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 <assert.h>
26 #include <binder/IBinder.h>
27 #include <binder/IPCThreadState.h>
28 #include <binder/IServiceManager.h>
29 #include <binder/Parcel.h>
30 #include <bionic/malloc.h>
31 #include <cutils/properties.h>
32 #include <dirent.h>
33 #include <dlfcn.h>
34 #include <nativehelper/JNIHelp.h>
35 #include <nativehelper/JniInvocation.h>
36 #include <server_configurable_flags/get_flags.h>
37 #include <signal.h>
38 #include <stdio.h>
39 #include <sys/stat.h>
40 #include <sys/types.h>
41 #include <utils/Log.h>
42 #include <utils/Trace.h>
43 #include <utils/misc.h>
44 #include <utils/threads.h>
45 
46 #include <string>
47 #include <vector>
48 
49 #include "android_util_Binder.h"
50 #include "jni.h"
51 
52 using namespace android;
53 using android::base::GetBoolProperty;
54 using android::base::GetProperty;
55 
56 extern int register_android_os_Binder(JNIEnv* env);
57 extern int register_android_os_Process(JNIEnv* env);
58 extern int register_android_graphics_GraphicBuffer(JNIEnv* env);
59 
60 extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
61 extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
62 extern int register_android_opengl_jni_EGL14(JNIEnv* env);
63 extern int register_android_opengl_jni_EGL15(JNIEnv* env);
64 extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
65 extern int register_android_opengl_jni_GLES10(JNIEnv* env);
66 extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
67 extern int register_android_opengl_jni_GLES11(JNIEnv* env);
68 extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
69 extern int register_android_opengl_jni_GLES20(JNIEnv* env);
70 extern int register_android_opengl_jni_GLES30(JNIEnv* env);
71 extern int register_android_opengl_jni_GLES31(JNIEnv* env);
72 extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
73 extern int register_android_opengl_jni_GLES32(JNIEnv* env);
74 
75 extern int register_android_hardware_Camera(JNIEnv *env);
76 extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
77 extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
78 extern int register_android_hardware_camera2_impl_CameraExtensionJpegProcessor(JNIEnv* env);
79 extern int register_android_hardware_camera2_utils_SurfaceUtils(JNIEnv* env);
80 extern int register_android_hardware_display_DisplayManagerGlobal(JNIEnv* env);
81 extern int register_android_hardware_HardwareBuffer(JNIEnv *env);
82 extern int register_android_hardware_SensorManager(JNIEnv *env);
83 extern int register_android_hardware_SerialPort(JNIEnv *env);
84 extern int register_android_hardware_UsbDevice(JNIEnv *env);
85 extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
86 extern int register_android_hardware_UsbRequest(JNIEnv *env);
87 extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
88 
89 extern int register_android_media_AudioDeviceAttributes(JNIEnv* env);
90 extern int register_android_media_AudioEffectDescriptor(JNIEnv *env);
91 extern int register_android_media_AudioRecord(JNIEnv *env);
92 extern int register_android_media_AudioSystem(JNIEnv *env);
93 extern int register_android_media_AudioTrack(JNIEnv *env);
94 extern int register_android_media_AudioAttributes(JNIEnv *env);
95 extern int register_android_media_AudioProductStrategies(JNIEnv *env);
96 extern int register_android_media_AudioVolumeGroups(JNIEnv *env);
97 extern int register_android_media_AudioVolumeGroupChangeHandler(JNIEnv *env);
98 extern int register_android_media_MicrophoneInfo(JNIEnv *env);
99 extern int register_android_media_ToneGenerator(JNIEnv *env);
100 extern int register_android_media_midi(JNIEnv *env);
101 
102 namespace android {
103 
104 /*
105  * JNI-based registration functions.  Note these are properly contained in
106  * namespace android.
107  */
108 extern int register_android_app_admin_SecurityLog(JNIEnv* env);
109 extern int register_android_content_AssetManager(JNIEnv* env);
110 extern int register_android_util_CharsetUtils(JNIEnv* env);
111 extern int register_android_util_EventLog(JNIEnv* env);
112 extern int register_android_util_Log(JNIEnv* env);
113 extern int register_android_util_MemoryIntArray(JNIEnv* env);
114 extern int register_android_content_StringBlock(JNIEnv* env);
115 extern int register_android_content_XmlBlock(JNIEnv* env);
116 extern int register_android_content_res_ApkAssets(JNIEnv* env);
117 extern int register_android_graphics_BLASTBufferQueue(JNIEnv* env);
118 extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
119 extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
120 extern int register_android_view_InputApplicationHandle(JNIEnv* env);
121 extern int register_android_view_InputWindowHandle(JNIEnv* env);
122 extern int register_android_view_Surface(JNIEnv* env);
123 extern int register_android_view_SurfaceControl(JNIEnv* env);
124 extern int register_android_view_SurfaceControlFpsListener(JNIEnv* env);
125 extern int register_android_view_SurfaceControlHdrLayerInfoListener(JNIEnv* env);
126 extern int register_android_view_SurfaceSession(JNIEnv* env);
127 extern int register_android_view_CompositionSamplingListener(JNIEnv* env);
128 extern int register_android_view_TextureView(JNIEnv* env);
129 extern int register_android_view_TunnelModeEnabledListener(JNIEnv* env);
130 extern int register_android_database_CursorWindow(JNIEnv* env);
131 extern int register_android_database_SQLiteConnection(JNIEnv* env);
132 extern int register_android_database_SQLiteGlobal(JNIEnv* env);
133 extern int register_android_database_SQLiteDebug(JNIEnv* env);
134 extern int register_android_media_MediaMetrics(JNIEnv *env);
135 extern int register_android_os_Debug(JNIEnv* env);
136 extern int register_android_os_GraphicsEnvironment(JNIEnv* env);
137 extern int register_android_os_HidlSupport(JNIEnv* env);
138 extern int register_android_os_HwBinder(JNIEnv *env);
139 extern int register_android_os_HwBlob(JNIEnv *env);
140 extern int register_android_os_HwParcel(JNIEnv *env);
141 extern int register_android_os_HwRemoteBinder(JNIEnv *env);
142 extern int register_android_os_NativeHandle(JNIEnv *env);
143 extern int register_android_os_ServiceManager(JNIEnv *env);
144 extern int register_android_os_MessageQueue(JNIEnv* env);
145 extern int register_android_os_Parcel(JNIEnv* env);
146 extern int register_android_os_PerformanceHintManager(JNIEnv* env);
147 extern int register_android_os_SELinux(JNIEnv* env);
148 extern int register_android_os_VintfObject(JNIEnv *env);
149 extern int register_android_os_VintfRuntimeInfo(JNIEnv *env);
150 extern int register_android_os_storage_StorageManager(JNIEnv* env);
151 extern int register_android_os_SystemProperties(JNIEnv *env);
152 extern int register_android_os_SystemClock(JNIEnv* env);
153 extern int register_android_os_Trace(JNIEnv* env);
154 extern int register_android_os_FileObserver(JNIEnv *env);
155 extern int register_android_os_UEventObserver(JNIEnv* env);
156 extern int register_android_os_HidlMemory(JNIEnv* env);
157 extern int register_android_os_MemoryFile(JNIEnv* env);
158 extern int register_android_os_SharedMemory(JNIEnv* env);
159 extern int register_android_service_DataLoaderService(JNIEnv* env);
160 extern int register_android_os_incremental_IncrementalManager(JNIEnv* env);
161 extern int register_android_net_LocalSocketImpl(JNIEnv* env);
162 extern int register_android_text_AndroidCharacter(JNIEnv *env);
163 extern int register_android_text_Hyphenator(JNIEnv *env);
164 extern int register_android_opengl_classes(JNIEnv *env);
165 extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
166 extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
167 extern int register_android_backup_BackupDataInput(JNIEnv *env);
168 extern int register_android_backup_BackupDataOutput(JNIEnv *env);
169 extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
170 extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
171 extern int register_android_app_backup_FullBackup(JNIEnv *env);
172 extern int register_android_app_Activity(JNIEnv *env);
173 extern int register_android_app_ActivityThread(JNIEnv *env);
174 extern int register_android_app_NativeActivity(JNIEnv *env);
175 extern int register_android_media_RemoteDisplay(JNIEnv *env);
176 extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
177 extern int register_android_view_InputChannel(JNIEnv* env);
178 extern int register_android_view_InputDevice(JNIEnv* env);
179 extern int register_android_view_InputEventReceiver(JNIEnv* env);
180 extern int register_android_view_InputEventSender(JNIEnv* env);
181 extern int register_android_view_InputQueue(JNIEnv* env);
182 extern int register_android_view_KeyCharacterMap(JNIEnv *env);
183 extern int register_android_view_KeyEvent(JNIEnv* env);
184 extern int register_android_view_MotionEvent(JNIEnv* env);
185 extern int register_android_view_PointerIcon(JNIEnv* env);
186 extern int register_android_view_VelocityTracker(JNIEnv* env);
187 extern int register_android_view_VerifiedKeyEvent(JNIEnv* env);
188 extern int register_android_view_VerifiedMotionEvent(JNIEnv* env);
189 extern int register_android_content_res_ObbScanner(JNIEnv* env);
190 extern int register_android_content_res_Configuration(JNIEnv* env);
191 extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
192 extern int register_android_security_Scrypt(JNIEnv *env);
193 extern int register_com_android_internal_content_F2fsUtils(JNIEnv* env);
194 extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
195 extern int register_com_android_internal_content_om_OverlayConfig(JNIEnv *env);
196 extern int register_com_android_internal_net_NetworkUtilsInternal(JNIEnv* env);
197 extern int register_com_android_internal_os_ClassLoaderFactory(JNIEnv* env);
198 extern int register_com_android_internal_os_DmabufInfoReader(JNIEnv* env);
199 extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env);
200 extern int register_com_android_internal_os_KernelCpuBpfTracking(JNIEnv* env);
201 extern int register_com_android_internal_os_KernelCpuTotalBpfMapReader(JNIEnv* env);
202 extern int register_com_android_internal_os_KernelCpuUidBpfMapReader(JNIEnv *env);
203 extern int register_com_android_internal_os_KernelSingleProcessCpuThreadReader(JNIEnv* env);
204 extern int register_com_android_internal_os_KernelSingleUidTimeReader(JNIEnv *env);
205 extern int register_com_android_internal_os_Zygote(JNIEnv *env);
206 extern int register_com_android_internal_os_ZygoteCommandBuffer(JNIEnv *env);
207 extern int register_com_android_internal_os_ZygoteInit(JNIEnv *env);
208 extern int register_com_android_internal_security_VerityUtils(JNIEnv* env);
209 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
210 extern int register_android_window_WindowInfosListener(JNIEnv* env);
211 
212 // Namespace for Android Runtime flags applied during boot time.
213 static const char* RUNTIME_NATIVE_BOOT_NAMESPACE = "runtime_native_boot";
214 // Feature flag name to enable/disable generational garbage collection in ART's
215 // Concurrent Copying (CC) garbage collector.
216 static const char* ENABLE_GENERATIONAL_CC = "enable_generational_cc";
217 // Runtime option enabling generational garbage collection in ART's Concurrent
218 // Copying (CC) garbage collector.
219 static const char* kGenerationalCCRuntimeOption = "-Xgc:generational_cc";
220 // Runtime option disabling generational garbage collection in ART's Concurrent
221 // Copying (CC) garbage collector.
222 static const char* kNoGenerationalCCRuntimeOption = "-Xgc:nogenerational_cc";
223 
224 // Phenotype property name for enabling profiling the boot class path.
225 static const char* PROFILE_BOOT_CLASS_PATH = "profilebootclasspath";
226 
227 // Feature flag name for running the JIT in Zygote experiment, b/119800099.
228 // TODO: Rename the server-level flag or remove.
229 static const char* ENABLE_JITZYGOTE_IMAGE = "enable_apex_image";
230 // Flag to pass to the runtime when using the JIT Zygote image.
231 static const char* kJitZygoteImageOption =
232         "-Ximage:boot.art:/nonx/boot-framework.art!/system/etc/boot-image.prof";
233 
234 // Feature flag name for disabling lock profiling.
235 static const char* DISABLE_LOCK_PROFILING = "disable_lock_profiling";
236 // Runtime option disabling lock profiling.
237 static const char* kLockProfThresholdRuntimeOption = "-Xlockprofthreshold:0";
238 
239 static AndroidRuntime* gCurRuntime = NULL;
240 
241 /*
242  * Code written in the Java Programming Language calls here from main().
243  */
com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv * env,jobject clazz)244 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
245 {
246     gCurRuntime->onStarted();
247 }
248 
com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv * env,jobject clazz)249 static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
250 {
251     gCurRuntime->onZygoteInit();
252 }
253 
com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv * env,jobject clazz,jboolean exitWithoutCleanup)254 static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
255         jobject clazz, jboolean exitWithoutCleanup)
256 {
257     gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
258 }
259 
260 /*
261  * JNI registration.
262  */
263 
register_com_android_internal_os_RuntimeInit(JNIEnv * env)264 int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
265 {
266     const JNINativeMethod methods[] = {
267             {"nativeFinishInit", "()V",
268              (void*)com_android_internal_os_RuntimeInit_nativeFinishInit},
269             {"nativeSetExitWithoutCleanup", "(Z)V",
270              (void*)com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup},
271     };
272     return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
273         methods, NELEM(methods));
274 }
275 
register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv * env)276 int register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env)
277 {
278     const JNINativeMethod methods[] = {
279         { "nativeZygoteInit", "()V",
280             (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit },
281     };
282     return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit",
283         methods, NELEM(methods));
284 }
285 
286 // ----------------------------------------------------------------------
287 
288 /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
289 
AndroidRuntime(char * argBlockStart,const size_t argBlockLength)290 AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
291         mExitWithoutCleanup(false),
292         mArgBlockStart(argBlockStart),
293         mArgBlockLength(argBlockLength)
294 {
295     init_android_graphics();
296 
297     // Pre-allocate enough space to hold a fair number of options.
298     mOptions.setCapacity(20);
299 
300     assert(gCurRuntime == NULL);        // one per process
301     gCurRuntime = this;
302 }
303 
~AndroidRuntime()304 AndroidRuntime::~AndroidRuntime()
305 {
306 }
307 
308 /*
309  * Register native methods using JNI.
310  */
registerNativeMethods(JNIEnv * env,const char * className,const JNINativeMethod * gMethods,int numMethods)311 /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
312     const char* className, const JNINativeMethod* gMethods, int numMethods)
313 {
314     return jniRegisterNativeMethods(env, className, gMethods, numMethods);
315 }
316 
setArgv0(const char * argv0,bool setProcName)317 void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
318     // Set the kernel's task name, for as much of the name as we can fit.
319     // The kernel's TASK_COMM_LEN minus one for the terminating NUL == 15.
320     if (setProcName) {
321         int len = strlen(argv0);
322         if (len < 15) {
323             pthread_setname_np(pthread_self(), argv0);
324         } else {
325             pthread_setname_np(pthread_self(), argv0 + len - 15);
326         }
327     }
328 
329     // Directly change the memory pointed to by argv[0].
330     memset(mArgBlockStart, 0, mArgBlockLength);
331     strlcpy(mArgBlockStart, argv0, mArgBlockLength);
332 
333     // Let bionic know that we just did that, because __progname points
334     // into argv[0] (https://issuetracker.google.com/152893281).
335     setprogname(mArgBlockStart);
336 }
337 
callMain(const String8 & className,jclass clazz,const Vector<String8> & args)338 status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
339     const Vector<String8>& args)
340 {
341     JNIEnv* env;
342     jmethodID methodId;
343 
344     ALOGD("Calling main entry %s", className.string());
345 
346     env = getJNIEnv();
347     if (clazz == NULL || env == NULL) {
348         return UNKNOWN_ERROR;
349     }
350 
351     methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
352     if (methodId == NULL) {
353         ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
354         return UNKNOWN_ERROR;
355     }
356 
357     /*
358      * We want to call main() with a String array with our arguments in it.
359      * Create an array and populate it.
360      */
361     jclass stringClass;
362     jobjectArray strArray;
363 
364     const size_t numArgs = args.size();
365     stringClass = env->FindClass("java/lang/String");
366     strArray = env->NewObjectArray(numArgs, stringClass, NULL);
367 
368     for (size_t i = 0; i < numArgs; i++) {
369         jstring argStr = env->NewStringUTF(args[i].string());
370         env->SetObjectArrayElement(strArray, i, argStr);
371     }
372 
373     env->CallStaticVoidMethod(clazz, methodId, strArray);
374     return NO_ERROR;
375 }
376 
377 /*
378  * The VM calls this through the "exit" hook.
379  */
runtime_exit(int code)380 static void runtime_exit(int code)
381 {
382     gCurRuntime->exit(code);
383 }
384 
385 /*
386  * The VM calls this through the "vfprintf" hook.
387  *
388  * We ignore "fp" and just write the results to the log file.
389  */
runtime_vfprintf(FILE * fp,const char * format,va_list ap)390 static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
391 {
392     LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
393 }
394 
395 /**
396  * The VM calls this when mutex contention debugging is enabled to
397  * determine whether or not the blocked thread was a "sensitive thread"
398  * for user responsiveness/smoothess.
399  *
400  * Our policy for this is whether or not we're tracing any StrictMode
401  * events on this thread (which we might've inherited via Binder calls
402  * into us)
403  */
runtime_isSensitiveThread()404 static bool runtime_isSensitiveThread() {
405     IPCThreadState* state = IPCThreadState::selfOrNull();
406     return state && state->getStrictModePolicy() != 0;
407 }
408 
hasDir(const char * dir)409 static int hasDir(const char* dir)
410 {
411     struct stat s;
412     int res = stat(dir, &s);
413     if (res == 0) {
414         return S_ISDIR(s.st_mode);
415     }
416     return 0;
417 }
418 
hasFile(const char * file)419 static bool hasFile(const char* file) {
420     struct stat s;
421     int res = stat(file, &s);
422     if (res == 0) {
423         return S_ISREG(s.st_mode);
424     }
425     return false;
426 }
427 
428 /*
429  * Read the persistent locale. Inspects the following system properties
430  * (in order) and returns the first non-empty property in the list :
431  *
432  * (1) persist.sys.locale
433  * (2) persist.sys.language/country/localevar (country and localevar are
434  * inspected iff. language is non-empty.
435  * (3) ro.product.locale
436  * (4) ro.product.locale.language/region
437  *
438  * Note that we need to inspect persist.sys.language/country/localevar to
439  * preserve language settings for devices that are upgrading from Lollipop
440  * to M. The same goes for ro.product.locale.language/region as well.
441  */
readLocale()442 const std::string readLocale()
443 {
444     const std::string locale = GetProperty("persist.sys.locale", "");
445     if (!locale.empty()) {
446         return locale;
447     }
448 
449     const std::string language = GetProperty("persist.sys.language", "");
450     if (!language.empty()) {
451         const std::string country = GetProperty("persist.sys.country", "");
452         const std::string variant = GetProperty("persist.sys.localevar", "");
453 
454         std::string out = language;
455         if (!country.empty()) {
456             out = out + "-" + country;
457         }
458 
459         if (!variant.empty()) {
460             out = out + "-" + variant;
461         }
462 
463         return out;
464     }
465 
466     const std::string productLocale = GetProperty("ro.product.locale", "");
467     if (!productLocale.empty()) {
468         return productLocale;
469     }
470 
471     // If persist.sys.locale and ro.product.locale are missing,
472     // construct a locale value from the individual locale components.
473     const std::string productLanguage = GetProperty("ro.product.locale.language", "en");
474     const std::string productRegion = GetProperty("ro.product.locale.region", "US");
475 
476     return productLanguage + "-" + productRegion;
477 }
478 
addOption(const char * optionString,void * extraInfo)479 void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
480 {
481     JavaVMOption opt;
482     opt.optionString = optionString;
483     opt.extraInfo = extraInfo;
484     mOptions.add(opt);
485 }
486 
487 /*
488  * Parse a property containing space-separated options that should be
489  * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
490  *
491  * This will cut up "extraOptsBuf" as we chop it into individual options.
492  *
493  * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
494  *
495  * Adds the strings, if any, to mOptions.
496  */
parseExtraOpts(char * extraOptsBuf,const char * quotingArg)497 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
498 {
499     char* start = extraOptsBuf;
500     char* end = NULL;
501     while (*start != '\0') {
502         while (*start == ' ')                   /* skip leading whitespace */
503             start++;
504         if (*start == '\0')                     /* was trailing ws, bail */
505             break;
506 
507         end = start+1;
508         while (*end != ' ' && *end != '\0')     /* find end of token */
509             end++;
510         if (*end == ' ')
511             *end++ = '\0';          /* mark end, advance to indicate more */
512 
513         if (quotingArg != NULL) {
514             addOption(quotingArg);
515         }
516         addOption(start);
517         start = end;
518     }
519 }
520 
521 /*
522  * Reads a "property" into "buffer" with a default of "defaultArg". If
523  * the property is non-empty, it is treated as a runtime option such
524  * as "-Xmx32m".
525  *
526  * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
527  *
528  * If an argument is found, it is added to mOptions.
529  *
530  * If an option is found, it is added to mOptions and true is
531  * returned. Otherwise false is returned.
532  */
parseRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * defaultArg)533 bool AndroidRuntime::parseRuntimeOption(const char* property,
534                                         char* buffer,
535                                         const char* runtimeArg,
536                                         const char* defaultArg)
537 {
538     strcpy(buffer, runtimeArg);
539     size_t runtimeArgLen = strlen(runtimeArg);
540     property_get(property, buffer+runtimeArgLen, defaultArg);
541     if (buffer[runtimeArgLen] == '\0') {
542         return false;
543     }
544     addOption(buffer);
545     return true;
546 }
547 
548 /*
549  * Reads a "property" into "buffer". If the property is non-empty, it
550  * is treated as a dex2oat compiler option that should be
551  * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified".
552  *
553  * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
554  *
555  * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
556  *
557  * If an option is found, it is added to mOptions and true is
558  * returned. Otherwise false is returned.
559  */
parseCompilerOption(const char * property,char * buffer,const char * compilerArg,const char * quotingArg)560 bool AndroidRuntime::parseCompilerOption(const char* property,
561                                          char* buffer,
562                                          const char* compilerArg,
563                                          const char* quotingArg)
564 {
565     strcpy(buffer, compilerArg);
566     size_t compilerArgLen = strlen(compilerArg);
567     property_get(property, buffer+compilerArgLen, "");
568     if (buffer[compilerArgLen] == '\0') {
569         return false;
570     }
571     addOption(quotingArg);
572     addOption(buffer);
573     return true;
574 }
575 
576 /*
577  * Reads a "property" into "buffer". If the property is non-empty, it
578  * is treated as a dex2oat compiler runtime option that should be
579  * passed as a quoted option, e.g. "-Ximage-compiler-option
580  * --runtime-arg -Ximage-compiler-option -Xmx32m".
581  *
582  * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
583  *
584  * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
585  *
586  * If an option is found, it is added to mOptions and true is
587  * returned. Otherwise false is returned.
588  */
parseCompilerRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * quotingArg)589 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
590                                                 char* buffer,
591                                                 const char* runtimeArg,
592                                                 const char* quotingArg)
593 {
594     strcpy(buffer, runtimeArg);
595     size_t runtimeArgLen = strlen(runtimeArg);
596     property_get(property, buffer+runtimeArgLen, "");
597     if (buffer[runtimeArgLen] == '\0') {
598         return false;
599     }
600     addOption(quotingArg);
601     addOption("--runtime-arg");
602     addOption(quotingArg);
603     addOption(buffer);
604     return true;
605 }
606 
607 /*
608  * Start the Dalvik Virtual Machine.
609  *
610  * Various arguments, most determined by system properties, are passed in.
611  * The "mOptions" vector is updated.
612  *
613  * CAUTION: when adding options in here, be careful not to put the
614  * char buffer inside a nested scope.  Adding the buffer to the
615  * options using mOptions.add() does not copy the buffer, so if the
616  * buffer goes out of scope the option may be overwritten.  It's best
617  * to put the buffer at the top of the function so that it is more
618  * unlikely that someone will surround it in a scope at a later time
619  * and thus introduce a bug.
620  *
621  * Returns 0 on success.
622  */
startVm(JavaVM ** pJavaVM,JNIEnv ** pEnv,bool zygote,bool primary_zygote)623 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote, bool primary_zygote)
624 {
625     JavaVMInitArgs initArgs;
626     char propBuf[PROPERTY_VALUE_MAX];
627     char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
628     char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
629     char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
630     char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
631     char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
632     char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
633     char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
634     char jitpthreadpriorityOptsBuf[sizeof("-Xjitpthreadpriority:")-1 + PROPERTY_VALUE_MAX];
635     char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
636     char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
637     char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
638     char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
639     char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
640     char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
641     char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX];
642     char saveResolvedClassesDelayMsOptsBuf[
643             sizeof("-Xps-save-resolved-classes-delay-ms:")-1 + PROPERTY_VALUE_MAX];
644     char profileMinSavePeriodOptsBuf[sizeof("-Xps-min-save-period-ms:")-1 + PROPERTY_VALUE_MAX];
645     char profileMinFirstSaveOptsBuf[
646             sizeof("-Xps-min-first-save-ms:")-1 + PROPERTY_VALUE_MAX];
647     char madviseRandomOptsBuf[sizeof("-XX:MadviseRandomAccess:")-1 + PROPERTY_VALUE_MAX];
648     char madviseWillNeedFileSizeVdex[
649             sizeof("-XMadviseWillNeedVdexFileSize:")-1 + PROPERTY_VALUE_MAX];
650     char madviseWillNeedFileSizeOdex[
651             sizeof("-XMadviseWillNeedOdexFileSize:")-1 + PROPERTY_VALUE_MAX];
652     char madviseWillNeedFileSizeArt[
653             sizeof("-XMadviseWillNeedArtFileSize:")-1 + PROPERTY_VALUE_MAX];
654     char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
655     char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
656     char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
657     char foregroundHeapGrowthMultiplierOptsBuf[
658             sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX];
659     char finalizerTimeoutMsOptsBuf[sizeof("-XX:FinalizerTimeoutMs=")-1 + PROPERTY_VALUE_MAX];
660     char threadSuspendTimeoutOptsBuf[sizeof("-XX:ThreadSuspendTimeout=")-1 + PROPERTY_VALUE_MAX];
661     char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
662     char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
663     char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
664     char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
665     char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
666     char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
667     char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
668     char dex2oatCpuSetBuf[sizeof("--cpu-set=")-1 + PROPERTY_VALUE_MAX];
669     char dex2oatCpuSetImageBuf[sizeof("--cpu-set=")-1 + PROPERTY_VALUE_MAX];
670     char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
671     char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
672     char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
673     char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
674     char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
675     char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
676     char extraOptsBuf[PROPERTY_VALUE_MAX];
677     char voldDecryptBuf[PROPERTY_VALUE_MAX];
678     char perfettoHprofOptBuf[sizeof("-XX:PerfettoHprof=") + PROPERTY_VALUE_MAX];
679     char perfettoJavaHeapStackOptBuf[
680             sizeof("-XX:PerfettoJavaHeapStackProf=") + PROPERTY_VALUE_MAX];
681     enum {
682       kEMDefault,
683       kEMIntPortable,
684       kEMIntFast,
685       kEMJitCompiler,
686     } executionMode = kEMDefault;
687     char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
688     char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
689     char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
690     char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
691     char corePlatformApiPolicyBuf[sizeof("-Xcore-platform-api-policy:") + PROPERTY_VALUE_MAX];
692     char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
693     char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
694     std::string fingerprintBuf;
695     char javaZygoteForkLoopBuf[sizeof("-XX:ForceJavaZygoteForkLoop=") + PROPERTY_VALUE_MAX];
696     char jdwpProviderBuf[sizeof("-XjdwpProvider:") - 1 + PROPERTY_VALUE_MAX];
697     char opaqueJniIds[sizeof("-Xopaque-jni-ids:") - 1 + PROPERTY_VALUE_MAX];
698     char bootImageBuf[sizeof("-Ximage:") - 1 + PROPERTY_VALUE_MAX];
699 
700     // Read if we are using the profile configuration, do this at the start since the last ART args
701     // take precedence.
702     property_get("dalvik.vm.profilebootclasspath", propBuf, "");
703     std::string profile_boot_class_path_flag = propBuf;
704     // Empty means the property is unset and we should default to the phenotype property.
705     // The possible values are {"true", "false", ""}
706     if (profile_boot_class_path_flag.empty()) {
707         profile_boot_class_path_flag = server_configurable_flags::GetServerConfigurableFlag(
708                 RUNTIME_NATIVE_BOOT_NAMESPACE,
709                 PROFILE_BOOT_CLASS_PATH,
710                 /*default_value=*/ "");
711     }
712     const bool profile_boot_class_path = (profile_boot_class_path_flag == "true");
713     if (profile_boot_class_path) {
714         addOption("-Xcompiler-option");
715         addOption("--count-hotness-in-compiled-code");
716         addOption("-Xps-profile-boot-class-path");
717         addOption("-Xps-profile-aot-code");
718         addOption("-Xjitsaveprofilinginfo");
719     }
720 
721     std::string use_jitzygote_image_flag =
722             server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
723                                                                  ENABLE_JITZYGOTE_IMAGE,
724                                                                  /*default_value=*/"");
725     // Use the APEX boot image for boot class path profiling to get JIT samples on BCP methods.
726     // Also use the APEX boot image if it's explicitly enabled via configuration flag.
727     const bool use_apex_image = profile_boot_class_path || (use_jitzygote_image_flag == "true");
728     if (use_apex_image) {
729         ALOGI("Using JIT Zygote image: '%s'\n", kJitZygoteImageOption);
730         addOption(kJitZygoteImageOption);
731     } else if (parseRuntimeOption("dalvik.vm.boot-image", bootImageBuf, "-Ximage:")) {
732         ALOGI("Using dalvik.vm.boot-image: '%s'\n", bootImageBuf);
733     } else {
734         ALOGI("Using default boot image");
735     }
736 
737     std::string disable_lock_profiling =
738         server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
739                                                              DISABLE_LOCK_PROFILING,
740                                                              /*default_value=*/ "");
741     if (disable_lock_profiling == "true") {
742         addOption(kLockProfThresholdRuntimeOption);
743         ALOGI("Disabling lock profiling: '%s'\n", kLockProfThresholdRuntimeOption);
744     } else {
745         ALOGI("Leaving lock profiling enabled");
746     }
747 
748     const bool checkJni = GetBoolProperty("dalvik.vm.checkjni", false);
749     ALOGV("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
750     if (checkJni) {
751         /* extended JNI checking */
752         addOption("-Xcheck:jni");
753 
754         /* with -Xcheck:jni, this provides a JNI function call trace */
755         //addOption("-verbose:jni");
756     }
757 
758     const bool odsignVerificationSuccess = GetBoolProperty("odsign.verification.success", false);
759     if (!odsignVerificationSuccess) {
760         addOption("-Xdeny-art-apex-data-files");
761     }
762 
763     property_get("dalvik.vm.execution-mode", propBuf, "");
764     if (strcmp(propBuf, "int:portable") == 0) {
765         executionMode = kEMIntPortable;
766     } else if (strcmp(propBuf, "int:fast") == 0) {
767         executionMode = kEMIntFast;
768     } else if (strcmp(propBuf, "int:jit") == 0) {
769         executionMode = kEMJitCompiler;
770     }
771 
772     strcpy(jniOptsBuf, "-Xjniopts:");
773     if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
774         ALOGI("JNI options: '%s'\n", jniOptsBuf);
775     }
776 
777     /* route exit() to our handler */
778     addOption("exit", (void*) runtime_exit);
779 
780     /* route fprintf() to our handler */
781     addOption("vfprintf", (void*) runtime_vfprintf);
782 
783     /* register the framework-specific "is sensitive thread" hook */
784     addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
785 
786     /* enable verbose; standard options are { jni, gc, class } */
787     //addOption("-verbose:jni");
788     addOption("-verbose:gc");
789     //addOption("-verbose:class");
790 
791     // On Android, we always want to allow loading the PerfettoHprof plugin.
792     // Even with this option set, we will still only actually load the plugin
793     // if we are on a userdebug build or the app is debuggable or profileable.
794     // This is enforced in art/runtime/runtime.cc.
795     //
796     // We want to be able to disable this, because this does not work on host,
797     // and we do not want to enable it in tests.
798     parseRuntimeOption("dalvik.vm.perfetto_hprof", perfettoHprofOptBuf, "-XX:PerfettoHprof=",
799                        "true");
800 
801     // Enable PerfettoJavaHeapStackProf in the zygote
802     parseRuntimeOption("dalvik.vm.perfetto_javaheap", perfettoJavaHeapStackOptBuf,
803                        "-XX:PerfettoJavaHeapStackProf=", "true");
804 
805     if (primary_zygote) {
806         addOption("-Xprimaryzygote");
807     }
808 
809     /*
810      * The default starting and maximum size of the heap.  Larger
811      * values should be specified in a product property override.
812      */
813     parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
814     parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
815 
816     parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
817     parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
818     parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
819     parseRuntimeOption("dalvik.vm.heaptargetutilization",
820                        heaptargetutilizationOptsBuf,
821                        "-XX:HeapTargetUtilization=");
822 
823     /* Foreground heap growth multiplier option */
824     parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier",
825                        foregroundHeapGrowthMultiplierOptsBuf,
826                        "-XX:ForegroundHeapGrowthMultiplier=");
827     /*
828      * Finalizer and thread suspend timeouts.
829      */
830     parseRuntimeOption("dalvik.vm.finalizer-timeout-ms",
831                        finalizerTimeoutMsOptsBuf,
832                        "-XX:FinalizerTimeoutMs=");
833     parseRuntimeOption("dalvik.vm.thread-suspend-timeout-ms",
834                        threadSuspendTimeoutOptsBuf,
835                        "-XX:ThreadSuspendTimeout=");
836     /*
837      * JIT related options.
838      */
839     parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
840     parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
841     parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
842     parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
843     parseRuntimeOption("dalvik.vm.jitpthreadpriority",
844                        jitpthreadpriorityOptsBuf,
845                        "-Xjitpthreadpriority:");
846     property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
847     if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
848         addOption("-Xjitsaveprofilinginfo");
849     }
850 
851     parseRuntimeOption("dalvik.vm.jitprithreadweight",
852                        jitprithreadweightOptBuf,
853                        "-Xjitprithreadweight:");
854 
855     parseRuntimeOption("dalvik.vm.jittransitionweight",
856                        jittransitionweightOptBuf,
857                        "-Xjittransitionweight:");
858     /*
859      * Madvise related options.
860      */
861     parseRuntimeOption("dalvik.vm.madvise-random", madviseRandomOptsBuf, "-XX:MadviseRandomAccess:");
862 
863     /*
864      * Use default platform configuration as limits for madvising,
865      * when no properties are specified.
866      */
867     parseRuntimeOption("dalvik.vm.madvise.vdexfile.size",
868                        madviseWillNeedFileSizeVdex,
869                        "-XMadviseWillNeedVdexFileSize:");
870 
871     parseRuntimeOption("dalvik.vm.madvise.odexfile.size",
872                        madviseWillNeedFileSizeOdex,
873                        "-XMadviseWillNeedOdexFileSize:");
874 
875     parseRuntimeOption("dalvik.vm.madvise.artfile.size",
876                        madviseWillNeedFileSizeArt,
877                        "-XMadviseWillNeedArtFileSize:");
878 
879     /*
880      * Profile related options.
881      */
882     parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf,
883             "-Xps-hot-startup-method-samples:");
884 
885     parseRuntimeOption("dalvik.vm.ps-resolved-classes-delay-ms", saveResolvedClassesDelayMsOptsBuf,
886             "-Xps-save-resolved-classes-delay-ms:");
887 
888     parseRuntimeOption("dalvik.vm.ps-min-save-period-ms", profileMinSavePeriodOptsBuf,
889             "-Xps-min-save-period-ms:");
890 
891     parseRuntimeOption("dalvik.vm.ps-min-first-save-ms", profileMinFirstSaveOptsBuf,
892             "-Xps-min-first-save-ms:");
893 
894     property_get("ro.config.low_ram", propBuf, "");
895     if (strcmp(propBuf, "true") == 0) {
896       addOption("-XX:LowMemoryMode");
897     }
898 
899     /*
900      * Garbage-collection related options.
901      */
902     parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
903 
904     // If it set, honor the "enable_generational_cc" device configuration;
905     // otherwise, let the runtime use its default behavior.
906     std::string enable_generational_cc =
907         server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
908                                                              ENABLE_GENERATIONAL_CC,
909                                                              /*default_value=*/ "");
910     if (enable_generational_cc == "true") {
911         addOption(kGenerationalCCRuntimeOption);
912     } else if (enable_generational_cc == "false") {
913         addOption(kNoGenerationalCCRuntimeOption);
914     }
915 
916     parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
917 
918     /*
919      * Enable/disable zygote native fork loop.
920      */
921     parseRuntimeOption("dalvik.vm.force-java-zygote-fork-loop",
922                        javaZygoteForkLoopBuf,
923                        "-XX:ForceJavaZygoteForkLoop=");
924 
925     /*
926      * Enable debugging only for apps forked from zygote.
927      */
928     if (zygote) {
929       // Set the JDWP provider and required arguments. By default let the runtime choose how JDWP is
930       // implemented. When this is not set the runtime defaults to not allowing JDWP.
931       addOption("-XjdwpOptions:suspend=n,server=y");
932       parseRuntimeOption("dalvik.vm.jdwp-provider",
933                          jdwpProviderBuf,
934                          "-XjdwpProvider:",
935                          "default");
936     }
937 
938     // Only pass an explicit opaque-jni-ids to apps forked from zygote
939     if (zygote) {
940       parseRuntimeOption("dalvik.vm.opaque-jni-ids",
941                         opaqueJniIds,
942                         "-Xopaque-jni-ids:",
943                         "swapable");
944     }
945 
946     parseRuntimeOption("dalvik.vm.lockprof.threshold",
947                        lockProfThresholdBuf,
948                        "-Xlockprofthreshold:");
949 
950     if (executionMode == kEMIntPortable) {
951         addOption("-Xint:portable");
952     } else if (executionMode == kEMIntFast) {
953         addOption("-Xint:fast");
954     } else if (executionMode == kEMJitCompiler) {
955         addOption("-Xint:jit");
956     }
957 
958     // If we are booting without the real /data, don't spend time compiling.
959     property_get("vold.decrypt", voldDecryptBuf, "");
960     bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
961                              (strcmp(voldDecryptBuf, "1") == 0));
962 
963     // Extra options for JIT.
964     if (skip_compilation) {
965         addOption("-Xcompiler-option");
966         addOption("--compiler-filter=assume-verified");
967     } else {
968         parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
969                             "--compiler-filter=", "-Xcompiler-option");
970     }
971     parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
972     parseCompilerOption("dalvik.vm.dex2oat-cpu-set", dex2oatCpuSetBuf, "--cpu-set=",
973                         "-Xcompiler-option");
974 
975     // Copy the variant.
976     sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", ABI_STRING);
977     parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
978                         "--instruction-set-variant=", "-Xcompiler-option");
979     // Copy the features.
980     sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", ABI_STRING);
981     parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
982                         "--instruction-set-features=", "-Xcompiler-option");
983 
984     /*
985      * When running with debug.generate-debug-info, add --generate-debug-info to
986      * the compiler options so that both JITted code and the boot image extension,
987      * if it is compiled on device, will include native debugging information.
988      */
989     property_get("debug.generate-debug-info", propBuf, "");
990     bool generate_debug_info = (strcmp(propBuf, "true") == 0);
991     if (generate_debug_info) {
992         addOption("-Xcompiler-option");
993         addOption("--generate-debug-info");
994     }
995 
996     // The mini-debug-info makes it possible to backtrace through compiled code.
997     bool generate_mini_debug_info = property_get_bool("dalvik.vm.minidebuginfo", 0);
998     if (generate_mini_debug_info) {
999         addOption("-Xcompiler-option");
1000         addOption("--generate-mini-debug-info");
1001     }
1002 
1003     property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
1004     parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
1005 
1006     /* extra options; parse this late so it overrides others */
1007     property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
1008     parseExtraOpts(extraOptsBuf, NULL);
1009 
1010     // Extra options for boot image extension generation.
1011     if (skip_compilation) {
1012         addOption("-Xnoimage-dex2oat");
1013     } else {
1014         parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
1015                                    "-Xms", "-Ximage-compiler-option");
1016         parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
1017                                    "-Xmx", "-Ximage-compiler-option");
1018 
1019         parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
1020                             "--compiler-filter=", "-Ximage-compiler-option");
1021 
1022         // If there is a dirty-image-objects file, push it.
1023         if (hasFile("/system/etc/dirty-image-objects")) {
1024             addOption("-Ximage-compiler-option");
1025             addOption("--dirty-image-objects=/system/etc/dirty-image-objects");
1026         }
1027 
1028         parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
1029                             "-Ximage-compiler-option");
1030         parseCompilerOption("dalvik.vm.image-dex2oat-cpu-set", dex2oatCpuSetImageBuf, "--cpu-set=",
1031                             "-Ximage-compiler-option");
1032 
1033         // The runtime may compile a boot image extension, when necessary, not using installd.
1034         // Thus, we need to pass the instruction-set-features/variant as an image-compiler-option.
1035         // Note: it is OK to reuse the buffer, as the values are exactly the same between
1036         //       * compiler-option, used for runtime compilation (DexClassLoader)
1037         //       * image-compiler-option, used for boot-image compilation on device
1038         parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
1039                             "--instruction-set-variant=", "-Ximage-compiler-option");
1040         parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
1041                             "--instruction-set-features=", "-Ximage-compiler-option");
1042 
1043         if (generate_debug_info) {
1044             addOption("-Ximage-compiler-option");
1045             addOption("--generate-debug-info");
1046         }
1047 
1048         if (generate_mini_debug_info) {
1049             addOption("-Ximage-compiler-option");
1050             addOption("--generate-mini-debug-info");
1051         }
1052 
1053         property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
1054         parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
1055     }
1056 
1057     /* Set the properties for locale */
1058     {
1059         strcpy(localeOption, "-Duser.locale=");
1060         const std::string locale = readLocale();
1061         strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
1062         addOption(localeOption);
1063     }
1064 
1065     // Trace files are stored in /data/misc/trace which is writable only in debug mode.
1066     property_get("ro.debuggable", propBuf, "0");
1067     if (strcmp(propBuf, "1") == 0) {
1068         property_get("dalvik.vm.method-trace", propBuf, "false");
1069         if (strcmp(propBuf, "true") == 0) {
1070             addOption("-Xmethod-trace");
1071             parseRuntimeOption("dalvik.vm.method-trace-file",
1072                                methodTraceFileBuf,
1073                                "-Xmethod-trace-file:");
1074             parseRuntimeOption("dalvik.vm.method-trace-file-siz",
1075                                methodTraceFileSizeBuf,
1076                                "-Xmethod-trace-file-size:");
1077             property_get("dalvik.vm.method-trace-stream", propBuf, "false");
1078             if (strcmp(propBuf, "true") == 0) {
1079                 addOption("-Xmethod-trace-stream");
1080             }
1081         }
1082     }
1083 
1084     // Native bridge library. "0" means that native bridge is disabled.
1085     //
1086     // Note: bridging is only enabled for the zygote. Other runs of
1087     //       app_process may not have the permissions to mount etc.
1088     property_get("ro.dalvik.vm.native.bridge", propBuf, "");
1089     if (propBuf[0] == '\0') {
1090         ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
1091     } else if (zygote && strcmp(propBuf, "0") != 0) {
1092         snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
1093                  "-XX:NativeBridge=%s", propBuf);
1094         addOption(nativeBridgeLibrary);
1095     }
1096 
1097 #if defined(__LP64__)
1098     const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
1099 #else
1100     const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
1101 #endif  // defined(__LP64__)
1102     property_get(cpu_abilist_property_name, propBuf, "");
1103     if (propBuf[0] == '\0') {
1104         ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
1105         return -1;
1106     }
1107     snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
1108     addOption(cpuAbiListBuf);
1109 
1110     // Dalvik-cache pruning counter.
1111     parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
1112                        "-Xzygote-max-boot-retry=");
1113 
1114     // If set, the property below can be used to enable core platform API violation reporting.
1115     property_get("persist.debug.dalvik.vm.core_platform_api_policy", propBuf, "");
1116     if (propBuf[0] != '\0') {
1117       snprintf(corePlatformApiPolicyBuf,
1118                sizeof(corePlatformApiPolicyBuf),
1119                "-Xcore-platform-api-policy:%s",
1120                propBuf);
1121       addOption(corePlatformApiPolicyBuf);
1122     }
1123 
1124     /*
1125      * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
1126      * contain the fingerprint and can be parsed.
1127      * Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot
1128      * be used here.
1129      * Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions.
1130      */
1131     std::string fingerprint = GetProperty("ro.build.fingerprint", "");
1132     if (!fingerprint.empty()) {
1133         fingerprintBuf = "-Xfingerprint:" + fingerprint;
1134         addOption(fingerprintBuf.c_str());
1135     }
1136 
1137     initArgs.version = JNI_VERSION_1_4;
1138     initArgs.options = mOptions.editArray();
1139     initArgs.nOptions = mOptions.size();
1140     initArgs.ignoreUnrecognized = JNI_FALSE;
1141 
1142     /*
1143      * Initialize the VM.
1144      *
1145      * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
1146      * If this call succeeds, the VM is ready, and we can start issuing
1147      * JNI calls.
1148      */
1149     if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
1150         ALOGE("JNI_CreateJavaVM failed\n");
1151         return -1;
1152     }
1153 
1154     return 0;
1155 }
1156 
toSlashClassName(const char * className)1157 char* AndroidRuntime::toSlashClassName(const char* className)
1158 {
1159     char* result = strdup(className);
1160     for (char* cp = result; *cp != '\0'; cp++) {
1161         if (*cp == '.') {
1162             *cp = '/';
1163         }
1164     }
1165     return result;
1166 }
1167 
1168 /** Create a Java string from an ASCII or Latin-1 string */
NewStringLatin1(JNIEnv * env,const char * bytes)1169 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
1170     if (!bytes) return NULL;
1171     int length = strlen(bytes);
1172     jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
1173     if (!buffer) return NULL;
1174     jchar* chp = buffer;
1175     for (int i = 0; i < length; i++) {
1176         *chp++ = *bytes++;
1177     }
1178     return env->NewString(buffer, length);
1179 }
1180 
1181 
1182 /*
1183  * Start the Android runtime.  This involves starting the virtual machine
1184  * and calling the "static void main(String[] args)" method in the class
1185  * named by "className".
1186  *
1187  * Passes the main function two arguments, the class name and the specified
1188  * options string.
1189  */
start(const char * className,const Vector<String8> & options,bool zygote)1190 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
1191 {
1192     ALOGD(">>>>>> START %s uid %d <<<<<<\n",
1193             className != NULL ? className : "(unknown)", getuid());
1194 
1195     static const String8 startSystemServer("start-system-server");
1196     // Whether this is the primary zygote, meaning the zygote which will fork system server.
1197     bool primary_zygote = false;
1198 
1199     /*
1200      * 'startSystemServer == true' means runtime is obsolete and not run from
1201      * init.rc anymore, so we print out the boot start event here.
1202      */
1203     for (size_t i = 0; i < options.size(); ++i) {
1204         if (options[i] == startSystemServer) {
1205             primary_zygote = true;
1206            /* track our progress through the boot sequence */
1207            const int LOG_BOOT_PROGRESS_START = 3000;
1208            LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
1209         }
1210     }
1211 
1212     const char* rootDir = getenv("ANDROID_ROOT");
1213     if (rootDir == NULL) {
1214         rootDir = "/system";
1215         if (!hasDir("/system")) {
1216             LOG_FATAL("No root directory specified, and /system does not exist.");
1217             return;
1218         }
1219         setenv("ANDROID_ROOT", rootDir, 1);
1220     }
1221 
1222     const char* artRootDir = getenv("ANDROID_ART_ROOT");
1223     if (artRootDir == NULL) {
1224         LOG_FATAL("No ART directory specified with ANDROID_ART_ROOT environment variable.");
1225         return;
1226     }
1227 
1228     const char* i18nRootDir = getenv("ANDROID_I18N_ROOT");
1229     if (i18nRootDir == NULL) {
1230         LOG_FATAL("No runtime directory specified with ANDROID_I18N_ROOT environment variable.");
1231         return;
1232     }
1233 
1234     const char* tzdataRootDir = getenv("ANDROID_TZDATA_ROOT");
1235     if (tzdataRootDir == NULL) {
1236         LOG_FATAL("No tz data directory specified with ANDROID_TZDATA_ROOT environment variable.");
1237         return;
1238     }
1239 
1240     //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1241     //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1242 
1243     /* start the virtual machine */
1244     JniInvocation jni_invocation;
1245     jni_invocation.Init(NULL);
1246     JNIEnv* env;
1247     if (startVm(&mJavaVM, &env, zygote, primary_zygote) != 0) {
1248         return;
1249     }
1250     onVmCreated(env);
1251 
1252     /*
1253      * Register android functions.
1254      */
1255     if (startReg(env) < 0) {
1256         ALOGE("Unable to register all android natives\n");
1257         return;
1258     }
1259 
1260     /*
1261      * We want to call main() with a String array with arguments in it.
1262      * At present we have two arguments, the class name and an option string.
1263      * Create an array to hold them.
1264      */
1265     jclass stringClass;
1266     jobjectArray strArray;
1267     jstring classNameStr;
1268 
1269     stringClass = env->FindClass("java/lang/String");
1270     assert(stringClass != NULL);
1271     strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1272     assert(strArray != NULL);
1273     classNameStr = env->NewStringUTF(className);
1274     assert(classNameStr != NULL);
1275     env->SetObjectArrayElement(strArray, 0, classNameStr);
1276 
1277     for (size_t i = 0; i < options.size(); ++i) {
1278         jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1279         assert(optionsStr != NULL);
1280         env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1281     }
1282 
1283     /*
1284      * Start VM.  This thread becomes the main thread of the VM, and will
1285      * not return until the VM exits.
1286      */
1287     char* slashClassName = toSlashClassName(className != NULL ? className : "");
1288     jclass startClass = env->FindClass(slashClassName);
1289     if (startClass == NULL) {
1290         ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1291         /* keep going */
1292     } else {
1293         jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1294             "([Ljava/lang/String;)V");
1295         if (startMeth == NULL) {
1296             ALOGE("JavaVM unable to find main() in '%s'\n", className);
1297             /* keep going */
1298         } else {
1299             env->CallStaticVoidMethod(startClass, startMeth, strArray);
1300 
1301 #if 0
1302             if (env->ExceptionCheck())
1303                 threadExitUncaughtException(env);
1304 #endif
1305         }
1306     }
1307     free(slashClassName);
1308 
1309     ALOGD("Shutting down VM\n");
1310     if (mJavaVM->DetachCurrentThread() != JNI_OK)
1311         ALOGW("Warning: unable to detach main thread\n");
1312     if (mJavaVM->DestroyJavaVM() != 0)
1313         ALOGW("Warning: VM did not shut down cleanly\n");
1314 }
1315 
exit(int code)1316 void AndroidRuntime::exit(int code)
1317 {
1318     if (mExitWithoutCleanup) {
1319         ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1320     } else {
1321         ALOGI("VM exiting with result code %d.", code);
1322         onExit(code);
1323     }
1324     ::_exit(code);
1325 }
1326 
onVmCreated(JNIEnv * env)1327 void AndroidRuntime::onVmCreated(JNIEnv* env)
1328 {
1329     // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1330 }
1331 
getJavaVM()1332 /*static*/ JavaVM* AndroidRuntime::getJavaVM() {
1333     return AndroidRuntime::mJavaVM;
1334 }
1335 
1336 /*
1337  * Get the JNIEnv pointer for this thread.
1338  *
1339  * Returns NULL if the slot wasn't allocated or populated.
1340  */
getJNIEnv()1341 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1342 {
1343     JNIEnv* env;
1344     JavaVM* vm = AndroidRuntime::getJavaVM();
1345     assert(vm != NULL);
1346 
1347     if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1348         return NULL;
1349     return env;
1350 }
1351 
1352 /*
1353  * Makes the current thread visible to the VM.
1354  *
1355  * The JNIEnv pointer returned is only valid for the current thread, and
1356  * thus must be tucked into thread-local storage.
1357  */
javaAttachThread(const char * threadName,JNIEnv ** pEnv)1358 static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1359 {
1360     JavaVMAttachArgs args;
1361     JavaVM* vm;
1362     jint result;
1363 
1364     vm = AndroidRuntime::getJavaVM();
1365     assert(vm != NULL);
1366 
1367     args.version = JNI_VERSION_1_4;
1368     args.name = (char*) threadName;
1369     args.group = NULL;
1370 
1371     result = vm->AttachCurrentThread(pEnv, (void*) &args);
1372     if (result != JNI_OK)
1373         ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1374 
1375     return result;
1376 }
1377 
1378 /*
1379  * Detach the current thread from the set visible to the VM.
1380  */
javaDetachThread(void)1381 static int javaDetachThread(void)
1382 {
1383     JavaVM* vm;
1384     jint result;
1385 
1386     vm = AndroidRuntime::getJavaVM();
1387     assert(vm != NULL);
1388 
1389     result = vm->DetachCurrentThread();
1390     if (result != JNI_OK)
1391         ALOGE("ERROR: thread detach failed\n");
1392     return result;
1393 }
1394 
1395 /*
1396  * When starting a native thread that will be visible from the VM, we
1397  * bounce through this to get the right attach/detach action.
1398  * Note that this function calls free(args)
1399  */
javaThreadShell(void * args)1400 /*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1401     void* start = ((void**)args)[0];
1402     void* userData = ((void **)args)[1];
1403     char* name = (char*) ((void **)args)[2];        // we own this storage
1404     free(args);
1405     JNIEnv* env;
1406     int result;
1407 
1408     /* hook us into the VM */
1409     if (javaAttachThread(name, &env) != JNI_OK)
1410         return -1;
1411 
1412     /* start the thread running */
1413     result = (*(android_thread_func_t)start)(userData);
1414 
1415     /* unhook us */
1416     javaDetachThread();
1417     free(name);
1418 
1419     return result;
1420 }
1421 
1422 /*
1423  * This is invoked from androidCreateThreadEtc() via the callback
1424  * set with androidSetCreateThreadFunc().
1425  *
1426  * We need to create the new thread in such a way that it gets hooked
1427  * into the VM before it really starts executing.
1428  */
javaCreateThreadEtc(android_thread_func_t entryFunction,void * userData,const char * threadName,int32_t threadPriority,size_t threadStackSize,android_thread_id_t * threadId)1429 /*static*/ int AndroidRuntime::javaCreateThreadEtc(
1430                                 android_thread_func_t entryFunction,
1431                                 void* userData,
1432                                 const char* threadName,
1433                                 int32_t threadPriority,
1434                                 size_t threadStackSize,
1435                                 android_thread_id_t* threadId)
1436 {
1437     void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1438     int result;
1439 
1440     LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1441 
1442     args[0] = (void*) entryFunction;
1443     args[1] = userData;
1444     args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1445 
1446     result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1447         threadName, threadPriority, threadStackSize, threadId);
1448     return result;
1449 }
1450 
1451 /*
1452  * Create a thread that is visible from the VM.
1453  *
1454  * This is called from elsewhere in the library.
1455  */
createJavaThread(const char * name,void (* start)(void *),void * arg)1456 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1457     void (*start)(void *), void* arg)
1458 {
1459     android_thread_id_t threadId = 0;
1460     javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1461         ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1462     return threadId;
1463 }
1464 
1465 #if 0
1466 static void quickTest(void* arg)
1467 {
1468     const char* str = (const char*) arg;
1469 
1470     printf("In quickTest: %s\n", str);
1471 }
1472 #endif
1473 
1474 #ifdef NDEBUG
1475     #define REG_JNI(name)      { name }
1476     struct RegJNIRec {
1477         int (*mProc)(JNIEnv*);
1478     };
1479 #else
1480     #define REG_JNI(name)      { name, #name }
1481     struct RegJNIRec {
1482         int (*mProc)(JNIEnv*);
1483         const char* mName;
1484     };
1485 #endif
1486 
1487 typedef void (*RegJAMProc)();
1488 
register_jni_procs(const RegJNIRec array[],size_t count,JNIEnv * env)1489 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1490 {
1491     for (size_t i = 0; i < count; i++) {
1492         if (array[i].mProc(env) < 0) {
1493 #ifndef NDEBUG
1494             ALOGD("----------!!! %s failed to load\n", array[i].mName);
1495 #endif
1496             return -1;
1497         }
1498     }
1499     return 0;
1500 }
1501 
1502 static const RegJNIRec gRegJNI[] = {
1503         REG_JNI(register_com_android_internal_os_RuntimeInit),
1504         REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit),
1505         REG_JNI(register_android_os_SystemClock),
1506         REG_JNI(register_android_util_CharsetUtils),
1507         REG_JNI(register_android_util_EventLog),
1508         REG_JNI(register_android_util_Log),
1509         REG_JNI(register_android_util_MemoryIntArray),
1510         REG_JNI(register_android_app_admin_SecurityLog),
1511         REG_JNI(register_android_content_AssetManager),
1512         REG_JNI(register_android_content_StringBlock),
1513         REG_JNI(register_android_content_XmlBlock),
1514         REG_JNI(register_android_content_res_ApkAssets),
1515         REG_JNI(register_android_text_AndroidCharacter),
1516         REG_JNI(register_android_text_Hyphenator),
1517         REG_JNI(register_android_view_InputDevice),
1518         REG_JNI(register_android_view_KeyCharacterMap),
1519         REG_JNI(register_android_os_Process),
1520         REG_JNI(register_android_os_SystemProperties),
1521         REG_JNI(register_android_os_Binder),
1522         REG_JNI(register_android_os_Parcel),
1523         REG_JNI(register_android_os_PerformanceHintManager),
1524         REG_JNI(register_android_os_HidlMemory),
1525         REG_JNI(register_android_os_HidlSupport),
1526         REG_JNI(register_android_os_HwBinder),
1527         REG_JNI(register_android_os_HwBlob),
1528         REG_JNI(register_android_os_HwParcel),
1529         REG_JNI(register_android_os_HwRemoteBinder),
1530         REG_JNI(register_android_os_NativeHandle),
1531         REG_JNI(register_android_os_ServiceManager),
1532         REG_JNI(register_android_os_storage_StorageManager),
1533         REG_JNI(register_android_os_VintfObject),
1534         REG_JNI(register_android_os_VintfRuntimeInfo),
1535         REG_JNI(register_android_service_DataLoaderService),
1536         REG_JNI(register_android_view_DisplayEventReceiver),
1537         REG_JNI(register_android_view_InputApplicationHandle),
1538         REG_JNI(register_android_view_InputWindowHandle),
1539         REG_JNI(register_android_view_Surface),
1540         REG_JNI(register_android_view_SurfaceControl),
1541         REG_JNI(register_android_view_SurfaceControlFpsListener),
1542         REG_JNI(register_android_view_SurfaceControlHdrLayerInfoListener),
1543         REG_JNI(register_android_view_SurfaceSession),
1544         REG_JNI(register_android_view_CompositionSamplingListener),
1545         REG_JNI(register_android_view_TextureView),
1546         REG_JNI(register_android_view_TunnelModeEnabledListener),
1547         REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1548         REG_JNI(register_com_google_android_gles_jni_GLImpl),
1549         REG_JNI(register_android_opengl_jni_EGL14),
1550         REG_JNI(register_android_opengl_jni_EGL15),
1551         REG_JNI(register_android_opengl_jni_EGLExt),
1552         REG_JNI(register_android_opengl_jni_GLES10),
1553         REG_JNI(register_android_opengl_jni_GLES10Ext),
1554         REG_JNI(register_android_opengl_jni_GLES11),
1555         REG_JNI(register_android_opengl_jni_GLES11Ext),
1556         REG_JNI(register_android_opengl_jni_GLES20),
1557         REG_JNI(register_android_opengl_jni_GLES30),
1558         REG_JNI(register_android_opengl_jni_GLES31),
1559         REG_JNI(register_android_opengl_jni_GLES31Ext),
1560         REG_JNI(register_android_opengl_jni_GLES32),
1561         REG_JNI(register_android_graphics_classes),
1562         REG_JNI(register_android_graphics_BLASTBufferQueue),
1563         REG_JNI(register_android_graphics_GraphicBuffer),
1564         REG_JNI(register_android_graphics_SurfaceTexture),
1565         REG_JNI(register_android_database_CursorWindow),
1566         REG_JNI(register_android_database_SQLiteConnection),
1567         REG_JNI(register_android_database_SQLiteGlobal),
1568         REG_JNI(register_android_database_SQLiteDebug),
1569         REG_JNI(register_android_os_Debug),
1570         REG_JNI(register_android_os_FileObserver),
1571         REG_JNI(register_android_os_GraphicsEnvironment),
1572         REG_JNI(register_android_os_MessageQueue),
1573         REG_JNI(register_android_os_SELinux),
1574         REG_JNI(register_android_os_Trace),
1575         REG_JNI(register_android_os_UEventObserver),
1576         REG_JNI(register_android_net_LocalSocketImpl),
1577         REG_JNI(register_android_os_MemoryFile),
1578         REG_JNI(register_android_os_SharedMemory),
1579         REG_JNI(register_android_os_incremental_IncrementalManager),
1580         REG_JNI(register_com_android_internal_content_om_OverlayConfig),
1581         REG_JNI(register_com_android_internal_net_NetworkUtilsInternal),
1582         REG_JNI(register_com_android_internal_os_ClassLoaderFactory),
1583         REG_JNI(register_com_android_internal_os_Zygote),
1584         REG_JNI(register_com_android_internal_os_ZygoteCommandBuffer),
1585         REG_JNI(register_com_android_internal_os_ZygoteInit),
1586         REG_JNI(register_com_android_internal_security_VerityUtils),
1587         REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1588         REG_JNI(register_android_hardware_Camera),
1589         REG_JNI(register_android_hardware_camera2_CameraMetadata),
1590         REG_JNI(register_android_hardware_camera2_DngCreator),
1591         REG_JNI(register_android_hardware_camera2_impl_CameraExtensionJpegProcessor),
1592         REG_JNI(register_android_hardware_camera2_utils_SurfaceUtils),
1593         REG_JNI(register_android_hardware_display_DisplayManagerGlobal),
1594         REG_JNI(register_android_hardware_HardwareBuffer),
1595         REG_JNI(register_android_hardware_SensorManager),
1596         REG_JNI(register_android_hardware_SerialPort),
1597         REG_JNI(register_android_hardware_UsbDevice),
1598         REG_JNI(register_android_hardware_UsbDeviceConnection),
1599         REG_JNI(register_android_hardware_UsbRequest),
1600         REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1601         REG_JNI(register_android_media_AudioDeviceAttributes),
1602         REG_JNI(register_android_media_AudioEffectDescriptor),
1603         REG_JNI(register_android_media_AudioSystem),
1604         REG_JNI(register_android_media_AudioRecord),
1605         REG_JNI(register_android_media_AudioTrack),
1606         REG_JNI(register_android_media_AudioAttributes),
1607         REG_JNI(register_android_media_AudioProductStrategies),
1608         REG_JNI(register_android_media_AudioVolumeGroups),
1609         REG_JNI(register_android_media_AudioVolumeGroupChangeHandler),
1610         REG_JNI(register_android_media_MediaMetrics),
1611         REG_JNI(register_android_media_MicrophoneInfo),
1612         REG_JNI(register_android_media_RemoteDisplay),
1613         REG_JNI(register_android_media_ToneGenerator),
1614         REG_JNI(register_android_media_midi),
1615 
1616         REG_JNI(register_android_opengl_classes),
1617         REG_JNI(register_android_server_NetworkManagementSocketTagger),
1618         REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1619         REG_JNI(register_android_backup_BackupDataInput),
1620         REG_JNI(register_android_backup_BackupDataOutput),
1621         REG_JNI(register_android_backup_FileBackupHelperBase),
1622         REG_JNI(register_android_backup_BackupHelperDispatcher),
1623         REG_JNI(register_android_app_backup_FullBackup),
1624         REG_JNI(register_android_app_Activity),
1625         REG_JNI(register_android_app_ActivityThread),
1626         REG_JNI(register_android_app_NativeActivity),
1627         REG_JNI(register_android_util_jar_StrictJarFile),
1628         REG_JNI(register_android_view_InputChannel),
1629         REG_JNI(register_android_view_InputEventReceiver),
1630         REG_JNI(register_android_view_InputEventSender),
1631         REG_JNI(register_android_view_InputQueue),
1632         REG_JNI(register_android_view_KeyEvent),
1633         REG_JNI(register_android_view_MotionEvent),
1634         REG_JNI(register_android_view_PointerIcon),
1635         REG_JNI(register_android_view_VelocityTracker),
1636         REG_JNI(register_android_view_VerifiedKeyEvent),
1637         REG_JNI(register_android_view_VerifiedMotionEvent),
1638 
1639         REG_JNI(register_android_content_res_ObbScanner),
1640         REG_JNI(register_android_content_res_Configuration),
1641 
1642         REG_JNI(register_android_animation_PropertyValuesHolder),
1643         REG_JNI(register_android_security_Scrypt),
1644         REG_JNI(register_com_android_internal_content_F2fsUtils),
1645         REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1646         REG_JNI(register_com_android_internal_os_DmabufInfoReader),
1647         REG_JNI(register_com_android_internal_os_FuseAppLoop),
1648         REG_JNI(register_com_android_internal_os_KernelCpuBpfTracking),
1649         REG_JNI(register_com_android_internal_os_KernelCpuTotalBpfMapReader),
1650         REG_JNI(register_com_android_internal_os_KernelCpuUidBpfMapReader),
1651         REG_JNI(register_com_android_internal_os_KernelSingleProcessCpuThreadReader),
1652         REG_JNI(register_com_android_internal_os_KernelSingleUidTimeReader),
1653 
1654         REG_JNI(register_android_window_WindowInfosListener),
1655 };
1656 
1657 /*
1658  * Register android native functions with the VM.
1659  */
startReg(JNIEnv * env)1660 /*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1661 {
1662     ATRACE_NAME("RegisterAndroidNatives");
1663     /*
1664      * This hook causes all future threads created in this process to be
1665      * attached to the JavaVM.  (This needs to go away in favor of JNI
1666      * Attach calls.)
1667      */
1668     androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1669 
1670     ALOGV("--- registering native functions ---\n");
1671 
1672     /*
1673      * Every "register" function calls one or more things that return
1674      * a local reference (e.g. FindClass).  Because we haven't really
1675      * started the VM yet, they're all getting stored in the base frame
1676      * and never released.  Use Push/Pop to manage the storage.
1677      */
1678     env->PushLocalFrame(200);
1679 
1680     if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1681         env->PopLocalFrame(NULL);
1682         return -1;
1683     }
1684     env->PopLocalFrame(NULL);
1685 
1686     //createJavaThread("fubar", quickTest, (void*) "hello");
1687 
1688     return 0;
1689 }
1690 
getRuntime()1691 AndroidRuntime* AndroidRuntime::getRuntime()
1692 {
1693     return gCurRuntime;
1694 }
1695 
1696 /**
1697  * Used by surface flinger's DdmConnection to register native methods from
1698  * the framework.
1699  */
registerFrameworkNatives(JNIEnv * env)1700 extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1701     return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1702 }
1703 }   // namespace android
1704