AndroidRuntime.cpp revision dafbf247ee4d0c14d501a23612115ab3a1306288 
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 LOG_TAG "AndroidRuntime"
18//#define LOG_NDEBUG 0
19
20#include <android_runtime/AndroidRuntime.h>
21#include <binder/IBinder.h>
22#include <binder/IPCThreadState.h>
23#include <binder/IServiceManager.h>
24#include <utils/Log.h>
25#include <utils/misc.h>
26#include <binder/Parcel.h>
27#include <utils/StringArray.h>
28#include <utils/threads.h>
29#include <cutils/properties.h>
30
31#include <SkGraphics.h>
32#include <SkImageDecoder.h>
33#include <SkImageRef_GlobalPool.h>
34
35#include "jni.h"
36#include "JNIHelp.h"
37#include "android_util_Binder.h"
38
39#include <stdio.h>
40#include <signal.h>
41#include <sys/stat.h>
42#include <sys/types.h>
43#include <signal.h>
44#include <dirent.h>
45#include <assert.h>
46
47
48using namespace android;
49
50extern void register_BindTest();
51
52extern int register_android_os_Binder(JNIEnv* env);
53extern int register_android_os_Process(JNIEnv* env);
54extern int register_android_graphics_Bitmap(JNIEnv*);
55extern int register_android_graphics_BitmapFactory(JNIEnv*);
56extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
57extern int register_android_graphics_Camera(JNIEnv* env);
58extern int register_android_graphics_Graphics(JNIEnv* env);
59extern int register_android_graphics_Interpolator(JNIEnv* env);
60extern int register_android_graphics_LayerRasterizer(JNIEnv*);
61extern int register_android_graphics_MaskFilter(JNIEnv* env);
62extern int register_android_graphics_Movie(JNIEnv* env);
63extern int register_android_graphics_NinePatch(JNIEnv*);
64extern int register_android_graphics_PathEffect(JNIEnv* env);
65extern int register_android_graphics_Shader(JNIEnv* env);
66extern int register_android_graphics_Typeface(JNIEnv* env);
67extern int register_android_graphics_YuvImage(JNIEnv* env);
68
69extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
70extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
71extern int register_android_opengl_jni_GLES10(JNIEnv* env);
72extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
73extern int register_android_opengl_jni_GLES11(JNIEnv* env);
74extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
75extern int register_android_opengl_jni_GLES20(JNIEnv* env);
76
77extern int register_android_hardware_Camera(JNIEnv *env);
78extern int register_android_hardware_SensorManager(JNIEnv *env);
79extern int register_android_hardware_UsbDevice(JNIEnv *env);
80extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
81extern int register_android_hardware_UsbRequest(JNIEnv *env);
82
83extern int register_android_media_AudioRecord(JNIEnv *env);
84extern int register_android_media_AudioSystem(JNIEnv *env);
85extern int register_android_media_AudioTrack(JNIEnv *env);
86extern int register_android_media_JetPlayer(JNIEnv *env);
87extern int register_android_media_ToneGenerator(JNIEnv *env);
88
89extern int register_android_util_FloatMath(JNIEnv* env);
90
91namespace android {
92
93/*
94 * JNI-based registration functions.  Note these are properly contained in
95 * namespace android.
96 */
97extern int register_android_content_AssetManager(JNIEnv* env);
98extern int register_android_util_EventLog(JNIEnv* env);
99extern int register_android_util_Log(JNIEnv* env);
100extern int register_android_content_StringBlock(JNIEnv* env);
101extern int register_android_content_XmlBlock(JNIEnv* env);
102extern int register_android_emoji_EmojiFactory(JNIEnv* env);
103extern int register_android_graphics_Canvas(JNIEnv* env);
104extern int register_android_graphics_ColorFilter(JNIEnv* env);
105extern int register_android_graphics_DrawFilter(JNIEnv* env);
106extern int register_android_graphics_Matrix(JNIEnv* env);
107extern int register_android_graphics_Paint(JNIEnv* env);
108extern int register_android_graphics_ParcelSurfaceTexture(JNIEnv* env);
109extern int register_android_graphics_Path(JNIEnv* env);
110extern int register_android_graphics_PathMeasure(JNIEnv* env);
111extern int register_android_graphics_Picture(JNIEnv*);
112extern int register_android_graphics_PorterDuff(JNIEnv* env);
113extern int register_android_graphics_Rasterizer(JNIEnv* env);
114extern int register_android_graphics_Region(JNIEnv* env);
115extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
116extern int register_android_graphics_Xfermode(JNIEnv* env);
117extern int register_android_graphics_PixelFormat(JNIEnv* env);
118extern int register_android_view_Display(JNIEnv* env);
119extern int register_android_view_GLES20Canvas(JNIEnv* env);
120extern int register_android_view_Surface(JNIEnv* env);
121extern int register_android_view_TextureView(JNIEnv* env);
122extern int register_android_database_CursorWindow(JNIEnv* env);
123extern int register_android_database_SQLiteCompiledSql(JNIEnv* env);
124extern int register_android_database_SQLiteDatabase(JNIEnv* env);
125extern int register_android_database_SQLiteDebug(JNIEnv* env);
126extern int register_android_database_SQLiteProgram(JNIEnv* env);
127extern int register_android_database_SQLiteQuery(JNIEnv* env);
128extern int register_android_database_SQLiteStatement(JNIEnv* env);
129extern int register_android_debug_JNITest(JNIEnv* env);
130extern int register_android_nio_utils(JNIEnv* env);
131extern int register_android_nfc_NdefMessage(JNIEnv *env);
132extern int register_android_nfc_NdefRecord(JNIEnv *env);
133extern int register_android_text_format_Time(JNIEnv* env);
134extern int register_android_os_Debug(JNIEnv* env);
135extern int register_android_os_MessageQueue(JNIEnv* env);
136extern int register_android_os_ParcelFileDescriptor(JNIEnv *env);
137extern int register_android_os_Power(JNIEnv *env);
138extern int register_android_os_StatFs(JNIEnv *env);
139extern int register_android_os_SystemProperties(JNIEnv *env);
140extern int register_android_os_SystemClock(JNIEnv* env);
141extern int register_android_os_FileObserver(JNIEnv *env);
142extern int register_android_os_FileUtils(JNIEnv *env);
143extern int register_android_os_UEventObserver(JNIEnv* env);
144extern int register_android_os_MemoryFile(JNIEnv* env);
145extern int register_android_net_LocalSocketImpl(JNIEnv* env);
146extern int register_android_net_NetworkUtils(JNIEnv* env);
147extern int register_android_net_TrafficStats(JNIEnv* env);
148extern int register_android_net_wifi_WifiManager(JNIEnv* env);
149extern int register_android_text_AndroidCharacter(JNIEnv *env);
150extern int register_android_text_AndroidBidi(JNIEnv *env);
151extern int register_android_text_KeyCharacterMap(JNIEnv *env);
152extern int register_android_opengl_classes(JNIEnv *env);
153extern int register_android_bluetooth_HeadsetBase(JNIEnv* env);
154extern int register_android_bluetooth_BluetoothAudioGateway(JNIEnv* env);
155extern int register_android_bluetooth_BluetoothSocket(JNIEnv *env);
156extern int register_android_server_BluetoothService(JNIEnv* env);
157extern int register_android_server_BluetoothEventLoop(JNIEnv *env);
158extern int register_android_server_BluetoothA2dpService(JNIEnv* env);
159extern int register_android_server_Watchdog(JNIEnv* env);
160extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
161extern int register_com_android_internal_os_ZygoteInit(JNIEnv* env);
162extern int register_android_backup_BackupDataInput(JNIEnv *env);
163extern int register_android_backup_BackupDataOutput(JNIEnv *env);
164extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
165extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
166extern int register_android_app_backup_FullBackup(JNIEnv *env);
167extern int register_android_app_ActivityThread(JNIEnv *env);
168extern int register_android_app_NativeActivity(JNIEnv *env);
169extern int register_android_view_InputChannel(JNIEnv* env);
170extern int register_android_view_InputQueue(JNIEnv* env);
171extern int register_android_view_KeyEvent(JNIEnv* env);
172extern int register_android_view_MotionEvent(JNIEnv* env);
173extern int register_android_view_PointerIcon(JNIEnv* env);
174extern int register_android_view_VelocityTracker(JNIEnv* env);
175extern int register_android_content_res_ObbScanner(JNIEnv* env);
176extern int register_android_content_res_Configuration(JNIEnv* env);
177extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
178
179static AndroidRuntime* gCurRuntime = NULL;
180
181static void doThrow(JNIEnv* env, const char* exc, const char* msg = NULL)
182{
183    if (jniThrowException(env, exc, msg) != 0)
184        assert(false);
185}
186
187/*
188 * Code written in the Java Programming Language calls here from main().
189 */
190static void com_android_internal_os_RuntimeInit_finishInit(JNIEnv* env, jobject clazz)
191{
192    gCurRuntime->onStarted();
193}
194
195static void com_android_internal_os_RuntimeInit_zygoteInit(JNIEnv* env, jobject clazz)
196{
197    gCurRuntime->onZygoteInit();
198}
199
200static jint com_android_internal_os_RuntimeInit_isComputerOn(JNIEnv* env, jobject clazz)
201{
202    return 1;
203}
204
205static void com_android_internal_os_RuntimeInit_turnComputerOn(JNIEnv* env, jobject clazz)
206{
207}
208
209static jint com_android_internal_os_RuntimeInit_getQwertyKeyboard(JNIEnv* env, jobject clazz)
210{
211    char* value = getenv("qwerty");
212    if (value != NULL && strcmp(value, "true") == 0) {
213        return 1;
214    }
215
216    return 0;
217}
218
219/*
220 * JNI registration.
221 */
222static JNINativeMethod gMethods[] = {
223    { "finishInit", "()V",
224        (void*) com_android_internal_os_RuntimeInit_finishInit },
225    { "zygoteInitNative", "()V",
226        (void*) com_android_internal_os_RuntimeInit_zygoteInit },
227    { "isComputerOn", "()I",
228        (void*) com_android_internal_os_RuntimeInit_isComputerOn },
229    { "turnComputerOn", "()V",
230        (void*) com_android_internal_os_RuntimeInit_turnComputerOn },
231    { "getQwertyKeyboard", "()I",
232        (void*) com_android_internal_os_RuntimeInit_getQwertyKeyboard },
233};
234
235int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
236{
237    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
238        gMethods, NELEM(gMethods));
239}
240
241// ----------------------------------------------------------------------
242
243/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
244
245
246AndroidRuntime::AndroidRuntime()
247{
248    SkGraphics::Init();
249    // this sets our preference for 16bit images during decode
250    // in case the src is opaque and 24bit
251    SkImageDecoder::SetDeviceConfig(SkBitmap::kRGB_565_Config);
252    // This cache is shared between browser native images, and java "purgeable"
253    // bitmaps. This globalpool is for images that do not either use the java
254    // heap, or are not backed by ashmem. See BitmapFactory.cpp for the key
255    // java call site.
256    SkImageRef_GlobalPool::SetRAMBudget(512 * 1024);
257    // There is also a global font cache, but its budget is specified in code
258    // see SkFontHost_android.cpp
259
260    // Pre-allocate enough space to hold a fair number of options.
261    mOptions.setCapacity(20);
262
263    assert(gCurRuntime == NULL);        // one per process
264    gCurRuntime = this;
265}
266
267AndroidRuntime::~AndroidRuntime()
268{
269    SkGraphics::Term();
270}
271
272/*
273 * Register native methods using JNI.
274 */
275/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
276    const char* className, const JNINativeMethod* gMethods, int numMethods)
277{
278    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
279}
280
281status_t AndroidRuntime::callMain(const char* className,
282    jclass clazz, int argc, const char* const argv[])
283{
284    JNIEnv* env;
285    jmethodID methodId;
286
287    LOGD("Calling main entry %s", className);
288
289    env = getJNIEnv();
290    if (clazz == NULL || env == NULL) {
291        return UNKNOWN_ERROR;
292    }
293
294    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
295    if (methodId == NULL) {
296        LOGE("ERROR: could not find method %s.main(String[])\n", className);
297        return UNKNOWN_ERROR;
298    }
299
300    /*
301     * We want to call main() with a String array with our arguments in it.
302     * Create an array and populate it.
303     */
304    jclass stringClass;
305    jobjectArray strArray;
306
307    stringClass = env->FindClass("java/lang/String");
308    strArray = env->NewObjectArray(argc, stringClass, NULL);
309
310    for (int i = 0; i < argc; i++) {
311        jstring argStr = env->NewStringUTF(argv[i]);
312        env->SetObjectArrayElement(strArray, i, argStr);
313    }
314
315    env->CallStaticVoidMethod(clazz, methodId, strArray);
316    return NO_ERROR;
317}
318
319/*
320 * The VM calls this through the "exit" hook.
321 */
322static void runtime_exit(int code)
323{
324    gCurRuntime->onExit(code);
325    exit(code);
326}
327
328/*
329 * The VM calls this through the "vfprintf" hook.
330 *
331 * We ignore "fp" and just write the results to the log file.
332 */
333static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
334{
335    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
336}
337
338/**
339 * The VM calls this when mutex contention debugging is enabled to
340 * determine whether or not the blocked thread was a "sensitive thread"
341 * for user responsiveness/smoothess.
342 *
343 * Our policy for this is whether or not we're tracing any StrictMode
344 * events on this thread (which we might've inherited via Binder calls
345 * into us)
346 */
347static bool runtime_isSensitiveThread() {
348    IPCThreadState* state = IPCThreadState::selfOrNull();
349    return state && state->getStrictModePolicy() != 0;
350}
351
352
353/**
354 * Add VM arguments to the to-be-executed VM
355 * Stops at first non '-' argument (also stops at an argument of '--')
356 * Returns the number of args consumed
357 */
358int AndroidRuntime::addVmArguments(int argc, const char* const argv[])
359{
360    int i;
361
362    for (i = 0; i<argc; i++) {
363        if (argv[i][0] != '-') {
364            return i;
365        }
366        if (argv[i][1] == '-' && argv[i][2] == 0) {
367            return i+1;
368        }
369
370        JavaVMOption opt;
371        memset(&opt, 0, sizeof(opt));
372        opt.optionString = (char*)argv[i];
373        mOptions.add(opt);
374    }
375    return i;
376}
377
378static int hasDir(const char* dir)
379{
380    struct stat s;
381    int res = stat(dir, &s);
382    if (res == 0) {
383        return S_ISDIR(s.st_mode);
384    }
385    return 0;
386}
387
388/*
389 * We just want failed write() calls to just return with an error.
390 */
391static void blockSigpipe()
392{
393    sigset_t mask;
394
395    sigemptyset(&mask);
396    sigaddset(&mask, SIGPIPE);
397    if (sigprocmask(SIG_BLOCK, &mask, NULL) != 0)
398        LOGW("WARNING: SIGPIPE not blocked\n");
399}
400
401/*
402 * Read the persistent locale.
403 */
404static void readLocale(char* language, char* region)
405{
406    char propLang[PROPERTY_VALUE_MAX], propRegn[PROPERTY_VALUE_MAX];
407
408    property_get("persist.sys.language", propLang, "");
409    property_get("persist.sys.country", propRegn, "");
410    if (*propLang == 0 && *propRegn == 0) {
411        /* Set to ro properties, default is en_US */
412        property_get("ro.product.locale.language", propLang, "en");
413        property_get("ro.product.locale.region", propRegn, "US");
414    }
415    strncat(language, propLang, 2);
416    strncat(region, propRegn, 2);
417    //LOGD("language=%s region=%s\n", language, region);
418}
419
420/*
421 * Parse a property containing space-separated options that should be
422 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
423 *
424 * This will cut up "extraOptsBuf" as we chop it into individual options.
425 *
426 * Adds the strings, if any, to mOptions.
427 */
428void AndroidRuntime::parseExtraOpts(char* extraOptsBuf)
429{
430    JavaVMOption opt;
431    char* start;
432    char* end;
433
434    memset(&opt, 0, sizeof(opt));
435    start = extraOptsBuf;
436    while (*start != '\0') {
437        while (*start == ' ')                   /* skip leading whitespace */
438            start++;
439        if (*start == '\0')                     /* was trailing ws, bail */
440            break;
441
442        end = start+1;
443        while (*end != ' ' && *end != '\0')     /* find end of token */
444            end++;
445        if (*end == ' ')
446            *end++ = '\0';          /* mark end, advance to indicate more */
447
448        opt.optionString = start;
449        mOptions.add(opt);
450        start = end;
451    }
452}
453
454/*
455 * Start the Dalvik Virtual Machine.
456 *
457 * Various arguments, most determined by system properties, are passed in.
458 * The "mOptions" vector is updated.
459 *
460 * Returns 0 on success.
461 */
462int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv)
463{
464    int result = -1;
465    JavaVMInitArgs initArgs;
466    JavaVMOption opt;
467    char propBuf[PROPERTY_VALUE_MAX];
468    char stackTraceFileBuf[PROPERTY_VALUE_MAX];
469    char dexoptFlagsBuf[PROPERTY_VALUE_MAX];
470    char enableAssertBuf[sizeof("-ea:")-1 + PROPERTY_VALUE_MAX];
471    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
472    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
473    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
474    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
475    char extraOptsBuf[PROPERTY_VALUE_MAX];
476    char* stackTraceFile = NULL;
477    bool checkJni = false;
478    bool checkDexSum = false;
479    bool logStdio = false;
480    enum {
481      kEMDefault,
482      kEMIntPortable,
483      kEMIntFast,
484#if defined(WITH_JIT)
485      kEMJitCompiler,
486#endif
487    } executionMode = kEMDefault;
488
489
490    property_get("dalvik.vm.checkjni", propBuf, "");
491    if (strcmp(propBuf, "true") == 0) {
492        checkJni = true;
493    } else if (strcmp(propBuf, "false") != 0) {
494        /* property is neither true nor false; fall back on kernel parameter */
495        property_get("ro.kernel.android.checkjni", propBuf, "");
496        if (propBuf[0] == '1') {
497            checkJni = true;
498        }
499    }
500
501    property_get("dalvik.vm.execution-mode", propBuf, "");
502    if (strcmp(propBuf, "int:portable") == 0) {
503        executionMode = kEMIntPortable;
504    } else if (strcmp(propBuf, "int:fast") == 0) {
505        executionMode = kEMIntFast;
506#if defined(WITH_JIT)
507    } else if (strcmp(propBuf, "int:jit") == 0) {
508        executionMode = kEMJitCompiler;
509#endif
510    }
511
512    property_get("dalvik.vm.stack-trace-file", stackTraceFileBuf, "");
513
514    property_get("dalvik.vm.check-dex-sum", propBuf, "");
515    if (strcmp(propBuf, "true") == 0) {
516        checkDexSum = true;
517    }
518
519    property_get("log.redirect-stdio", propBuf, "");
520    if (strcmp(propBuf, "true") == 0) {
521        logStdio = true;
522    }
523
524    strcpy(enableAssertBuf, "-ea:");
525    property_get("dalvik.vm.enableassertions", enableAssertBuf+4, "");
526
527    strcpy(jniOptsBuf, "-Xjniopts:");
528    property_get("dalvik.vm.jniopts", jniOptsBuf+10, "");
529
530    /* route exit() to our handler */
531    opt.extraInfo = (void*) runtime_exit;
532    opt.optionString = "exit";
533    mOptions.add(opt);
534
535    /* route fprintf() to our handler */
536    opt.extraInfo = (void*) runtime_vfprintf;
537    opt.optionString = "vfprintf";
538    mOptions.add(opt);
539
540    /* register the framework-specific "is sensitive thread" hook */
541    opt.extraInfo = (void*) runtime_isSensitiveThread;
542    opt.optionString = "sensitiveThread";
543    mOptions.add(opt);
544
545    opt.extraInfo = NULL;
546
547    /* enable verbose; standard options are { jni, gc, class } */
548    //options[curOpt++].optionString = "-verbose:jni";
549    opt.optionString = "-verbose:gc";
550    mOptions.add(opt);
551    //options[curOpt++].optionString = "-verbose:class";
552
553    /*
554     * The default starting and maximum size of the heap.  Larger
555     * values should be specified in a product property override.
556     */
557    strcpy(heapstartsizeOptsBuf, "-Xms");
558    property_get("dalvik.vm.heapstartsize", heapstartsizeOptsBuf+4, "4m");
559    opt.optionString = heapstartsizeOptsBuf;
560    mOptions.add(opt);
561    strcpy(heapsizeOptsBuf, "-Xmx");
562    property_get("dalvik.vm.heapsize", heapsizeOptsBuf+4, "16m");
563    opt.optionString = heapsizeOptsBuf;
564    mOptions.add(opt);
565
566    strcpy(heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
567    property_get("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf+20, "");
568    if (heapgrowthlimitOptsBuf[20] != '\0') {
569        opt.optionString = heapgrowthlimitOptsBuf;
570        mOptions.add(opt);
571    }
572
573    /*
574     * Enable or disable dexopt features, such as bytecode verification and
575     * calculation of register maps for precise GC.
576     */
577    property_get("dalvik.vm.dexopt-flags", dexoptFlagsBuf, "");
578    if (dexoptFlagsBuf[0] != '\0') {
579        const char* opc;
580        const char* val;
581
582        opc = strstr(dexoptFlagsBuf, "v=");     /* verification */
583        if (opc != NULL) {
584            switch (*(opc+2)) {
585            case 'n':   val = "-Xverify:none";      break;
586            case 'r':   val = "-Xverify:remote";    break;
587            case 'a':   val = "-Xverify:all";       break;
588            default:    val = NULL;                 break;
589            }
590
591            if (val != NULL) {
592                opt.optionString = val;
593                mOptions.add(opt);
594            }
595        }
596
597        opc = strstr(dexoptFlagsBuf, "o=");     /* optimization */
598        if (opc != NULL) {
599            switch (*(opc+2)) {
600            case 'n':   val = "-Xdexopt:none";      break;
601            case 'v':   val = "-Xdexopt:verified";  break;
602            case 'a':   val = "-Xdexopt:all";       break;
603            case 'f':   val = "-Xdexopt:full";      break;
604            default:    val = NULL;                 break;
605            }
606
607            if (val != NULL) {
608                opt.optionString = val;
609                mOptions.add(opt);
610            }
611        }
612
613        opc = strstr(dexoptFlagsBuf, "m=y");    /* register map */
614        if (opc != NULL) {
615            opt.optionString = "-Xgenregmap";
616            mOptions.add(opt);
617
618            /* turn on precise GC while we're at it */
619            opt.optionString = "-Xgc:precise";
620            mOptions.add(opt);
621        }
622    }
623
624    /* enable debugging; set suspend=y to pause during VM init */
625    /* use android ADB transport */
626    opt.optionString =
627        "-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y";
628    mOptions.add(opt);
629
630    char enableDPBuf[sizeof("-Xdeadlockpredict:") + PROPERTY_VALUE_MAX];
631    property_get("dalvik.vm.deadlock-predict", propBuf, "");
632    if (strlen(propBuf) > 0) {
633        strcpy(enableDPBuf, "-Xdeadlockpredict:");
634        strcat(enableDPBuf, propBuf);
635        opt.optionString = enableDPBuf;
636        mOptions.add(opt);
637    }
638
639    LOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
640    if (checkJni) {
641        /* extended JNI checking */
642        opt.optionString = "-Xcheck:jni";
643        mOptions.add(opt);
644
645        /* set a cap on JNI global references */
646        opt.optionString = "-Xjnigreflimit:2000";
647        mOptions.add(opt);
648
649        /* with -Xcheck:jni, this provides a JNI function call trace */
650        //opt.optionString = "-verbose:jni";
651        //mOptions.add(opt);
652    }
653
654    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:") + sizeof(propBuf)];
655    property_get("dalvik.vm.lockprof.threshold", propBuf, "");
656    if (strlen(propBuf) > 0) {
657      strcpy(lockProfThresholdBuf, "-Xlockprofthreshold:");
658      strcat(lockProfThresholdBuf, propBuf);
659      opt.optionString = lockProfThresholdBuf;
660      mOptions.add(opt);
661    }
662
663#if defined(WITH_JIT)
664    /* Force interpreter-only mode for selected opcodes. Eg "1-0a,3c,f1-ff" */
665    char jitOpBuf[sizeof("-Xjitop:") + PROPERTY_VALUE_MAX];
666    property_get("dalvik.vm.jit.op", propBuf, "");
667    if (strlen(propBuf) > 0) {
668        strcpy(jitOpBuf, "-Xjitop:");
669        strcat(jitOpBuf, propBuf);
670        opt.optionString = jitOpBuf;
671        mOptions.add(opt);
672    }
673
674    /* Force interpreter-only mode for selected methods */
675    char jitMethodBuf[sizeof("-Xjitmethod:") + PROPERTY_VALUE_MAX];
676    property_get("dalvik.vm.jit.method", propBuf, "");
677    if (strlen(propBuf) > 0) {
678        strcpy(jitMethodBuf, "-Xjitmethod:");
679        strcat(jitMethodBuf, propBuf);
680        opt.optionString = jitMethodBuf;
681        mOptions.add(opt);
682    }
683#endif
684
685    if (executionMode == kEMIntPortable) {
686        opt.optionString = "-Xint:portable";
687        mOptions.add(opt);
688    } else if (executionMode == kEMIntFast) {
689        opt.optionString = "-Xint:fast";
690        mOptions.add(opt);
691#if defined(WITH_JIT)
692    } else if (executionMode == kEMJitCompiler) {
693        opt.optionString = "-Xint:jit";
694        mOptions.add(opt);
695#endif
696    }
697
698    if (checkDexSum) {
699        /* perform additional DEX checksum tests */
700        opt.optionString = "-Xcheckdexsum";
701        mOptions.add(opt);
702    }
703
704    if (logStdio) {
705        /* convert stdout/stderr to log messages */
706        opt.optionString = "-Xlog-stdio";
707        mOptions.add(opt);
708    }
709
710    if (enableAssertBuf[4] != '\0') {
711        /* accept "all" to mean "all classes and packages" */
712        if (strcmp(enableAssertBuf+4, "all") == 0)
713            enableAssertBuf[3] = '\0';
714        LOGI("Assertions enabled: '%s'\n", enableAssertBuf);
715        opt.optionString = enableAssertBuf;
716        mOptions.add(opt);
717    } else {
718        LOGV("Assertions disabled\n");
719    }
720
721    if (jniOptsBuf[10] != '\0') {
722        LOGI("JNI options: '%s'\n", jniOptsBuf);
723        opt.optionString = jniOptsBuf;
724        mOptions.add(opt);
725    }
726
727    if (stackTraceFileBuf[0] != '\0') {
728        static const char* stfOptName = "-Xstacktracefile:";
729
730        stackTraceFile = (char*) malloc(strlen(stfOptName) +
731            strlen(stackTraceFileBuf) +1);
732        strcpy(stackTraceFile, stfOptName);
733        strcat(stackTraceFile, stackTraceFileBuf);
734        opt.optionString = stackTraceFile;
735        mOptions.add(opt);
736    }
737
738    /* extra options; parse this late so it overrides others */
739    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
740    parseExtraOpts(extraOptsBuf);
741
742    /* Set the properties for locale */
743    {
744        char langOption[sizeof("-Duser.language=") + 3];
745        char regionOption[sizeof("-Duser.region=") + 3];
746        strcpy(langOption, "-Duser.language=");
747        strcpy(regionOption, "-Duser.region=");
748        readLocale(langOption, regionOption);
749        opt.extraInfo = NULL;
750        opt.optionString = langOption;
751        mOptions.add(opt);
752        opt.optionString = regionOption;
753        mOptions.add(opt);
754    }
755
756    /*
757     * We don't have /tmp on the device, but we often have an SD card.  Apps
758     * shouldn't use this, but some test suites might want to exercise it.
759     */
760    opt.optionString = "-Djava.io.tmpdir=/sdcard";
761    mOptions.add(opt);
762
763    initArgs.version = JNI_VERSION_1_4;
764    initArgs.options = mOptions.editArray();
765    initArgs.nOptions = mOptions.size();
766    initArgs.ignoreUnrecognized = JNI_FALSE;
767
768    /*
769     * Initialize the VM.
770     *
771     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
772     * If this call succeeds, the VM is ready, and we can start issuing
773     * JNI calls.
774     */
775    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
776        LOGE("JNI_CreateJavaVM failed\n");
777        goto bail;
778    }
779
780    result = 0;
781
782bail:
783    free(stackTraceFile);
784    return result;
785}
786
787char* AndroidRuntime::toSlashClassName(const char* className)
788{
789    char* result = strdup(className);
790    for (char* cp = result; *cp != '\0'; cp++) {
791        if (*cp == '.') {
792            *cp = '/';
793        }
794    }
795    return result;
796}
797
798/*
799 * Start the Android runtime.  This involves starting the virtual machine
800 * and calling the "static void main(String[] args)" method in the class
801 * named by "className".
802 *
803 * Passes the main function two arguments, the class name and the specified
804 * options string.
805 */
806void AndroidRuntime::start(const char* className, const char* options)
807{
808    LOGD("\n>>>>>> AndroidRuntime START %s <<<<<<\n",
809            className != NULL ? className : "(unknown)");
810
811    blockSigpipe();
812
813    /*
814     * 'startSystemServer == true' means runtime is obsolete and not run from
815     * init.rc anymore, so we print out the boot start event here.
816     */
817    if (strcmp(options, "start-system-server") == 0) {
818        /* track our progress through the boot sequence */
819        const int LOG_BOOT_PROGRESS_START = 3000;
820        LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,
821                       ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
822    }
823
824    const char* rootDir = getenv("ANDROID_ROOT");
825    if (rootDir == NULL) {
826        rootDir = "/system";
827        if (!hasDir("/system")) {
828            LOG_FATAL("No root directory specified, and /android does not exist.");
829            return;
830        }
831        setenv("ANDROID_ROOT", rootDir, 1);
832    }
833
834    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
835    //LOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
836
837    /* start the virtual machine */
838    JNIEnv* env;
839    if (startVm(&mJavaVM, &env) != 0) {
840        return;
841    }
842    onVmCreated(env);
843
844    /*
845     * Register android functions.
846     */
847    if (startReg(env) < 0) {
848        LOGE("Unable to register all android natives\n");
849        return;
850    }
851
852    /*
853     * We want to call main() with a String array with arguments in it.
854     * At present we have two arguments, the class name and an option string.
855     * Create an array to hold them.
856     */
857    jclass stringClass;
858    jobjectArray strArray;
859    jstring classNameStr;
860    jstring optionsStr;
861
862    stringClass = env->FindClass("java/lang/String");
863    assert(stringClass != NULL);
864    strArray = env->NewObjectArray(2, stringClass, NULL);
865    assert(strArray != NULL);
866    classNameStr = env->NewStringUTF(className);
867    assert(classNameStr != NULL);
868    env->SetObjectArrayElement(strArray, 0, classNameStr);
869    optionsStr = env->NewStringUTF(options);
870    env->SetObjectArrayElement(strArray, 1, optionsStr);
871
872    /*
873     * Start VM.  This thread becomes the main thread of the VM, and will
874     * not return until the VM exits.
875     */
876    char* slashClassName = toSlashClassName(className);
877    jclass startClass = env->FindClass(slashClassName);
878    if (startClass == NULL) {
879        LOGE("JavaVM unable to locate class '%s'\n", slashClassName);
880        /* keep going */
881    } else {
882        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
883            "([Ljava/lang/String;)V");
884        if (startMeth == NULL) {
885            LOGE("JavaVM unable to find main() in '%s'\n", className);
886            /* keep going */
887        } else {
888            env->CallStaticVoidMethod(startClass, startMeth, strArray);
889
890#if 0
891            if (env->ExceptionCheck())
892                threadExitUncaughtException(env);
893#endif
894        }
895    }
896    free(slashClassName);
897
898    LOGD("Shutting down VM\n");
899    if (mJavaVM->DetachCurrentThread() != JNI_OK)
900        LOGW("Warning: unable to detach main thread\n");
901    if (mJavaVM->DestroyJavaVM() != 0)
902        LOGW("Warning: VM did not shut down cleanly\n");
903}
904
905void AndroidRuntime::onExit(int code)
906{
907    LOGV("AndroidRuntime onExit calling exit(%d)", code);
908    exit(code);
909}
910
911void AndroidRuntime::onVmCreated(JNIEnv* env)
912{
913    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
914}
915
916/*
917 * Get the JNIEnv pointer for this thread.
918 *
919 * Returns NULL if the slot wasn't allocated or populated.
920 */
921/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
922{
923    JNIEnv* env;
924    JavaVM* vm = AndroidRuntime::getJavaVM();
925    assert(vm != NULL);
926
927    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
928        return NULL;
929    return env;
930}
931
932/*
933 * Makes the current thread visible to the VM.
934 *
935 * The JNIEnv pointer returned is only valid for the current thread, and
936 * thus must be tucked into thread-local storage.
937 */
938static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
939{
940    JavaVMAttachArgs args;
941    JavaVM* vm;
942    jint result;
943
944    vm = AndroidRuntime::getJavaVM();
945    assert(vm != NULL);
946
947    args.version = JNI_VERSION_1_4;
948    args.name = (char*) threadName;
949    args.group = NULL;
950
951    result = vm->AttachCurrentThread(pEnv, (void*) &args);
952    if (result != JNI_OK)
953        LOGI("NOTE: attach of thread '%s' failed\n", threadName);
954
955    return result;
956}
957
958/*
959 * Detach the current thread from the set visible to the VM.
960 */
961static int javaDetachThread(void)
962{
963    JavaVM* vm;
964    jint result;
965
966    vm = AndroidRuntime::getJavaVM();
967    assert(vm != NULL);
968
969    result = vm->DetachCurrentThread();
970    if (result != JNI_OK)
971        LOGE("ERROR: thread detach failed\n");
972    return result;
973}
974
975/*
976 * When starting a native thread that will be visible from the VM, we
977 * bounce through this to get the right attach/detach action.
978 * Note that this function calls free(args)
979 */
980/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
981    void* start = ((void**)args)[0];
982    void* userData = ((void **)args)[1];
983    char* name = (char*) ((void **)args)[2];        // we own this storage
984    free(args);
985    JNIEnv* env;
986    int result;
987
988    /* hook us into the VM */
989    if (javaAttachThread(name, &env) != JNI_OK)
990        return -1;
991
992    /* start the thread running */
993    result = (*(android_thread_func_t)start)(userData);
994
995    /* unhook us */
996    javaDetachThread();
997    free(name);
998
999    return result;
1000}
1001
1002/*
1003 * This is invoked from androidCreateThreadEtc() via the callback
1004 * set with androidSetCreateThreadFunc().
1005 *
1006 * We need to create the new thread in such a way that it gets hooked
1007 * into the VM before it really starts executing.
1008 */
1009/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1010                                android_thread_func_t entryFunction,
1011                                void* userData,
1012                                const char* threadName,
1013                                int32_t threadPriority,
1014                                size_t threadStackSize,
1015                                android_thread_id_t* threadId)
1016{
1017    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1018    int result;
1019
1020    assert(threadName != NULL);
1021
1022    args[0] = (void*) entryFunction;
1023    args[1] = userData;
1024    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1025
1026    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1027        threadName, threadPriority, threadStackSize, threadId);
1028    return result;
1029}
1030
1031/*
1032 * Create a thread that is visible from the VM.
1033 *
1034 * This is called from elsewhere in the library.
1035 */
1036/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1037    void (*start)(void *), void* arg)
1038{
1039    android_thread_id_t threadId = 0;
1040    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1041        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1042    return threadId;
1043}
1044
1045#if 0
1046static void quickTest(void* arg)
1047{
1048    const char* str = (const char*) arg;
1049
1050    printf("In quickTest: %s\n", str);
1051}
1052#endif
1053
1054#ifdef NDEBUG
1055    #define REG_JNI(name)      { name }
1056    struct RegJNIRec {
1057        int (*mProc)(JNIEnv*);
1058    };
1059#else
1060    #define REG_JNI(name)      { name, #name }
1061    struct RegJNIRec {
1062        int (*mProc)(JNIEnv*);
1063        const char* mName;
1064    };
1065#endif
1066
1067typedef void (*RegJAMProc)();
1068
1069static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1070{
1071    for (size_t i = 0; i < count; i++) {
1072        if (array[i].mProc(env) < 0) {
1073#ifndef NDEBUG
1074            LOGD("----------!!! %s failed to load\n", array[i].mName);
1075#endif
1076            return -1;
1077        }
1078    }
1079    return 0;
1080}
1081
1082static void register_jam_procs(const RegJAMProc array[], size_t count)
1083{
1084    for (size_t i = 0; i < count; i++) {
1085        array[i]();
1086    }
1087}
1088
1089static const RegJNIRec gRegJNI[] = {
1090    REG_JNI(register_android_debug_JNITest),
1091    REG_JNI(register_com_android_internal_os_RuntimeInit),
1092    REG_JNI(register_android_os_SystemClock),
1093    REG_JNI(register_android_util_EventLog),
1094    REG_JNI(register_android_util_Log),
1095    REG_JNI(register_android_util_FloatMath),
1096    REG_JNI(register_android_text_format_Time),
1097    REG_JNI(register_android_content_AssetManager),
1098    REG_JNI(register_android_content_StringBlock),
1099    REG_JNI(register_android_content_XmlBlock),
1100    REG_JNI(register_android_emoji_EmojiFactory),
1101    REG_JNI(register_android_text_AndroidCharacter),
1102    REG_JNI(register_android_text_AndroidBidi),
1103    REG_JNI(register_android_text_KeyCharacterMap),
1104    REG_JNI(register_android_os_Process),
1105    REG_JNI(register_android_os_SystemProperties),
1106    REG_JNI(register_android_os_Binder),
1107    REG_JNI(register_android_view_Display),
1108    REG_JNI(register_android_nio_utils),
1109    REG_JNI(register_android_graphics_PixelFormat),
1110    REG_JNI(register_android_graphics_Graphics),
1111    REG_JNI(register_android_view_GLES20Canvas),
1112    REG_JNI(register_android_view_Surface),
1113    REG_JNI(register_android_view_TextureView),
1114    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1115    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1116    REG_JNI(register_android_opengl_jni_GLES10),
1117    REG_JNI(register_android_opengl_jni_GLES10Ext),
1118    REG_JNI(register_android_opengl_jni_GLES11),
1119    REG_JNI(register_android_opengl_jni_GLES11Ext),
1120    REG_JNI(register_android_opengl_jni_GLES20),
1121
1122    REG_JNI(register_android_graphics_Bitmap),
1123    REG_JNI(register_android_graphics_BitmapFactory),
1124    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1125    REG_JNI(register_android_graphics_Camera),
1126    REG_JNI(register_android_graphics_Canvas),
1127    REG_JNI(register_android_graphics_ColorFilter),
1128    REG_JNI(register_android_graphics_DrawFilter),
1129    REG_JNI(register_android_graphics_Interpolator),
1130    REG_JNI(register_android_graphics_LayerRasterizer),
1131    REG_JNI(register_android_graphics_MaskFilter),
1132    REG_JNI(register_android_graphics_Matrix),
1133    REG_JNI(register_android_graphics_Movie),
1134    REG_JNI(register_android_graphics_NinePatch),
1135    REG_JNI(register_android_graphics_Paint),
1136    REG_JNI(register_android_graphics_ParcelSurfaceTexture),
1137    REG_JNI(register_android_graphics_Path),
1138    REG_JNI(register_android_graphics_PathMeasure),
1139    REG_JNI(register_android_graphics_PathEffect),
1140    REG_JNI(register_android_graphics_Picture),
1141    REG_JNI(register_android_graphics_PorterDuff),
1142    REG_JNI(register_android_graphics_Rasterizer),
1143    REG_JNI(register_android_graphics_Region),
1144    REG_JNI(register_android_graphics_Shader),
1145    REG_JNI(register_android_graphics_SurfaceTexture),
1146    REG_JNI(register_android_graphics_Typeface),
1147    REG_JNI(register_android_graphics_Xfermode),
1148    REG_JNI(register_android_graphics_YuvImage),
1149    REG_JNI(register_com_android_internal_graphics_NativeUtils),
1150
1151    REG_JNI(register_android_database_CursorWindow),
1152    REG_JNI(register_android_database_SQLiteCompiledSql),
1153    REG_JNI(register_android_database_SQLiteDatabase),
1154    REG_JNI(register_android_database_SQLiteDebug),
1155    REG_JNI(register_android_database_SQLiteProgram),
1156    REG_JNI(register_android_database_SQLiteQuery),
1157    REG_JNI(register_android_database_SQLiteStatement),
1158    REG_JNI(register_android_os_Debug),
1159    REG_JNI(register_android_os_FileObserver),
1160    REG_JNI(register_android_os_FileUtils),
1161    REG_JNI(register_android_os_MessageQueue),
1162    REG_JNI(register_android_os_ParcelFileDescriptor),
1163    REG_JNI(register_android_os_Power),
1164    REG_JNI(register_android_os_StatFs),
1165    REG_JNI(register_android_os_UEventObserver),
1166    REG_JNI(register_android_net_LocalSocketImpl),
1167    REG_JNI(register_android_net_NetworkUtils),
1168    REG_JNI(register_android_net_TrafficStats),
1169    REG_JNI(register_android_net_wifi_WifiManager),
1170    REG_JNI(register_android_nfc_NdefMessage),
1171    REG_JNI(register_android_nfc_NdefRecord),
1172    REG_JNI(register_android_os_MemoryFile),
1173    REG_JNI(register_com_android_internal_os_ZygoteInit),
1174    REG_JNI(register_android_hardware_Camera),
1175    REG_JNI(register_android_hardware_SensorManager),
1176    REG_JNI(register_android_hardware_UsbDevice),
1177    REG_JNI(register_android_hardware_UsbDeviceConnection),
1178    REG_JNI(register_android_hardware_UsbRequest),
1179    REG_JNI(register_android_media_AudioRecord),
1180    REG_JNI(register_android_media_AudioSystem),
1181    REG_JNI(register_android_media_AudioTrack),
1182    REG_JNI(register_android_media_JetPlayer),
1183    REG_JNI(register_android_media_ToneGenerator),
1184
1185    REG_JNI(register_android_opengl_classes),
1186    REG_JNI(register_android_bluetooth_HeadsetBase),
1187    REG_JNI(register_android_bluetooth_BluetoothAudioGateway),
1188    REG_JNI(register_android_bluetooth_BluetoothSocket),
1189    REG_JNI(register_android_server_BluetoothService),
1190    REG_JNI(register_android_server_BluetoothEventLoop),
1191    REG_JNI(register_android_server_BluetoothA2dpService),
1192    REG_JNI(register_android_server_Watchdog),
1193    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1194    REG_JNI(register_android_backup_BackupDataInput),
1195    REG_JNI(register_android_backup_BackupDataOutput),
1196    REG_JNI(register_android_backup_FileBackupHelperBase),
1197    REG_JNI(register_android_backup_BackupHelperDispatcher),
1198    REG_JNI(register_android_app_backup_FullBackup),
1199    REG_JNI(register_android_app_ActivityThread),
1200    REG_JNI(register_android_app_NativeActivity),
1201    REG_JNI(register_android_view_InputChannel),
1202    REG_JNI(register_android_view_InputQueue),
1203    REG_JNI(register_android_view_KeyEvent),
1204    REG_JNI(register_android_view_MotionEvent),
1205    REG_JNI(register_android_view_PointerIcon),
1206    REG_JNI(register_android_view_VelocityTracker),
1207
1208    REG_JNI(register_android_content_res_ObbScanner),
1209    REG_JNI(register_android_content_res_Configuration),
1210
1211    REG_JNI(register_android_animation_PropertyValuesHolder),
1212};
1213
1214/*
1215 * Register android native functions with the VM.
1216 */
1217/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1218{
1219    /*
1220     * This hook causes all future threads created in this process to be
1221     * attached to the JavaVM.  (This needs to go away in favor of JNI
1222     * Attach calls.)
1223     */
1224    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1225
1226    LOGV("--- registering native functions ---\n");
1227
1228    /*
1229     * Every "register" function calls one or more things that return
1230     * a local reference (e.g. FindClass).  Because we haven't really
1231     * started the VM yet, they're all getting stored in the base frame
1232     * and never released.  Use Push/Pop to manage the storage.
1233     */
1234    env->PushLocalFrame(200);
1235
1236    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1237        env->PopLocalFrame(NULL);
1238        return -1;
1239    }
1240    env->PopLocalFrame(NULL);
1241
1242    //createJavaThread("fubar", quickTest, (void*) "hello");
1243
1244    return 0;
1245}
1246
1247AndroidRuntime* AndroidRuntime::getRuntime()
1248{
1249    return gCurRuntime;
1250}
1251
1252/**
1253 * Used by WithFramework to register native functions.
1254 */
1255extern "C"
1256jint Java_com_android_internal_util_WithFramework_registerNatives(
1257        JNIEnv* env, jclass clazz) {
1258    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1259}
1260
1261/**
1262 * Used by LoadClass to register native functions.
1263 */
1264extern "C"
1265jint Java_LoadClass_registerNatives(JNIEnv* env, jclass clazz) {
1266    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1267}
1268
1269}   // namespace android
1270