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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-base/macros.h>
22 #include <android-base/properties.h>
23 #include <android/graphics/jni_runtime.h>
24 #include <android_runtime/AndroidRuntime.h>
25 #include <android_runtime/vm.h>
26 #include <assert.h>
27 #include <binder/IBinder.h>
28 #include <binder/IPCThreadState.h>
29 #include <binder/IServiceManager.h>
30 #include <binder/Parcel.h>
31 #include <bionic/malloc.h>
32 #include <cutils/properties.h>
33 #include <dirent.h>
34 #include <dlfcn.h>
35 #include <nativehelper/JNIHelp.h>
36 #include <nativehelper/JniInvocation.h>
37 #include <server_configurable_flags/get_flags.h>
38 #include <signal.h>
39 #include <stdio.h>
40 #include <sys/stat.h>
41 #include <sys/types.h>
42 #include <utils/Log.h>
43 #include <utils/Trace.h>
44 #include <utils/misc.h>
45 #include <utils/threads.h>
46 
47 #include <string>
48 #include <vector>
49 
50 #include "android_util_Binder.h"
51 #include "jni.h"
52 
53 using namespace android;
54 using android::base::GetBoolProperty;
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_GraphicBuffer(JNIEnv* env);
60 
61 extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
62 extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
63 extern int register_android_opengl_jni_EGL14(JNIEnv* env);
64 extern int register_android_opengl_jni_EGL15(JNIEnv* env);
65 extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
66 extern int register_android_opengl_jni_GLES10(JNIEnv* env);
67 extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
68 extern int register_android_opengl_jni_GLES11(JNIEnv* env);
69 extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
70 extern int register_android_opengl_jni_GLES20(JNIEnv* env);
71 extern int register_android_opengl_jni_GLES30(JNIEnv* env);
72 extern int register_android_opengl_jni_GLES31(JNIEnv* env);
73 extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
74 extern int register_android_opengl_jni_GLES32(JNIEnv* env);
75 
76 extern int register_android_hardware_Camera(JNIEnv *env);
77 extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
78 extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
79 extern int register_android_hardware_camera2_impl_CameraExtensionJpegProcessor(JNIEnv* env);
80 extern int register_android_hardware_camera2_utils_SurfaceUtils(JNIEnv* env);
81 extern int register_android_hardware_display_DisplayManagerGlobal(JNIEnv* env);
82 extern int register_android_hardware_HardwareBuffer(JNIEnv *env);
83 extern int register_android_hardware_SensorManager(JNIEnv *env);
84 extern int register_android_hardware_SerialPort(JNIEnv *env);
85 extern int register_android_hardware_SyncFence(JNIEnv* env);
86 extern int register_android_hardware_UsbDevice(JNIEnv *env);
87 extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
88 extern int register_android_hardware_UsbRequest(JNIEnv *env);
89 extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
90 
91 extern int register_android_media_AudioDeviceAttributes(JNIEnv* env);
92 extern int register_android_media_AudioEffectDescriptor(JNIEnv *env);
93 extern int register_android_media_AudioRecord(JNIEnv *env);
94 extern int register_android_media_AudioSystem(JNIEnv *env);
95 extern int register_android_media_AudioTrack(JNIEnv *env);
96 extern int register_android_media_AudioAttributes(JNIEnv *env);
97 extern int register_android_media_AudioProductStrategies(JNIEnv *env);
98 extern int register_android_media_AudioVolumeGroups(JNIEnv *env);
99 extern int register_android_media_AudioVolumeGroupChangeHandler(JNIEnv *env);
100 extern int register_android_media_MicrophoneInfo(JNIEnv *env);
101 extern int register_android_media_ToneGenerator(JNIEnv *env);
102 extern int register_android_media_audio_common_AidlConversion(JNIEnv* env);
103 extern int register_android_media_midi(JNIEnv *env);
104 
105 namespace android {
106 
107 /*
108  * JNI-based registration functions.  Note these are properly contained in
109  * namespace android.
110  */
111 extern int register_android_app_admin_SecurityLog(JNIEnv* env);
112 extern int register_android_content_AssetManager(JNIEnv* env);
113 extern int register_android_util_CharsetUtils(JNIEnv* env);
114 extern int register_android_util_EventLog(JNIEnv* env);
115 extern int register_android_util_Log(JNIEnv* env);
116 extern int register_android_util_MemoryIntArray(JNIEnv* env);
117 extern int register_android_content_StringBlock(JNIEnv* env);
118 extern int register_android_content_XmlBlock(JNIEnv* env);
119 extern int register_android_content_res_ApkAssets(JNIEnv* env);
120 extern int register_android_graphics_BLASTBufferQueue(JNIEnv* env);
121 extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
122 extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
123 extern int register_android_view_InputApplicationHandle(JNIEnv* env);
124 extern int register_android_view_InputWindowHandle(JNIEnv* env);
125 extern int register_android_view_Surface(JNIEnv* env);
126 extern int register_android_view_SurfaceControl(JNIEnv* env);
127 extern int register_android_view_SurfaceControlHdrLayerInfoListener(JNIEnv* env);
128 extern int register_android_view_SurfaceSession(JNIEnv* env);
129 extern int register_android_view_CompositionSamplingListener(JNIEnv* env);
130 extern int register_android_view_TextureView(JNIEnv* env);
131 extern int register_android_view_TunnelModeEnabledListener(JNIEnv* env);
132 extern int register_android_database_CursorWindow(JNIEnv* env);
133 extern int register_android_database_SQLiteConnection(JNIEnv* env);
134 extern int register_android_database_SQLiteGlobal(JNIEnv* env);
135 extern int register_android_database_SQLiteDebug(JNIEnv* env);
136 extern int register_android_media_MediaMetrics(JNIEnv *env);
137 extern int register_android_os_Debug(JNIEnv* env);
138 extern int register_android_os_GraphicsEnvironment(JNIEnv* env);
139 extern int register_android_os_HidlSupport(JNIEnv* env);
140 extern int register_android_os_HwBinder(JNIEnv *env);
141 extern int register_android_os_HwBlob(JNIEnv *env);
142 extern int register_android_os_HwParcel(JNIEnv *env);
143 extern int register_android_os_HwRemoteBinder(JNIEnv *env);
144 extern int register_android_os_NativeHandle(JNIEnv *env);
145 extern int register_android_os_ServiceManager(JNIEnv *env);
146 extern int register_android_os_MessageQueue(JNIEnv* env);
147 extern int register_android_os_Parcel(JNIEnv* env);
148 extern int register_android_os_PerformanceHintManager(JNIEnv* env);
149 extern int register_android_os_SELinux(JNIEnv* env);
150 extern int register_android_os_VintfObject(JNIEnv *env);
151 extern int register_android_os_VintfRuntimeInfo(JNIEnv *env);
152 extern int register_android_os_storage_StorageManager(JNIEnv* env);
153 extern int register_android_os_SystemProperties(JNIEnv *env);
154 extern int register_android_os_SystemClock(JNIEnv* env);
155 extern int register_android_os_Trace(JNIEnv* env);
156 extern int register_android_os_FileObserver(JNIEnv *env);
157 extern int register_android_os_UEventObserver(JNIEnv* env);
158 extern int register_android_os_HidlMemory(JNIEnv* env);
159 extern int register_android_os_MemoryFile(JNIEnv* env);
160 extern int register_android_os_SharedMemory(JNIEnv* env);
161 extern int register_android_service_DataLoaderService(JNIEnv* env);
162 extern int register_android_os_incremental_IncrementalManager(JNIEnv* env);
163 extern int register_android_net_LocalSocketImpl(JNIEnv* env);
164 extern int register_android_text_AndroidCharacter(JNIEnv *env);
165 extern int register_android_text_Hyphenator(JNIEnv *env);
166 extern int register_android_opengl_classes(JNIEnv *env);
167 extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
168 extern int register_android_backup_BackupDataInput(JNIEnv *env);
169 extern int register_android_backup_BackupDataOutput(JNIEnv *env);
170 extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
171 extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
172 extern int register_android_app_backup_FullBackup(JNIEnv *env);
173 extern int register_android_app_Activity(JNIEnv *env);
174 extern int register_android_app_ActivityThread(JNIEnv *env);
175 extern int register_android_app_NativeActivity(JNIEnv *env);
176 extern int register_android_media_RemoteDisplay(JNIEnv *env);
177 extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
178 extern int register_android_view_InputChannel(JNIEnv* env);
179 extern int register_android_view_InputDevice(JNIEnv* env);
180 extern int register_android_view_InputEventReceiver(JNIEnv* env);
181 extern int register_android_view_InputEventSender(JNIEnv* env);
182 extern int register_android_view_InputQueue(JNIEnv* env);
183 extern int register_android_view_KeyCharacterMap(JNIEnv *env);
184 extern int register_android_view_KeyEvent(JNIEnv* env);
185 extern int register_android_view_MotionEvent(JNIEnv* env);
186 extern int register_android_view_PointerIcon(JNIEnv* env);
187 extern int register_android_view_VelocityTracker(JNIEnv* env);
188 extern int register_android_view_VerifiedKeyEvent(JNIEnv* env);
189 extern int register_android_view_VerifiedMotionEvent(JNIEnv* env);
190 extern int register_android_content_res_ObbScanner(JNIEnv* env);
191 extern int register_android_content_res_Configuration(JNIEnv* env);
192 extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
193 extern int register_android_security_Scrypt(JNIEnv *env);
194 extern int register_com_android_internal_content_F2fsUtils(JNIEnv* env);
195 extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
196 extern int register_com_android_internal_content_om_OverlayConfig(JNIEnv *env);
197 extern int register_com_android_internal_net_NetworkUtilsInternal(JNIEnv* env);
198 extern int register_com_android_internal_os_ClassLoaderFactory(JNIEnv* env);
199 extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env);
200 extern int register_com_android_internal_os_KernelAllocationStats(JNIEnv* env);
201 extern int register_com_android_internal_os_KernelCpuBpfTracking(JNIEnv* env);
202 extern int register_com_android_internal_os_KernelCpuTotalBpfMapReader(JNIEnv* env);
203 extern int register_com_android_internal_os_KernelCpuUidBpfMapReader(JNIEnv *env);
204 extern int register_com_android_internal_os_KernelSingleProcessCpuThreadReader(JNIEnv* env);
205 extern int register_com_android_internal_os_KernelSingleUidTimeReader(JNIEnv *env);
206 extern int register_com_android_internal_os_LongArrayMultiStateCounter(JNIEnv* env);
207 extern int register_com_android_internal_os_LongMultiStateCounter(JNIEnv* env);
208 extern int register_com_android_internal_os_Zygote(JNIEnv *env);
209 extern int register_com_android_internal_os_ZygoteCommandBuffer(JNIEnv *env);
210 extern int register_com_android_internal_os_ZygoteInit(JNIEnv *env);
211 extern int register_com_android_internal_security_VerityUtils(JNIEnv* env);
212 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
213 extern int register_android_window_WindowInfosListener(JNIEnv* env);
214 
215 // Namespace for Android Runtime flags applied during boot time.
216 static const char* RUNTIME_NATIVE_BOOT_NAMESPACE = "runtime_native_boot";
217 // Feature flag name to enable/disable generational garbage collection in ART's
218 // Concurrent Copying (CC) garbage collector.
219 static const char* ENABLE_GENERATIONAL_CC = "enable_generational_cc";
220 // Runtime option enabling generational garbage collection in ART's Concurrent
221 // Copying (CC) garbage collector.
222 static const char* kGenerationalCCRuntimeOption = "-Xgc:generational_cc";
223 // Runtime option disabling generational garbage collection in ART's Concurrent
224 // Copying (CC) garbage collector.
225 static const char* kNoGenerationalCCRuntimeOption = "-Xgc:nogenerational_cc";
226 
227 // Phenotype property name for enabling profiling the boot class path.
228 static const char* PROFILE_BOOT_CLASS_PATH = "profilebootclasspath";
229 
230 // Feature flag name for running the JIT in Zygote experiment, b/119800099.
231 // TODO: Rename the server-level flag or remove.
232 static const char* ENABLE_JITZYGOTE_IMAGE = "enable_apex_image";
233 // Flag to pass to the runtime when using the JIT Zygote image.
234 static const char* kJitZygoteImageOption = "-Xforcejitzygote";
235 
236 // Feature flag name for disabling lock profiling.
237 static const char* DISABLE_LOCK_PROFILING = "disable_lock_profiling";
238 // Runtime option disabling lock profiling.
239 static const char* kLockProfThresholdRuntimeOption = "-Xlockprofthreshold:0";
240 
241 static AndroidRuntime* gCurRuntime = NULL;
242 
243 /*
244  * Code written in the Java Programming Language calls here from main().
245  */
com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv * env,jobject clazz)246 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
247 {
248     gCurRuntime->onStarted();
249 }
250 
com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv * env,jobject clazz)251 static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
252 {
253     gCurRuntime->onZygoteInit();
254 }
255 
com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv * env,jobject clazz,jboolean exitWithoutCleanup)256 static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
257         jobject clazz, jboolean exitWithoutCleanup)
258 {
259     gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
260 }
261 
262 /*
263  * JNI registration.
264  */
265 
register_com_android_internal_os_RuntimeInit(JNIEnv * env)266 int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
267 {
268     const JNINativeMethod methods[] = {
269             {"nativeFinishInit", "()V",
270              (void*)com_android_internal_os_RuntimeInit_nativeFinishInit},
271             {"nativeSetExitWithoutCleanup", "(Z)V",
272              (void*)com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup},
273     };
274     return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
275         methods, NELEM(methods));
276 }
277 
register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv * env)278 int register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env)
279 {
280     const JNINativeMethod methods[] = {
281         { "nativeZygoteInit", "()V",
282             (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit },
283     };
284     return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit",
285         methods, NELEM(methods));
286 }
287 
288 // ----------------------------------------------------------------------
289 
290 /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
291 
AndroidRuntime(char * argBlockStart,const size_t argBlockLength)292 AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
293         mExitWithoutCleanup(false),
294         mArgBlockStart(argBlockStart),
295         mArgBlockLength(argBlockLength)
296 {
297     init_android_graphics();
298 
299     // Pre-allocate enough space to hold a fair number of options.
300     mOptions.setCapacity(20);
301 
302     assert(gCurRuntime == NULL);        // one per process
303     gCurRuntime = this;
304 }
305 
~AndroidRuntime()306 AndroidRuntime::~AndroidRuntime()
307 {
308 }
309 
310 /*
311  * Register native methods using JNI.
312  */
registerNativeMethods(JNIEnv * env,const char * className,const JNINativeMethod * gMethods,int numMethods)313 /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
314     const char* className, const JNINativeMethod* gMethods, int numMethods)
315 {
316     return jniRegisterNativeMethods(env, className, gMethods, numMethods);
317 }
318 
setArgv0(const char * argv0,bool setProcName)319 void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
320     // Set the kernel's task name, for as much of the name as we can fit.
321     // The kernel's TASK_COMM_LEN minus one for the terminating NUL == 15.
322     if (setProcName) {
323         int len = strlen(argv0);
324         if (len < 15) {
325             pthread_setname_np(pthread_self(), argv0);
326         } else {
327             pthread_setname_np(pthread_self(), argv0 + len - 15);
328         }
329     }
330 
331     // Directly change the memory pointed to by argv[0].
332     memset(mArgBlockStart, 0, mArgBlockLength);
333     strlcpy(mArgBlockStart, argv0, mArgBlockLength);
334 
335     // Let bionic know that we just did that, because __progname points
336     // into argv[0] (https://issuetracker.google.com/152893281).
337     setprogname(mArgBlockStart);
338 }
339 
callMain(const String8 & className,jclass clazz,const Vector<String8> & args)340 status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
341     const Vector<String8>& args)
342 {
343     JNIEnv* env;
344     jmethodID methodId;
345 
346     ALOGD("Calling main entry %s", className.string());
347 
348     env = getJNIEnv();
349     if (clazz == NULL || env == NULL) {
350         return UNKNOWN_ERROR;
351     }
352 
353     methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
354     if (methodId == NULL) {
355         ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
356         return UNKNOWN_ERROR;
357     }
358 
359     /*
360      * We want to call main() with a String array with our arguments in it.
361      * Create an array and populate it.
362      */
363     jclass stringClass;
364     jobjectArray strArray;
365 
366     const size_t numArgs = args.size();
367     stringClass = env->FindClass("java/lang/String");
368     strArray = env->NewObjectArray(numArgs, stringClass, NULL);
369 
370     for (size_t i = 0; i < numArgs; i++) {
371         jstring argStr = env->NewStringUTF(args[i].string());
372         env->SetObjectArrayElement(strArray, i, argStr);
373     }
374 
375     env->CallStaticVoidMethod(clazz, methodId, strArray);
376     return NO_ERROR;
377 }
378 
379 /*
380  * The VM calls this through the "exit" hook.
381  */
runtime_exit(int code)382 static void runtime_exit(int code)
383 {
384     gCurRuntime->exit(code);
385 }
386 
387 /*
388  * The VM calls this through the "vfprintf" hook.
389  *
390  * We ignore "fp" and just write the results to the log file.
391  */
runtime_vfprintf(FILE * fp,const char * format,va_list ap)392 static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
393 {
394     LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
395 }
396 
397 /**
398  * The VM calls this when mutex contention debugging is enabled to
399  * determine whether or not the blocked thread was a "sensitive thread"
400  * for user responsiveness/smoothess.
401  *
402  * Our policy for this is whether or not we're tracing any StrictMode
403  * events on this thread (which we might've inherited via Binder calls
404  * into us)
405  */
runtime_isSensitiveThread()406 static bool runtime_isSensitiveThread() {
407     IPCThreadState* state = IPCThreadState::selfOrNull();
408     return state && state->getStrictModePolicy() != 0;
409 }
410 
hasDir(const char * dir)411 static int hasDir(const char* dir)
412 {
413     struct stat s;
414     int res = stat(dir, &s);
415     if (res == 0) {
416         return S_ISDIR(s.st_mode);
417     }
418     return 0;
419 }
420 
hasFile(const char * file)421 static bool hasFile(const char* file) {
422     struct stat s;
423     int res = stat(file, &s);
424     if (res == 0) {
425         return S_ISREG(s.st_mode);
426     }
427     return false;
428 }
429 
430 /*
431  * Read the persistent locale. Inspects the following system properties
432  * (in order) and returns the first non-empty property in the list :
433  *
434  * (1) persist.sys.locale
435  * (2) persist.sys.language/country/localevar (country and localevar are
436  * inspected iff. language is non-empty.
437  * (3) ro.product.locale
438  * (4) ro.product.locale.language/region
439  *
440  * Note that we need to inspect persist.sys.language/country/localevar to
441  * preserve language settings for devices that are upgrading from Lollipop
442  * to M. The same goes for ro.product.locale.language/region as well.
443  */
readLocale()444 const std::string readLocale()
445 {
446     const std::string locale = GetProperty("persist.sys.locale", "");
447     if (!locale.empty()) {
448         return locale;
449     }
450 
451     const std::string language = GetProperty("persist.sys.language", "");
452     if (!language.empty()) {
453         const std::string country = GetProperty("persist.sys.country", "");
454         const std::string variant = GetProperty("persist.sys.localevar", "");
455 
456         std::string out = language;
457         if (!country.empty()) {
458             out = out + "-" + country;
459         }
460 
461         if (!variant.empty()) {
462             out = out + "-" + variant;
463         }
464 
465         return out;
466     }
467 
468     const std::string productLocale = GetProperty("ro.product.locale", "");
469     if (!productLocale.empty()) {
470         return productLocale;
471     }
472 
473     // If persist.sys.locale and ro.product.locale are missing,
474     // construct a locale value from the individual locale components.
475     const std::string productLanguage = GetProperty("ro.product.locale.language", "en");
476     const std::string productRegion = GetProperty("ro.product.locale.region", "US");
477 
478     return productLanguage + "-" + productRegion;
479 }
480 
addOption(const char * optionString,void * extraInfo)481 void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
482 {
483     JavaVMOption opt;
484     opt.optionString = optionString;
485     opt.extraInfo = extraInfo;
486     mOptions.add(opt);
487 }
488 
489 /*
490  * Parse a property containing space-separated options that should be
491  * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
492  *
493  * This will cut up "extraOptsBuf" as we chop it into individual options.
494  *
495  * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
496  *
497  * Adds the strings, if any, to mOptions.
498  */
parseExtraOpts(char * extraOptsBuf,const char * quotingArg)499 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
500 {
501     char* start = extraOptsBuf;
502     char* end = NULL;
503     while (*start != '\0') {
504         while (*start == ' ')                   /* skip leading whitespace */
505             start++;
506         if (*start == '\0')                     /* was trailing ws, bail */
507             break;
508 
509         end = start+1;
510         while (*end != ' ' && *end != '\0')     /* find end of token */
511             end++;
512         if (*end == ' ')
513             *end++ = '\0';          /* mark end, advance to indicate more */
514 
515         if (quotingArg != NULL) {
516             addOption(quotingArg);
517         }
518         addOption(start);
519         start = end;
520     }
521 }
522 
523 /*
524  * Reads a "property" into "buffer" with a default of "defaultArg". If
525  * the property is non-empty, it is treated as a runtime option such
526  * as "-Xmx32m".
527  *
528  * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
529  *
530  * If an argument is found, it is added to mOptions.
531  *
532  * If an option is found, it is added to mOptions and true is
533  * returned. Otherwise false is returned.
534  */
parseRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * defaultArg)535 bool AndroidRuntime::parseRuntimeOption(const char* property,
536                                         char* buffer,
537                                         const char* runtimeArg,
538                                         const char* defaultArg)
539 {
540     strcpy(buffer, runtimeArg);
541     size_t runtimeArgLen = strlen(runtimeArg);
542     property_get(property, buffer+runtimeArgLen, defaultArg);
543     if (buffer[runtimeArgLen] == '\0') {
544         return false;
545     }
546     addOption(buffer);
547     return true;
548 }
549 
550 /*
551  * Reads a "property" into "buffer". If the property is non-empty, it
552  * is treated as a dex2oat compiler option that should be
553  * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified".
554  *
555  * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
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  */
parseCompilerOption(const char * property,char * buffer,const char * compilerArg,const char * quotingArg)562 bool AndroidRuntime::parseCompilerOption(const char* property,
563                                          char* buffer,
564                                          const char* compilerArg,
565                                          const char* quotingArg)
566 {
567     strcpy(buffer, compilerArg);
568     size_t compilerArgLen = strlen(compilerArg);
569     property_get(property, buffer+compilerArgLen, "");
570     if (buffer[compilerArgLen] == '\0') {
571         return false;
572     }
573     addOption(quotingArg);
574     addOption(buffer);
575     return true;
576 }
577 
578 /*
579  * Reads a "property" into "buffer". If the property is non-empty, it
580  * is treated as a dex2oat compiler runtime option that should be
581  * passed as a quoted option, e.g. "-Ximage-compiler-option
582  * --runtime-arg -Ximage-compiler-option -Xmx32m".
583  *
584  * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
585  *
586  * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
587  *
588  * If an option is found, it is added to mOptions and true is
589  * returned. Otherwise false is returned.
590  */
parseCompilerRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * quotingArg)591 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
592                                                 char* buffer,
593                                                 const char* runtimeArg,
594                                                 const char* quotingArg)
595 {
596     strcpy(buffer, runtimeArg);
597     size_t runtimeArgLen = strlen(runtimeArg);
598     property_get(property, buffer+runtimeArgLen, "");
599     if (buffer[runtimeArgLen] == '\0') {
600         return false;
601     }
602     addOption(quotingArg);
603     addOption("--runtime-arg");
604     addOption(quotingArg);
605     addOption(buffer);
606     return true;
607 }
608 
609 /*
610  * Start the Dalvik Virtual Machine.
611  *
612  * Various arguments, most determined by system properties, are passed in.
613  * The "mOptions" vector is updated.
614  *
615  * CAUTION: when adding options in here, be careful not to put the
616  * char buffer inside a nested scope.  Adding the buffer to the
617  * options using mOptions.add() does not copy the buffer, so if the
618  * buffer goes out of scope the option may be overwritten.  It's best
619  * to put the buffer at the top of the function so that it is more
620  * unlikely that someone will surround it in a scope at a later time
621  * and thus introduce a bug.
622  *
623  * Returns 0 on success.
624  */
startVm(JavaVM ** pJavaVM,JNIEnv ** pEnv,bool zygote,bool primary_zygote)625 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote, bool primary_zygote)
626 {
627     JavaVMInitArgs initArgs;
628     char propBuf[PROPERTY_VALUE_MAX];
629     char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
630     char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
631     char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
632     char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
633     char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
634     char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
635     char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
636     char jitpthreadpriorityOptsBuf[sizeof("-Xjitpthreadpriority:")-1 + PROPERTY_VALUE_MAX];
637     char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
638     char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
639     char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
640     char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
641     char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
642     char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
643     char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX];
644     char saveResolvedClassesDelayMsOptsBuf[
645             sizeof("-Xps-save-resolved-classes-delay-ms:")-1 + PROPERTY_VALUE_MAX];
646     char profileMinSavePeriodOptsBuf[sizeof("-Xps-min-save-period-ms:")-1 + PROPERTY_VALUE_MAX];
647     char profileMinFirstSaveOptsBuf[
648             sizeof("-Xps-min-first-save-ms:")-1 + PROPERTY_VALUE_MAX];
649     char madviseRandomOptsBuf[sizeof("-XX:MadviseRandomAccess:")-1 + PROPERTY_VALUE_MAX];
650     char madviseWillNeedFileSizeVdex[
651             sizeof("-XMadviseWillNeedVdexFileSize:")-1 + PROPERTY_VALUE_MAX];
652     char madviseWillNeedFileSizeOdex[
653             sizeof("-XMadviseWillNeedOdexFileSize:")-1 + PROPERTY_VALUE_MAX];
654     char madviseWillNeedFileSizeArt[
655             sizeof("-XMadviseWillNeedArtFileSize:")-1 + PROPERTY_VALUE_MAX];
656     char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
657     char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
658     char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
659     char foregroundHeapGrowthMultiplierOptsBuf[
660             sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX];
661     char finalizerTimeoutMsOptsBuf[sizeof("-XX:FinalizerTimeoutMs=")-1 + PROPERTY_VALUE_MAX];
662     char threadSuspendTimeoutOptsBuf[sizeof("-XX:ThreadSuspendTimeout=")-1 + PROPERTY_VALUE_MAX];
663     char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
664     char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
665     char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
666     char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
667     char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
668     char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
669     char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
670     char dex2oatCpuSetBuf[sizeof("--cpu-set=")-1 + PROPERTY_VALUE_MAX];
671     char dex2oatCpuSetImageBuf[sizeof("--cpu-set=")-1 + PROPERTY_VALUE_MAX];
672     char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
673     char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
674     char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
675     char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
676     char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
677     char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
678     char extraOptsBuf[PROPERTY_VALUE_MAX];
679     char voldDecryptBuf[PROPERTY_VALUE_MAX];
680     char perfettoHprofOptBuf[sizeof("-XX:PerfettoHprof=") + PROPERTY_VALUE_MAX];
681     char perfettoJavaHeapStackOptBuf[
682             sizeof("-XX:PerfettoJavaHeapStackProf=") + PROPERTY_VALUE_MAX];
683     enum {
684       kEMDefault,
685       kEMIntPortable,
686       kEMIntFast,
687       kEMJitCompiler,
688     } executionMode = kEMDefault;
689     char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
690     char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
691     char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
692     char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
693     char corePlatformApiPolicyBuf[sizeof("-Xcore-platform-api-policy:") + PROPERTY_VALUE_MAX];
694     char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
695     char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
696     std::string fingerprintBuf;
697     char javaZygoteForkLoopBuf[sizeof("-XX:ForceJavaZygoteForkLoop=") + PROPERTY_VALUE_MAX];
698     char jdwpProviderBuf[sizeof("-XjdwpProvider:") - 1 + PROPERTY_VALUE_MAX];
699     char opaqueJniIds[sizeof("-Xopaque-jni-ids:") - 1 + PROPERTY_VALUE_MAX];
700     char bootImageBuf[sizeof("-Ximage:") - 1 + PROPERTY_VALUE_MAX];
701 
702     // Read if we are using the profile configuration, do this at the start since the last ART args
703     // take precedence.
704     property_get("dalvik.vm.profilebootclasspath", propBuf, "");
705     std::string profile_boot_class_path_flag = propBuf;
706     // Empty means the property is unset and we should default to the phenotype property.
707     // The possible values are {"true", "false", ""}
708     if (profile_boot_class_path_flag.empty()) {
709         profile_boot_class_path_flag = server_configurable_flags::GetServerConfigurableFlag(
710                 RUNTIME_NATIVE_BOOT_NAMESPACE,
711                 PROFILE_BOOT_CLASS_PATH,
712                 /*default_value=*/ "");
713     }
714     const bool profile_boot_class_path = (profile_boot_class_path_flag == "true");
715     if (profile_boot_class_path) {
716         addOption("-Xcompiler-option");
717         addOption("--count-hotness-in-compiled-code");
718         addOption("-Xps-profile-boot-class-path");
719         addOption("-Xps-profile-aot-code");
720         addOption("-Xjitsaveprofilinginfo");
721     }
722 
723     std::string use_jitzygote_image_flag =
724             server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
725                                                                  ENABLE_JITZYGOTE_IMAGE,
726                                                                  /*default_value=*/"");
727     // Use the APEX boot image for boot class path profiling to get JIT samples on BCP methods.
728     // Also use the APEX boot image if it's explicitly enabled via configuration flag.
729     const bool use_apex_image = profile_boot_class_path || (use_jitzygote_image_flag == "true");
730     if (use_apex_image) {
731         ALOGI("Using JIT Zygote image: '%s'\n", kJitZygoteImageOption);
732         addOption(kJitZygoteImageOption);
733     } else if (parseRuntimeOption("dalvik.vm.boot-image", bootImageBuf, "-Ximage:")) {
734         ALOGI("Using dalvik.vm.boot-image: '%s'\n", bootImageBuf);
735     } else {
736         ALOGI("Using default boot image");
737     }
738 
739     std::string disable_lock_profiling =
740         server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
741                                                              DISABLE_LOCK_PROFILING,
742                                                              /*default_value=*/ "");
743     if (disable_lock_profiling == "true") {
744         addOption(kLockProfThresholdRuntimeOption);
745         ALOGI("Disabling lock profiling: '%s'\n", kLockProfThresholdRuntimeOption);
746     } else {
747         ALOGI("Leaving lock profiling enabled");
748     }
749 
750     const bool checkJni = GetBoolProperty("dalvik.vm.checkjni", false);
751     if (checkJni) {
752         ALOGD("CheckJNI is ON");
753 
754         /* extended JNI checking */
755         addOption("-Xcheck:jni");
756 
757         /* with -Xcheck:jni, this provides a JNI function call trace */
758         //addOption("-verbose:jni");
759     }
760 
761     const bool odsignVerificationSuccess = GetBoolProperty("odsign.verification.success", false);
762     if (!odsignVerificationSuccess) {
763         addOption("-Xdeny-art-apex-data-files");
764     }
765 
766     property_get("dalvik.vm.execution-mode", propBuf, "");
767     if (strcmp(propBuf, "int:portable") == 0) {
768         executionMode = kEMIntPortable;
769     } else if (strcmp(propBuf, "int:fast") == 0) {
770         executionMode = kEMIntFast;
771     } else if (strcmp(propBuf, "int:jit") == 0) {
772         executionMode = kEMJitCompiler;
773     }
774 
775     strcpy(jniOptsBuf, "-Xjniopts:");
776     if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
777         ALOGI("JNI options: '%s'\n", jniOptsBuf);
778     }
779 
780     /* route exit() to our handler */
781     addOption("exit", (void*) runtime_exit);
782 
783     /* route fprintf() to our handler */
784     addOption("vfprintf", (void*) runtime_vfprintf);
785 
786     /* register the framework-specific "is sensitive thread" hook */
787     addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
788 
789     /* enable verbose; standard options are { jni, gc, class } */
790     //addOption("-verbose:jni");
791     addOption("-verbose:gc");
792     //addOption("-verbose:class");
793 
794     // On Android, we always want to allow loading the PerfettoHprof plugin.
795     // Even with this option set, we will still only actually load the plugin
796     // if we are on a userdebug build or the app is debuggable or profileable.
797     // This is enforced in art/runtime/runtime.cc.
798     //
799     // We want to be able to disable this, because this does not work on host,
800     // and we do not want to enable it in tests.
801     parseRuntimeOption("dalvik.vm.perfetto_hprof", perfettoHprofOptBuf, "-XX:PerfettoHprof=",
802                        "true");
803 
804     // Enable PerfettoJavaHeapStackProf in the zygote
805     parseRuntimeOption("dalvik.vm.perfetto_javaheap", perfettoJavaHeapStackOptBuf,
806                        "-XX:PerfettoJavaHeapStackProf=", "true");
807 
808     if (primary_zygote) {
809         addOption("-Xprimaryzygote");
810     }
811 
812     /*
813      * The default starting and maximum size of the heap.  Larger
814      * values should be specified in a product property override.
815      */
816     parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
817     parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
818 
819     parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
820     parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
821     parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
822     parseRuntimeOption("dalvik.vm.heaptargetutilization",
823                        heaptargetutilizationOptsBuf,
824                        "-XX:HeapTargetUtilization=");
825 
826     /* Foreground heap growth multiplier option */
827     parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier",
828                        foregroundHeapGrowthMultiplierOptsBuf,
829                        "-XX:ForegroundHeapGrowthMultiplier=");
830     /*
831      * Finalizer and thread suspend timeouts.
832      */
833     parseRuntimeOption("dalvik.vm.finalizer-timeout-ms",
834                        finalizerTimeoutMsOptsBuf,
835                        "-XX:FinalizerTimeoutMs=");
836     parseRuntimeOption("dalvik.vm.thread-suspend-timeout-ms",
837                        threadSuspendTimeoutOptsBuf,
838                        "-XX:ThreadSuspendTimeout=");
839     /*
840      * JIT related options.
841      */
842     parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
843     parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
844     parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
845     parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
846     parseRuntimeOption("dalvik.vm.jitpthreadpriority",
847                        jitpthreadpriorityOptsBuf,
848                        "-Xjitpthreadpriority:");
849     property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
850     if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
851         addOption("-Xjitsaveprofilinginfo");
852     }
853 
854     parseRuntimeOption("dalvik.vm.jitprithreadweight",
855                        jitprithreadweightOptBuf,
856                        "-Xjitprithreadweight:");
857 
858     parseRuntimeOption("dalvik.vm.jittransitionweight",
859                        jittransitionweightOptBuf,
860                        "-Xjittransitionweight:");
861     /*
862      * Madvise related options.
863      */
864     parseRuntimeOption("dalvik.vm.madvise-random", madviseRandomOptsBuf, "-XX:MadviseRandomAccess:");
865 
866     /*
867      * Use default platform configuration as limits for madvising,
868      * when no properties are specified.
869      */
870     parseRuntimeOption("dalvik.vm.madvise.vdexfile.size",
871                        madviseWillNeedFileSizeVdex,
872                        "-XMadviseWillNeedVdexFileSize:");
873 
874     parseRuntimeOption("dalvik.vm.madvise.odexfile.size",
875                        madviseWillNeedFileSizeOdex,
876                        "-XMadviseWillNeedOdexFileSize:");
877 
878     parseRuntimeOption("dalvik.vm.madvise.artfile.size",
879                        madviseWillNeedFileSizeArt,
880                        "-XMadviseWillNeedArtFileSize:");
881 
882     /*
883      * Profile related options.
884      */
885     parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf,
886             "-Xps-hot-startup-method-samples:");
887 
888     parseRuntimeOption("dalvik.vm.ps-resolved-classes-delay-ms", saveResolvedClassesDelayMsOptsBuf,
889             "-Xps-save-resolved-classes-delay-ms:");
890 
891     parseRuntimeOption("dalvik.vm.ps-min-save-period-ms", profileMinSavePeriodOptsBuf,
892             "-Xps-min-save-period-ms:");
893 
894     parseRuntimeOption("dalvik.vm.ps-min-first-save-ms", profileMinFirstSaveOptsBuf,
895             "-Xps-min-first-save-ms:");
896 
897     property_get("ro.config.low_ram", propBuf, "");
898     if (strcmp(propBuf, "true") == 0) {
899       addOption("-XX:LowMemoryMode");
900     }
901 
902     /*
903      * Garbage-collection related options.
904      */
905     parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
906 
907     // If it set, honor the "enable_generational_cc" device configuration;
908     // otherwise, let the runtime use its default behavior.
909     std::string enable_generational_cc =
910         server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
911                                                              ENABLE_GENERATIONAL_CC,
912                                                              /*default_value=*/ "");
913     if (enable_generational_cc == "true") {
914         addOption(kGenerationalCCRuntimeOption);
915     } else if (enable_generational_cc == "false") {
916         addOption(kNoGenerationalCCRuntimeOption);
917     }
918 
919     parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
920 
921     /*
922      * Enable/disable zygote native fork loop.
923      */
924     parseRuntimeOption("dalvik.vm.force-java-zygote-fork-loop",
925                        javaZygoteForkLoopBuf,
926                        "-XX:ForceJavaZygoteForkLoop=");
927 
928     /*
929      * Enable debugging only for apps forked from zygote.
930      */
931     if (zygote) {
932       // Set the JDWP provider and required arguments. By default let the runtime choose how JDWP is
933       // implemented. When this is not set the runtime defaults to not allowing JDWP.
934       addOption("-XjdwpOptions:suspend=n,server=y");
935       parseRuntimeOption("dalvik.vm.jdwp-provider",
936                          jdwpProviderBuf,
937                          "-XjdwpProvider:",
938                          "default");
939     }
940 
941     // Only pass an explicit opaque-jni-ids to apps forked from zygote
942     if (zygote) {
943       parseRuntimeOption("dalvik.vm.opaque-jni-ids",
944                         opaqueJniIds,
945                         "-Xopaque-jni-ids:",
946                         "swapable");
947     }
948 
949     parseRuntimeOption("dalvik.vm.lockprof.threshold",
950                        lockProfThresholdBuf,
951                        "-Xlockprofthreshold:");
952 
953     if (executionMode == kEMIntPortable) {
954         addOption("-Xint:portable");
955     } else if (executionMode == kEMIntFast) {
956         addOption("-Xint:fast");
957     } else if (executionMode == kEMJitCompiler) {
958         addOption("-Xint:jit");
959     }
960 
961     // If we are booting without the real /data, don't spend time compiling.
962     property_get("vold.decrypt", voldDecryptBuf, "");
963     bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
964                              (strcmp(voldDecryptBuf, "1") == 0));
965 
966     // Extra options for JIT.
967     if (skip_compilation) {
968         addOption("-Xcompiler-option");
969         addOption("--compiler-filter=assume-verified");
970     } else {
971         parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
972                             "--compiler-filter=", "-Xcompiler-option");
973     }
974     parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
975     parseCompilerOption("dalvik.vm.dex2oat-cpu-set", dex2oatCpuSetBuf, "--cpu-set=",
976                         "-Xcompiler-option");
977 
978     // Copy the variant.
979     sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", ABI_STRING);
980     parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
981                         "--instruction-set-variant=", "-Xcompiler-option");
982     // Copy the features.
983     sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", ABI_STRING);
984     parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
985                         "--instruction-set-features=", "-Xcompiler-option");
986 
987     /*
988      * When running with debug.generate-debug-info, add --generate-debug-info to the compiler
989      * options so that both JITted code and the boot image, if it is compiled on device, will
990      * include native debugging information.
991      */
992     property_get("debug.generate-debug-info", propBuf, "");
993     bool generate_debug_info = (strcmp(propBuf, "true") == 0);
994     if (generate_debug_info) {
995         addOption("-Xcompiler-option");
996         addOption("--generate-debug-info");
997     }
998 
999     // The mini-debug-info makes it possible to backtrace through compiled code.
1000     bool generate_mini_debug_info = property_get_bool("dalvik.vm.minidebuginfo", 0);
1001     if (generate_mini_debug_info) {
1002         addOption("-Xcompiler-option");
1003         addOption("--generate-mini-debug-info");
1004     }
1005 
1006     property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
1007     parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
1008 
1009     /* extra options; parse this late so it overrides others */
1010     property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
1011     parseExtraOpts(extraOptsBuf, NULL);
1012 
1013     // Extra options for boot image generation.
1014     if (skip_compilation) {
1015         addOption("-Xnoimage-dex2oat");
1016     } else {
1017         parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
1018                                    "-Xms", "-Ximage-compiler-option");
1019         parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
1020                                    "-Xmx", "-Ximage-compiler-option");
1021 
1022         parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
1023                             "--compiler-filter=", "-Ximage-compiler-option");
1024 
1025         // If there is a dirty-image-objects file, push it.
1026         if (hasFile("/system/etc/dirty-image-objects")) {
1027             addOption("-Ximage-compiler-option");
1028             addOption("--dirty-image-objects=/system/etc/dirty-image-objects");
1029         }
1030 
1031         parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
1032                             "-Ximage-compiler-option");
1033         parseCompilerOption("dalvik.vm.image-dex2oat-cpu-set", dex2oatCpuSetImageBuf, "--cpu-set=",
1034                             "-Ximage-compiler-option");
1035 
1036         // The runtime may compile a boot image, when necessary, not using installd. Thus, we need
1037         // to pass the instruction-set-features/variant as an image-compiler-option.
1038         // Note: it is OK to reuse the buffer, as the values are exactly the same between
1039         //       * compiler-option, used for runtime compilation (DexClassLoader)
1040         //       * image-compiler-option, used for boot-image compilation on device
1041         parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
1042                             "--instruction-set-variant=", "-Ximage-compiler-option");
1043         parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
1044                             "--instruction-set-features=", "-Ximage-compiler-option");
1045 
1046         if (generate_debug_info) {
1047             addOption("-Ximage-compiler-option");
1048             addOption("--generate-debug-info");
1049         }
1050 
1051         if (generate_mini_debug_info) {
1052             addOption("-Ximage-compiler-option");
1053             addOption("--generate-mini-debug-info");
1054         }
1055 
1056         property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
1057         parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
1058     }
1059 
1060     /* Set the properties for locale */
1061     {
1062         strcpy(localeOption, "-Duser.locale=");
1063         const std::string locale = readLocale();
1064         strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
1065         addOption(localeOption);
1066     }
1067 
1068     // Trace files are stored in /data/misc/trace which is writable only in debug mode.
1069     property_get("ro.debuggable", propBuf, "0");
1070     if (strcmp(propBuf, "1") == 0) {
1071         property_get("dalvik.vm.method-trace", propBuf, "false");
1072         if (strcmp(propBuf, "true") == 0) {
1073             addOption("-Xmethod-trace");
1074             parseRuntimeOption("dalvik.vm.method-trace-file",
1075                                methodTraceFileBuf,
1076                                "-Xmethod-trace-file:");
1077             parseRuntimeOption("dalvik.vm.method-trace-file-siz",
1078                                methodTraceFileSizeBuf,
1079                                "-Xmethod-trace-file-size:");
1080             property_get("dalvik.vm.method-trace-stream", propBuf, "false");
1081             if (strcmp(propBuf, "true") == 0) {
1082                 addOption("-Xmethod-trace-stream");
1083             }
1084         }
1085     }
1086 
1087     // Native bridge library. "0" means that native bridge is disabled.
1088     //
1089     // Note: bridging is only enabled for the zygote. Other runs of
1090     //       app_process may not have the permissions to mount etc.
1091     property_get("ro.dalvik.vm.native.bridge", propBuf, "");
1092     if (propBuf[0] == '\0') {
1093         ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
1094     } else if (zygote && strcmp(propBuf, "0") != 0) {
1095         snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
1096                  "-XX:NativeBridge=%s", propBuf);
1097         addOption(nativeBridgeLibrary);
1098     }
1099 
1100 #if defined(__LP64__)
1101     const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
1102 #else
1103     const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
1104 #endif  // defined(__LP64__)
1105     property_get(cpu_abilist_property_name, propBuf, "");
1106     if (propBuf[0] == '\0') {
1107         ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
1108         return -1;
1109     }
1110     snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
1111     addOption(cpuAbiListBuf);
1112 
1113     // Dalvik-cache pruning counter.
1114     parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
1115                        "-Xzygote-max-boot-retry=");
1116 
1117     // If set, the property below can be used to enable core platform API violation reporting.
1118     property_get("persist.debug.dalvik.vm.core_platform_api_policy", propBuf, "");
1119     if (propBuf[0] != '\0') {
1120       snprintf(corePlatformApiPolicyBuf,
1121                sizeof(corePlatformApiPolicyBuf),
1122                "-Xcore-platform-api-policy:%s",
1123                propBuf);
1124       addOption(corePlatformApiPolicyBuf);
1125     }
1126 
1127     /*
1128      * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
1129      * contain the fingerprint and can be parsed.
1130      * Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot
1131      * be used here.
1132      * Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions.
1133      */
1134     std::string fingerprint = GetProperty("ro.build.fingerprint", "");
1135     if (!fingerprint.empty()) {
1136         fingerprintBuf = "-Xfingerprint:" + fingerprint;
1137         addOption(fingerprintBuf.c_str());
1138     }
1139 
1140     initArgs.version = JNI_VERSION_1_4;
1141     initArgs.options = mOptions.editArray();
1142     initArgs.nOptions = mOptions.size();
1143     initArgs.ignoreUnrecognized = JNI_FALSE;
1144 
1145     /*
1146      * Initialize the VM.
1147      *
1148      * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
1149      * If this call succeeds, the VM is ready, and we can start issuing
1150      * JNI calls.
1151      */
1152     if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
1153         ALOGE("JNI_CreateJavaVM failed\n");
1154         return -1;
1155     }
1156 
1157     return 0;
1158 }
1159 
toSlashClassName(const char * className)1160 char* AndroidRuntime::toSlashClassName(const char* className)
1161 {
1162     char* result = strdup(className);
1163     for (char* cp = result; *cp != '\0'; cp++) {
1164         if (*cp == '.') {
1165             *cp = '/';
1166         }
1167     }
1168     return result;
1169 }
1170 
1171 /** Create a Java string from an ASCII or Latin-1 string */
NewStringLatin1(JNIEnv * env,const char * bytes)1172 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
1173     if (!bytes) return NULL;
1174     int length = strlen(bytes);
1175     jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
1176     if (!buffer) return NULL;
1177     jchar* chp = buffer;
1178     for (int i = 0; i < length; i++) {
1179         *chp++ = *bytes++;
1180     }
1181     return env->NewString(buffer, length);
1182 }
1183 
1184 
1185 /*
1186  * Start the Android runtime.  This involves starting the virtual machine
1187  * and calling the "static void main(String[] args)" method in the class
1188  * named by "className".
1189  *
1190  * Passes the main function two arguments, the class name and the specified
1191  * options string.
1192  */
start(const char * className,const Vector<String8> & options,bool zygote)1193 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
1194 {
1195     ALOGD(">>>>>> START %s uid %d <<<<<<\n",
1196             className != NULL ? className : "(unknown)", getuid());
1197 
1198     static const String8 startSystemServer("start-system-server");
1199     // Whether this is the primary zygote, meaning the zygote which will fork system server.
1200     bool primary_zygote = false;
1201 
1202     /*
1203      * 'startSystemServer == true' means runtime is obsolete and not run from
1204      * init.rc anymore, so we print out the boot start event here.
1205      */
1206     for (size_t i = 0; i < options.size(); ++i) {
1207         if (options[i] == startSystemServer) {
1208             primary_zygote = true;
1209            /* track our progress through the boot sequence */
1210            const int LOG_BOOT_PROGRESS_START = 3000;
1211            LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
1212         }
1213     }
1214 
1215     const char* rootDir = getenv("ANDROID_ROOT");
1216     if (rootDir == NULL) {
1217         rootDir = "/system";
1218         if (!hasDir("/system")) {
1219             LOG_FATAL("No root directory specified, and /system does not exist.");
1220             return;
1221         }
1222         setenv("ANDROID_ROOT", rootDir, 1);
1223     }
1224 
1225     const char* artRootDir = getenv("ANDROID_ART_ROOT");
1226     if (artRootDir == NULL) {
1227         LOG_FATAL("No ART directory specified with ANDROID_ART_ROOT environment variable.");
1228         return;
1229     }
1230 
1231     const char* i18nRootDir = getenv("ANDROID_I18N_ROOT");
1232     if (i18nRootDir == NULL) {
1233         LOG_FATAL("No runtime directory specified with ANDROID_I18N_ROOT environment variable.");
1234         return;
1235     }
1236 
1237     const char* tzdataRootDir = getenv("ANDROID_TZDATA_ROOT");
1238     if (tzdataRootDir == NULL) {
1239         LOG_FATAL("No tz data directory specified with ANDROID_TZDATA_ROOT environment variable.");
1240         return;
1241     }
1242 
1243     //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1244     //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1245 
1246     /* start the virtual machine */
1247     JniInvocation jni_invocation;
1248     jni_invocation.Init(NULL);
1249     JNIEnv* env;
1250     if (startVm(&mJavaVM, &env, zygote, primary_zygote) != 0) {
1251         return;
1252     }
1253     onVmCreated(env);
1254 
1255     /*
1256      * Register android functions.
1257      */
1258     if (startReg(env) < 0) {
1259         ALOGE("Unable to register all android natives\n");
1260         return;
1261     }
1262 
1263     /*
1264      * We want to call main() with a String array with arguments in it.
1265      * At present we have two arguments, the class name and an option string.
1266      * Create an array to hold them.
1267      */
1268     jclass stringClass;
1269     jobjectArray strArray;
1270     jstring classNameStr;
1271 
1272     stringClass = env->FindClass("java/lang/String");
1273     assert(stringClass != NULL);
1274     strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1275     assert(strArray != NULL);
1276     classNameStr = env->NewStringUTF(className);
1277     assert(classNameStr != NULL);
1278     env->SetObjectArrayElement(strArray, 0, classNameStr);
1279 
1280     for (size_t i = 0; i < options.size(); ++i) {
1281         jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1282         assert(optionsStr != NULL);
1283         env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1284     }
1285 
1286     /*
1287      * Start VM.  This thread becomes the main thread of the VM, and will
1288      * not return until the VM exits.
1289      */
1290     char* slashClassName = toSlashClassName(className != NULL ? className : "");
1291     jclass startClass = env->FindClass(slashClassName);
1292     if (startClass == NULL) {
1293         ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1294         /* keep going */
1295     } else {
1296         jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1297             "([Ljava/lang/String;)V");
1298         if (startMeth == NULL) {
1299             ALOGE("JavaVM unable to find main() in '%s'\n", className);
1300             /* keep going */
1301         } else {
1302             env->CallStaticVoidMethod(startClass, startMeth, strArray);
1303 
1304 #if 0
1305             if (env->ExceptionCheck())
1306                 threadExitUncaughtException(env);
1307 #endif
1308         }
1309     }
1310     free(slashClassName);
1311 
1312     ALOGD("Shutting down VM\n");
1313     if (mJavaVM->DetachCurrentThread() != JNI_OK)
1314         ALOGW("Warning: unable to detach main thread\n");
1315     if (mJavaVM->DestroyJavaVM() != 0)
1316         ALOGW("Warning: VM did not shut down cleanly\n");
1317 }
1318 
exit(int code)1319 void AndroidRuntime::exit(int code)
1320 {
1321     if (mExitWithoutCleanup) {
1322         ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1323     } else {
1324         ALOGI("VM exiting with result code %d.", code);
1325         onExit(code);
1326     }
1327     ::_exit(code);
1328 }
1329 
onVmCreated(JNIEnv * env)1330 void AndroidRuntime::onVmCreated(JNIEnv* env)
1331 {
1332     // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1333 }
1334 
getJavaVM()1335 /*static*/ JavaVM* AndroidRuntime::getJavaVM() {
1336     return AndroidRuntime::mJavaVM;
1337 }
1338 
AndroidRuntimeGetJavaVM()1339 extern "C" JavaVM* AndroidRuntimeGetJavaVM() {
1340     return AndroidRuntime::getJavaVM();
1341 }
1342 
1343 /*
1344  * Get the JNIEnv pointer for this thread.
1345  *
1346  * Returns NULL if the slot wasn't allocated or populated.
1347  */
getJNIEnv()1348 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1349 {
1350     JNIEnv* env;
1351     JavaVM* vm = AndroidRuntime::getJavaVM();
1352     assert(vm != NULL);
1353 
1354     if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1355         return NULL;
1356     return env;
1357 }
1358 
1359 /*
1360  * Makes the current thread visible to the VM.
1361  *
1362  * The JNIEnv pointer returned is only valid for the current thread, and
1363  * thus must be tucked into thread-local storage.
1364  */
javaAttachThread(const char * threadName,JNIEnv ** pEnv)1365 static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1366 {
1367     JavaVMAttachArgs args;
1368     JavaVM* vm;
1369     jint result;
1370 
1371     vm = AndroidRuntime::getJavaVM();
1372     assert(vm != NULL);
1373 
1374     args.version = JNI_VERSION_1_4;
1375     args.name = (char*) threadName;
1376     args.group = NULL;
1377 
1378     result = vm->AttachCurrentThread(pEnv, (void*) &args);
1379     if (result != JNI_OK)
1380         ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1381 
1382     return result;
1383 }
1384 
1385 /*
1386  * Detach the current thread from the set visible to the VM.
1387  */
javaDetachThread(void)1388 static int javaDetachThread(void)
1389 {
1390     JavaVM* vm;
1391     jint result;
1392 
1393     vm = AndroidRuntime::getJavaVM();
1394     assert(vm != NULL);
1395 
1396     result = vm->DetachCurrentThread();
1397     if (result != JNI_OK)
1398         ALOGE("ERROR: thread detach failed\n");
1399     return result;
1400 }
1401 
1402 /*
1403  * When starting a native thread that will be visible from the VM, we
1404  * bounce through this to get the right attach/detach action.
1405  * Note that this function calls free(args)
1406  */
javaThreadShell(void * args)1407 /*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1408     void* start = ((void**)args)[0];
1409     void* userData = ((void **)args)[1];
1410     char* name = (char*) ((void **)args)[2];        // we own this storage
1411     free(args);
1412     JNIEnv* env;
1413     int result;
1414 
1415     /* hook us into the VM */
1416     if (javaAttachThread(name, &env) != JNI_OK)
1417         return -1;
1418 
1419     /* start the thread running */
1420     result = (*(android_thread_func_t)start)(userData);
1421 
1422     /* unhook us */
1423     javaDetachThread();
1424     free(name);
1425 
1426     return result;
1427 }
1428 
1429 /*
1430  * This is invoked from androidCreateThreadEtc() via the callback
1431  * set with androidSetCreateThreadFunc().
1432  *
1433  * We need to create the new thread in such a way that it gets hooked
1434  * into the VM before it really starts executing.
1435  */
javaCreateThreadEtc(android_thread_func_t entryFunction,void * userData,const char * threadName,int32_t threadPriority,size_t threadStackSize,android_thread_id_t * threadId)1436 /*static*/ int AndroidRuntime::javaCreateThreadEtc(
1437                                 android_thread_func_t entryFunction,
1438                                 void* userData,
1439                                 const char* threadName,
1440                                 int32_t threadPriority,
1441                                 size_t threadStackSize,
1442                                 android_thread_id_t* threadId)
1443 {
1444     void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1445     int result;
1446 
1447     LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1448 
1449     args[0] = (void*) entryFunction;
1450     args[1] = userData;
1451     args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1452 
1453     result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1454         threadName, threadPriority, threadStackSize, threadId);
1455     return result;
1456 }
1457 
1458 /*
1459  * Create a thread that is visible from the VM.
1460  *
1461  * This is called from elsewhere in the library.
1462  */
createJavaThread(const char * name,void (* start)(void *),void * arg)1463 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1464     void (*start)(void *), void* arg)
1465 {
1466     android_thread_id_t threadId = 0;
1467     javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1468         ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1469     return threadId;
1470 }
1471 
1472 #if 0
1473 static void quickTest(void* arg)
1474 {
1475     const char* str = (const char*) arg;
1476 
1477     printf("In quickTest: %s\n", str);
1478 }
1479 #endif
1480 
1481 #ifdef NDEBUG
1482     #define REG_JNI(name)      { name }
1483     struct RegJNIRec {
1484         int (*mProc)(JNIEnv*);
1485     };
1486 #else
1487     #define REG_JNI(name)      { name, #name }
1488     struct RegJNIRec {
1489         int (*mProc)(JNIEnv*);
1490         const char* mName;
1491     };
1492 #endif
1493 
1494 typedef void (*RegJAMProc)();
1495 
register_jni_procs(const RegJNIRec array[],size_t count,JNIEnv * env)1496 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1497 {
1498     for (size_t i = 0; i < count; i++) {
1499         if (array[i].mProc(env) < 0) {
1500 #ifndef NDEBUG
1501             ALOGD("----------!!! %s failed to load\n", array[i].mName);
1502 #endif
1503             return -1;
1504         }
1505     }
1506     return 0;
1507 }
1508 
1509 static const RegJNIRec gRegJNI[] = {
1510         REG_JNI(register_com_android_internal_os_RuntimeInit),
1511         REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit),
1512         REG_JNI(register_android_os_SystemClock),
1513         REG_JNI(register_android_util_CharsetUtils),
1514         REG_JNI(register_android_util_EventLog),
1515         REG_JNI(register_android_util_Log),
1516         REG_JNI(register_android_util_MemoryIntArray),
1517         REG_JNI(register_android_app_admin_SecurityLog),
1518         REG_JNI(register_android_content_AssetManager),
1519         REG_JNI(register_android_content_StringBlock),
1520         REG_JNI(register_android_content_XmlBlock),
1521         REG_JNI(register_android_content_res_ApkAssets),
1522         REG_JNI(register_android_text_AndroidCharacter),
1523         REG_JNI(register_android_text_Hyphenator),
1524         REG_JNI(register_android_view_InputDevice),
1525         REG_JNI(register_android_view_KeyCharacterMap),
1526         REG_JNI(register_android_os_Process),
1527         REG_JNI(register_android_os_SystemProperties),
1528         REG_JNI(register_android_os_Binder),
1529         REG_JNI(register_android_os_Parcel),
1530         REG_JNI(register_android_os_PerformanceHintManager),
1531         REG_JNI(register_android_os_HidlMemory),
1532         REG_JNI(register_android_os_HidlSupport),
1533         REG_JNI(register_android_os_HwBinder),
1534         REG_JNI(register_android_os_HwBlob),
1535         REG_JNI(register_android_os_HwParcel),
1536         REG_JNI(register_android_os_HwRemoteBinder),
1537         REG_JNI(register_android_os_NativeHandle),
1538         REG_JNI(register_android_os_ServiceManager),
1539         REG_JNI(register_android_os_storage_StorageManager),
1540         REG_JNI(register_android_os_VintfObject),
1541         REG_JNI(register_android_os_VintfRuntimeInfo),
1542         REG_JNI(register_android_service_DataLoaderService),
1543         REG_JNI(register_android_view_DisplayEventReceiver),
1544         REG_JNI(register_android_view_InputApplicationHandle),
1545         REG_JNI(register_android_view_InputWindowHandle),
1546         REG_JNI(register_android_view_Surface),
1547         REG_JNI(register_android_view_SurfaceControl),
1548         REG_JNI(register_android_view_SurfaceControlHdrLayerInfoListener),
1549         REG_JNI(register_android_view_SurfaceSession),
1550         REG_JNI(register_android_view_CompositionSamplingListener),
1551         REG_JNI(register_android_view_TextureView),
1552         REG_JNI(register_android_view_TunnelModeEnabledListener),
1553         REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1554         REG_JNI(register_com_google_android_gles_jni_GLImpl),
1555         REG_JNI(register_android_opengl_jni_EGL14),
1556         REG_JNI(register_android_opengl_jni_EGL15),
1557         REG_JNI(register_android_opengl_jni_EGLExt),
1558         REG_JNI(register_android_opengl_jni_GLES10),
1559         REG_JNI(register_android_opengl_jni_GLES10Ext),
1560         REG_JNI(register_android_opengl_jni_GLES11),
1561         REG_JNI(register_android_opengl_jni_GLES11Ext),
1562         REG_JNI(register_android_opengl_jni_GLES20),
1563         REG_JNI(register_android_opengl_jni_GLES30),
1564         REG_JNI(register_android_opengl_jni_GLES31),
1565         REG_JNI(register_android_opengl_jni_GLES31Ext),
1566         REG_JNI(register_android_opengl_jni_GLES32),
1567         REG_JNI(register_android_graphics_classes),
1568         REG_JNI(register_android_graphics_BLASTBufferQueue),
1569         REG_JNI(register_android_graphics_GraphicBuffer),
1570         REG_JNI(register_android_graphics_GraphicsStatsService),
1571         REG_JNI(register_android_graphics_SurfaceTexture),
1572         REG_JNI(register_android_database_CursorWindow),
1573         REG_JNI(register_android_database_SQLiteConnection),
1574         REG_JNI(register_android_database_SQLiteGlobal),
1575         REG_JNI(register_android_database_SQLiteDebug),
1576         REG_JNI(register_android_os_Debug),
1577         REG_JNI(register_android_os_FileObserver),
1578         REG_JNI(register_android_os_GraphicsEnvironment),
1579         REG_JNI(register_android_os_MessageQueue),
1580         REG_JNI(register_android_os_SELinux),
1581         REG_JNI(register_android_os_Trace),
1582         REG_JNI(register_android_os_UEventObserver),
1583         REG_JNI(register_android_net_LocalSocketImpl),
1584         REG_JNI(register_android_os_MemoryFile),
1585         REG_JNI(register_android_os_SharedMemory),
1586         REG_JNI(register_android_os_incremental_IncrementalManager),
1587         REG_JNI(register_com_android_internal_content_om_OverlayConfig),
1588         REG_JNI(register_com_android_internal_net_NetworkUtilsInternal),
1589         REG_JNI(register_com_android_internal_os_ClassLoaderFactory),
1590         REG_JNI(register_com_android_internal_os_LongArrayMultiStateCounter),
1591         REG_JNI(register_com_android_internal_os_LongMultiStateCounter),
1592         REG_JNI(register_com_android_internal_os_Zygote),
1593         REG_JNI(register_com_android_internal_os_ZygoteCommandBuffer),
1594         REG_JNI(register_com_android_internal_os_ZygoteInit),
1595         REG_JNI(register_com_android_internal_security_VerityUtils),
1596         REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1597         REG_JNI(register_android_hardware_Camera),
1598         REG_JNI(register_android_hardware_camera2_CameraMetadata),
1599         REG_JNI(register_android_hardware_camera2_DngCreator),
1600         REG_JNI(register_android_hardware_camera2_impl_CameraExtensionJpegProcessor),
1601         REG_JNI(register_android_hardware_camera2_utils_SurfaceUtils),
1602         REG_JNI(register_android_hardware_display_DisplayManagerGlobal),
1603         REG_JNI(register_android_hardware_HardwareBuffer),
1604         REG_JNI(register_android_hardware_SensorManager),
1605         REG_JNI(register_android_hardware_SerialPort),
1606         REG_JNI(register_android_hardware_SyncFence),
1607         REG_JNI(register_android_hardware_UsbDevice),
1608         REG_JNI(register_android_hardware_UsbDeviceConnection),
1609         REG_JNI(register_android_hardware_UsbRequest),
1610         REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1611         REG_JNI(register_android_media_AudioDeviceAttributes),
1612         REG_JNI(register_android_media_AudioEffectDescriptor),
1613         REG_JNI(register_android_media_AudioSystem),
1614         REG_JNI(register_android_media_AudioRecord),
1615         REG_JNI(register_android_media_AudioTrack),
1616         REG_JNI(register_android_media_AudioAttributes),
1617         REG_JNI(register_android_media_AudioProductStrategies),
1618         REG_JNI(register_android_media_AudioVolumeGroups),
1619         REG_JNI(register_android_media_AudioVolumeGroupChangeHandler),
1620         REG_JNI(register_android_media_MediaMetrics),
1621         REG_JNI(register_android_media_MicrophoneInfo),
1622         REG_JNI(register_android_media_RemoteDisplay),
1623         REG_JNI(register_android_media_ToneGenerator),
1624         REG_JNI(register_android_media_audio_common_AidlConversion),
1625         REG_JNI(register_android_media_midi),
1626 
1627         REG_JNI(register_android_opengl_classes),
1628         REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1629         REG_JNI(register_android_backup_BackupDataInput),
1630         REG_JNI(register_android_backup_BackupDataOutput),
1631         REG_JNI(register_android_backup_FileBackupHelperBase),
1632         REG_JNI(register_android_backup_BackupHelperDispatcher),
1633         REG_JNI(register_android_app_backup_FullBackup),
1634         REG_JNI(register_android_app_Activity),
1635         REG_JNI(register_android_app_ActivityThread),
1636         REG_JNI(register_android_app_NativeActivity),
1637         REG_JNI(register_android_util_jar_StrictJarFile),
1638         REG_JNI(register_android_view_InputChannel),
1639         REG_JNI(register_android_view_InputEventReceiver),
1640         REG_JNI(register_android_view_InputEventSender),
1641         REG_JNI(register_android_view_InputQueue),
1642         REG_JNI(register_android_view_KeyEvent),
1643         REG_JNI(register_android_view_MotionEvent),
1644         REG_JNI(register_android_view_PointerIcon),
1645         REG_JNI(register_android_view_VelocityTracker),
1646         REG_JNI(register_android_view_VerifiedKeyEvent),
1647         REG_JNI(register_android_view_VerifiedMotionEvent),
1648 
1649         REG_JNI(register_android_content_res_ObbScanner),
1650         REG_JNI(register_android_content_res_Configuration),
1651 
1652         REG_JNI(register_android_animation_PropertyValuesHolder),
1653         REG_JNI(register_android_security_Scrypt),
1654         REG_JNI(register_com_android_internal_content_F2fsUtils),
1655         REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1656         REG_JNI(register_com_android_internal_os_FuseAppLoop),
1657         REG_JNI(register_com_android_internal_os_KernelAllocationStats),
1658         REG_JNI(register_com_android_internal_os_KernelCpuBpfTracking),
1659         REG_JNI(register_com_android_internal_os_KernelCpuTotalBpfMapReader),
1660         REG_JNI(register_com_android_internal_os_KernelCpuUidBpfMapReader),
1661         REG_JNI(register_com_android_internal_os_KernelSingleProcessCpuThreadReader),
1662         REG_JNI(register_com_android_internal_os_KernelSingleUidTimeReader),
1663 
1664         REG_JNI(register_android_window_WindowInfosListener),
1665 };
1666 
1667 /*
1668  * Register android native functions with the VM.
1669  */
startReg(JNIEnv * env)1670 /*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1671 {
1672     ATRACE_NAME("RegisterAndroidNatives");
1673     /*
1674      * This hook causes all future threads created in this process to be
1675      * attached to the JavaVM.  (This needs to go away in favor of JNI
1676      * Attach calls.)
1677      */
1678     androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1679 
1680     ALOGV("--- registering native functions ---\n");
1681 
1682     /*
1683      * Every "register" function calls one or more things that return
1684      * a local reference (e.g. FindClass).  Because we haven't really
1685      * started the VM yet, they're all getting stored in the base frame
1686      * and never released.  Use Push/Pop to manage the storage.
1687      */
1688     env->PushLocalFrame(200);
1689 
1690     if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1691         env->PopLocalFrame(NULL);
1692         return -1;
1693     }
1694     env->PopLocalFrame(NULL);
1695 
1696     //createJavaThread("fubar", quickTest, (void*) "hello");
1697 
1698     return 0;
1699 }
1700 
getRuntime()1701 AndroidRuntime* AndroidRuntime::getRuntime()
1702 {
1703     return gCurRuntime;
1704 }
1705 
1706 /**
1707  * Used by surface flinger's DdmConnection to register native methods from
1708  * the framework.
1709  */
registerFrameworkNatives(JNIEnv * env)1710 extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1711     return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1712 }
1713 }   // namespace android
1714