik.vm.jitprithreadweight",
743                        jitprithreadweightOptBuf,
744                        "-Xjitprithreadweight:");
745 
746     parseRuntimeOption("dalvik.vm.jittransitionweight",
747                        jittransitionweightOptBuf,
748                        "-Xjittransitionweight:");
749 
750     property_get("dalvik.vm.profilebootimage", propBuf, "");
751     if (strcmp(propBuf, "true") == 0) {
752         addOption("-Xps-profile-boot-class-path");
753         addOption("-Xps-profile-aot-code");
754     }
755 
756     /*
757      * Madvise related options.
758      */
759     parseRuntimeOption("dalvik.vm.madvise-random", madviseRandomOptsBuf, "-XX:MadviseRandomAccess:");
760 
761     /*
762      * Profile related options.
763      */
764     parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf,
765             "-Xps-hot-startup-method-samples:");
766 
767     property_get("ro.config.low_ram", propBuf, "");
768     if (strcmp(propBuf, "true") == 0) {
769       addOption("-XX:LowMemoryMode");
770     }
771 
772     parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
773     parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
774 
775     /*
776      * Enable debugging only for apps forked from zygote.
777      */
778     if (zygote) {
779       // Set the JDWP provider and required arguments. By default let the runtime choose how JDWP is
780       // implemented. When this is not set the runtime defaults to not allowing JDWP.
781       addOption("-XjdwpOptions:suspend=n,server=y");
782       parseRuntimeOption("dalvik.vm.jdwp-provider",
783                          jdwpProviderBuf,
784                          "-XjdwpProvider:",
785                          "default");
786     }
787 
788     parseRuntimeOption("dalvik.vm.lockprof.threshold",
789                        lockProfThresholdBuf,
790                        "-Xlockprofthreshold:");
791 
792     if (executionMode == kEMIntPortable) {
793         addOption("-Xint:portable");
794     } else if (executionMode == kEMIntFast) {
795         addOption("-Xint:fast");
796     } else if (executionMode == kEMJitCompiler) {
797         addOption("-Xint:jit");
798     }
799 
800     // If we are booting without the real /data, don't spend time compiling.
801     property_get("vold.decrypt", voldDecryptBuf, "");
802     bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
803                              (strcmp(voldDecryptBuf, "1") == 0));
804 
805     // Extra options for boot.art/boot.oat image generation.
806     parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
807                                "-Xms", "-Ximage-compiler-option");
808     parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
809                                "-Xmx", "-Ximage-compiler-option");
810     if (skip_compilation) {
811         addOption("-Ximage-compiler-option");
812         addOption("--compiler-filter=assume-verified");
813     } else {
814         parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
815                             "--compiler-filter=", "-Ximage-compiler-option");
816     }
817 
818     // If there is a boot profile, it takes precedence over the image and preloaded classes.
819     if (hasFile("/system/etc/boot-image.prof")) {
820         addOption("-Ximage-compiler-option");
821         addOption("--profile-file=/system/etc/boot-image.prof");
822         addOption("-Ximage-compiler-option");
823         addOption("--compiler-filter=speed-profile");
824     } else {
825         // Make sure there is a preloaded-classes file.
826         if (!hasFile("/system/etc/preloaded-classes")) {
827             ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
828                   strerror(errno));
829             return -1;
830         }
831         addOption("-Ximage-compiler-option");
832         addOption("--image-classes=/system/etc/preloaded-classes");
833 
834         // If there is a compiled-classes file, push it.
835         if (hasFile("/system/etc/compiled-classes")) {
836             addOption("-Ximage-compiler-option");
837             addOption("--compiled-classes=/system/etc/compiled-classes");
838         }
839 
840         // If there is a dirty-image-objects file, push it.
841         if (hasFile("/system/etc/dirty-image-objects")) {
842             addOption("-Ximage-compiler-option");
843             addOption("--dirty-image-objects=/system/etc/dirty-image-objects");
844         }
845     }
846 
847     property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
848     parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
849 
850     // Extra options for DexClassLoader.
851     parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
852                                "-Xms", "-Xcompiler-option");
853     parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
854                                "-Xmx", "-Xcompiler-option");
855     if (skip_compilation) {
856         addOption("-Xcompiler-option");
857         addOption("--compiler-filter=assume-verified");
858 
859         // We skip compilation when a minimal runtime is brought up for decryption. In that case
860         // /data is temporarily backed by a tmpfs, which is usually small.
861         // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
862         // specific situation it is acceptable to *not* relocate and run out of the prebuilts
863         // directly instead.
864         addOption("--runtime-arg");
865         addOption("-Xnorelocate");
866     } else {
867         parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
868                             "--compiler-filter=", "-Xcompiler-option");
869     }
870     parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
871     parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
872                         "-Ximage-compiler-option");
873 
874     // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
875     // pass the instruction-set-features/variant as an image-compiler-option.
876     // TODO: Find a better way for the instruction-set.
877 #if defined(__arm__)
878     constexpr const char* instruction_set = "arm";
879 #elif defined(__aarch64__)
880     constexpr const char* instruction_set = "arm64";
881 #elif defined(__mips__) && !defined(__LP64__)
882     constexpr const char* instruction_set = "mips";
883 #elif defined(__mips__) && defined(__LP64__)
884     constexpr const char* instruction_set = "mips64";
885 #elif defined(__i386__)
886     constexpr const char* instruction_set = "x86";
887 #elif defined(__x86_64__)
888     constexpr const char* instruction_set = "x86_64";
889 #else
890     constexpr const char* instruction_set = "unknown";
891 #endif
892     // Note: it is OK to reuse the buffer, as the values are exactly the same between
893     //       * compiler-option, used for runtime compilation (DexClassLoader)
894     //       * image-compiler-option, used for boot-image compilation on device
895 
896     // Copy the variant.
897     sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
898     parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
899                         "--instruction-set-variant=", "-Ximage-compiler-option");
900     parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
901                         "--instruction-set-variant=", "-Xcompiler-option");
902     // Copy the features.
903     sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
904     parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
905                         "--instruction-set-features=", "-Ximage-compiler-option");
906     parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
907                         "--instruction-set-features=", "-Xcompiler-option");
908 
909 
910     property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
911     parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
912 
913     /* extra options; parse this late so it overrides others */
914     property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
915     parseExtraOpts(extraOptsBuf, NULL);
916 
917     /* Set the properties for locale */
918     {
919         strcpy(localeOption, "-Duser.locale=");
920         const std::string locale = readLocale();
921         strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
922         addOption(localeOption);
923     }
924 
925     // Trace files are stored in /data/misc/trace which is writable only in debug mode.
926     property_get("ro.debuggable", propBuf, "0");
927     if (strcmp(propBuf, "1") == 0) {
928         property_get("dalvik.vm.method-trace", propBuf, "false");
929         if (strcmp(propBuf, "true") == 0) {
930             addOption("-Xmethod-trace");
931             parseRuntimeOption("dalvik.vm.method-trace-file",
932                                methodTraceFileBuf,
933                                "-Xmethod-trace-file:");
934             parseRuntimeOption("dalvik.vm.method-trace-file-siz",
935                                methodTraceFileSizeBuf,
936                                "-Xmethod-trace-file-size:");
937             property_get("dalvik.vm.method-trace-stream", propBuf, "false");
938             if (strcmp(propBuf, "true") == 0) {
939                 addOption("-Xmethod-trace-stream");
940             }
941         }
942     }
943 
944     // Native bridge library. "0" means that native bridge is disabled.
945     property_get("ro.dalvik.vm.native.bridge", propBuf, "");
946     if (propBuf[0] == '\0') {
947         ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
948     } else if (strcmp(propBuf, "0") != 0) {
949         snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
950                  "-XX:NativeBridge=%s", propBuf);
951         addOption(nativeBridgeLibrary);
952     }
953 
954 #if defined(__LP64__)
955     const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
956 #else
957     const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
958 #endif  // defined(__LP64__)
959     property_get(cpu_abilist_property_name, propBuf, "");
960     if (propBuf[0] == '\0') {
961         ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
962         return -1;
963     }
964     snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
965     addOption(cpuAbiListBuf);
966 
967     // Dalvik-cache pruning counter.
968     parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
969                        "-Xzygote-max-boot-retry=");
970 
971     /*
972      * When running with debug.generate-debug-info, add --generate-debug-info to
973      * the compiler options so that the boot image, if it is compiled on device,
974      * will include native debugging information.
975      */
976     property_get("debug.generate-debug-info", propBuf, "");
977     if (strcmp(propBuf, "true") == 0) {
978         addOption("-Xcompiler-option");
979         addOption("--generate-debug-info");
980         addOption("-Ximage-compiler-option");
981         addOption("--generate-debug-info");
982     }
983 
984     // The mini-debug-info makes it possible to backtrace through JIT code.
985     if (property_get_bool("dalvik.vm.minidebuginfo", 0)) {
986         addOption("-Xcompiler-option");
987         addOption("--generate-mini-debug-info");
988     }
989 
990     /*
991      * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
992      * contain the fingerprint and can be parsed.
993      * Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot
994      * be used here.
995      * Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions.
996      */
997     std::string fingerprint = GetProperty("ro.build.fingerprint", "");
998     if (!fingerprint.empty()) {
999         fingerprintBuf = "-Xfingerprint:" + fingerprint;
1000         addOption(fingerprintBuf.c_str());
1001     }
1002 
1003     initArgs.version = JNI_VERSION_1_4;
1004     initArgs.options = mOptions.editArray();
1005     initArgs.nOptions = mOptions.size();
1006     initArgs.ignoreUnrecognized = JNI_FALSE;
1007 
1008     /*
1009      * Initialize the VM.
1010      *
1011      * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
1012      * If this call succeeds, the VM is ready, and we can start issuing
1013      * JNI calls.
1014      */
1015     if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
1016         ALOGE("JNI_CreateJavaVM failed\n");
1017         return -1;
1018     }
1019 
1020     return 0;
1021 }
1022 
toSlashClassName(const char * className)1023 char* AndroidRuntime::toSlashClassName(const char* className)
1024 {
1025     char* result = strdup(className);
1026     for (char* cp = result; *cp != '\0'; cp++) {
1027         if (*cp == '.') {
1028             *cp = '/';
1029         }
1030     }
1031     return result;
1032 }
1033 
1034 /** Create a Java string from an ASCII or Latin-1 string */
NewStringLatin1(JNIEnv * env,const char * bytes)1035 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
1036     if (!bytes) return NULL;
1037     int length = strlen(bytes);
1038     jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
1039     if (!buffer) return NULL;
1040     jchar* chp = buffer;
1041     for (int i = 0; i < length; i++) {
1042         *chp++ = *bytes++;
1043     }
1044     return env->NewString(buffer, length);
1045 }
1046 
1047 
1048 /*
1049  * Start the Android runtime.  This involves starting the virtual machine
1050  * and calling the "static void main(String[] args)" method in the class
1051  * named by "className".
1052  *
1053  * Passes the main function two arguments, the class name and the specified
1054  * options string.
1055  */
start(const char * className,const Vector<String8> & options,bool zygote)1056 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
1057 {
1058     ALOGD(">>>>>> START %s uid %d <<<<<<\n",
1059             className != NULL ? className : "(unknown)", getuid());
1060 
1061     static const String8 startSystemServer("start-system-server");
1062 
1063     /*
1064      * 'startSystemServer == true' means runtime is obsolete and not run from
1065      * init.rc anymore, so we print out the boot start event here.
1066      */
1067     for (size_t i = 0; i < options.size(); ++i) {
1068         if (options[i] == startSystemServer) {
1069            /* track our progress through the boot sequence */
1070            const int LOG_BOOT_PROGRESS_START = 3000;
1071            LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
1072         }
1073     }
1074 
1075     const char* rootDir = getenv("ANDROID_ROOT");
1076     if (rootDir == NULL) {
1077         rootDir = "/system";
1078         if (!hasDir("/system")) {
1079             LOG_FATAL("No root directory specified, and /android does not exist.");
1080             return;
1081         }
1082         setenv("ANDROID_ROOT", rootDir, 1);
1083     }
1084 
1085     //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1086     //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1087 
1088     /* start the virtual machine */
1089     JniInvocation jni_invocation;
1090     jni_invocation.Init(NULL);
1091     JNIEnv* env;
1092     if (startVm(&mJavaVM, &env, zygote) != 0) {
1093         return;
1094     }
1095     onVmCreated(env);
1096 
1097     /*
1098      * Register android functions.
1099      */
1100     if (startReg(env) < 0) {
1101         ALOGE("Unable to register all android natives\n");
1102         return;
1103     }
1104 
1105     /*
1106      * We want to call main() with a String array with arguments in it.
1107      * At present we have two arguments, the class name and an option string.
1108      * Create an array to hold them.
1109      */
1110     jclass stringClass;
1111     jobjectArray strArray;
1112     jstring classNameStr;
1113 
1114     stringClass = env->FindClass("java/lang/String");
1115     assert(stringClass != NULL);
1116     strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1117     assert(strArray != NULL);
1118     classNameStr = env->NewStringUTF(className);
1119     assert(classNameStr != NULL);
1120     env->SetObjectArrayElement(strArray, 0, classNameStr);
1121 
1122     for (size_t i = 0; i < options.size(); ++i) {
1123         jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1124         assert(optionsStr != NULL);
1125         env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1126     }
1127 
1128     /*
1129      * Start VM.  This thread becomes the main thread of the VM, and will
1130      * not return until the VM exits.
1131      */
1132     char* slashClassName = toSlashClassName(className != NULL ? className : "");
1133     jclass startClass = env->FindClass(slashClassName);
1134     if (startClass == NULL) {
1135         ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1136         /* keep going */
1137     } else {
1138         jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1139             "([Ljava/lang/String;)V");
1140         if (startMeth == NULL) {
1141             ALOGE("JavaVM unable to find main() in '%s'\n", className);
1142             /* keep going */
1143         } else {
1144             env->CallStaticVoidMethod(startClass, startMeth, strArray);
1145 
1146 #if 0
1147             if (env->ExceptionCheck())
1148                 threadExitUncaughtException(env);
1149 #endif
1150         }
1151     }
1152     free(slashClassName);
1153 
1154     ALOGD("Shutting down VM\n");
1155     if (mJavaVM->DetachCurrentThread() != JNI_OK)
1156         ALOGW("Warning: unable to detach main thread\n");
1157     if (mJavaVM->DestroyJavaVM() != 0)
1158         ALOGW("Warning: VM did not shut down cleanly\n");
1159 }
1160 
exit(int code)1161 void AndroidRuntime::exit(int code)
1162 {
1163     if (mExitWithoutCleanup) {
1164         ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1165         ::_exit(code);
1166     } else {
1167         ALOGI("VM exiting with result code %d.", code);
1168         onExit(code);
1169         ::exit(code);
1170     }
1171 }
1172 
onVmCreated(JNIEnv * env)1173 void AndroidRuntime::onVmCreated(JNIEnv* env)
1174 {
1175     // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1176 }
1177 
1178 /*
1179  * Get the JNIEnv pointer for this thread.
1180  *
1181  * Returns NULL if the slot wasn't allocated or populated.
1182  */
getJNIEnv()1183 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1184 {
1185     JNIEnv* env;
1186     JavaVM* vm = AndroidRuntime::getJavaVM();
1187     assert(vm != NULL);
1188 
1189     if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1190         return NULL;
1191     return env;
1192 }
1193 
1194 /*
1195  * Makes the current thread visible to the VM.
1196  *
1197  * The JNIEnv pointer returned is only valid for the current thread, and
1198  * thus must be tucked into thread-local storage.
1199  */
javaAttachThread(const char * threadName,JNIEnv ** pEnv)1200 static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1201 {
1202     JavaVMAttachArgs args;
1203     JavaVM* vm;
1204     jint result;
1205 
1206     vm = AndroidRuntime::getJavaVM();
1207     assert(vm != NULL);
1208 
1209     args.version = JNI_VERSION_1_4;
1210     args.name = (char*) threadName;
1211     args.group = NULL;
1212 
1213     result = vm->AttachCurrentThread(pEnv, (void*) &args);
1214     if (result != JNI_OK)
1215         ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1216 
1217     return result;
1218 }
1219 
1220 /*
1221  * Detach the current thread from the set visible to the VM.
1222  */
javaDetachThread(void)1223 static int javaDetachThread(void)
1224 {
1225     JavaVM* vm;
1226     jint result;
1227 
1228     vm = AndroidRuntime::getJavaVM();
1229     assert(vm != NULL);
1230 
1231     result = vm->DetachCurrentThread();
1232     if (result != JNI_OK)
1233         ALOGE("ERROR: thread detach failed\n");
1234     return result;
1235 }
1236 
1237 /*
1238  * When starting a native thread that will be visible from the VM, we
1239  * bounce through this to get the right attach/detach action.
1240  * Note that this function calls free(args)
1241  */
javaThreadShell(void * args)1242 /*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1243     void* start = ((void**)args)[0];
1244     void* userData = ((void **)args)[1];
1245     char* name = (char*) ((void **)args)[2];        // we own this storage
1246     free(args);
1247     JNIEnv* env;
1248     int result;
1249 
1250     /* hook us into the VM */
1251     if (javaAttachThread(name, &env) != JNI_OK)
1252         return -1;
1253 
1254     /* start the thread running */
1255     result = (*(android_thread_func_t)start)(userData);
1256 
1257     /* unhook us */
1258     javaDetachThread();
1259     free(name);
1260 
1261     return result;
1262 }
1263 
1264 /*
1265  * This is invoked from androidCreateThreadEtc() via the callback
1266  * set with androidSetCreateThreadFunc().
1267  *
1268  * We need to create the new thread in such a way that it gets hooked
1269  * into the VM before it really starts executing.
1270  */
javaCreateThreadEtc(android_thread_func_t entryFunction,void * userData,const char * threadName,int32_t threadPriority,size_t threadStackSize,android_thread_id_t * threadId)1271 /*static*/ int AndroidRuntime::javaCreateThreadEtc(
1272                                 android_thread_func_t entryFunction,
1273                                 void* userData,
1274                                 const char* threadName,
1275                                 int32_t threadPriority,
1276                                 size_t threadStackSize,
1277                                 android_thread_id_t* threadId)
1278 {
1279     void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1280     int result;
1281 
1282     LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1283 
1284     args[0] = (void*) entryFunction;
1285     args[1] = userData;
1286     args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1287 
1288     result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1289         threadName, threadPriority, threadStackSize, threadId);
1290     return result;
1291 }
1292 
1293 /*
1294  * Create a thread that is visible from the VM.
1295  *
1296  * This is called from elsewhere in the library.
1297  */
createJavaThread(const char * name,void (* start)(void *),void * arg)1298 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1299     void (*start)(void *), void* arg)
1300 {
1301     android_thread_id_t threadId = 0;
1302     javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1303         ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1304     return threadId;
1305 }
1306 
1307 #if 0
1308 static void quickTest(void* arg)
1309 {
1310     const char* str = (const char*) arg;
1311 
1312     printf("In quickTest: %s\n", str);
1313 }
1314 #endif
1315 
1316 #ifdef NDEBUG
1317     #define REG_JNI(name)      { name }
1318     struct RegJNIRec {
1319         int (*mProc)(JNIEnv*);
1320     };
1321 #else
1322     #define REG_JNI(name)      { name, #name }
1323     struct RegJNIRec {
1324         int (*mProc)(JNIEnv*);
1325         const char* mName;
1326     };
1327 #endif
1328 
1329 typedef void (*RegJAMProc)();
1330 
register_jni_procs(const RegJNIRec array[],size_t count,JNIEnv * env)1331 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1332 {
1333     for (size_t i = 0; i < count; i++) {
1334         if (array[i].mProc(env) < 0) {
1335 #ifndef NDEBUG
1336             ALOGD("----------!!! %s failed to load\n", array[i].mName);
1337 #endif
1338             return -1;
1339         }
1340     }
1341     return 0;
1342 }
1343 
1344 static const RegJNIRec gRegJNI[] = {
1345     REG_JNI(register_com_android_internal_os_RuntimeInit),
1346     REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit),
1347     REG_JNI(register_android_os_SystemClock),
1348     REG_JNI(register_android_util_EventLog),
1349     REG_JNI(register_android_util_Log),
1350     REG_JNI(register_android_util_MemoryIntArray),
1351     REG_JNI(register_android_util_PathParser),
1352     REG_JNI(register_android_util_StatsLog),
1353     REG_JNI(register_android_app_admin_SecurityLog),
1354     REG_JNI(register_android_content_AssetManager),
1355     REG_JNI(register_android_content_StringBlock),
1356     REG_JNI(register_android_content_XmlBlock),
1357     REG_JNI(register_android_content_res_ApkAssets),
1358     REG_JNI(register_android_text_AndroidCharacter),
1359     REG_JNI(register_android_text_Hyphenator),
1360     REG_JNI(register_android_text_MeasuredParagraph),
1361     REG_JNI(register_android_text_StaticLayout),
1362     REG_JNI(register_android_view_InputDevice),
1363     REG_JNI(register_android_view_KeyCharacterMap),
1364     REG_JNI(register_android_os_Process),
1365     REG_JNI(register_android_os_SystemProperties),
1366     REG_JNI(register_android_os_Binder),
1367     REG_JNI(register_android_os_Parcel),
1368     REG_JNI(register_android_os_HidlSupport),
1369     REG_JNI(register_android_os_HwBinder),
1370     REG_JNI(register_android_os_HwBlob),
1371     REG_JNI(register_android_os_HwParcel),
1372     REG_JNI(register_android_os_HwRemoteBinder),
1373     REG_JNI(register_android_os_VintfObject),
1374     REG_JNI(register_android_os_VintfRuntimeInfo),
1375     REG_JNI(register_android_nio_utils),
1376     REG_JNI(register_android_graphics_Canvas),
1377     REG_JNI(register_android_graphics_Graphics),
1378     REG_JNI(register_android_view_DisplayEventReceiver),
1379     REG_JNI(register_android_view_RenderNode),
1380     REG_JNI(register_android_view_RenderNodeAnimator),
1381     REG_JNI(register_android_view_DisplayListCanvas),
1382     REG_JNI(register_android_view_TextureLayer),
1383     REG_JNI(register_android_view_ThreadedRenderer),
1384     REG_JNI(register_android_view_Surface),
1385     REG_JNI(register_android_view_SurfaceControl),
1386     REG_JNI(register_android_view_SurfaceSession),
1387     REG_JNI(register_android_view_TextureView),
1388     REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1389     REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1390     REG_JNI(register_com_google_android_gles_jni_GLImpl),
1391     REG_JNI(register_android_opengl_jni_EGL14),
1392     REG_JNI(register_android_opengl_jni_EGLExt),
1393     REG_JNI(register_android_opengl_jni_GLES10),
1394     REG_JNI(register_android_opengl_jni_GLES10Ext),
1395     REG_JNI(register_android_opengl_jni_GLES11),
1396     REG_JNI(register_android_opengl_jni_GLES11Ext),
1397     REG_JNI(register_android_opengl_jni_GLES20),
1398     REG_JNI(register_android_opengl_jni_GLES30),
1399     REG_JNI(register_android_opengl_jni_GLES31),
1400     REG_JNI(register_android_opengl_jni_GLES31Ext),
1401     REG_JNI(register_android_opengl_jni_GLES32),
1402 
1403     REG_JNI(register_android_graphics_Bitmap),
1404     REG_JNI(register_android_graphics_BitmapFactory),
1405     REG_JNI(register_android_graphics_BitmapRegionDecoder),
1406     REG_JNI(register_android_graphics_ByteBufferStreamAdaptor),
1407     REG_JNI(register_android_graphics_Camera),
1408     REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1409     REG_JNI(register_android_graphics_CanvasProperty),
1410     REG_JNI(register_android_graphics_ColorFilter),
1411     REG_JNI(register_android_graphics_DrawFilter),
1412     REG_JNI(register_android_graphics_FontFamily),
1413     REG_JNI(register_android_graphics_GraphicBuffer),
1414     REG_JNI(register_android_graphics_ImageDecoder),
1415     REG_JNI(register_android_graphics_drawable_AnimatedImageDrawable),
1416     REG_JNI(register_android_graphics_Interpolator),
1417     REG_JNI(register_android_graphics_MaskFilter),
1418     REG_JNI(register_android_graphics_Matrix),
1419     REG_JNI(register_android_graphics_Movie),
1420     REG_JNI(register_android_graphics_NinePatch),
1421     REG_JNI(register_android_graphics_Paint),
1422     REG_JNI(register_android_graphics_Path),
1423     REG_JNI(register_android_graphics_PathMeasure),
1424     REG_JNI(register_android_graphics_PathEffect),
1425     REG_JNI(register_android_graphics_Picture),
1426     REG_JNI(register_android_graphics_Region),
1427     REG_JNI(register_android_graphics_Shader),
1428     REG_JNI(register_android_graphics_SurfaceTexture),
1429     REG_JNI(register_android_graphics_Typeface),
1430     REG_JNI(register_android_graphics_YuvImage),
1431     REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
1432     REG_JNI(register_android_graphics_drawable_VectorDrawable),
1433     REG_JNI(register_android_graphics_pdf_PdfDocument),
1434     REG_JNI(register_android_graphics_pdf_PdfEditor),
1435     REG_JNI(register_android_graphics_pdf_PdfRenderer),
1436 
1437     REG_JNI(register_android_database_CursorWindow),
1438     REG_JNI(register_android_database_SQLiteConnection),
1439     REG_JNI(register_android_database_SQLiteGlobal),
1440     REG_JNI(register_android_database_SQLiteDebug),
1441     REG_JNI(register_android_os_Debug),
1442     REG_JNI(register_android_os_FileObserver),
1443     REG_JNI(register_android_os_GraphicsEnvironment),
1444     REG_JNI(register_android_os_MessageQueue),
1445     REG_JNI(register_android_os_SELinux),
1446     REG_JNI(register_android_os_Trace),
1447     REG_JNI(register_android_os_UEventObserver),
1448     REG_JNI(register_android_net_LocalSocketImpl),
1449     REG_JNI(register_android_net_NetworkUtils),
1450     REG_JNI(register_android_os_MemoryFile),
1451     REG_JNI(register_android_os_SharedMemory),
1452     REG_JNI(register_com_android_internal_os_ClassLoaderFactory),
1453     REG_JNI(register_com_android_internal_os_Zygote),
1454     REG_JNI(register_com_android_internal_os_ZygoteInit),
1455     REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1456     REG_JNI(register_android_hardware_Camera),
1457     REG_JNI(register_android_hardware_camera2_CameraMetadata),
1458     REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1459     REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1460     REG_JNI(register_android_hardware_camera2_DngCreator),
1461     REG_JNI(register_android_hardware_HardwareBuffer),
1462     REG_JNI(register_android_hardware_SensorManager),
1463     REG_JNI(register_android_hardware_SerialPort),
1464     REG_JNI(register_android_hardware_SoundTrigger),
1465     REG_JNI(register_android_hardware_UsbDevice),
1466     REG_JNI(register_android_hardware_UsbDeviceConnection),
1467     REG_JNI(register_android_hardware_UsbRequest),
1468     REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1469     REG_JNI(register_android_media_AudioRecord),
1470     REG_JNI(register_android_media_AudioSystem),
1471     REG_JNI(register_android_media_AudioTrack),
1472     REG_JNI(register_android_media_JetPlayer),
1473     REG_JNI(register_android_media_MicrophoneInfo),
1474     REG_JNI(register_android_media_RemoteDisplay),
1475     REG_JNI(register_android_media_ToneGenerator),
1476 
1477     REG_JNI(register_android_opengl_classes),
1478     REG_JNI(register_android_server_NetworkManagementSocketTagger),
1479     REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1480     REG_JNI(register_android_backup_BackupDataInput),
1481     REG_JNI(register_android_backup_BackupDataOutput),
1482     REG_JNI(register_android_backup_FileBackupHelperBase),
1483     REG_JNI(register_android_backup_BackupHelperDispatcher),
1484     REG_JNI(register_android_app_backup_FullBackup),
1485     REG_JNI(register_android_app_Activity),
1486     REG_JNI(register_android_app_ActivityThread),
1487     REG_JNI(register_android_app_NativeActivity),
1488     REG_JNI(register_android_util_jar_StrictJarFile),
1489     REG_JNI(register_android_view_InputChannel),
1490     REG_JNI(register_android_view_InputEventReceiver),
1491     REG_JNI(register_android_view_InputEventSender),
1492     REG_JNI(register_android_view_InputQueue),
1493     REG_JNI(register_android_view_KeyEvent),
1494     REG_JNI(register_android_view_MotionEvent),
1495     REG_JNI(register_android_view_PointerIcon),
1496     REG_JNI(register_android_view_VelocityTracker),
1497 
1498     REG_JNI(register_android_content_res_ObbScanner),
1499     REG_JNI(register_android_content_res_Configuration),
1500 
1501     REG_JNI(register_android_animation_PropertyValuesHolder),
1502     REG_JNI(register_android_security_Scrypt),
1503     REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1504     REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1505     REG_JNI(register_com_android_internal_os_FuseAppLoop),
1506 };
1507 
1508 /*
1509  * Register android native functions with the VM.
1510  */
startReg(JNIEnv * env)1511 /*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1512 {
1513     ATRACE_NAME("RegisterAndroidNatives");
1514     /*
1515      * This hook causes all future threads created in this process to be
1516      * attached to the JavaVM.  (This needs to go away in favor of JNI
1517      * Attach calls.)
1518      */
1519     androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1520 
1521     ALOGV("--- registering native functions ---\n");
1522 
1523     /*
1524      * Every "register" function calls one or more things that return
1525      * a local reference (e.g. FindClass).  Because we haven't really
1526      * started the VM yet, they're all getting stored in the base frame
1527      * and never released.  Use Push/Pop to manage the storage.
1528      */
1529     env->PushLocalFrame(200);
1530 
1531     if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1532         env->PopLocalFrame(NULL);
1533         return -1;
1534     }
1535     env->PopLocalFrame(NULL);
1536 
1537     //createJavaThread("fubar", quickTest, (void*) "hello");
1538 
1539     return 0;
1540 }
1541 
getRuntime()1542 AndroidRuntime* AndroidRuntime::getRuntime()
1543 {
1544     return gCurRuntime;
1545 }
1546 
1547 /**
1548  * Used by surface flinger's DdmConnection to register native methods from
1549  * the framework.
1550  */
registerFrameworkNatives(JNIEnv * env)1551 extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1552     return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1553 }
1554 }   // namespace android
1555