xref: /aosp_15_r20/frameworks/base/core/jni/AndroidRuntime.cpp (revision d57664e9bc4670b3ecf6748a746a57c557b6bc9e) 
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/parsebool.h>
23 #include <android-base/properties.h>
24 #include <android/graphics/jni_runtime.h>
25 #include <android_runtime/AndroidRuntime.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 using android::base::ParseBool;
57 using android::base::ParseBoolResult;
58 
59 extern int register_android_os_Binder(JNIEnv* env);
60 extern int register_android_os_Process(JNIEnv* env);
61 extern int register_android_graphics_GraphicBuffer(JNIEnv* env);
62 
63 extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
64 extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
65 extern int register_android_opengl_jni_EGL14(JNIEnv* env);
66 extern int register_android_opengl_jni_EGL15(JNIEnv* env);
67 extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
68 extern int register_android_opengl_jni_GLES10(JNIEnv* env);
69 extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
70 extern int register_android_opengl_jni_GLES11(JNIEnv* env);
71 extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
72 extern int register_android_opengl_jni_GLES20(JNIEnv* env);
73 extern int register_android_opengl_jni_GLES30(JNIEnv* env);
74 extern int register_android_opengl_jni_GLES31(JNIEnv* env);
75 extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
76 extern int register_android_opengl_jni_GLES32(JNIEnv* env);
77 
78 extern int register_android_hardware_Camera(JNIEnv *env);
79 extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
80 extern int register_android_hardware_camera2_CameraDevice(JNIEnv *env);
81 extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
82 extern int register_android_hardware_camera2_impl_CameraExtensionJpegProcessor(JNIEnv* env);
83 extern int register_android_hardware_camera2_utils_SurfaceUtils(JNIEnv* env);
84 extern int register_android_hardware_display_DisplayManagerGlobal(JNIEnv* env);
85 extern int register_android_hardware_HardwareBuffer(JNIEnv *env);
86 extern int register_android_hardware_OverlayProperties(JNIEnv* env);
87 extern int register_android_hardware_SensorManager(JNIEnv *env);
88 extern int register_android_hardware_SerialPort(JNIEnv *env);
89 extern int register_android_hardware_SyncFence(JNIEnv* env);
90 extern int register_android_hardware_UsbDevice(JNIEnv *env);
91 extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
92 extern int register_android_hardware_UsbRequest(JNIEnv *env);
93 extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
94 
95 extern int register_android_media_AudioDeviceAttributes(JNIEnv* env);
96 extern int register_android_media_AudioEffectDescriptor(JNIEnv *env);
97 extern int register_android_media_AudioRecord(JNIEnv *env);
98 extern int register_android_media_AudioSystem(JNIEnv *env);
99 extern int register_android_media_AudioTrack(JNIEnv *env);
100 extern int register_android_media_AudioAttributes(JNIEnv *env);
101 extern int register_android_media_AudioProductStrategies(JNIEnv *env);
102 extern int register_android_media_AudioVolumeGroups(JNIEnv *env);
103 extern int register_android_media_AudioVolumeGroupChangeHandler(JNIEnv *env);
104 extern int register_android_media_MicrophoneInfo(JNIEnv *env);
105 extern int register_android_media_ToneGenerator(JNIEnv *env);
106 extern int register_android_media_audio_common_AidlConversion(JNIEnv* env);
107 extern int register_android_media_midi(JNIEnv *env);
108 
109 namespace android {
110 
111 /*
112  * JNI-based registration functions.  Note these are properly contained in
113  * namespace android.
114  */
115 extern int register_android_app_admin_SecurityLog(JNIEnv* env);
116 extern int register_android_content_AssetManager(JNIEnv* env);
117 extern int register_android_util_CharsetUtils(JNIEnv* env);
118 extern int register_android_util_EventLog(JNIEnv* env);
119 extern int register_android_util_Log(JNIEnv* env);
120 extern int register_android_util_MemoryIntArray(JNIEnv* env);
121 extern int register_android_content_StringBlock(JNIEnv* env);
122 extern int register_android_content_XmlBlock(JNIEnv* env);
123 extern int register_android_content_res_ApkAssets(JNIEnv* env);
124 extern int register_android_content_res_ResourceTimer(JNIEnv* env);
125 extern int register_android_graphics_BLASTBufferQueue(JNIEnv* env);
126 extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
127 extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
128 extern int register_android_view_InputApplicationHandle(JNIEnv* env);
129 extern int register_android_view_InputWindowHandle(JNIEnv* env);
130 extern int register_android_view_Surface(JNIEnv* env);
131 extern int register_android_view_SurfaceControl(JNIEnv* env);
132 extern int register_android_view_SurfaceControlActivePictureListener(JNIEnv* env);
133 extern int register_android_view_SurfaceControlHdrLayerInfoListener(JNIEnv* env);
134 extern int register_android_view_SurfaceSession(JNIEnv* env);
135 extern int register_android_view_CompositionSamplingListener(JNIEnv* env);
136 extern int register_android_view_TextureView(JNIEnv* env);
137 extern int register_android_view_TunnelModeEnabledListener(JNIEnv* env);
138 extern int register_android_database_CursorWindow(JNIEnv* env);
139 extern int register_android_database_SQLiteConnection(JNIEnv* env);
140 extern int register_android_database_SQLiteGlobal(JNIEnv* env);
141 extern int register_android_database_SQLiteDebug(JNIEnv* env);
142 extern int register_android_database_SQLiteRawStatement(JNIEnv* env);
143 extern int register_android_media_MediaMetrics(JNIEnv *env);
144 extern int register_android_os_Debug(JNIEnv* env);
145 extern int register_android_os_GraphicsEnvironment(JNIEnv* env);
146 extern int register_android_os_HidlSupport(JNIEnv* env);
147 extern int register_android_os_HwBinder(JNIEnv *env);
148 extern int register_android_os_HwBlob(JNIEnv *env);
149 extern int register_android_os_HwParcel(JNIEnv *env);
150 extern int register_android_os_HwRemoteBinder(JNIEnv *env);
151 extern int register_android_os_NativeHandle(JNIEnv *env);
152 extern int register_android_os_ServiceManager(JNIEnv *env);
153 extern int register_android_os_ServiceManagerNative(JNIEnv* env);
154 extern int register_android_os_MessageQueue(JNIEnv* env);
155 extern int register_android_os_Parcel(JNIEnv* env);
156 extern int register_android_os_PerformanceHintManager(JNIEnv* env);
157 extern int register_android_os_SELinux(JNIEnv* env);
158 extern int register_android_os_storage_StorageManager(JNIEnv* env);
159 extern int register_android_os_SystemProperties(JNIEnv *env);
160 extern int register_android_os_SystemClock(JNIEnv* env);
161 extern int register_android_os_Trace(JNIEnv* env);
162 extern int register_android_os_FileObserver(JNIEnv *env);
163 extern int register_android_os_UEventObserver(JNIEnv* env);
164 extern int register_android_os_HidlMemory(JNIEnv* env);
165 extern int register_android_os_MemoryFile(JNIEnv* env);
166 extern int register_android_os_SharedMemory(JNIEnv* env);
167 extern int register_android_service_DataLoaderService(JNIEnv* env);
168 extern int register_android_os_incremental_IncrementalManager(JNIEnv* env);
169 extern int register_android_net_LocalSocketImpl(JNIEnv* env);
170 extern int register_android_text_AndroidCharacter(JNIEnv *env);
171 extern int register_android_text_Hyphenator(JNIEnv *env);
172 extern int register_android_opengl_classes(JNIEnv *env);
173 extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
174 extern int register_android_backup_BackupDataInput(JNIEnv *env);
175 extern int register_android_backup_BackupDataOutput(JNIEnv *env);
176 extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
177 extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
178 extern int register_android_app_backup_FullBackup(JNIEnv *env);
179 extern int register_android_app_Activity(JNIEnv *env);
180 extern int register_android_app_ActivityThread(JNIEnv *env);
181 extern int register_android_app_NativeActivity(JNIEnv *env);
182 extern int register_android_app_PropertyInvalidatedCache(JNIEnv* env);
183 extern int register_android_media_RemoteDisplay(JNIEnv *env);
184 extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
185 extern int register_android_view_InputChannel(JNIEnv* env);
186 extern int register_android_view_InputDevice(JNIEnv* env);
187 extern int register_android_view_InputEventReceiver(JNIEnv* env);
188 extern int register_android_view_InputEventSender(JNIEnv* env);
189 extern int register_android_view_InputQueue(JNIEnv* env);
190 extern int register_android_view_KeyCharacterMap(JNIEnv *env);
191 extern int register_android_view_KeyEvent(JNIEnv* env);
192 extern int register_android_view_MotionEvent(JNIEnv* env);
193 extern int register_android_view_MotionPredictor(JNIEnv* env);
194 extern int register_android_view_PointerIcon(JNIEnv* env);
195 extern int register_android_view_VelocityTracker(JNIEnv* env);
196 extern int register_android_view_VerifiedKeyEvent(JNIEnv* env);
197 extern int register_android_view_VerifiedMotionEvent(JNIEnv* env);
198 extern int register_android_content_res_ObbScanner(JNIEnv* env);
199 extern int register_android_content_res_Configuration(JNIEnv* env);
200 extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
201 extern int register_android_security_Scrypt(JNIEnv *env);
202 extern int register_com_android_internal_content_F2fsUtils(JNIEnv* env);
203 extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
204 extern int register_com_android_internal_content_om_OverlayConfig(JNIEnv *env);
205 extern int register_com_android_internal_content_om_OverlayManagerImpl(JNIEnv* env);
206 extern int register_com_android_internal_net_NetworkUtilsInternal(JNIEnv* env);
207 extern int register_com_android_internal_os_ApplicationSharedMemory(JNIEnv *env);
208 extern int register_com_android_internal_os_ClassLoaderFactory(JNIEnv* env);
209 extern int register_com_android_internal_os_DebugStore(JNIEnv* env);
210 extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env);
211 extern int register_com_android_internal_os_KernelAllocationStats(JNIEnv* env);
212 extern int register_com_android_internal_os_KernelCpuBpfTracking(JNIEnv* env);
213 extern int register_com_android_internal_os_KernelCpuTotalBpfMapReader(JNIEnv* env);
214 extern int register_com_android_internal_os_KernelCpuUidBpfMapReader(JNIEnv *env);
215 extern int register_com_android_internal_os_KernelSingleProcessCpuThreadReader(JNIEnv* env);
216 extern int register_com_android_internal_os_KernelSingleUidTimeReader(JNIEnv *env);
217 extern int register_com_android_internal_os_LongArrayMultiStateCounter(JNIEnv* env);
218 extern int register_com_android_internal_os_LongMultiStateCounter(JNIEnv* env);
219 extern int register_com_android_internal_os_Zygote(JNIEnv *env);
220 extern int register_com_android_internal_os_ZygoteCommandBuffer(JNIEnv *env);
221 extern int register_com_android_internal_os_ZygoteInit(JNIEnv *env);
222 extern int register_com_android_internal_security_VerityUtils(JNIEnv* env);
223 extern int register_com_android_internal_util_ArrayUtils(JNIEnv* env);
224 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
225 extern int register_android_window_WindowInfosListener(JNIEnv* env);
226 extern int register_android_window_ScreenCapture(JNIEnv* env);
227 extern int register_jni_common(JNIEnv* env);
228 extern int register_android_tracing_PerfettoDataSource(JNIEnv* env);
229 extern int register_android_tracing_PerfettoDataSourceInstance(JNIEnv* env);
230 extern int register_android_tracing_PerfettoProducer(JNIEnv* env);
231 extern int register_android_window_InputTransferToken(JNIEnv* env);
232 extern int register_android_view_WindowManagerGlobal(JNIEnv* env);
233 
234 // Namespace for Android Runtime flags applied during boot time.
235 static const char* RUNTIME_NATIVE_BOOT_NAMESPACE = "runtime_native_boot";
236 // Feature flag name to enable/disable generational garbage collection in ART's
237 // Concurrent Copying (CC) garbage collector.
238 static const char* ENABLE_GENERATIONAL_CC = "enable_generational_cc";
239 // Runtime option enabling generational garbage collection in ART's Concurrent
240 // Copying (CC) garbage collector.
241 static const char* kGenerationalCCRuntimeOption = "-Xgc:generational_cc";
242 // Runtime option disabling generational garbage collection in ART's Concurrent
243 // Copying (CC) garbage collector.
244 static const char* kNoGenerationalCCRuntimeOption = "-Xgc:nogenerational_cc";
245 
246 // Phenotype property name for enabling profiling the boot class path.
247 static const char* PROFILE_BOOT_CLASS_PATH = "profilebootclasspath";
248 
249 // Feature flag name for running the JIT in Zygote experiment, b/119800099.
250 // TODO: Rename the server-level flag or remove.
251 static const char* ENABLE_JITZYGOTE_IMAGE = "enable_apex_image";
252 // Flag to pass to the runtime when using the JIT Zygote image.
253 static const char* kJitZygoteImageOption = "-Xforcejitzygote";
254 
255 // Feature flag name for disabling lock profiling.
256 static const char* DISABLE_LOCK_PROFILING = "disable_lock_profiling";
257 // Runtime option disabling lock profiling.
258 static const char* kLockProfThresholdRuntimeOption = "-Xlockprofthreshold:0";
259 
260 static AndroidRuntime* gCurRuntime = NULL;
261 
262 /*
263  * Code written in the Java Programming Language calls here from main().
264  */
com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv * env,jobject clazz)265 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
266 {
267     gCurRuntime->onStarted();
268 }
269 
com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv * env,jobject clazz)270 static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
271 {
272     gCurRuntime->onZygoteInit();
273 }
274 
com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv * env,jobject clazz,jboolean exitWithoutCleanup)275 static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
276         jobject clazz, jboolean exitWithoutCleanup)
277 {
278     gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
279 }
280 
281 /*
282  * JNI registration.
283  */
284 
register_com_android_internal_os_RuntimeInit(JNIEnv * env)285 int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
286 {
287     const JNINativeMethod methods[] = {
288             {"nativeFinishInit", "()V",
289              (void*)com_android_internal_os_RuntimeInit_nativeFinishInit},
290             {"nativeSetExitWithoutCleanup", "(Z)V",
291              (void*)com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup},
292     };
293     return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
294         methods, NELEM(methods));
295 }
296 
register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv * env)297 int register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env)
298 {
299     const JNINativeMethod methods[] = {
300         { "nativeZygoteInit", "()V",
301             (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit },
302     };
303     return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit",
304         methods, NELEM(methods));
305 }
306 
307 // ----------------------------------------------------------------------
308 
309 /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
310 
AndroidRuntime(char * argBlockStart,const size_t argBlockLength)311 AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
312         mExitWithoutCleanup(false),
313         mArgBlockStart(argBlockStart),
314         mArgBlockLength(argBlockLength)
315 {
316     init_android_graphics();
317 
318     // Pre-allocate enough space to hold a fair number of options.
319     mOptions.setCapacity(20);
320 
321     assert(gCurRuntime == NULL);        // one per process
322     gCurRuntime = this;
323 }
324 
~AndroidRuntime()325 AndroidRuntime::~AndroidRuntime()
326 {
327 }
328 
329 /*
330  * Register native methods using JNI.
331  */
registerNativeMethods(JNIEnv * env,const char * className,const JNINativeMethod * gMethods,int numMethods)332 /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
333     const char* className, const JNINativeMethod* gMethods, int numMethods)
334 {
335     return jniRegisterNativeMethods(env, className, gMethods, numMethods);
336 }
337 
setArgv0(const char * argv0,bool setProcName)338 void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
339     // Set the kernel's task name, for as much of the name as we can fit.
340     // The kernel's TASK_COMM_LEN minus one for the terminating NUL == 15.
341     if (setProcName) {
342         int len = strlen(argv0);
343         if (len < 15) {
344             pthread_setname_np(pthread_self(), argv0);
345         } else {
346             pthread_setname_np(pthread_self(), argv0 + len - 15);
347         }
348     }
349 
350     // Directly change the memory pointed to by argv[0].
351     memset(mArgBlockStart, 0, mArgBlockLength);
352     strlcpy(mArgBlockStart, argv0, mArgBlockLength);
353 
354     // Let bionic know that we just did that, because __progname points
355     // into argv[0] (https://issuetracker.google.com/152893281).
356     setprogname(mArgBlockStart);
357 }
358 
callMain(const String8 & className,jclass clazz,const Vector<String8> & args)359 status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
360     const Vector<String8>& args)
361 {
362     JNIEnv* env;
363     jmethodID methodId;
364 
365     ALOGD("Calling main entry %s", className.c_str());
366 
367     env = getJNIEnv();
368     if (clazz == NULL || env == NULL) {
369         return UNKNOWN_ERROR;
370     }
371 
372     methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
373     if (methodId == NULL) {
374         ALOGE("ERROR: could not find method %s.main(String[])\n", className.c_str());
375         return UNKNOWN_ERROR;
376     }
377 
378     /*
379      * We want to call main() with a String array with our arguments in it.
380      * Create an array and populate it.
381      */
382     jclass stringClass;
383     jobjectArray strArray;
384 
385     const size_t numArgs = args.size();
386     stringClass = env->FindClass("java/lang/String");
387     strArray = env->NewObjectArray(numArgs, stringClass, NULL);
388 
389     for (size_t i = 0; i < numArgs; i++) {
390         jstring argStr = env->NewStringUTF(args[i].c_str());
391         env->SetObjectArrayElement(strArray, i, argStr);
392     }
393 
394     env->CallStaticVoidMethod(clazz, methodId, strArray);
395     return NO_ERROR;
396 }
397 
398 /*
399  * The VM calls this through the "exit" hook.
400  */
runtime_exit(int code)401 static void runtime_exit(int code)
402 {
403     gCurRuntime->exit(code);
404 }
405 
406 /*
407  * The VM calls this through the "vfprintf" hook.
408  *
409  * We ignore "fp" and just write the results to the log file.
410  */
runtime_vfprintf(FILE * fp,const char * format,va_list ap)411 static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
412 {
413     LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
414 }
415 
416 /**
417  * The VM calls this when mutex contention debugging is enabled to
418  * determine whether or not the blocked thread was a "sensitive thread"
419  * for user responsiveness/smoothess.
420  *
421  * Our policy for this is whether or not we're tracing any StrictMode
422  * events on this thread (which we might've inherited via Binder calls
423  * into us)
424  */
runtime_isSensitiveThread()425 static bool runtime_isSensitiveThread() {
426     IPCThreadState* state = IPCThreadState::selfOrNull();
427     return state && state->getStrictModePolicy() != 0;
428 }
429 
hasDir(const char * dir)430 static int hasDir(const char* dir)
431 {
432     struct stat s;
433     int res = stat(dir, &s);
434     if (res == 0) {
435         return S_ISDIR(s.st_mode);
436     }
437     return 0;
438 }
439 
hasFile(const char * file)440 static bool hasFile(const char* file) {
441     struct stat s;
442     int res = stat(file, &s);
443     if (res == 0) {
444         return S_ISREG(s.st_mode);
445     }
446     return false;
447 }
448 
449 /*
450  * Read the persistent locale. Inspects the following system properties
451  * (in order) and returns the first non-empty property in the list :
452  *
453  * (1) persist.sys.locale
454  * (2) persist.sys.language/country/localevar (country and localevar are
455  * inspected iff. language is non-empty.
456  * (3) ro.product.locale
457  * (4) ro.product.locale.language/region
458  *
459  * Note that we need to inspect persist.sys.language/country/localevar to
460  * preserve language settings for devices that are upgrading from Lollipop
461  * to M. The same goes for ro.product.locale.language/region as well.
462  */
readLocale()463 const std::string readLocale()
464 {
465     const std::string locale = GetProperty("persist.sys.locale", "");
466     if (!locale.empty()) {
467         return locale;
468     }
469 
470     const std::string language = GetProperty("persist.sys.language", "");
471     if (!language.empty()) {
472         const std::string country = GetProperty("persist.sys.country", "");
473         const std::string variant = GetProperty("persist.sys.localevar", "");
474 
475         std::string out = language;
476         if (!country.empty()) {
477             out = out + "-" + country;
478         }
479 
480         if (!variant.empty()) {
481             out = out + "-" + variant;
482         }
483 
484         return out;
485     }
486 
487     const std::string productLocale = GetProperty("ro.product.locale", "");
488     if (!productLocale.empty()) {
489         return productLocale;
490     }
491 
492     // If persist.sys.locale and ro.product.locale are missing,
493     // construct a locale value from the individual locale components.
494     const std::string productLanguage = GetProperty("ro.product.locale.language", "en");
495     const std::string productRegion = GetProperty("ro.product.locale.region", "US");
496 
497     return productLanguage + "-" + productRegion;
498 }
499 
addOption(const char * optionString,void * extraInfo)500 void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
501 {
502     JavaVMOption opt;
503     opt.optionString = optionString;
504     opt.extraInfo = extraInfo;
505     mOptions.add(opt);
506 }
507 
508 /*
509  * Parse a property containing space-separated options that should be
510  * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
511  *
512  * This will cut up "extraOptsBuf" as we chop it into individual options.
513  *
514  * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
515  *
516  * Adds the strings, if any, to mOptions.
517  */
parseExtraOpts(char * extraOptsBuf,const char * quotingArg)518 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
519 {
520     char* start = extraOptsBuf;
521     char* end = NULL;
522     while (*start != '\0') {
523         while (*start == ' ')                   /* skip leading whitespace */
524             start++;
525         if (*start == '\0')                     /* was trailing ws, bail */
526             break;
527 
528         end = start+1;
529         while (*end != ' ' && *end != '\0')     /* find end of token */
530             end++;
531         if (*end == ' ')
532             *end++ = '\0';          /* mark end, advance to indicate more */
533 
534         if (quotingArg != NULL) {
535             addOption(quotingArg);
536         }
537         addOption(start);
538         start = end;
539     }
540 }
541 
542 /*
543  * Reads a "property" into "buffer" with a default of "defaultArg". If
544  * the property is non-empty, it is treated as a runtime option such
545  * as "-Xmx32m".
546  *
547  * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
548  *
549  * If an argument is found, it is added to mOptions.
550  *
551  * If an option is found, it is added to mOptions and true is
552  * returned. Otherwise false is returned.
553  */
parseRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * defaultArg)554 bool AndroidRuntime::parseRuntimeOption(const char* property,
555                                         char* buffer,
556                                         const char* runtimeArg,
557                                         const char* defaultArg)
558 {
559     strcpy(buffer, runtimeArg);
560     size_t runtimeArgLen = strlen(runtimeArg);
561     property_get(property, buffer+runtimeArgLen, defaultArg);
562     if (buffer[runtimeArgLen] == '\0') {
563         return false;
564     }
565     addOption(buffer);
566     return true;
567 }
568 
569 /*
570  * Reads a "property" into "buffer". If the property is non-empty, it
571  * is treated as a dex2oat compiler option that should be
572  * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified".
573  *
574  * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
575  *
576  * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
577  *
578  * If an option is found, it is added to mOptions and true is
579  * returned. Otherwise false is returned.
580  */
parseCompilerOption(const char * property,char * buffer,const char * compilerArg,const char * quotingArg)581 bool AndroidRuntime::parseCompilerOption(const char* property,
582                                          char* buffer,
583                                          const char* compilerArg,
584                                          const char* quotingArg)
585 {
586     strcpy(buffer, compilerArg);
587     size_t compilerArgLen = strlen(compilerArg);
588     property_get(property, buffer+compilerArgLen, "");
589     if (buffer[compilerArgLen] == '\0') {
590         return false;
591     }
592     addOption(quotingArg);
593     addOption(buffer);
594     return true;
595 }
596 
597 /*
598  * Reads a "property" into "buffer". If the property is non-empty, it
599  * is treated as a dex2oat compiler runtime option that should be
600  * passed as a quoted option, e.g. "-Ximage-compiler-option
601  * --runtime-arg -Ximage-compiler-option -Xmx32m".
602  *
603  * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
604  *
605  * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
606  *
607  * If an option is found, it is added to mOptions and true is
608  * returned. Otherwise false is returned.
609  */
parseCompilerRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * quotingArg)610 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
611                                                 char* buffer,
612                                                 const char* runtimeArg,
613                                                 const char* quotingArg)
614 {
615     strcpy(buffer, runtimeArg);
616     size_t runtimeArgLen = strlen(runtimeArg);
617     property_get(property, buffer+runtimeArgLen, "");
618     if (buffer[runtimeArgLen] == '\0') {
619         return false;
620     }
621     addOption(quotingArg);
622     addOption("--runtime-arg");
623     addOption(quotingArg);
624     addOption(buffer);
625     return true;
626 }
627 
628 /*
629  * Start the Dalvik Virtual Machine.
630  *
631  * Various arguments, most determined by system properties, are passed in.
632  * The "mOptions" vector is updated.
633  *
634  * CAUTION: when adding options in here, be careful not to put the
635  * char buffer inside a nested scope.  Adding the buffer to the
636  * options using mOptions.add() does not copy the buffer, so if the
637  * buffer goes out of scope the option may be overwritten.  It's best
638  * to put the buffer at the top of the function so that it is more
639  * unlikely that someone will surround it in a scope at a later time
640  * and thus introduce a bug.
641  *
642  * Returns 0 on success.
643  */
startVm(JavaVM ** pJavaVM,JNIEnv ** pEnv,bool zygote,bool primary_zygote)644 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote, bool primary_zygote)
645 {
646     JavaVMInitArgs initArgs;
647     char propBuf[PROPERTY_VALUE_MAX];
648     char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
649     char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
650     char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
651     char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
652     char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
653     char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
654     char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
655     char jitpthreadpriorityOptsBuf[sizeof("-Xjitpthreadpriority:")-1 + PROPERTY_VALUE_MAX];
656     char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
657     char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
658     char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
659     char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
660     char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
661     char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX];
662     char saveResolvedClassesDelayMsOptsBuf[
663             sizeof("-Xps-save-resolved-classes-delay-ms:")-1 + PROPERTY_VALUE_MAX];
664     char profileMinSavePeriodOptsBuf[sizeof("-Xps-min-save-period-ms:")-1 + PROPERTY_VALUE_MAX];
665     char profileMinFirstSaveOptsBuf[sizeof("-Xps-min-first-save-ms:") - 1 + PROPERTY_VALUE_MAX];
666     char profileInlineCacheThresholdOptsBuf[
667             sizeof("-Xps-inline-cache-threshold:") - 1 + PROPERTY_VALUE_MAX];
668     char madviseWillNeedFileSizeVdex[
669             sizeof("-XMadviseWillNeedVdexFileSize:")-1 + PROPERTY_VALUE_MAX];
670     char madviseWillNeedFileSizeOdex[
671             sizeof("-XMadviseWillNeedOdexFileSize:")-1 + PROPERTY_VALUE_MAX];
672     char madviseWillNeedFileSizeArt[
673             sizeof("-XMadviseWillNeedArtFileSize:")-1 + PROPERTY_VALUE_MAX];
674     char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
675     char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
676     char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
677     char foregroundHeapGrowthMultiplierOptsBuf[
678             sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX];
679     char finalizerTimeoutMsOptsBuf[sizeof("-XX:FinalizerTimeoutMs=")-1 + PROPERTY_VALUE_MAX];
680     char threadSuspendTimeoutOptsBuf[sizeof("-XX:ThreadSuspendTimeout=")-1 + PROPERTY_VALUE_MAX];
681     char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
682     char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
683     char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
684     char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
685     char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
686     char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
687     char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
688     char dex2oatCpuSetBuf[sizeof("--cpu-set=")-1 + PROPERTY_VALUE_MAX];
689     char dex2oatCpuSetImageBuf[sizeof("--cpu-set=")-1 + PROPERTY_VALUE_MAX];
690     char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
691     char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
692     char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
693     char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
694     char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
695     char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
696     char extraOptsBuf[PROPERTY_VALUE_MAX];
697     char perfettoHprofOptBuf[sizeof("-XX:PerfettoHprof=") + PROPERTY_VALUE_MAX];
698     char perfettoJavaHeapStackOptBuf[
699             sizeof("-XX:PerfettoJavaHeapStackProf=") + PROPERTY_VALUE_MAX];
700     enum {
701       kEMDefault,
702       kEMIntPortable,
703       kEMIntFast,
704       kEMJitCompiler,
705     } executionMode = kEMDefault;
706     char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
707     char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
708     char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
709     char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
710     char corePlatformApiPolicyBuf[sizeof("-Xcore-platform-api-policy:") + PROPERTY_VALUE_MAX];
711     char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
712     char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
713     std::string fingerprintBuf;
714     char javaZygoteForkLoopBuf[sizeof("-XX:ForceJavaZygoteForkLoop=") + PROPERTY_VALUE_MAX];
715     char jdwpProviderBuf[sizeof("-XjdwpProvider:") - 1 + PROPERTY_VALUE_MAX];
716     char opaqueJniIds[sizeof("-Xopaque-jni-ids:") - 1 + PROPERTY_VALUE_MAX];
717     char bootImageBuf[sizeof("-Ximage:") - 1 + PROPERTY_VALUE_MAX];
718 
719     // Read if we are using the profile configuration, do this at the start since the last ART args
720     // take precedence.
721     std::string profile_boot_class_path_flag =
722             server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
723                                                                  PROFILE_BOOT_CLASS_PATH,
724                                                                  /*default_value=*/"");
725     bool profile_boot_class_path;
726     switch (ParseBool(profile_boot_class_path_flag)) {
727         case ParseBoolResult::kError:
728             // Default to the system property.
729             profile_boot_class_path =
730                     GetBoolProperty("dalvik.vm.profilebootclasspath", /*default_value=*/false);
731             break;
732         case ParseBoolResult::kTrue:
733             profile_boot_class_path = true;
734             break;
735         case ParseBoolResult::kFalse:
736             profile_boot_class_path = false;
737             break;
738     }
739     if (profile_boot_class_path) {
740         addOption("-Xcompiler-option");
741         addOption("--count-hotness-in-compiled-code");
742         addOption("-Xps-profile-boot-class-path");
743         addOption("-Xps-profile-aot-code");
744         addOption("-Xjitsaveprofilinginfo");
745     }
746 
747     std::string use_jitzygote_image_flag =
748             server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
749                                                                  ENABLE_JITZYGOTE_IMAGE,
750                                                                  /*default_value=*/"");
751     // Use the APEX boot image for boot class path profiling to get JIT samples on BCP methods.
752     // Also use the APEX boot image if it's explicitly enabled via configuration flag.
753     const bool use_apex_image = profile_boot_class_path || (use_jitzygote_image_flag == "true");
754     if (use_apex_image) {
755         ALOGI("Using JIT Zygote image: '%s'\n", kJitZygoteImageOption);
756         addOption(kJitZygoteImageOption);
757     } else if (parseRuntimeOption("dalvik.vm.boot-image", bootImageBuf, "-Ximage:")) {
758         ALOGI("Using dalvik.vm.boot-image: '%s'\n", bootImageBuf);
759     } else {
760         ALOGI("Using default boot image");
761     }
762 
763     std::string disable_lock_profiling =
764         server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
765                                                              DISABLE_LOCK_PROFILING,
766                                                              /*default_value=*/ "");
767     if (disable_lock_profiling == "true") {
768         addOption(kLockProfThresholdRuntimeOption);
769         ALOGI("Disabling lock profiling: '%s'\n", kLockProfThresholdRuntimeOption);
770     } else {
771         ALOGI("Leaving lock profiling enabled");
772     }
773 
774     const bool checkJni = GetBoolProperty("dalvik.vm.checkjni", false);
775     if (checkJni) {
776         ALOGD("CheckJNI is ON");
777 
778         /* extended JNI checking */
779         addOption("-Xcheck:jni");
780 
781         /* with -Xcheck:jni, this provides a JNI function call trace */
782         //addOption("-verbose:jni");
783     }
784 
785     const bool odsignVerificationSuccess = GetBoolProperty("odsign.verification.success", false);
786     if (!odsignVerificationSuccess) {
787         addOption("-Xdeny-art-apex-data-files");
788     }
789 
790     property_get("dalvik.vm.execution-mode", propBuf, "");
791     if (strcmp(propBuf, "int:portable") == 0) {
792         executionMode = kEMIntPortable;
793     } else if (strcmp(propBuf, "int:fast") == 0) {
794         executionMode = kEMIntFast;
795     } else if (strcmp(propBuf, "int:jit") == 0) {
796         executionMode = kEMJitCompiler;
797     }
798 
799     strcpy(jniOptsBuf, "-Xjniopts:");
800     if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
801         ALOGI("JNI options: '%s'\n", jniOptsBuf);
802     }
803 
804     /* route exit() to our handler */
805     addOption("exit", (void*) runtime_exit);
806 
807     /* route fprintf() to our handler */
808     addOption("vfprintf", (void*) runtime_vfprintf);
809 
810     /* register the framework-specific "is sensitive thread" hook */
811     addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
812 
813     /* enable verbose; standard options are { jni, gc, class } */
814     //addOption("-verbose:jni");
815     addOption("-verbose:gc");
816     //addOption("-verbose:class");
817 
818     // On Android, we always want to allow loading the PerfettoHprof plugin.
819     // Even with this option set, we will still only actually load the plugin
820     // if we are on a userdebug build or the app is debuggable or profileable.
821     // This is enforced in art/runtime/runtime.cc.
822     //
823     // We want to be able to disable this, because this does not work on host,
824     // and we do not want to enable it in tests.
825     parseRuntimeOption("dalvik.vm.perfetto_hprof", perfettoHprofOptBuf, "-XX:PerfettoHprof=",
826                        "true");
827 
828     // Enable PerfettoJavaHeapStackProf in the zygote
829     parseRuntimeOption("dalvik.vm.perfetto_javaheap", perfettoJavaHeapStackOptBuf,
830                        "-XX:PerfettoJavaHeapStackProf=", "true");
831 
832     if (primary_zygote) {
833         addOption("-Xprimaryzygote");
834     }
835 
836     /*
837      * The default starting and maximum size of the heap.  Larger
838      * values should be specified in a product property override.
839      */
840     parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
841     parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
842 
843     parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
844     parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
845     parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
846     parseRuntimeOption("dalvik.vm.heaptargetutilization",
847                        heaptargetutilizationOptsBuf,
848                        "-XX:HeapTargetUtilization=");
849 
850     /* Foreground heap growth multiplier option */
851     parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier",
852                        foregroundHeapGrowthMultiplierOptsBuf,
853                        "-XX:ForegroundHeapGrowthMultiplier=");
854     /*
855      * Finalizer and thread suspend timeouts.
856      */
857     parseRuntimeOption("dalvik.vm.finalizer-timeout-ms",
858                        finalizerTimeoutMsOptsBuf,
859                        "-XX:FinalizerTimeoutMs=");
860     parseRuntimeOption("dalvik.vm.thread-suspend-timeout-ms",
861                        threadSuspendTimeoutOptsBuf,
862                        "-XX:ThreadSuspendTimeout=");
863     /*
864      * JIT related options.
865      */
866     parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
867     parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
868     parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
869     parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
870     parseRuntimeOption("dalvik.vm.jitpthreadpriority",
871                        jitpthreadpriorityOptsBuf,
872                        "-Xjitpthreadpriority:");
873     addOption("-Xjitsaveprofilinginfo");
874 
875     parseRuntimeOption("dalvik.vm.jitprithreadweight",
876                        jitprithreadweightOptBuf,
877                        "-Xjitprithreadweight:");
878 
879     parseRuntimeOption("dalvik.vm.jittransitionweight", jittransitionweightOptBuf,
880                        "-Xjittransitionweight:");
881 
882     /*
883      * Use default platform configuration as limits for madvising,
884      * when no properties are specified.
885      */
886     parseRuntimeOption("dalvik.vm.madvise.vdexfile.size",
887                        madviseWillNeedFileSizeVdex,
888                        "-XMadviseWillNeedVdexFileSize:");
889 
890     parseRuntimeOption("dalvik.vm.madvise.odexfile.size",
891                        madviseWillNeedFileSizeOdex,
892                        "-XMadviseWillNeedOdexFileSize:");
893 
894     parseRuntimeOption("dalvik.vm.madvise.artfile.size",
895                        madviseWillNeedFileSizeArt,
896                        "-XMadviseWillNeedArtFileSize:");
897 
898     /*
899      * Profile related options.
900      */
901     parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf,
902             "-Xps-hot-startup-method-samples:");
903 
904     parseRuntimeOption("dalvik.vm.ps-resolved-classes-delay-ms", saveResolvedClassesDelayMsOptsBuf,
905             "-Xps-save-resolved-classes-delay-ms:");
906 
907     parseRuntimeOption("dalvik.vm.ps-min-save-period-ms", profileMinSavePeriodOptsBuf,
908             "-Xps-min-save-period-ms:");
909 
910     parseRuntimeOption("dalvik.vm.ps-min-first-save-ms", profileMinFirstSaveOptsBuf,
911             "-Xps-min-first-save-ms:");
912 
913     parseRuntimeOption("dalvik.vm.ps-inline-cache-threshold", profileInlineCacheThresholdOptsBuf,
914             "-Xps-inline-cache-threshold:");
915 
916     property_get("ro.config.low_ram", propBuf, "");
917     if (strcmp(propBuf, "true") == 0) {
918       addOption("-XX:LowMemoryMode");
919     }
920 
921     /*
922      * Garbage-collection related options.
923      */
924     parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
925 
926     // If it set, honor the "enable_generational_cc" device configuration;
927     // otherwise, let the runtime use its default behavior.
928     std::string enable_generational_cc =
929         server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
930                                                              ENABLE_GENERATIONAL_CC,
931                                                              /*default_value=*/ "");
932     if (enable_generational_cc == "true") {
933         addOption(kGenerationalCCRuntimeOption);
934     } else if (enable_generational_cc == "false") {
935         addOption(kNoGenerationalCCRuntimeOption);
936     }
937 
938     parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
939 
940     /*
941      * Enable/disable zygote native fork loop.
942      */
943     parseRuntimeOption("dalvik.vm.force-java-zygote-fork-loop",
944                        javaZygoteForkLoopBuf,
945                        "-XX:ForceJavaZygoteForkLoop=");
946 
947     /*
948      * Enable debugging only for apps forked from zygote.
949      */
950     if (zygote) {
951       // Set the JDWP provider and required arguments. By default let the runtime choose how JDWP is
952       // implemented. When this is not set the runtime defaults to not allowing JDWP.
953       addOption("-XjdwpOptions:suspend=n,server=y");
954       parseRuntimeOption("dalvik.vm.jdwp-provider",
955                          jdwpProviderBuf,
956                          "-XjdwpProvider:",
957                          "default");
958     }
959 
960     // Only pass an explicit opaque-jni-ids to apps forked from zygote
961     if (zygote) {
962       parseRuntimeOption("dalvik.vm.opaque-jni-ids",
963                         opaqueJniIds,
964                         "-Xopaque-jni-ids:",
965                         "swapable");
966     }
967 
968     parseRuntimeOption("dalvik.vm.lockprof.threshold",
969                        lockProfThresholdBuf,
970                        "-Xlockprofthreshold:");
971 
972     if (executionMode == kEMIntPortable) {
973         addOption("-Xint:portable");
974     } else if (executionMode == kEMIntFast) {
975         addOption("-Xint:fast");
976     } else if (executionMode == kEMJitCompiler) {
977         addOption("-Xint:jit");
978     }
979 
980     // Extra options for JIT.
981     parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
982                         "--compiler-filter=", "-Xcompiler-option");
983     parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
984     parseCompilerOption("dalvik.vm.dex2oat-cpu-set", dex2oatCpuSetBuf, "--cpu-set=",
985                         "-Xcompiler-option");
986 
987     // Copy the variant.
988     sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", ABI_STRING);
989     parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
990                         "--instruction-set-variant=", "-Xcompiler-option");
991     // Copy the features.
992     sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", ABI_STRING);
993     parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
994                         "--instruction-set-features=", "-Xcompiler-option");
995 
996     /*
997      * When running with debug.generate-debug-info, add --generate-debug-info to the compiler
998      * options so that both JITted code and the boot image, if it is compiled on device, will
999      * include native debugging information.
1000      */
1001     property_get("debug.generate-debug-info", propBuf, "");
1002     bool generate_debug_info = (strcmp(propBuf, "true") == 0);
1003     if (generate_debug_info) {
1004         addOption("-Xcompiler-option");
1005         addOption("--generate-debug-info");
1006     }
1007 
1008     // The mini-debug-info makes it possible to backtrace through compiled code.
1009     bool generate_mini_debug_info = property_get_bool("dalvik.vm.minidebuginfo", 0);
1010     if (generate_mini_debug_info) {
1011         addOption("-Xcompiler-option");
1012         addOption("--generate-mini-debug-info");
1013     }
1014 
1015     property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
1016     parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
1017 
1018     /* extra options; parse this late so it overrides others */
1019     property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
1020     parseExtraOpts(extraOptsBuf, NULL);
1021 
1022     // Extra options for boot image generation.
1023     parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
1024                                "-Xms", "-Ximage-compiler-option");
1025     parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
1026                                "-Xmx", "-Ximage-compiler-option");
1027 
1028     parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
1029                         "--compiler-filter=", "-Ximage-compiler-option");
1030 
1031     // If there are dirty-image-objects files, push them.
1032     const char* dirty_image_objects_options[] = {
1033             "--dirty-image-objects=/apex/com.android.art/etc/dirty-image-objects",
1034             "--dirty-image-objects=/system/etc/dirty-image-objects",
1035     };
1036     for (const char* option : dirty_image_objects_options) {
1037         // Get the file path by finding the first '/' and check if
1038         // this file exists.
1039         if (hasFile(strchr(option, '/'))) {
1040             addOption("-Ximage-compiler-option");
1041             addOption(option);
1042         }
1043     }
1044 
1045     parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
1046                         "-Ximage-compiler-option");
1047     parseCompilerOption("dalvik.vm.image-dex2oat-cpu-set", dex2oatCpuSetImageBuf, "--cpu-set=",
1048                         "-Ximage-compiler-option");
1049 
1050     // The runtime may compile a boot image, when necessary, not using installd. Thus, we need
1051     // to pass the instruction-set-features/variant as an image-compiler-option.
1052     // Note: it is OK to reuse the buffer, as the values are exactly the same between
1053     //       * compiler-option, used for runtime compilation (DexClassLoader)
1054     //       * image-compiler-option, used for boot-image compilation on device
1055     parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
1056                         "--instruction-set-variant=", "-Ximage-compiler-option");
1057     parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
1058                         "--instruction-set-features=", "-Ximage-compiler-option");
1059 
1060     if (generate_debug_info) {
1061         addOption("-Ximage-compiler-option");
1062         addOption("--generate-debug-info");
1063     }
1064 
1065     if (generate_mini_debug_info) {
1066         addOption("-Ximage-compiler-option");
1067         addOption("--generate-mini-debug-info");
1068     }
1069 
1070     property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
1071     parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
1072 
1073     /* Set the properties for locale */
1074     {
1075         strcpy(localeOption, "-Duser.locale=");
1076         const std::string locale = readLocale();
1077         strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
1078         addOption(localeOption);
1079     }
1080 
1081     // Trace files are stored in /data/misc/trace which is writable only in debug mode.
1082     property_get("ro.debuggable", propBuf, "0");
1083     if (strcmp(propBuf, "1") == 0) {
1084         property_get("dalvik.vm.method-trace", propBuf, "false");
1085         if (strcmp(propBuf, "true") == 0) {
1086             addOption("-Xmethod-trace");
1087             parseRuntimeOption("dalvik.vm.method-trace-file",
1088                                methodTraceFileBuf,
1089                                "-Xmethod-trace-file:");
1090             parseRuntimeOption("dalvik.vm.method-trace-file-siz",
1091                                methodTraceFileSizeBuf,
1092                                "-Xmethod-trace-file-size:");
1093             property_get("dalvik.vm.method-trace-stream", propBuf, "false");
1094             if (strcmp(propBuf, "true") == 0) {
1095                 addOption("-Xmethod-trace-stream");
1096             }
1097         }
1098     }
1099 
1100     // Native bridge library. "0" means that native bridge is disabled.
1101     //
1102     // Note: bridging is only enabled for the zygote. Other runs of
1103     //       app_process may not have the permissions to mount etc.
1104     property_get("ro.dalvik.vm.native.bridge", propBuf, "");
1105     if (propBuf[0] == '\0') {
1106         ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
1107     } else if (zygote && strcmp(propBuf, "0") != 0) {
1108         snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
1109                  "-XX:NativeBridge=%s", propBuf);
1110         addOption(nativeBridgeLibrary);
1111     }
1112 
1113 #if defined(__LP64__)
1114     const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
1115 #else
1116     const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
1117 #endif  // defined(__LP64__)
1118     property_get(cpu_abilist_property_name, propBuf, "");
1119     if (propBuf[0] == '\0') {
1120         ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
1121         return -1;
1122     }
1123     snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
1124     addOption(cpuAbiListBuf);
1125 
1126     // Dalvik-cache pruning counter.
1127     parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
1128                        "-Xzygote-max-boot-retry=");
1129 
1130     // If set, the property below can be used to enable core platform API violation reporting.
1131     property_get("persist.debug.dalvik.vm.core_platform_api_policy", propBuf, "");
1132     if (propBuf[0] != '\0') {
1133       snprintf(corePlatformApiPolicyBuf,
1134                sizeof(corePlatformApiPolicyBuf),
1135                "-Xcore-platform-api-policy:%s",
1136                propBuf);
1137       addOption(corePlatformApiPolicyBuf);
1138     }
1139 
1140     /*
1141      * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
1142      * contain the fingerprint and can be parsed.
1143      * Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot
1144      * be used here.
1145      * Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions.
1146      */
1147     std::string fingerprint = GetProperty("ro.build.fingerprint", "");
1148     if (!fingerprint.empty()) {
1149         fingerprintBuf = "-Xfingerprint:" + fingerprint;
1150         addOption(fingerprintBuf.c_str());
1151     }
1152 
1153     initArgs.version = JNI_VERSION_1_4;
1154     initArgs.options = mOptions.editArray();
1155     initArgs.nOptions = mOptions.size();
1156     initArgs.ignoreUnrecognized = JNI_FALSE;
1157 
1158     /*
1159      * Initialize the VM.
1160      *
1161      * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
1162      * If this call succeeds, the VM is ready, and we can start issuing
1163      * JNI calls.
1164      */
1165     if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
1166         ALOGE("JNI_CreateJavaVM failed\n");
1167         return -1;
1168     }
1169 
1170     return 0;
1171 }
1172 
toSlashClassName(const char * className)1173 char* AndroidRuntime::toSlashClassName(const char* className)
1174 {
1175     char* result = strdup(className);
1176     for (char* cp = result; *cp != '\0'; cp++) {
1177         if (*cp == '.') {
1178             *cp = '/';
1179         }
1180     }
1181     return result;
1182 }
1183 
1184 /** Create a Java string from an ASCII or Latin-1 string */
NewStringLatin1(JNIEnv * env,const char * bytes)1185 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
1186     if (!bytes) return NULL;
1187     int length = strlen(bytes);
1188     jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
1189     if (!buffer) return NULL;
1190     jchar* chp = buffer;
1191     for (int i = 0; i < length; i++) {
1192         *chp++ = *bytes++;
1193     }
1194     return env->NewString(buffer, length);
1195 }
1196 
1197 
1198 /*
1199  * Start the Android runtime.  This involves starting the virtual machine
1200  * and calling the "static void main(String[] args)" method in the class
1201  * named by "className".
1202  *
1203  * Passes the main function two arguments, the class name and the specified
1204  * options string.
1205  */
start(const char * className,const Vector<String8> & options,bool zygote)1206 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
1207 {
1208     ALOGD(">>>>>> START %s uid %d <<<<<<\n",
1209             className != NULL ? className : "(unknown)", getuid());
1210 
1211     static const String8 startSystemServer("start-system-server");
1212     // Whether this is the primary zygote, meaning the zygote which will fork system server.
1213     bool primary_zygote = false;
1214 
1215     /*
1216      * 'startSystemServer == true' means runtime is obsolete and not run from
1217      * init.rc anymore, so we print out the boot start event here.
1218      */
1219     for (size_t i = 0; i < options.size(); ++i) {
1220         if (options[i] == startSystemServer) {
1221             primary_zygote = true;
1222            /* track our progress through the boot sequence */
1223            const int LOG_BOOT_PROGRESS_START = 3000;
1224            LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
1225         }
1226     }
1227 
1228     const char* rootDir = getenv("ANDROID_ROOT");
1229     if (rootDir == NULL) {
1230         rootDir = "/system";
1231         if (!hasDir("/system")) {
1232             LOG_FATAL("No root directory specified, and /system does not exist.");
1233             return;
1234         }
1235         setenv("ANDROID_ROOT", rootDir, 1);
1236     }
1237 
1238     const char* artRootDir = getenv("ANDROID_ART_ROOT");
1239     if (artRootDir == NULL) {
1240         LOG_FATAL("No ART directory specified with ANDROID_ART_ROOT environment variable.");
1241         return;
1242     }
1243 
1244     const char* i18nRootDir = getenv("ANDROID_I18N_ROOT");
1245     if (i18nRootDir == NULL) {
1246         LOG_FATAL("No runtime directory specified with ANDROID_I18N_ROOT environment variable.");
1247         return;
1248     }
1249 
1250     const char* tzdataRootDir = getenv("ANDROID_TZDATA_ROOT");
1251     if (tzdataRootDir == NULL) {
1252         LOG_FATAL("No tz data directory specified with ANDROID_TZDATA_ROOT environment variable.");
1253         return;
1254     }
1255 
1256     //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1257     //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1258 
1259     /* start the virtual machine */
1260     JniInvocation jni_invocation;
1261     jni_invocation.Init(NULL);
1262     JNIEnv* env;
1263     if (startVm(&mJavaVM, &env, zygote, primary_zygote) != 0) {
1264         return;
1265     }
1266     onVmCreated(env);
1267 
1268     /*
1269      * Register android functions.
1270      */
1271     if (startReg(env) < 0) {
1272         ALOGE("Unable to register all android natives\n");
1273         return;
1274     }
1275 
1276     /*
1277      * We want to call main() with a String array with arguments in it.
1278      * At present we have two arguments, the class name and an option string.
1279      * Create an array to hold them.
1280      */
1281     jclass stringClass;
1282     jobjectArray strArray;
1283     jstring classNameStr;
1284 
1285     stringClass = env->FindClass("java/lang/String");
1286     assert(stringClass != NULL);
1287     strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1288     assert(strArray != NULL);
1289     classNameStr = env->NewStringUTF(className);
1290     assert(classNameStr != NULL);
1291     env->SetObjectArrayElement(strArray, 0, classNameStr);
1292 
1293     for (size_t i = 0; i < options.size(); ++i) {
1294         jstring optionsStr = env->NewStringUTF(options.itemAt(i).c_str());
1295         assert(optionsStr != NULL);
1296         env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1297     }
1298 
1299     /*
1300      * Start VM.  This thread becomes the main thread of the VM, and will
1301      * not return until the VM exits.
1302      */
1303     char* slashClassName = toSlashClassName(className != NULL ? className : "");
1304     jclass startClass = env->FindClass(slashClassName);
1305     if (startClass == NULL) {
1306         ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1307         /* keep going */
1308     } else {
1309         jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1310             "([Ljava/lang/String;)V");
1311         if (startMeth == NULL) {
1312             ALOGE("JavaVM unable to find main() in '%s'\n", className);
1313             /* keep going */
1314         } else {
1315             env->CallStaticVoidMethod(startClass, startMeth, strArray);
1316 
1317 #if 0
1318             if (env->ExceptionCheck())
1319                 threadExitUncaughtException(env);
1320 #endif
1321         }
1322     }
1323     free(slashClassName);
1324 
1325     ALOGD("Shutting down VM\n");
1326     if (mJavaVM->DetachCurrentThread() != JNI_OK)
1327         ALOGW("Warning: unable to detach main thread\n");
1328     if (mJavaVM->DestroyJavaVM() != 0)
1329         ALOGW("Warning: VM did not shut down cleanly\n");
1330 }
1331 
exit(int code)1332 void AndroidRuntime::exit(int code)
1333 {
1334     if (mExitWithoutCleanup) {
1335         ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1336     } else {
1337         ALOGI("VM exiting with result code %d.", code);
1338         onExit(code);
1339     }
1340 
1341 #ifdef __ANDROID_CLANG_COVERAGE__
1342     // When compiled with coverage, a function is registered with atexit to call
1343     // `__llvm_profile_write_file` when the process exit.
1344     // For Clang code coverage to work, call exit instead of _exit to run hooks
1345     // registered with atexit.
1346     ::exit(code);
1347 #else
1348     ::_exit(code);
1349 #endif
1350 }
1351 
onVmCreated(JNIEnv * env)1352 void AndroidRuntime::onVmCreated(JNIEnv* env)
1353 {
1354     // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1355 }
1356 
getJavaVM()1357 /*static*/ JavaVM* AndroidRuntime::getJavaVM() {
1358     return AndroidRuntime::mJavaVM;
1359 }
1360 
AndroidRuntimeGetJavaVM()1361 extern "C" JavaVM* AndroidRuntimeGetJavaVM() {
1362     return AndroidRuntime::getJavaVM();
1363 }
1364 
1365 /*
1366  * Get the JNIEnv pointer for this thread.
1367  *
1368  * Returns NULL if the slot wasn't allocated or populated.
1369  */
getJNIEnv()1370 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1371 {
1372     JNIEnv* env;
1373     JavaVM* vm = AndroidRuntime::getJavaVM();
1374     assert(vm != NULL);
1375 
1376     if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1377         return NULL;
1378     return env;
1379 }
1380 
1381 /*
1382  * Makes the current thread visible to the VM.
1383  *
1384  * The JNIEnv pointer returned is only valid for the current thread, and
1385  * thus must be tucked into thread-local storage.
1386  */
javaAttachThread(const char * threadName,JNIEnv ** pEnv)1387 static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1388 {
1389     JavaVMAttachArgs args;
1390     JavaVM* vm;
1391     jint result;
1392 
1393     vm = AndroidRuntime::getJavaVM();
1394     assert(vm != NULL);
1395 
1396     args.version = JNI_VERSION_1_4;
1397     args.name = (char*) threadName;
1398     args.group = NULL;
1399 
1400     result = vm->AttachCurrentThread(pEnv, (void*) &args);
1401     if (result != JNI_OK)
1402         ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1403 
1404     return result;
1405 }
1406 
1407 /*
1408  * Detach the current thread from the set visible to the VM.
1409  */
javaDetachThread(void)1410 static int javaDetachThread(void)
1411 {
1412     JavaVM* vm;
1413     jint result;
1414 
1415     vm = AndroidRuntime::getJavaVM();
1416     assert(vm != NULL);
1417 
1418     result = vm->DetachCurrentThread();
1419     if (result != JNI_OK)
1420         ALOGE("ERROR: thread detach failed\n");
1421     return result;
1422 }
1423 
1424 /*
1425  * When starting a native thread that will be visible from the VM, we
1426  * bounce through this to get the right attach/detach action.
1427  * Note that this function calls free(args)
1428  */
javaThreadShell(void * args)1429 /*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1430     void* start = ((void**)args)[0];
1431     void* userData = ((void **)args)[1];
1432     char* name = (char*) ((void **)args)[2];        // we own this storage
1433     free(args);
1434     JNIEnv* env;
1435     int result;
1436 
1437     /* hook us into the VM */
1438     if (javaAttachThread(name, &env) != JNI_OK)
1439         return -1;
1440 
1441     /* start the thread running */
1442     result = (*(android_thread_func_t)start)(userData);
1443 
1444     /* unhook us */
1445     javaDetachThread();
1446     free(name);
1447 
1448     return result;
1449 }
1450 
1451 /*
1452  * This is invoked from androidCreateThreadEtc() via the callback
1453  * set with androidSetCreateThreadFunc().
1454  *
1455  * We need to create the new thread in such a way that it gets hooked
1456  * into the VM before it really starts executing.
1457  */
javaCreateThreadEtc(android_thread_func_t entryFunction,void * userData,const char * threadName,int32_t threadPriority,size_t threadStackSize,android_thread_id_t * threadId)1458 /*static*/ int AndroidRuntime::javaCreateThreadEtc(
1459                                 android_thread_func_t entryFunction,
1460                                 void* userData,
1461                                 const char* threadName,
1462                                 int32_t threadPriority,
1463                                 size_t threadStackSize,
1464                                 android_thread_id_t* threadId)
1465 {
1466     void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1467     int result;
1468 
1469     LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1470 
1471     args[0] = (void*) entryFunction;
1472     args[1] = userData;
1473     args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1474 
1475     result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1476         threadName, threadPriority, threadStackSize, threadId);
1477     return result;
1478 }
1479 
1480 /*
1481  * Create a thread that is visible from the VM.
1482  *
1483  * This is called from elsewhere in the library.
1484  */
createJavaThread(const char * name,void (* start)(void *),void * arg)1485 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1486     void (*start)(void *), void* arg)
1487 {
1488     android_thread_id_t threadId = 0;
1489     javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1490         ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1491     return threadId;
1492 }
1493 
1494 #if 0
1495 static void quickTest(void* arg)
1496 {
1497     const char* str = (const char*) arg;
1498 
1499     printf("In quickTest: %s\n", str);
1500 }
1501 #endif
1502 
1503 #ifdef NDEBUG
1504     #define REG_JNI(name)      { name }
1505     struct RegJNIRec {
1506         int (*mProc)(JNIEnv*);
1507     };
1508 #else
1509     #define REG_JNI(name)      { name, #name }
1510     struct RegJNIRec {
1511         int (*mProc)(JNIEnv*);
1512         const char* mName;
1513     };
1514 #endif
1515 
1516 typedef void (*RegJAMProc)();
1517 
register_jni_procs(const RegJNIRec array[],size_t count,JNIEnv * env)1518 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1519 {
1520     for (size_t i = 0; i < count; i++) {
1521         if (array[i].mProc(env) < 0) {
1522 #ifndef NDEBUG
1523             ALOGD("----------!!! %s failed to load\n", array[i].mName);
1524 #endif
1525             return -1;
1526         }
1527     }
1528     return 0;
1529 }
1530 
1531 static const RegJNIRec gRegJNI[] = {
1532         REG_JNI(register_com_android_internal_os_ApplicationSharedMemory),
1533         REG_JNI(register_com_android_internal_os_RuntimeInit),
1534         REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit),
1535         REG_JNI(register_android_os_SystemClock),
1536         REG_JNI(register_android_util_CharsetUtils),
1537         REG_JNI(register_android_util_EventLog),
1538         REG_JNI(register_android_util_Log),
1539         REG_JNI(register_android_util_MemoryIntArray),
1540         REG_JNI(register_android_app_admin_SecurityLog),
1541         REG_JNI(register_android_content_AssetManager),
1542         REG_JNI(register_android_content_StringBlock),
1543         REG_JNI(register_android_content_XmlBlock),
1544         REG_JNI(register_android_content_res_ApkAssets),
1545         REG_JNI(register_android_content_res_ResourceTimer),
1546         REG_JNI(register_android_text_AndroidCharacter),
1547         REG_JNI(register_android_text_Hyphenator),
1548         REG_JNI(register_android_view_InputDevice),
1549         REG_JNI(register_android_view_KeyCharacterMap),
1550         REG_JNI(register_android_os_Process),
1551         REG_JNI(register_android_os_SystemProperties),
1552         REG_JNI(register_android_os_Binder),
1553         REG_JNI(register_android_os_Parcel),
1554         REG_JNI(register_android_os_PerformanceHintManager),
1555         REG_JNI(register_android_os_HidlMemory),
1556         REG_JNI(register_android_os_HidlSupport),
1557         REG_JNI(register_android_os_HwBinder),
1558         REG_JNI(register_android_os_HwBlob),
1559         REG_JNI(register_android_os_HwParcel),
1560         REG_JNI(register_android_os_HwRemoteBinder),
1561         REG_JNI(register_android_os_NativeHandle),
1562         REG_JNI(register_android_os_ServiceManager),
1563         REG_JNI(register_android_os_ServiceManagerNative),
1564         REG_JNI(register_android_os_storage_StorageManager),
1565         REG_JNI(register_android_service_DataLoaderService),
1566         REG_JNI(register_android_view_DisplayEventReceiver),
1567         REG_JNI(register_android_view_Surface),
1568         REG_JNI(register_android_view_SurfaceControl),
1569         REG_JNI(register_android_view_SurfaceControlActivePictureListener),
1570         REG_JNI(register_android_view_SurfaceControlHdrLayerInfoListener),
1571         REG_JNI(register_android_view_SurfaceSession),
1572         REG_JNI(register_android_view_InputApplicationHandle),
1573         // This must be called after register_android_view_SurfaceControl since it has a dependency
1574         // on the Java SurfaceControl object that references a native resource via static request.
1575         REG_JNI(register_android_view_InputWindowHandle),
1576         REG_JNI(register_android_view_CompositionSamplingListener),
1577         REG_JNI(register_android_view_TextureView),
1578         REG_JNI(register_android_view_TunnelModeEnabledListener),
1579         REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1580         REG_JNI(register_com_google_android_gles_jni_GLImpl),
1581         REG_JNI(register_android_opengl_jni_EGL14),
1582         REG_JNI(register_android_opengl_jni_EGL15),
1583         REG_JNI(register_android_opengl_jni_EGLExt),
1584         REG_JNI(register_android_opengl_jni_GLES10),
1585         REG_JNI(register_android_opengl_jni_GLES10Ext),
1586         REG_JNI(register_android_opengl_jni_GLES11),
1587         REG_JNI(register_android_opengl_jni_GLES11Ext),
1588         REG_JNI(register_android_opengl_jni_GLES20),
1589         REG_JNI(register_android_opengl_jni_GLES30),
1590         REG_JNI(register_android_opengl_jni_GLES31),
1591         REG_JNI(register_android_opengl_jni_GLES31Ext),
1592         REG_JNI(register_android_opengl_jni_GLES32),
1593         REG_JNI(register_android_graphics_classes),
1594         REG_JNI(register_android_graphics_BLASTBufferQueue),
1595         REG_JNI(register_android_graphics_GraphicBuffer),
1596         REG_JNI(register_android_graphics_GraphicsStatsService),
1597         REG_JNI(register_android_graphics_SurfaceTexture),
1598         REG_JNI(register_android_database_CursorWindow),
1599         REG_JNI(register_android_database_SQLiteConnection),
1600         REG_JNI(register_android_database_SQLiteGlobal),
1601         REG_JNI(register_android_database_SQLiteDebug),
1602         REG_JNI(register_android_database_SQLiteRawStatement),
1603         REG_JNI(register_android_os_Debug),
1604         REG_JNI(register_android_os_FileObserver),
1605         REG_JNI(register_android_os_GraphicsEnvironment),
1606         REG_JNI(register_android_os_MessageQueue),
1607         REG_JNI(register_android_os_SELinux),
1608         REG_JNI(register_android_os_Trace),
1609         REG_JNI(register_android_os_UEventObserver),
1610         REG_JNI(register_android_net_LocalSocketImpl),
1611         REG_JNI(register_android_os_MemoryFile),
1612         REG_JNI(register_android_os_SharedMemory),
1613         REG_JNI(register_android_os_incremental_IncrementalManager),
1614         REG_JNI(register_com_android_internal_content_om_OverlayConfig),
1615         REG_JNI(register_com_android_internal_content_om_OverlayManagerImpl),
1616         REG_JNI(register_com_android_internal_net_NetworkUtilsInternal),
1617         REG_JNI(register_com_android_internal_os_ClassLoaderFactory),
1618         REG_JNI(register_com_android_internal_os_DebugStore),
1619         REG_JNI(register_com_android_internal_os_LongArrayMultiStateCounter),
1620         REG_JNI(register_com_android_internal_os_LongMultiStateCounter),
1621         REG_JNI(register_com_android_internal_os_Zygote),
1622         REG_JNI(register_com_android_internal_os_ZygoteCommandBuffer),
1623         REG_JNI(register_com_android_internal_os_ZygoteInit),
1624         REG_JNI(register_com_android_internal_security_VerityUtils),
1625         REG_JNI(register_com_android_internal_util_ArrayUtils),
1626         REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1627         REG_JNI(register_android_hardware_Camera),
1628         REG_JNI(register_android_hardware_camera2_CameraMetadata),
1629         REG_JNI(register_android_hardware_camera2_CameraDevice),
1630         REG_JNI(register_android_hardware_camera2_DngCreator),
1631         REG_JNI(register_android_hardware_camera2_impl_CameraExtensionJpegProcessor),
1632         REG_JNI(register_android_hardware_camera2_utils_SurfaceUtils),
1633         REG_JNI(register_android_hardware_display_DisplayManagerGlobal),
1634         REG_JNI(register_android_hardware_HardwareBuffer),
1635         REG_JNI(register_android_hardware_OverlayProperties),
1636         REG_JNI(register_android_hardware_SensorManager),
1637         REG_JNI(register_android_hardware_SerialPort),
1638         REG_JNI(register_android_hardware_SyncFence),
1639         REG_JNI(register_android_hardware_UsbDevice),
1640         REG_JNI(register_android_hardware_UsbDeviceConnection),
1641         REG_JNI(register_android_hardware_UsbRequest),
1642         REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1643         REG_JNI(register_android_media_AudioDeviceAttributes),
1644         REG_JNI(register_android_media_AudioEffectDescriptor),
1645         REG_JNI(register_android_media_AudioSystem),
1646         REG_JNI(register_android_media_AudioRecord),
1647         REG_JNI(register_android_media_AudioTrack),
1648         REG_JNI(register_android_media_AudioAttributes),
1649         REG_JNI(register_android_media_AudioProductStrategies),
1650         REG_JNI(register_android_media_AudioVolumeGroups),
1651         REG_JNI(register_android_media_AudioVolumeGroupChangeHandler),
1652         REG_JNI(register_android_media_MediaMetrics),
1653         REG_JNI(register_android_media_MicrophoneInfo),
1654         REG_JNI(register_android_media_RemoteDisplay),
1655         REG_JNI(register_android_media_ToneGenerator),
1656         REG_JNI(register_android_media_audio_common_AidlConversion),
1657         REG_JNI(register_android_media_midi),
1658 
1659         REG_JNI(register_android_opengl_classes),
1660         REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1661         REG_JNI(register_android_backup_BackupDataInput),
1662         REG_JNI(register_android_backup_BackupDataOutput),
1663         REG_JNI(register_android_backup_FileBackupHelperBase),
1664         REG_JNI(register_android_backup_BackupHelperDispatcher),
1665         REG_JNI(register_android_app_backup_FullBackup),
1666         REG_JNI(register_android_app_Activity),
1667         REG_JNI(register_android_app_ActivityThread),
1668         REG_JNI(register_android_app_NativeActivity),
1669         REG_JNI(register_android_app_PropertyInvalidatedCache),
1670         REG_JNI(register_android_util_jar_StrictJarFile),
1671         REG_JNI(register_android_view_InputChannel),
1672         REG_JNI(register_android_view_InputEventReceiver),
1673         REG_JNI(register_android_view_InputEventSender),
1674         REG_JNI(register_android_view_InputQueue),
1675         REG_JNI(register_android_view_KeyEvent),
1676         REG_JNI(register_android_view_MotionEvent),
1677         REG_JNI(register_android_view_MotionPredictor),
1678         REG_JNI(register_android_view_PointerIcon),
1679         REG_JNI(register_android_view_VelocityTracker),
1680         REG_JNI(register_android_view_VerifiedKeyEvent),
1681         REG_JNI(register_android_view_VerifiedMotionEvent),
1682 
1683         REG_JNI(register_android_content_res_ObbScanner),
1684         REG_JNI(register_android_content_res_Configuration),
1685 
1686         REG_JNI(register_android_animation_PropertyValuesHolder),
1687         REG_JNI(register_android_security_Scrypt),
1688         REG_JNI(register_com_android_internal_content_F2fsUtils),
1689         REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1690         REG_JNI(register_com_android_internal_os_FuseAppLoop),
1691         REG_JNI(register_com_android_internal_os_KernelAllocationStats),
1692         REG_JNI(register_com_android_internal_os_KernelCpuBpfTracking),
1693         REG_JNI(register_com_android_internal_os_KernelCpuTotalBpfMapReader),
1694         REG_JNI(register_com_android_internal_os_KernelCpuUidBpfMapReader),
1695         REG_JNI(register_com_android_internal_os_KernelSingleProcessCpuThreadReader),
1696         REG_JNI(register_com_android_internal_os_KernelSingleUidTimeReader),
1697 
1698         REG_JNI(register_android_window_WindowInfosListener),
1699         REG_JNI(register_android_window_ScreenCapture),
1700         REG_JNI(register_jni_common),
1701 
1702         REG_JNI(register_android_tracing_PerfettoDataSource),
1703         REG_JNI(register_android_tracing_PerfettoDataSourceInstance),
1704         REG_JNI(register_android_tracing_PerfettoProducer),
1705         REG_JNI(register_android_window_InputTransferToken),
1706         REG_JNI(register_android_view_WindowManagerGlobal),
1707 };
1708 
1709 /*
1710  * Register android native functions with the VM.
1711  */
startReg(JNIEnv * env)1712 /*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1713 {
1714     ATRACE_NAME("RegisterAndroidNatives");
1715     /*
1716      * This hook causes all future threads created in this process to be
1717      * attached to the JavaVM.  (This needs to go away in favor of JNI
1718      * Attach calls.)
1719      */
1720     androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1721 
1722     ALOGV("--- registering native functions ---\n");
1723 
1724     /*
1725      * Every "register" function calls one or more things that return
1726      * a local reference (e.g. FindClass).  Because we haven't really
1727      * started the VM yet, they're all getting stored in the base frame
1728      * and never released.  Use Push/Pop to manage the storage.
1729      */
1730     env->PushLocalFrame(200);
1731 
1732     if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1733         env->PopLocalFrame(NULL);
1734         return -1;
1735     }
1736     env->PopLocalFrame(NULL);
1737 
1738     //createJavaThread("fubar", quickTest, (void*) "hello");
1739 
1740     return 0;
1741 }
1742 
getRuntime()1743 AndroidRuntime* AndroidRuntime::getRuntime()
1744 {
1745     return gCurRuntime;
1746 }
1747 
1748 /**
1749  * Used by surface flinger's DdmConnection to register native methods from
1750  * the framework.
1751  */
registerFrameworkNatives(JNIEnv * env)1752 extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1753     return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1754 }
1755 }   // namespace android
1756