AndroidRuntime.cpp revision d877efe3b12afdd84f06c180369f9d7399858f6e 
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 int register_android_os_Binder(JNIEnv* env);
51extern int register_android_os_Process(JNIEnv* env);
52extern int register_android_graphics_Bitmap(JNIEnv*);
53extern int register_android_graphics_BitmapFactory(JNIEnv*);
54extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
55extern int register_android_graphics_Camera(JNIEnv* env);
56extern int register_android_graphics_Graphics(JNIEnv* env);
57extern int register_android_graphics_Interpolator(JNIEnv* env);
58extern int register_android_graphics_LayerRasterizer(JNIEnv*);
59extern int register_android_graphics_MaskFilter(JNIEnv* env);
60extern int register_android_graphics_Movie(JNIEnv* env);
61extern int register_android_graphics_NinePatch(JNIEnv*);
62extern int register_android_graphics_PathEffect(JNIEnv* env);
63extern int register_android_graphics_Shader(JNIEnv* env);
64extern int register_android_graphics_Typeface(JNIEnv* env);
65extern int register_android_graphics_YuvImage(JNIEnv* env);
66
67extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
68extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
69extern int register_android_opengl_jni_EGL14(JNIEnv* env);
70extern int register_android_opengl_jni_GLES10(JNIEnv* env);
71extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
72extern int register_android_opengl_jni_GLES11(JNIEnv* env);
73extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
74extern int register_android_opengl_jni_GLES20(JNIEnv* env);
75extern int register_android_opengl_jni_GLES30(JNIEnv* env);
76
77extern int register_android_hardware_Camera(JNIEnv *env);
78extern int register_android_hardware_SensorManager(JNIEnv *env);
79extern int register_android_hardware_SerialPort(JNIEnv *env);
80extern int register_android_hardware_UsbDevice(JNIEnv *env);
81extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
82extern int register_android_hardware_UsbRequest(JNIEnv *env);
83
84extern int register_android_media_AudioRecord(JNIEnv *env);
85extern int register_android_media_AudioSystem(JNIEnv *env);
86extern int register_android_media_AudioTrack(JNIEnv *env);
87extern int register_android_media_JetPlayer(JNIEnv *env);
88extern int register_android_media_ToneGenerator(JNIEnv *env);
89
90extern int register_android_util_FloatMath(JNIEnv* env);
91
92namespace android {
93
94/*
95 * JNI-based registration functions.  Note these are properly contained in
96 * namespace android.
97 */
98extern int register_android_content_AssetManager(JNIEnv* env);
99extern int register_android_util_EventLog(JNIEnv* env);
100extern int register_android_util_Log(JNIEnv* env);
101extern int register_android_content_StringBlock(JNIEnv* env);
102extern int register_android_content_XmlBlock(JNIEnv* env);
103extern int register_android_emoji_EmojiFactory(JNIEnv* env);
104extern int register_android_graphics_Canvas(JNIEnv* env);
105extern int register_android_graphics_ColorFilter(JNIEnv* env);
106extern int register_android_graphics_DrawFilter(JNIEnv* env);
107extern int register_android_graphics_Matrix(JNIEnv* env);
108extern int register_android_graphics_Paint(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_DisplayEventReceiver(JNIEnv* env);
119extern int register_android_view_GLES20DisplayList(JNIEnv* env);
120extern int register_android_view_GLES20Canvas(JNIEnv* env);
121extern int register_android_view_HardwareRenderer(JNIEnv* env);
122extern int register_android_view_Surface(JNIEnv* env);
123extern int register_android_view_SurfaceControl(JNIEnv* env);
124extern int register_android_view_SurfaceSession(JNIEnv* env);
125extern int register_android_view_TextureView(JNIEnv* env);
126extern int register_android_database_CursorWindow(JNIEnv* env);
127extern int register_android_database_SQLiteConnection(JNIEnv* env);
128extern int register_android_database_SQLiteGlobal(JNIEnv* env);
129extern int register_android_database_SQLiteDebug(JNIEnv* env);
130extern int register_android_debug_JNITest(JNIEnv* env);
131extern int register_android_nio_utils(JNIEnv* env);
132extern int register_android_text_format_Time(JNIEnv* env);
133extern int register_android_os_Debug(JNIEnv* env);
134extern int register_android_os_MessageQueue(JNIEnv* env);
135extern int register_android_os_Parcel(JNIEnv* env);
136extern int register_android_os_ParcelFileDescriptor(JNIEnv *env);
137extern int register_android_os_SELinux(JNIEnv* env);
138extern int register_android_os_SystemProperties(JNIEnv *env);
139extern int register_android_os_SystemClock(JNIEnv* env);
140extern int register_android_os_Trace(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_opengl_classes(JNIEnv *env);
152extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
153extern int register_android_server_Watchdog(JNIEnv* env);
154extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
155extern int register_com_android_internal_os_ZygoteInit(JNIEnv* env);
156extern int register_android_backup_BackupDataInput(JNIEnv *env);
157extern int register_android_backup_BackupDataOutput(JNIEnv *env);
158extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
159extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
160extern int register_android_app_backup_FullBackup(JNIEnv *env);
161extern int register_android_app_ActivityThread(JNIEnv *env);
162extern int register_android_app_NativeActivity(JNIEnv *env);
163extern int register_android_media_RemoteDisplay(JNIEnv *env);
164extern int register_android_view_InputChannel(JNIEnv* env);
165extern int register_android_view_InputDevice(JNIEnv* env);
166extern int register_android_view_InputEventReceiver(JNIEnv* env);
167extern int register_android_view_InputEventSender(JNIEnv* env);
168extern int register_android_view_InputQueue(JNIEnv* env);
169extern int register_android_view_KeyCharacterMap(JNIEnv *env);
170extern int register_android_view_KeyEvent(JNIEnv* env);
171extern int register_android_view_MotionEvent(JNIEnv* env);
172extern int register_android_view_PointerIcon(JNIEnv* env);
173extern int register_android_view_VelocityTracker(JNIEnv* env);
174extern int register_android_content_res_ObbScanner(JNIEnv* env);
175extern int register_android_content_res_Configuration(JNIEnv* env);
176extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
177extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
178extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
179
180static AndroidRuntime* gCurRuntime = NULL;
181
182static void doThrow(JNIEnv* env, const char* exc, const char* msg = NULL)
183{
184    if (jniThrowException(env, exc, msg) != 0)
185        assert(false);
186}
187
188/*
189 * Code written in the Java Programming Language calls here from main().
190 */
191static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
192{
193    gCurRuntime->onStarted();
194}
195
196static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
197{
198    gCurRuntime->onZygoteInit();
199}
200
201static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
202        jobject clazz, jboolean exitWithoutCleanup)
203{
204    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
205}
206
207/*
208 * JNI registration.
209 */
210static JNINativeMethod gMethods[] = {
211    { "nativeFinishInit", "()V",
212        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
213    { "nativeZygoteInit", "()V",
214        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
215    { "nativeSetExitWithoutCleanup", "(Z)V",
216        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
217};
218
219int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
220{
221    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
222        gMethods, NELEM(gMethods));
223}
224
225// ----------------------------------------------------------------------
226
227/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
228
229
230AndroidRuntime::AndroidRuntime() :
231        mExitWithoutCleanup(false)
232{
233    SkGraphics::Init();
234    // this sets our preference for 16bit images during decode
235    // in case the src is opaque and 24bit
236    SkImageDecoder::SetDeviceConfig(SkBitmap::kRGB_565_Config);
237    // This cache is shared between browser native images, and java "purgeable"
238    // bitmaps. This globalpool is for images that do not either use the java
239    // heap, or are not backed by ashmem. See BitmapFactory.cpp for the key
240    // java call site.
241    SkImageRef_GlobalPool::SetRAMBudget(512 * 1024);
242    // There is also a global font cache, but its budget is specified in code
243    // see SkFontHost_android.cpp
244
245    // Pre-allocate enough space to hold a fair number of options.
246    mOptions.setCapacity(20);
247
248    assert(gCurRuntime == NULL);        // one per process
249    gCurRuntime = this;
250}
251
252AndroidRuntime::~AndroidRuntime()
253{
254    SkGraphics::Term();
255}
256
257/*
258 * Register native methods using JNI.
259 */
260/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
261    const char* className, const JNINativeMethod* gMethods, int numMethods)
262{
263    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
264}
265
266status_t AndroidRuntime::callMain(const char* className,
267    jclass clazz, int argc, const char* const argv[])
268{
269    JNIEnv* env;
270    jmethodID methodId;
271
272    ALOGD("Calling main entry %s", className);
273
274    env = getJNIEnv();
275    if (clazz == NULL || env == NULL) {
276        return UNKNOWN_ERROR;
277    }
278
279    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
280    if (methodId == NULL) {
281        ALOGE("ERROR: could not find method %s.main(String[])\n", className);
282        return UNKNOWN_ERROR;
283    }
284
285    /*
286     * We want to call main() with a String array with our arguments in it.
287     * Create an array and populate it.
288     */
289    jclass stringClass;
290    jobjectArray strArray;
291
292    stringClass = env->FindClass("java/lang/String");
293    strArray = env->NewObjectArray(argc, stringClass, NULL);
294
295    for (int i = 0; i < argc; i++) {
296        jstring argStr = env->NewStringUTF(argv[i]);
297        env->SetObjectArrayElement(strArray, i, argStr);
298    }
299
300    env->CallStaticVoidMethod(clazz, methodId, strArray);
301    return NO_ERROR;
302}
303
304/*
305 * The VM calls this through the "exit" hook.
306 */
307static void runtime_exit(int code)
308{
309    gCurRuntime->exit(code);
310}
311
312/*
313 * The VM calls this through the "vfprintf" hook.
314 *
315 * We ignore "fp" and just write the results to the log file.
316 */
317static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
318{
319    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
320}
321
322/**
323 * The VM calls this when mutex contention debugging is enabled to
324 * determine whether or not the blocked thread was a "sensitive thread"
325 * for user responsiveness/smoothess.
326 *
327 * Our policy for this is whether or not we're tracing any StrictMode
328 * events on this thread (which we might've inherited via Binder calls
329 * into us)
330 */
331static bool runtime_isSensitiveThread() {
332    IPCThreadState* state = IPCThreadState::selfOrNull();
333    return state && state->getStrictModePolicy() != 0;
334}
335
336
337/**
338 * Add VM arguments to the to-be-executed VM
339 * Stops at first non '-' argument (also stops at an argument of '--')
340 * Returns the number of args consumed
341 */
342int AndroidRuntime::addVmArguments(int argc, const char* const argv[])
343{
344    int i;
345
346    for (i = 0; i<argc; i++) {
347        if (argv[i][0] != '-') {
348            return i;
349        }
350        if (argv[i][1] == '-' && argv[i][2] == 0) {
351            return i+1;
352        }
353
354        JavaVMOption opt;
355        memset(&opt, 0, sizeof(opt));
356        opt.optionString = (char*)argv[i];
357        mOptions.add(opt);
358    }
359    return i;
360}
361
362static int hasDir(const char* dir)
363{
364    struct stat s;
365    int res = stat(dir, &s);
366    if (res == 0) {
367        return S_ISDIR(s.st_mode);
368    }
369    return 0;
370}
371
372/*
373 * We just want failed write() calls to just return with an error.
374 */
375static void blockSigpipe()
376{
377    sigset_t mask;
378
379    sigemptyset(&mask);
380    sigaddset(&mask, SIGPIPE);
381    if (sigprocmask(SIG_BLOCK, &mask, NULL) != 0)
382        ALOGW("WARNING: SIGPIPE not blocked\n");
383}
384
385/*
386 * Read the persistent locale.
387 */
388static void readLocale(char* language, char* region)
389{
390    char propLang[PROPERTY_VALUE_MAX], propRegn[PROPERTY_VALUE_MAX];
391
392    property_get("persist.sys.language", propLang, "");
393    property_get("persist.sys.country", propRegn, "");
394    if (*propLang == 0 && *propRegn == 0) {
395        /* Set to ro properties, default is en_US */
396        property_get("ro.product.locale.language", propLang, "en");
397        property_get("ro.product.locale.region", propRegn, "US");
398    }
399    strncat(language, propLang, 2);
400    strncat(region, propRegn, 2);
401    //ALOGD("language=%s region=%s\n", language, region);
402}
403
404/*
405 * Parse a property containing space-separated options that should be
406 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
407 *
408 * This will cut up "extraOptsBuf" as we chop it into individual options.
409 *
410 * Adds the strings, if any, to mOptions.
411 */
412void AndroidRuntime::parseExtraOpts(char* extraOptsBuf)
413{
414    JavaVMOption opt;
415    char* start;
416    char* end;
417
418    memset(&opt, 0, sizeof(opt));
419    start = extraOptsBuf;
420    while (*start != '\0') {
421        while (*start == ' ')                   /* skip leading whitespace */
422            start++;
423        if (*start == '\0')                     /* was trailing ws, bail */
424            break;
425
426        end = start+1;
427        while (*end != ' ' && *end != '\0')     /* find end of token */
428            end++;
429        if (*end == ' ')
430            *end++ = '\0';          /* mark end, advance to indicate more */
431
432        opt.optionString = start;
433        mOptions.add(opt);
434        start = end;
435    }
436}
437
438/*
439 * Start the Dalvik Virtual Machine.
440 *
441 * Various arguments, most determined by system properties, are passed in.
442 * The "mOptions" vector is updated.
443 *
444 * Returns 0 on success.
445 */
446int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv)
447{
448    int result = -1;
449    JavaVMInitArgs initArgs;
450    JavaVMOption opt;
451    char propBuf[PROPERTY_VALUE_MAX];
452    char stackTraceFileBuf[PROPERTY_VALUE_MAX];
453    char dexoptFlagsBuf[PROPERTY_VALUE_MAX];
454    char enableAssertBuf[sizeof("-ea:")-1 + PROPERTY_VALUE_MAX];
455    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
456    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
457    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
458    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
459    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
460    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
461    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
462    char extraOptsBuf[PROPERTY_VALUE_MAX];
463    char* stackTraceFile = NULL;
464    bool checkJni = false;
465    bool checkDexSum = false;
466    bool logStdio = false;
467    enum {
468      kEMDefault,
469      kEMIntPortable,
470      kEMIntFast,
471      kEMJitCompiler,
472    } executionMode = kEMDefault;
473
474
475    property_get("dalvik.vm.checkjni", propBuf, "");
476    if (strcmp(propBuf, "true") == 0) {
477        checkJni = true;
478    } else if (strcmp(propBuf, "false") != 0) {
479        /* property is neither true nor false; fall back on kernel parameter */
480        property_get("ro.kernel.android.checkjni", propBuf, "");
481        if (propBuf[0] == '1') {
482            checkJni = true;
483        }
484    }
485
486    property_get("dalvik.vm.execution-mode", propBuf, "");
487    if (strcmp(propBuf, "int:portable") == 0) {
488        executionMode = kEMIntPortable;
489    } else if (strcmp(propBuf, "int:fast") == 0) {
490        executionMode = kEMIntFast;
491    } else if (strcmp(propBuf, "int:jit") == 0) {
492        executionMode = kEMJitCompiler;
493    }
494
495    property_get("dalvik.vm.stack-trace-file", stackTraceFileBuf, "");
496
497    property_get("dalvik.vm.check-dex-sum", propBuf, "");
498    if (strcmp(propBuf, "true") == 0) {
499        checkDexSum = true;
500    }
501
502    property_get("log.redirect-stdio", propBuf, "");
503    if (strcmp(propBuf, "true") == 0) {
504        logStdio = true;
505    }
506
507    strcpy(enableAssertBuf, "-ea:");
508    property_get("dalvik.vm.enableassertions", enableAssertBuf+4, "");
509
510    strcpy(jniOptsBuf, "-Xjniopts:");
511    property_get("dalvik.vm.jniopts", jniOptsBuf+10, "");
512
513    /* route exit() to our handler */
514    opt.extraInfo = (void*) runtime_exit;
515    opt.optionString = "exit";
516    mOptions.add(opt);
517
518    /* route fprintf() to our handler */
519    opt.extraInfo = (void*) runtime_vfprintf;
520    opt.optionString = "vfprintf";
521    mOptions.add(opt);
522
523    /* register the framework-specific "is sensitive thread" hook */
524    opt.extraInfo = (void*) runtime_isSensitiveThread;
525    opt.optionString = "sensitiveThread";
526    mOptions.add(opt);
527
528    opt.extraInfo = NULL;
529
530    /* enable verbose; standard options are { jni, gc, class } */
531    //options[curOpt++].optionString = "-verbose:jni";
532    opt.optionString = "-verbose:gc";
533    mOptions.add(opt);
534    //options[curOpt++].optionString = "-verbose:class";
535
536    /*
537     * The default starting and maximum size of the heap.  Larger
538     * values should be specified in a product property override.
539     */
540    strcpy(heapstartsizeOptsBuf, "-Xms");
541    property_get("dalvik.vm.heapstartsize", heapstartsizeOptsBuf+4, "4m");
542    opt.optionString = heapstartsizeOptsBuf;
543    mOptions.add(opt);
544    strcpy(heapsizeOptsBuf, "-Xmx");
545    property_get("dalvik.vm.heapsize", heapsizeOptsBuf+4, "16m");
546    opt.optionString = heapsizeOptsBuf;
547    mOptions.add(opt);
548
549    // Increase the main thread's interpreter stack size for bug 6315322.
550    opt.optionString = "-XX:mainThreadStackSize=24K";
551    mOptions.add(opt);
552
553    strcpy(heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
554    property_get("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf+20, "");
555    if (heapgrowthlimitOptsBuf[20] != '\0') {
556        opt.optionString = heapgrowthlimitOptsBuf;
557        mOptions.add(opt);
558    }
559
560    strcpy(heapminfreeOptsBuf, "-XX:HeapMinFree=");
561    property_get("dalvik.vm.heapminfree", heapminfreeOptsBuf+16, "");
562    if (heapminfreeOptsBuf[16] != '\0') {
563        opt.optionString = heapminfreeOptsBuf;
564        mOptions.add(opt);
565    }
566
567    strcpy(heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
568    property_get("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf+16, "");
569    if (heapmaxfreeOptsBuf[16] != '\0') {
570        opt.optionString = heapmaxfreeOptsBuf;
571        mOptions.add(opt);
572    }
573
574    strcpy(heaptargetutilizationOptsBuf, "-XX:HeapTargetUtilization=");
575    property_get("dalvik.vm.heaptargetutilization", heaptargetutilizationOptsBuf+26, "");
576    if (heaptargetutilizationOptsBuf[26] != '\0') {
577        opt.optionString = heaptargetutilizationOptsBuf;
578        mOptions.add(opt);
579    }
580
581    /*
582     * Enable or disable dexopt features, such as bytecode verification and
583     * calculation of register maps for precise GC.
584     */
585    property_get("dalvik.vm.dexopt-flags", dexoptFlagsBuf, "");
586    if (dexoptFlagsBuf[0] != '\0') {
587        const char* opc;
588        const char* val;
589
590        opc = strstr(dexoptFlagsBuf, "v=");     /* verification */
591        if (opc != NULL) {
592            switch (*(opc+2)) {
593            case 'n':   val = "-Xverify:none";      break;
594            case 'r':   val = "-Xverify:remote";    break;
595            case 'a':   val = "-Xverify:all";       break;
596            default:    val = NULL;                 break;
597            }
598
599            if (val != NULL) {
600                opt.optionString = val;
601                mOptions.add(opt);
602            }
603        }
604
605        opc = strstr(dexoptFlagsBuf, "o=");     /* optimization */
606        if (opc != NULL) {
607            switch (*(opc+2)) {
608            case 'n':   val = "-Xdexopt:none";      break;
609            case 'v':   val = "-Xdexopt:verified";  break;
610            case 'a':   val = "-Xdexopt:all";       break;
611            case 'f':   val = "-Xdexopt:full";      break;
612            default:    val = NULL;                 break;
613            }
614
615            if (val != NULL) {
616                opt.optionString = val;
617                mOptions.add(opt);
618            }
619        }
620
621        opc = strstr(dexoptFlagsBuf, "m=y");    /* register map */
622        if (opc != NULL) {
623            opt.optionString = "-Xgenregmap";
624            mOptions.add(opt);
625
626            /* turn on precise GC while we're at it */
627            opt.optionString = "-Xgc:precise";
628            mOptions.add(opt);
629        }
630    }
631
632    /* enable debugging; set suspend=y to pause during VM init */
633    /* use android ADB transport */
634    opt.optionString =
635        "-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y";
636    mOptions.add(opt);
637
638    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
639    if (checkJni) {
640        /* extended JNI checking */
641        opt.optionString = "-Xcheck:jni";
642        mOptions.add(opt);
643
644        /* set a cap on JNI global references */
645        opt.optionString = "-Xjnigreflimit:2000";
646        mOptions.add(opt);
647
648        /* with -Xcheck:jni, this provides a JNI function call trace */
649        //opt.optionString = "-verbose:jni";
650        //mOptions.add(opt);
651    }
652
653    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:") + sizeof(propBuf)];
654    property_get("dalvik.vm.lockprof.threshold", propBuf, "");
655    if (strlen(propBuf) > 0) {
656      strcpy(lockProfThresholdBuf, "-Xlockprofthreshold:");
657      strcat(lockProfThresholdBuf, propBuf);
658      opt.optionString = lockProfThresholdBuf;
659      mOptions.add(opt);
660    }
661
662    /* Force interpreter-only mode for selected opcodes. Eg "1-0a,3c,f1-ff" */
663    char jitOpBuf[sizeof("-Xjitop:") + PROPERTY_VALUE_MAX];
664    property_get("dalvik.vm.jit.op", propBuf, "");
665    if (strlen(propBuf) > 0) {
666        strcpy(jitOpBuf, "-Xjitop:");
667        strcat(jitOpBuf, propBuf);
668        opt.optionString = jitOpBuf;
669        mOptions.add(opt);
670    }
671
672    /* Force interpreter-only mode for selected methods */
673    char jitMethodBuf[sizeof("-Xjitmethod:") + PROPERTY_VALUE_MAX];
674    property_get("dalvik.vm.jit.method", propBuf, "");
675    if (strlen(propBuf) > 0) {
676        strcpy(jitMethodBuf, "-Xjitmethod:");
677        strcat(jitMethodBuf, propBuf);
678        opt.optionString = jitMethodBuf;
679        mOptions.add(opt);
680    }
681
682    if (executionMode == kEMIntPortable) {
683        opt.optionString = "-Xint:portable";
684        mOptions.add(opt);
685    } else if (executionMode == kEMIntFast) {
686        opt.optionString = "-Xint:fast";
687        mOptions.add(opt);
688    } else if (executionMode == kEMJitCompiler) {
689        opt.optionString = "-Xint:jit";
690        mOptions.add(opt);
691    }
692
693    if (checkDexSum) {
694        /* perform additional DEX checksum tests */
695        opt.optionString = "-Xcheckdexsum";
696        mOptions.add(opt);
697    }
698
699    if (logStdio) {
700        /* convert stdout/stderr to log messages */
701        opt.optionString = "-Xlog-stdio";
702        mOptions.add(opt);
703    }
704
705    if (enableAssertBuf[4] != '\0') {
706        /* accept "all" to mean "all classes and packages" */
707        if (strcmp(enableAssertBuf+4, "all") == 0)
708            enableAssertBuf[3] = '\0';
709        ALOGI("Assertions enabled: '%s'\n", enableAssertBuf);
710        opt.optionString = enableAssertBuf;
711        mOptions.add(opt);
712    } else {
713        ALOGV("Assertions disabled\n");
714    }
715
716    if (jniOptsBuf[10] != '\0') {
717        ALOGI("JNI options: '%s'\n", jniOptsBuf);
718        opt.optionString = jniOptsBuf;
719        mOptions.add(opt);
720    }
721
722    if (stackTraceFileBuf[0] != '\0') {
723        static const char* stfOptName = "-Xstacktracefile:";
724
725        stackTraceFile = (char*) malloc(strlen(stfOptName) +
726            strlen(stackTraceFileBuf) +1);
727        strcpy(stackTraceFile, stfOptName);
728        strcat(stackTraceFile, stackTraceFileBuf);
729        opt.optionString = stackTraceFile;
730        mOptions.add(opt);
731    }
732
733    /* extra options; parse this late so it overrides others */
734    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
735    parseExtraOpts(extraOptsBuf);
736
737    /* Set the properties for locale */
738    {
739        char langOption[sizeof("-Duser.language=") + 3];
740        char regionOption[sizeof("-Duser.region=") + 3];
741        strcpy(langOption, "-Duser.language=");
742        strcpy(regionOption, "-Duser.region=");
743        readLocale(langOption, regionOption);
744        opt.extraInfo = NULL;
745        opt.optionString = langOption;
746        mOptions.add(opt);
747        opt.optionString = regionOption;
748        mOptions.add(opt);
749    }
750
751    /*
752     * We don't have /tmp on the device, but we often have an SD card.  Apps
753     * shouldn't use this, but some test suites might want to exercise it.
754     */
755    opt.optionString = "-Djava.io.tmpdir=/sdcard";
756    mOptions.add(opt);
757
758    initArgs.version = JNI_VERSION_1_4;
759    initArgs.options = mOptions.editArray();
760    initArgs.nOptions = mOptions.size();
761    initArgs.ignoreUnrecognized = JNI_FALSE;
762
763    /*
764     * Initialize the VM.
765     *
766     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
767     * If this call succeeds, the VM is ready, and we can start issuing
768     * JNI calls.
769     */
770    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
771        ALOGE("JNI_CreateJavaVM failed\n");
772        goto bail;
773    }
774
775    result = 0;
776
777bail:
778    free(stackTraceFile);
779    return result;
780}
781
782char* AndroidRuntime::toSlashClassName(const char* className)
783{
784    char* result = strdup(className);
785    for (char* cp = result; *cp != '\0'; cp++) {
786        if (*cp == '.') {
787            *cp = '/';
788        }
789    }
790    return result;
791}
792
793/*
794 * Start the Android runtime.  This involves starting the virtual machine
795 * and calling the "static void main(String[] args)" method in the class
796 * named by "className".
797 *
798 * Passes the main function two arguments, the class name and the specified
799 * options string.
800 */
801void AndroidRuntime::start(const char* className, const char* options)
802{
803    ALOGD("\n>>>>>> AndroidRuntime START %s <<<<<<\n",
804            className != NULL ? className : "(unknown)");
805
806    blockSigpipe();
807
808    /*
809     * 'startSystemServer == true' means runtime is obsolete and not run from
810     * init.rc anymore, so we print out the boot start event here.
811     */
812    if (strcmp(options, "start-system-server") == 0) {
813        /* track our progress through the boot sequence */
814        const int LOG_BOOT_PROGRESS_START = 3000;
815        LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,
816                       ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
817    }
818
819    const char* rootDir = getenv("ANDROID_ROOT");
820    if (rootDir == NULL) {
821        rootDir = "/system";
822        if (!hasDir("/system")) {
823            LOG_FATAL("No root directory specified, and /android does not exist.");
824            return;
825        }
826        setenv("ANDROID_ROOT", rootDir, 1);
827    }
828
829    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
830    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
831
832    /* start the virtual machine */
833    JNIEnv* env;
834    if (startVm(&mJavaVM, &env) != 0) {
835        return;
836    }
837    onVmCreated(env);
838
839    /*
840     * Register android functions.
841     */
842    if (startReg(env) < 0) {
843        ALOGE("Unable to register all android natives\n");
844        return;
845    }
846
847    /*
848     * We want to call main() with a String array with arguments in it.
849     * At present we have two arguments, the class name and an option string.
850     * Create an array to hold them.
851     */
852    jclass stringClass;
853    jobjectArray strArray;
854    jstring classNameStr;
855    jstring optionsStr;
856
857    stringClass = env->FindClass("java/lang/String");
858    assert(stringClass != NULL);
859    strArray = env->NewObjectArray(2, stringClass, NULL);
860    assert(strArray != NULL);
861    classNameStr = env->NewStringUTF(className);
862    assert(classNameStr != NULL);
863    env->SetObjectArrayElement(strArray, 0, classNameStr);
864    optionsStr = env->NewStringUTF(options);
865    env->SetObjectArrayElement(strArray, 1, optionsStr);
866
867    /*
868     * Start VM.  This thread becomes the main thread of the VM, and will
869     * not return until the VM exits.
870     */
871    char* slashClassName = toSlashClassName(className);
872    jclass startClass = env->FindClass(slashClassName);
873    if (startClass == NULL) {
874        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
875        /* keep going */
876    } else {
877        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
878            "([Ljava/lang/String;)V");
879        if (startMeth == NULL) {
880            ALOGE("JavaVM unable to find main() in '%s'\n", className);
881            /* keep going */
882        } else {
883            env->CallStaticVoidMethod(startClass, startMeth, strArray);
884
885#if 0
886            if (env->ExceptionCheck())
887                threadExitUncaughtException(env);
888#endif
889        }
890    }
891    free(slashClassName);
892
893    ALOGD("Shutting down VM\n");
894    if (mJavaVM->DetachCurrentThread() != JNI_OK)
895        ALOGW("Warning: unable to detach main thread\n");
896    if (mJavaVM->DestroyJavaVM() != 0)
897        ALOGW("Warning: VM did not shut down cleanly\n");
898}
899
900void AndroidRuntime::exit(int code)
901{
902    if (mExitWithoutCleanup) {
903        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
904        ::_exit(code);
905    } else {
906        ALOGI("VM exiting with result code %d.", code);
907        onExit(code);
908        ::exit(code);
909    }
910}
911
912void AndroidRuntime::onVmCreated(JNIEnv* env)
913{
914    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
915}
916
917/*
918 * Get the JNIEnv pointer for this thread.
919 *
920 * Returns NULL if the slot wasn't allocated or populated.
921 */
922/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
923{
924    JNIEnv* env;
925    JavaVM* vm = AndroidRuntime::getJavaVM();
926    assert(vm != NULL);
927
928    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
929        return NULL;
930    return env;
931}
932
933/*
934 * Makes the current thread visible to the VM.
935 *
936 * The JNIEnv pointer returned is only valid for the current thread, and
937 * thus must be tucked into thread-local storage.
938 */
939static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
940{
941    JavaVMAttachArgs args;
942    JavaVM* vm;
943    jint result;
944
945    vm = AndroidRuntime::getJavaVM();
946    assert(vm != NULL);
947
948    args.version = JNI_VERSION_1_4;
949    args.name = (char*) threadName;
950    args.group = NULL;
951
952    result = vm->AttachCurrentThread(pEnv, (void*) &args);
953    if (result != JNI_OK)
954        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
955
956    return result;
957}
958
959/*
960 * Detach the current thread from the set visible to the VM.
961 */
962static int javaDetachThread(void)
963{
964    JavaVM* vm;
965    jint result;
966
967    vm = AndroidRuntime::getJavaVM();
968    assert(vm != NULL);
969
970    result = vm->DetachCurrentThread();
971    if (result != JNI_OK)
972        ALOGE("ERROR: thread detach failed\n");
973    return result;
974}
975
976/*
977 * When starting a native thread that will be visible from the VM, we
978 * bounce through this to get the right attach/detach action.
979 * Note that this function calls free(args)
980 */
981/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
982    void* start = ((void**)args)[0];
983    void* userData = ((void **)args)[1];
984    char* name = (char*) ((void **)args)[2];        // we own this storage
985    free(args);
986    JNIEnv* env;
987    int result;
988
989    /* hook us into the VM */
990    if (javaAttachThread(name, &env) != JNI_OK)
991        return -1;
992
993    /* start the thread running */
994    result = (*(android_thread_func_t)start)(userData);
995
996    /* unhook us */
997    javaDetachThread();
998    free(name);
999
1000    return result;
1001}
1002
1003/*
1004 * This is invoked from androidCreateThreadEtc() via the callback
1005 * set with androidSetCreateThreadFunc().
1006 *
1007 * We need to create the new thread in such a way that it gets hooked
1008 * into the VM before it really starts executing.
1009 */
1010/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1011                                android_thread_func_t entryFunction,
1012                                void* userData,
1013                                const char* threadName,
1014                                int32_t threadPriority,
1015                                size_t threadStackSize,
1016                                android_thread_id_t* threadId)
1017{
1018    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1019    int result;
1020
1021    assert(threadName != NULL);
1022
1023    args[0] = (void*) entryFunction;
1024    args[1] = userData;
1025    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1026
1027    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1028        threadName, threadPriority, threadStackSize, threadId);
1029    return result;
1030}
1031
1032/*
1033 * Create a thread that is visible from the VM.
1034 *
1035 * This is called from elsewhere in the library.
1036 */
1037/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1038    void (*start)(void *), void* arg)
1039{
1040    android_thread_id_t threadId = 0;
1041    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1042        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1043    return threadId;
1044}
1045
1046#if 0
1047static void quickTest(void* arg)
1048{
1049    const char* str = (const char*) arg;
1050
1051    printf("In quickTest: %s\n", str);
1052}
1053#endif
1054
1055#ifdef NDEBUG
1056    #define REG_JNI(name)      { name }
1057    struct RegJNIRec {
1058        int (*mProc)(JNIEnv*);
1059    };
1060#else
1061    #define REG_JNI(name)      { name, #name }
1062    struct RegJNIRec {
1063        int (*mProc)(JNIEnv*);
1064        const char* mName;
1065    };
1066#endif
1067
1068typedef void (*RegJAMProc)();
1069
1070static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1071{
1072    for (size_t i = 0; i < count; i++) {
1073        if (array[i].mProc(env) < 0) {
1074#ifndef NDEBUG
1075            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1076#endif
1077            return -1;
1078        }
1079    }
1080    return 0;
1081}
1082
1083static void register_jam_procs(const RegJAMProc array[], size_t count)
1084{
1085    for (size_t i = 0; i < count; i++) {
1086        array[i]();
1087    }
1088}
1089
1090static const RegJNIRec gRegJNI[] = {
1091    REG_JNI(register_android_debug_JNITest),
1092    REG_JNI(register_com_android_internal_os_RuntimeInit),
1093    REG_JNI(register_android_os_SystemClock),
1094    REG_JNI(register_android_util_EventLog),
1095    REG_JNI(register_android_util_Log),
1096    REG_JNI(register_android_util_FloatMath),
1097    REG_JNI(register_android_text_format_Time),
1098    REG_JNI(register_android_content_AssetManager),
1099    REG_JNI(register_android_content_StringBlock),
1100    REG_JNI(register_android_content_XmlBlock),
1101    REG_JNI(register_android_emoji_EmojiFactory),
1102    REG_JNI(register_android_text_AndroidCharacter),
1103    REG_JNI(register_android_text_AndroidBidi),
1104    REG_JNI(register_android_view_InputDevice),
1105    REG_JNI(register_android_view_KeyCharacterMap),
1106    REG_JNI(register_android_os_Process),
1107    REG_JNI(register_android_os_SystemProperties),
1108    REG_JNI(register_android_os_Binder),
1109    REG_JNI(register_android_os_Parcel),
1110    REG_JNI(register_android_view_DisplayEventReceiver),
1111    REG_JNI(register_android_nio_utils),
1112    REG_JNI(register_android_graphics_PixelFormat),
1113    REG_JNI(register_android_graphics_Graphics),
1114    REG_JNI(register_android_view_GLES20DisplayList),
1115    REG_JNI(register_android_view_GLES20Canvas),
1116    REG_JNI(register_android_view_HardwareRenderer),
1117    REG_JNI(register_android_view_Surface),
1118    REG_JNI(register_android_view_SurfaceControl),
1119    REG_JNI(register_android_view_SurfaceSession),
1120    REG_JNI(register_android_view_TextureView),
1121    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1122    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1123    REG_JNI(register_android_opengl_jni_EGL14),
1124    REG_JNI(register_android_opengl_jni_GLES10),
1125    REG_JNI(register_android_opengl_jni_GLES10Ext),
1126    REG_JNI(register_android_opengl_jni_GLES11),
1127    REG_JNI(register_android_opengl_jni_GLES11Ext),
1128    REG_JNI(register_android_opengl_jni_GLES20),
1129    REG_JNI(register_android_opengl_jni_GLES30),
1130
1131    REG_JNI(register_android_graphics_Bitmap),
1132    REG_JNI(register_android_graphics_BitmapFactory),
1133    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1134    REG_JNI(register_android_graphics_Camera),
1135    REG_JNI(register_android_graphics_Canvas),
1136    REG_JNI(register_android_graphics_ColorFilter),
1137    REG_JNI(register_android_graphics_DrawFilter),
1138    REG_JNI(register_android_graphics_Interpolator),
1139    REG_JNI(register_android_graphics_LayerRasterizer),
1140    REG_JNI(register_android_graphics_MaskFilter),
1141    REG_JNI(register_android_graphics_Matrix),
1142    REG_JNI(register_android_graphics_Movie),
1143    REG_JNI(register_android_graphics_NinePatch),
1144    REG_JNI(register_android_graphics_Paint),
1145    REG_JNI(register_android_graphics_Path),
1146    REG_JNI(register_android_graphics_PathMeasure),
1147    REG_JNI(register_android_graphics_PathEffect),
1148    REG_JNI(register_android_graphics_Picture),
1149    REG_JNI(register_android_graphics_PorterDuff),
1150    REG_JNI(register_android_graphics_Rasterizer),
1151    REG_JNI(register_android_graphics_Region),
1152    REG_JNI(register_android_graphics_Shader),
1153    REG_JNI(register_android_graphics_SurfaceTexture),
1154    REG_JNI(register_android_graphics_Typeface),
1155    REG_JNI(register_android_graphics_Xfermode),
1156    REG_JNI(register_android_graphics_YuvImage),
1157
1158    REG_JNI(register_android_database_CursorWindow),
1159    REG_JNI(register_android_database_SQLiteConnection),
1160    REG_JNI(register_android_database_SQLiteGlobal),
1161    REG_JNI(register_android_database_SQLiteDebug),
1162    REG_JNI(register_android_os_Debug),
1163    REG_JNI(register_android_os_FileObserver),
1164    REG_JNI(register_android_os_FileUtils),
1165    REG_JNI(register_android_os_MessageQueue),
1166    REG_JNI(register_android_os_ParcelFileDescriptor),
1167    REG_JNI(register_android_os_SELinux),
1168    REG_JNI(register_android_os_Trace),
1169    REG_JNI(register_android_os_UEventObserver),
1170    REG_JNI(register_android_net_LocalSocketImpl),
1171    REG_JNI(register_android_net_NetworkUtils),
1172    REG_JNI(register_android_net_TrafficStats),
1173    REG_JNI(register_android_net_wifi_WifiManager),
1174    REG_JNI(register_android_os_MemoryFile),
1175    REG_JNI(register_com_android_internal_os_ZygoteInit),
1176    REG_JNI(register_android_hardware_Camera),
1177    REG_JNI(register_android_hardware_SensorManager),
1178    REG_JNI(register_android_hardware_SerialPort),
1179    REG_JNI(register_android_hardware_UsbDevice),
1180    REG_JNI(register_android_hardware_UsbDeviceConnection),
1181    REG_JNI(register_android_hardware_UsbRequest),
1182    REG_JNI(register_android_media_AudioRecord),
1183    REG_JNI(register_android_media_AudioSystem),
1184    REG_JNI(register_android_media_AudioTrack),
1185    REG_JNI(register_android_media_JetPlayer),
1186    REG_JNI(register_android_media_RemoteDisplay),
1187    REG_JNI(register_android_media_ToneGenerator),
1188
1189    REG_JNI(register_android_opengl_classes),
1190    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1191    REG_JNI(register_android_server_Watchdog),
1192    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1193    REG_JNI(register_android_backup_BackupDataInput),
1194    REG_JNI(register_android_backup_BackupDataOutput),
1195    REG_JNI(register_android_backup_FileBackupHelperBase),
1196    REG_JNI(register_android_backup_BackupHelperDispatcher),
1197    REG_JNI(register_android_app_backup_FullBackup),
1198    REG_JNI(register_android_app_ActivityThread),
1199    REG_JNI(register_android_app_NativeActivity),
1200    REG_JNI(register_android_view_InputChannel),
1201    REG_JNI(register_android_view_InputEventReceiver),
1202    REG_JNI(register_android_view_InputEventSender),
1203    REG_JNI(register_android_view_InputQueue),
1204    REG_JNI(register_android_view_KeyEvent),
1205    REG_JNI(register_android_view_MotionEvent),
1206    REG_JNI(register_android_view_PointerIcon),
1207    REG_JNI(register_android_view_VelocityTracker),
1208
1209    REG_JNI(register_android_content_res_ObbScanner),
1210    REG_JNI(register_android_content_res_Configuration),
1211
1212    REG_JNI(register_android_animation_PropertyValuesHolder),
1213    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1214    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1215};
1216
1217/*
1218 * Register android native functions with the VM.
1219 */
1220/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1221{
1222    /*
1223     * This hook causes all future threads created in this process to be
1224     * attached to the JavaVM.  (This needs to go away in favor of JNI
1225     * Attach calls.)
1226     */
1227    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1228
1229    ALOGV("--- registering native functions ---\n");
1230
1231    /*
1232     * Every "register" function calls one or more things that return
1233     * a local reference (e.g. FindClass).  Because we haven't really
1234     * started the VM yet, they're all getting stored in the base frame
1235     * and never released.  Use Push/Pop to manage the storage.
1236     */
1237    env->PushLocalFrame(200);
1238
1239    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1240        env->PopLocalFrame(NULL);
1241        return -1;
1242    }
1243    env->PopLocalFrame(NULL);
1244
1245    //createJavaThread("fubar", quickTest, (void*) "hello");
1246
1247    return 0;
1248}
1249
1250AndroidRuntime* AndroidRuntime::getRuntime()
1251{
1252    return gCurRuntime;
1253}
1254
1255/**
1256 * Used by WithFramework to register native functions.
1257 */
1258extern "C"
1259jint Java_com_android_internal_util_WithFramework_registerNatives(
1260        JNIEnv* env, jclass clazz) {
1261    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1262}
1263
1264/**
1265 * Used by LoadClass to register native functions.
1266 */
1267extern "C"
1268jint Java_LoadClass_registerNatives(JNIEnv* env, jclass clazz) {
1269    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1270}
1271
1272}   // namespace android
1273