AndroidRuntime.cpp revision 16f5f5cc9d4c480fac3dc7f176f3f1edfbd256f4 
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_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_Display(JNIEnv* env);
119extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
120extern int register_android_view_GLES20DisplayList(JNIEnv* env);
121extern int register_android_view_GLES20Canvas(JNIEnv* env);
122extern int register_android_view_HardwareRenderer(JNIEnv* env);
123extern int register_android_view_Surface(JNIEnv* env);
124extern int register_android_view_TextureView(JNIEnv* env);
125extern int register_android_database_CursorWindow(JNIEnv* env);
126extern int register_android_database_SQLiteConnection(JNIEnv* env);
127extern int register_android_database_SQLiteGlobal(JNIEnv* env);
128extern int register_android_database_SQLiteDebug(JNIEnv* env);
129extern int register_android_debug_JNITest(JNIEnv* env);
130extern int register_android_nio_utils(JNIEnv* env);
131extern int register_android_text_format_Time(JNIEnv* env);
132extern int register_android_os_Debug(JNIEnv* env);
133extern int register_android_os_MessageQueue(JNIEnv* env);
134extern int register_android_os_Parcel(JNIEnv* env);
135extern int register_android_os_ParcelFileDescriptor(JNIEnv *env);
136extern int register_android_os_Power(JNIEnv *env);
137extern int register_android_os_StatFs(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_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_NetworkManagementSocketTagger(JNIEnv* env);
160extern int register_android_server_Watchdog(JNIEnv* env);
161extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
162extern int register_com_android_internal_os_ZygoteInit(JNIEnv* env);
163extern int register_android_backup_BackupDataInput(JNIEnv *env);
164extern int register_android_backup_BackupDataOutput(JNIEnv *env);
165extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
166extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
167extern int register_android_app_backup_FullBackup(JNIEnv *env);
168extern int register_android_app_ActivityThread(JNIEnv *env);
169extern int register_android_app_NativeActivity(JNIEnv *env);
170extern int register_android_view_InputChannel(JNIEnv* env);
171extern int register_android_view_InputEventReceiver(JNIEnv* env);
172extern int register_android_view_KeyEvent(JNIEnv* env);
173extern int register_android_view_MotionEvent(JNIEnv* env);
174extern int register_android_view_PointerIcon(JNIEnv* env);
175extern int register_android_view_VelocityTracker(JNIEnv* env);
176extern int register_android_content_res_ObbScanner(JNIEnv* env);
177extern int register_android_content_res_Configuration(JNIEnv* env);
178extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
179extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
180
181static AndroidRuntime* gCurRuntime = NULL;
182
183static void doThrow(JNIEnv* env, const char* exc, const char* msg = NULL)
184{
185    if (jniThrowException(env, exc, msg) != 0)
186        assert(false);
187}
188
189/*
190 * Code written in the Java Programming Language calls here from main().
191 */
192static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
193{
194    gCurRuntime->onStarted();
195}
196
197static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
198{
199    gCurRuntime->onZygoteInit();
200}
201
202/*
203 * JNI registration.
204 */
205static JNINativeMethod gMethods[] = {
206    { "nativeFinishInit", "()V",
207        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
208    { "nativeZygoteInit", "()V",
209        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
210};
211
212int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
213{
214    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
215        gMethods, NELEM(gMethods));
216}
217
218// ----------------------------------------------------------------------
219
220/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
221
222
223AndroidRuntime::AndroidRuntime()
224{
225    SkGraphics::Init();
226    // this sets our preference for 16bit images during decode
227    // in case the src is opaque and 24bit
228    SkImageDecoder::SetDeviceConfig(SkBitmap::kRGB_565_Config);
229    // This cache is shared between browser native images, and java "purgeable"
230    // bitmaps. This globalpool is for images that do not either use the java
231    // heap, or are not backed by ashmem. See BitmapFactory.cpp for the key
232    // java call site.
233    SkImageRef_GlobalPool::SetRAMBudget(512 * 1024);
234    // There is also a global font cache, but its budget is specified in code
235    // see SkFontHost_android.cpp
236
237    // Pre-allocate enough space to hold a fair number of options.
238    mOptions.setCapacity(20);
239
240    assert(gCurRuntime == NULL);        // one per process
241    gCurRuntime = this;
242}
243
244AndroidRuntime::~AndroidRuntime()
245{
246    SkGraphics::Term();
247}
248
249/*
250 * Register native methods using JNI.
251 */
252/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
253    const char* className, const JNINativeMethod* gMethods, int numMethods)
254{
255    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
256}
257
258status_t AndroidRuntime::callMain(const char* className,
259    jclass clazz, int argc, const char* const argv[])
260{
261    JNIEnv* env;
262    jmethodID methodId;
263
264    ALOGD("Calling main entry %s", className);
265
266    env = getJNIEnv();
267    if (clazz == NULL || env == NULL) {
268        return UNKNOWN_ERROR;
269    }
270
271    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
272    if (methodId == NULL) {
273        ALOGE("ERROR: could not find method %s.main(String[])\n", className);
274        return UNKNOWN_ERROR;
275    }
276
277    /*
278     * We want to call main() with a String array with our arguments in it.
279     * Create an array and populate it.
280     */
281    jclass stringClass;
282    jobjectArray strArray;
283
284    stringClass = env->FindClass("java/lang/String");
285    strArray = env->NewObjectArray(argc, stringClass, NULL);
286
287    for (int i = 0; i < argc; i++) {
288        jstring argStr = env->NewStringUTF(argv[i]);
289        env->SetObjectArrayElement(strArray, i, argStr);
290    }
291
292    env->CallStaticVoidMethod(clazz, methodId, strArray);
293    return NO_ERROR;
294}
295
296/*
297 * The VM calls this through the "exit" hook.
298 */
299static void runtime_exit(int code)
300{
301    gCurRuntime->onExit(code);
302    exit(code);
303}
304
305/*
306 * The VM calls this through the "vfprintf" hook.
307 *
308 * We ignore "fp" and just write the results to the log file.
309 */
310static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
311{
312    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
313}
314
315/**
316 * The VM calls this when mutex contention debugging is enabled to
317 * determine whether or not the blocked thread was a "sensitive thread"
318 * for user responsiveness/smoothess.
319 *
320 * Our policy for this is whether or not we're tracing any StrictMode
321 * events on this thread (which we might've inherited via Binder calls
322 * into us)
323 */
324static bool runtime_isSensitiveThread() {
325    IPCThreadState* state = IPCThreadState::selfOrNull();
326    return state && state->getStrictModePolicy() != 0;
327}
328
329
330/**
331 * Add VM arguments to the to-be-executed VM
332 * Stops at first non '-' argument (also stops at an argument of '--')
333 * Returns the number of args consumed
334 */
335int AndroidRuntime::addVmArguments(int argc, const char* const argv[])
336{
337    int i;
338
339    for (i = 0; i<argc; i++) {
340        if (argv[i][0] != '-') {
341            return i;
342        }
343        if (argv[i][1] == '-' && argv[i][2] == 0) {
344            return i+1;
345        }
346
347        JavaVMOption opt;
348        memset(&opt, 0, sizeof(opt));
349        opt.optionString = (char*)argv[i];
350        mOptions.add(opt);
351    }
352    return i;
353}
354
355static int hasDir(const char* dir)
356{
357    struct stat s;
358    int res = stat(dir, &s);
359    if (res == 0) {
360        return S_ISDIR(s.st_mode);
361    }
362    return 0;
363}
364
365/*
366 * We just want failed write() calls to just return with an error.
367 */
368static void blockSigpipe()
369{
370    sigset_t mask;
371
372    sigemptyset(&mask);
373    sigaddset(&mask, SIGPIPE);
374    if (sigprocmask(SIG_BLOCK, &mask, NULL) != 0)
375        ALOGW("WARNING: SIGPIPE not blocked\n");
376}
377
378/*
379 * Read the persistent locale.
380 */
381static void readLocale(char* language, char* region)
382{
383    char propLang[PROPERTY_VALUE_MAX], propRegn[PROPERTY_VALUE_MAX];
384
385    property_get("persist.sys.language", propLang, "");
386    property_get("persist.sys.country", propRegn, "");
387    if (*propLang == 0 && *propRegn == 0) {
388        /* Set to ro properties, default is en_US */
389        property_get("ro.product.locale.language", propLang, "en");
390        property_get("ro.product.locale.region", propRegn, "US");
391    }
392    strncat(language, propLang, 2);
393    strncat(region, propRegn, 2);
394    //ALOGD("language=%s region=%s\n", language, region);
395}
396
397/*
398 * Parse a property containing space-separated options that should be
399 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
400 *
401 * This will cut up "extraOptsBuf" as we chop it into individual options.
402 *
403 * Adds the strings, if any, to mOptions.
404 */
405void AndroidRuntime::parseExtraOpts(char* extraOptsBuf)
406{
407    JavaVMOption opt;
408    char* start;
409    char* end;
410
411    memset(&opt, 0, sizeof(opt));
412    start = extraOptsBuf;
413    while (*start != '\0') {
414        while (*start == ' ')                   /* skip leading whitespace */
415            start++;
416        if (*start == '\0')                     /* was trailing ws, bail */
417            break;
418
419        end = start+1;
420        while (*end != ' ' && *end != '\0')     /* find end of token */
421            end++;
422        if (*end == ' ')
423            *end++ = '\0';          /* mark end, advance to indicate more */
424
425        opt.optionString = start;
426        mOptions.add(opt);
427        start = end;
428    }
429}
430
431/*
432 * Start the Dalvik Virtual Machine.
433 *
434 * Various arguments, most determined by system properties, are passed in.
435 * The "mOptions" vector is updated.
436 *
437 * Returns 0 on success.
438 */
439int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv)
440{
441    int result = -1;
442    JavaVMInitArgs initArgs;
443    JavaVMOption opt;
444    char propBuf[PROPERTY_VALUE_MAX];
445    char stackTraceFileBuf[PROPERTY_VALUE_MAX];
446    char dexoptFlagsBuf[PROPERTY_VALUE_MAX];
447    char enableAssertBuf[sizeof("-ea:")-1 + PROPERTY_VALUE_MAX];
448    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
449    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
450    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
451    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
452    char extraOptsBuf[PROPERTY_VALUE_MAX];
453    char* stackTraceFile = NULL;
454    bool checkJni = false;
455    bool checkDexSum = false;
456    bool logStdio = false;
457    enum {
458      kEMDefault,
459      kEMIntPortable,
460      kEMIntFast,
461#if defined(WITH_JIT)
462      kEMJitCompiler,
463#endif
464    } executionMode = kEMDefault;
465
466
467    property_get("dalvik.vm.checkjni", propBuf, "");
468    if (strcmp(propBuf, "true") == 0) {
469        checkJni = true;
470    } else if (strcmp(propBuf, "false") != 0) {
471        /* property is neither true nor false; fall back on kernel parameter */
472        property_get("ro.kernel.android.checkjni", propBuf, "");
473        if (propBuf[0] == '1') {
474            checkJni = true;
475        }
476    }
477
478    property_get("dalvik.vm.execution-mode", propBuf, "");
479    if (strcmp(propBuf, "int:portable") == 0) {
480        executionMode = kEMIntPortable;
481    } else if (strcmp(propBuf, "int:fast") == 0) {
482        executionMode = kEMIntFast;
483#if defined(WITH_JIT)
484    } else if (strcmp(propBuf, "int:jit") == 0) {
485        executionMode = kEMJitCompiler;
486#endif
487    }
488
489    property_get("dalvik.vm.stack-trace-file", stackTraceFileBuf, "");
490
491    property_get("dalvik.vm.check-dex-sum", propBuf, "");
492    if (strcmp(propBuf, "true") == 0) {
493        checkDexSum = true;
494    }
495
496    property_get("log.redirect-stdio", propBuf, "");
497    if (strcmp(propBuf, "true") == 0) {
498        logStdio = true;
499    }
500
501    strcpy(enableAssertBuf, "-ea:");
502    property_get("dalvik.vm.enableassertions", enableAssertBuf+4, "");
503
504    strcpy(jniOptsBuf, "-Xjniopts:");
505    property_get("dalvik.vm.jniopts", jniOptsBuf+10, "");
506
507    /* route exit() to our handler */
508    opt.extraInfo = (void*) runtime_exit;
509    opt.optionString = "exit";
510    mOptions.add(opt);
511
512    /* route fprintf() to our handler */
513    opt.extraInfo = (void*) runtime_vfprintf;
514    opt.optionString = "vfprintf";
515    mOptions.add(opt);
516
517    /* register the framework-specific "is sensitive thread" hook */
518    opt.extraInfo = (void*) runtime_isSensitiveThread;
519    opt.optionString = "sensitiveThread";
520    mOptions.add(opt);
521
522    opt.extraInfo = NULL;
523
524    /* enable verbose; standard options are { jni, gc, class } */
525    //options[curOpt++].optionString = "-verbose:jni";
526    opt.optionString = "-verbose:gc";
527    mOptions.add(opt);
528    //options[curOpt++].optionString = "-verbose:class";
529
530    /*
531     * The default starting and maximum size of the heap.  Larger
532     * values should be specified in a product property override.
533     */
534    strcpy(heapstartsizeOptsBuf, "-Xms");
535    property_get("dalvik.vm.heapstartsize", heapstartsizeOptsBuf+4, "4m");
536    opt.optionString = heapstartsizeOptsBuf;
537    mOptions.add(opt);
538    strcpy(heapsizeOptsBuf, "-Xmx");
539    property_get("dalvik.vm.heapsize", heapsizeOptsBuf+4, "16m");
540    opt.optionString = heapsizeOptsBuf;
541    mOptions.add(opt);
542
543    strcpy(heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
544    property_get("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf+20, "");
545    if (heapgrowthlimitOptsBuf[20] != '\0') {
546        opt.optionString = heapgrowthlimitOptsBuf;
547        mOptions.add(opt);
548    }
549
550    /*
551     * Enable or disable dexopt features, such as bytecode verification and
552     * calculation of register maps for precise GC.
553     */
554    property_get("dalvik.vm.dexopt-flags", dexoptFlagsBuf, "");
555    if (dexoptFlagsBuf[0] != '\0') {
556        const char* opc;
557        const char* val;
558
559        opc = strstr(dexoptFlagsBuf, "v=");     /* verification */
560        if (opc != NULL) {
561            switch (*(opc+2)) {
562            case 'n':   val = "-Xverify:none";      break;
563            case 'r':   val = "-Xverify:remote";    break;
564            case 'a':   val = "-Xverify:all";       break;
565            default:    val = NULL;                 break;
566            }
567
568            if (val != NULL) {
569                opt.optionString = val;
570                mOptions.add(opt);
571            }
572        }
573
574        opc = strstr(dexoptFlagsBuf, "o=");     /* optimization */
575        if (opc != NULL) {
576            switch (*(opc+2)) {
577            case 'n':   val = "-Xdexopt:none";      break;
578            case 'v':   val = "-Xdexopt:verified";  break;
579            case 'a':   val = "-Xdexopt:all";       break;
580            case 'f':   val = "-Xdexopt:full";      break;
581            default:    val = NULL;                 break;
582            }
583
584            if (val != NULL) {
585                opt.optionString = val;
586                mOptions.add(opt);
587            }
588        }
589
590        opc = strstr(dexoptFlagsBuf, "m=y");    /* register map */
591        if (opc != NULL) {
592            opt.optionString = "-Xgenregmap";
593            mOptions.add(opt);
594
595            /* turn on precise GC while we're at it */
596            opt.optionString = "-Xgc:precise";
597            mOptions.add(opt);
598        }
599    }
600
601    /* enable debugging; set suspend=y to pause during VM init */
602    /* use android ADB transport */
603    opt.optionString =
604        "-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y";
605    mOptions.add(opt);
606
607    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
608    if (checkJni) {
609        /* extended JNI checking */
610        opt.optionString = "-Xcheck:jni";
611        mOptions.add(opt);
612
613        /* set a cap on JNI global references */
614        opt.optionString = "-Xjnigreflimit:2000";
615        mOptions.add(opt);
616
617        /* with -Xcheck:jni, this provides a JNI function call trace */
618        //opt.optionString = "-verbose:jni";
619        //mOptions.add(opt);
620    }
621
622    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:") + sizeof(propBuf)];
623    property_get("dalvik.vm.lockprof.threshold", propBuf, "");
624    if (strlen(propBuf) > 0) {
625      strcpy(lockProfThresholdBuf, "-Xlockprofthreshold:");
626      strcat(lockProfThresholdBuf, propBuf);
627      opt.optionString = lockProfThresholdBuf;
628      mOptions.add(opt);
629    }
630
631#if defined(WITH_JIT)
632    /* Force interpreter-only mode for selected opcodes. Eg "1-0a,3c,f1-ff" */
633    char jitOpBuf[sizeof("-Xjitop:") + PROPERTY_VALUE_MAX];
634    property_get("dalvik.vm.jit.op", propBuf, "");
635    if (strlen(propBuf) > 0) {
636        strcpy(jitOpBuf, "-Xjitop:");
637        strcat(jitOpBuf, propBuf);
638        opt.optionString = jitOpBuf;
639        mOptions.add(opt);
640    }
641
642    /* Force interpreter-only mode for selected methods */
643    char jitMethodBuf[sizeof("-Xjitmethod:") + PROPERTY_VALUE_MAX];
644    property_get("dalvik.vm.jit.method", propBuf, "");
645    if (strlen(propBuf) > 0) {
646        strcpy(jitMethodBuf, "-Xjitmethod:");
647        strcat(jitMethodBuf, propBuf);
648        opt.optionString = jitMethodBuf;
649        mOptions.add(opt);
650    }
651#endif
652
653    if (executionMode == kEMIntPortable) {
654        opt.optionString = "-Xint:portable";
655        mOptions.add(opt);
656    } else if (executionMode == kEMIntFast) {
657        opt.optionString = "-Xint:fast";
658        mOptions.add(opt);
659#if defined(WITH_JIT)
660    } else if (executionMode == kEMJitCompiler) {
661        opt.optionString = "-Xint:jit";
662        mOptions.add(opt);
663#endif
664    }
665
666    if (checkDexSum) {
667        /* perform additional DEX checksum tests */
668        opt.optionString = "-Xcheckdexsum";
669        mOptions.add(opt);
670    }
671
672    if (logStdio) {
673        /* convert stdout/stderr to log messages */
674        opt.optionString = "-Xlog-stdio";
675        mOptions.add(opt);
676    }
677
678    if (enableAssertBuf[4] != '\0') {
679        /* accept "all" to mean "all classes and packages" */
680        if (strcmp(enableAssertBuf+4, "all") == 0)
681            enableAssertBuf[3] = '\0';
682        ALOGI("Assertions enabled: '%s'\n", enableAssertBuf);
683        opt.optionString = enableAssertBuf;
684        mOptions.add(opt);
685    } else {
686        ALOGV("Assertions disabled\n");
687    }
688
689    if (jniOptsBuf[10] != '\0') {
690        ALOGI("JNI options: '%s'\n", jniOptsBuf);
691        opt.optionString = jniOptsBuf;
692        mOptions.add(opt);
693    }
694
695    if (stackTraceFileBuf[0] != '\0') {
696        static const char* stfOptName = "-Xstacktracefile:";
697
698        stackTraceFile = (char*) malloc(strlen(stfOptName) +
699            strlen(stackTraceFileBuf) +1);
700        strcpy(stackTraceFile, stfOptName);
701        strcat(stackTraceFile, stackTraceFileBuf);
702        opt.optionString = stackTraceFile;
703        mOptions.add(opt);
704    }
705
706    /* extra options; parse this late so it overrides others */
707    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
708    parseExtraOpts(extraOptsBuf);
709
710    /* Set the properties for locale */
711    {
712        char langOption[sizeof("-Duser.language=") + 3];
713        char regionOption[sizeof("-Duser.region=") + 3];
714        strcpy(langOption, "-Duser.language=");
715        strcpy(regionOption, "-Duser.region=");
716        readLocale(langOption, regionOption);
717        opt.extraInfo = NULL;
718        opt.optionString = langOption;
719        mOptions.add(opt);
720        opt.optionString = regionOption;
721        mOptions.add(opt);
722    }
723
724    /*
725     * We don't have /tmp on the device, but we often have an SD card.  Apps
726     * shouldn't use this, but some test suites might want to exercise it.
727     */
728    opt.optionString = "-Djava.io.tmpdir=/sdcard";
729    mOptions.add(opt);
730
731    initArgs.version = JNI_VERSION_1_4;
732    initArgs.options = mOptions.editArray();
733    initArgs.nOptions = mOptions.size();
734    initArgs.ignoreUnrecognized = JNI_FALSE;
735
736    /*
737     * Initialize the VM.
738     *
739     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
740     * If this call succeeds, the VM is ready, and we can start issuing
741     * JNI calls.
742     */
743    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
744        ALOGE("JNI_CreateJavaVM failed\n");
745        goto bail;
746    }
747
748    result = 0;
749
750bail:
751    free(stackTraceFile);
752    return result;
753}
754
755char* AndroidRuntime::toSlashClassName(const char* className)
756{
757    char* result = strdup(className);
758    for (char* cp = result; *cp != '\0'; cp++) {
759        if (*cp == '.') {
760            *cp = '/';
761        }
762    }
763    return result;
764}
765
766/*
767 * Start the Android runtime.  This involves starting the virtual machine
768 * and calling the "static void main(String[] args)" method in the class
769 * named by "className".
770 *
771 * Passes the main function two arguments, the class name and the specified
772 * options string.
773 */
774void AndroidRuntime::start(const char* className, const char* options)
775{
776    ALOGD("\n>>>>>> AndroidRuntime START %s <<<<<<\n",
777            className != NULL ? className : "(unknown)");
778
779    blockSigpipe();
780
781    /*
782     * 'startSystemServer == true' means runtime is obsolete and not run from
783     * init.rc anymore, so we print out the boot start event here.
784     */
785    if (strcmp(options, "start-system-server") == 0) {
786        /* track our progress through the boot sequence */
787        const int LOG_BOOT_PROGRESS_START = 3000;
788        LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,
789                       ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
790    }
791
792    const char* rootDir = getenv("ANDROID_ROOT");
793    if (rootDir == NULL) {
794        rootDir = "/system";
795        if (!hasDir("/system")) {
796            LOG_FATAL("No root directory specified, and /android does not exist.");
797            return;
798        }
799        setenv("ANDROID_ROOT", rootDir, 1);
800    }
801
802    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
803    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
804
805    /* start the virtual machine */
806    JNIEnv* env;
807    if (startVm(&mJavaVM, &env) != 0) {
808        return;
809    }
810    onVmCreated(env);
811
812    /*
813     * Register android functions.
814     */
815    if (startReg(env) < 0) {
816        ALOGE("Unable to register all android natives\n");
817        return;
818    }
819
820    /*
821     * We want to call main() with a String array with arguments in it.
822     * At present we have two arguments, the class name and an option string.
823     * Create an array to hold them.
824     */
825    jclass stringClass;
826    jobjectArray strArray;
827    jstring classNameStr;
828    jstring optionsStr;
829
830    stringClass = env->FindClass("java/lang/String");
831    assert(stringClass != NULL);
832    strArray = env->NewObjectArray(2, stringClass, NULL);
833    assert(strArray != NULL);
834    classNameStr = env->NewStringUTF(className);
835    assert(classNameStr != NULL);
836    env->SetObjectArrayElement(strArray, 0, classNameStr);
837    optionsStr = env->NewStringUTF(options);
838    env->SetObjectArrayElement(strArray, 1, optionsStr);
839
840    /*
841     * Start VM.  This thread becomes the main thread of the VM, and will
842     * not return until the VM exits.
843     */
844    char* slashClassName = toSlashClassName(className);
845    jclass startClass = env->FindClass(slashClassName);
846    if (startClass == NULL) {
847        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
848        /* keep going */
849    } else {
850        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
851            "([Ljava/lang/String;)V");
852        if (startMeth == NULL) {
853            ALOGE("JavaVM unable to find main() in '%s'\n", className);
854            /* keep going */
855        } else {
856            env->CallStaticVoidMethod(startClass, startMeth, strArray);
857
858#if 0
859            if (env->ExceptionCheck())
860                threadExitUncaughtException(env);
861#endif
862        }
863    }
864    free(slashClassName);
865
866    ALOGD("Shutting down VM\n");
867    if (mJavaVM->DetachCurrentThread() != JNI_OK)
868        ALOGW("Warning: unable to detach main thread\n");
869    if (mJavaVM->DestroyJavaVM() != 0)
870        ALOGW("Warning: VM did not shut down cleanly\n");
871}
872
873void AndroidRuntime::onExit(int code)
874{
875    ALOGV("AndroidRuntime onExit calling exit(%d)", code);
876    exit(code);
877}
878
879void AndroidRuntime::onVmCreated(JNIEnv* env)
880{
881    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
882}
883
884/*
885 * Get the JNIEnv pointer for this thread.
886 *
887 * Returns NULL if the slot wasn't allocated or populated.
888 */
889/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
890{
891    JNIEnv* env;
892    JavaVM* vm = AndroidRuntime::getJavaVM();
893    assert(vm != NULL);
894
895    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
896        return NULL;
897    return env;
898}
899
900/*
901 * Makes the current thread visible to the VM.
902 *
903 * The JNIEnv pointer returned is only valid for the current thread, and
904 * thus must be tucked into thread-local storage.
905 */
906static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
907{
908    JavaVMAttachArgs args;
909    JavaVM* vm;
910    jint result;
911
912    vm = AndroidRuntime::getJavaVM();
913    assert(vm != NULL);
914
915    args.version = JNI_VERSION_1_4;
916    args.name = (char*) threadName;
917    args.group = NULL;
918
919    result = vm->AttachCurrentThread(pEnv, (void*) &args);
920    if (result != JNI_OK)
921        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
922
923    return result;
924}
925
926/*
927 * Detach the current thread from the set visible to the VM.
928 */
929static int javaDetachThread(void)
930{
931    JavaVM* vm;
932    jint result;
933
934    vm = AndroidRuntime::getJavaVM();
935    assert(vm != NULL);
936
937    result = vm->DetachCurrentThread();
938    if (result != JNI_OK)
939        ALOGE("ERROR: thread detach failed\n");
940    return result;
941}
942
943/*
944 * When starting a native thread that will be visible from the VM, we
945 * bounce through this to get the right attach/detach action.
946 * Note that this function calls free(args)
947 */
948/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
949    void* start = ((void**)args)[0];
950    void* userData = ((void **)args)[1];
951    char* name = (char*) ((void **)args)[2];        // we own this storage
952    free(args);
953    JNIEnv* env;
954    int result;
955
956    /* hook us into the VM */
957    if (javaAttachThread(name, &env) != JNI_OK)
958        return -1;
959
960    /* start the thread running */
961    result = (*(android_thread_func_t)start)(userData);
962
963    /* unhook us */
964    javaDetachThread();
965    free(name);
966
967    return result;
968}
969
970/*
971 * This is invoked from androidCreateThreadEtc() via the callback
972 * set with androidSetCreateThreadFunc().
973 *
974 * We need to create the new thread in such a way that it gets hooked
975 * into the VM before it really starts executing.
976 */
977/*static*/ int AndroidRuntime::javaCreateThreadEtc(
978                                android_thread_func_t entryFunction,
979                                void* userData,
980                                const char* threadName,
981                                int32_t threadPriority,
982                                size_t threadStackSize,
983                                android_thread_id_t* threadId)
984{
985    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
986    int result;
987
988    assert(threadName != NULL);
989
990    args[0] = (void*) entryFunction;
991    args[1] = userData;
992    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
993
994    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
995        threadName, threadPriority, threadStackSize, threadId);
996    return result;
997}
998
999/*
1000 * Create a thread that is visible from the VM.
1001 *
1002 * This is called from elsewhere in the library.
1003 */
1004/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1005    void (*start)(void *), void* arg)
1006{
1007    android_thread_id_t threadId = 0;
1008    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1009        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1010    return threadId;
1011}
1012
1013#if 0
1014static void quickTest(void* arg)
1015{
1016    const char* str = (const char*) arg;
1017
1018    printf("In quickTest: %s\n", str);
1019}
1020#endif
1021
1022#ifdef NDEBUG
1023    #define REG_JNI(name)      { name }
1024    struct RegJNIRec {
1025        int (*mProc)(JNIEnv*);
1026    };
1027#else
1028    #define REG_JNI(name)      { name, #name }
1029    struct RegJNIRec {
1030        int (*mProc)(JNIEnv*);
1031        const char* mName;
1032    };
1033#endif
1034
1035typedef void (*RegJAMProc)();
1036
1037static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1038{
1039    for (size_t i = 0; i < count; i++) {
1040        if (array[i].mProc(env) < 0) {
1041#ifndef NDEBUG
1042            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1043#endif
1044            return -1;
1045        }
1046    }
1047    return 0;
1048}
1049
1050static void register_jam_procs(const RegJAMProc array[], size_t count)
1051{
1052    for (size_t i = 0; i < count; i++) {
1053        array[i]();
1054    }
1055}
1056
1057static const RegJNIRec gRegJNI[] = {
1058    REG_JNI(register_android_debug_JNITest),
1059    REG_JNI(register_com_android_internal_os_RuntimeInit),
1060    REG_JNI(register_android_os_SystemClock),
1061    REG_JNI(register_android_util_EventLog),
1062    REG_JNI(register_android_util_Log),
1063    REG_JNI(register_android_util_FloatMath),
1064    REG_JNI(register_android_text_format_Time),
1065    REG_JNI(register_android_content_AssetManager),
1066    REG_JNI(register_android_content_StringBlock),
1067    REG_JNI(register_android_content_XmlBlock),
1068    REG_JNI(register_android_emoji_EmojiFactory),
1069    REG_JNI(register_android_text_AndroidCharacter),
1070    REG_JNI(register_android_text_AndroidBidi),
1071    REG_JNI(register_android_text_KeyCharacterMap),
1072    REG_JNI(register_android_os_Process),
1073    REG_JNI(register_android_os_SystemProperties),
1074    REG_JNI(register_android_os_Binder),
1075    REG_JNI(register_android_os_Parcel),
1076    REG_JNI(register_android_view_Display),
1077    REG_JNI(register_android_view_DisplayEventReceiver),
1078    REG_JNI(register_android_nio_utils),
1079    REG_JNI(register_android_graphics_PixelFormat),
1080    REG_JNI(register_android_graphics_Graphics),
1081    REG_JNI(register_android_view_GLES20DisplayList),
1082    REG_JNI(register_android_view_GLES20Canvas),
1083    REG_JNI(register_android_view_HardwareRenderer),
1084    REG_JNI(register_android_view_Surface),
1085    REG_JNI(register_android_view_TextureView),
1086    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1087    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1088    REG_JNI(register_android_opengl_jni_GLES10),
1089    REG_JNI(register_android_opengl_jni_GLES10Ext),
1090    REG_JNI(register_android_opengl_jni_GLES11),
1091    REG_JNI(register_android_opengl_jni_GLES11Ext),
1092    REG_JNI(register_android_opengl_jni_GLES20),
1093
1094    REG_JNI(register_android_graphics_Bitmap),
1095    REG_JNI(register_android_graphics_BitmapFactory),
1096    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1097    REG_JNI(register_android_graphics_Camera),
1098    REG_JNI(register_android_graphics_Canvas),
1099    REG_JNI(register_android_graphics_ColorFilter),
1100    REG_JNI(register_android_graphics_DrawFilter),
1101    REG_JNI(register_android_graphics_Interpolator),
1102    REG_JNI(register_android_graphics_LayerRasterizer),
1103    REG_JNI(register_android_graphics_MaskFilter),
1104    REG_JNI(register_android_graphics_Matrix),
1105    REG_JNI(register_android_graphics_Movie),
1106    REG_JNI(register_android_graphics_NinePatch),
1107    REG_JNI(register_android_graphics_Paint),
1108    REG_JNI(register_android_graphics_Path),
1109    REG_JNI(register_android_graphics_PathMeasure),
1110    REG_JNI(register_android_graphics_PathEffect),
1111    REG_JNI(register_android_graphics_Picture),
1112    REG_JNI(register_android_graphics_PorterDuff),
1113    REG_JNI(register_android_graphics_Rasterizer),
1114    REG_JNI(register_android_graphics_Region),
1115    REG_JNI(register_android_graphics_Shader),
1116    REG_JNI(register_android_graphics_SurfaceTexture),
1117    REG_JNI(register_android_graphics_Typeface),
1118    REG_JNI(register_android_graphics_Xfermode),
1119    REG_JNI(register_android_graphics_YuvImage),
1120
1121    REG_JNI(register_android_database_CursorWindow),
1122    REG_JNI(register_android_database_SQLiteConnection),
1123    REG_JNI(register_android_database_SQLiteGlobal),
1124    REG_JNI(register_android_database_SQLiteDebug),
1125    REG_JNI(register_android_os_Debug),
1126    REG_JNI(register_android_os_FileObserver),
1127    REG_JNI(register_android_os_FileUtils),
1128    REG_JNI(register_android_os_MessageQueue),
1129    REG_JNI(register_android_os_ParcelFileDescriptor),
1130    REG_JNI(register_android_os_Power),
1131    REG_JNI(register_android_os_StatFs),
1132    REG_JNI(register_android_os_Trace),
1133    REG_JNI(register_android_os_UEventObserver),
1134    REG_JNI(register_android_net_LocalSocketImpl),
1135    REG_JNI(register_android_net_NetworkUtils),
1136    REG_JNI(register_android_net_TrafficStats),
1137    REG_JNI(register_android_net_wifi_WifiManager),
1138    REG_JNI(register_android_os_MemoryFile),
1139    REG_JNI(register_com_android_internal_os_ZygoteInit),
1140    REG_JNI(register_android_hardware_Camera),
1141    REG_JNI(register_android_hardware_SensorManager),
1142    REG_JNI(register_android_hardware_SerialPort),
1143    REG_JNI(register_android_hardware_UsbDevice),
1144    REG_JNI(register_android_hardware_UsbDeviceConnection),
1145    REG_JNI(register_android_hardware_UsbRequest),
1146    REG_JNI(register_android_media_AudioRecord),
1147    REG_JNI(register_android_media_AudioSystem),
1148    REG_JNI(register_android_media_AudioTrack),
1149    REG_JNI(register_android_media_JetPlayer),
1150    REG_JNI(register_android_media_ToneGenerator),
1151
1152    REG_JNI(register_android_opengl_classes),
1153    REG_JNI(register_android_bluetooth_HeadsetBase),
1154    REG_JNI(register_android_bluetooth_BluetoothAudioGateway),
1155    REG_JNI(register_android_bluetooth_BluetoothSocket),
1156    REG_JNI(register_android_server_BluetoothService),
1157    REG_JNI(register_android_server_BluetoothEventLoop),
1158    REG_JNI(register_android_server_BluetoothA2dpService),
1159    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1160    REG_JNI(register_android_server_Watchdog),
1161    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1162    REG_JNI(register_android_backup_BackupDataInput),
1163    REG_JNI(register_android_backup_BackupDataOutput),
1164    REG_JNI(register_android_backup_FileBackupHelperBase),
1165    REG_JNI(register_android_backup_BackupHelperDispatcher),
1166    REG_JNI(register_android_app_backup_FullBackup),
1167    REG_JNI(register_android_app_ActivityThread),
1168    REG_JNI(register_android_app_NativeActivity),
1169    REG_JNI(register_android_view_InputChannel),
1170    REG_JNI(register_android_view_InputEventReceiver),
1171    REG_JNI(register_android_view_KeyEvent),
1172    REG_JNI(register_android_view_MotionEvent),
1173    REG_JNI(register_android_view_PointerIcon),
1174    REG_JNI(register_android_view_VelocityTracker),
1175
1176    REG_JNI(register_android_content_res_ObbScanner),
1177    REG_JNI(register_android_content_res_Configuration),
1178
1179    REG_JNI(register_android_animation_PropertyValuesHolder),
1180    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1181};
1182
1183/*
1184 * Register android native functions with the VM.
1185 */
1186/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1187{
1188    /*
1189     * This hook causes all future threads created in this process to be
1190     * attached to the JavaVM.  (This needs to go away in favor of JNI
1191     * Attach calls.)
1192     */
1193    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1194
1195    ALOGV("--- registering native functions ---\n");
1196
1197    /*
1198     * Every "register" function calls one or more things that return
1199     * a local reference (e.g. FindClass).  Because we haven't really
1200     * started the VM yet, they're all getting stored in the base frame
1201     * and never released.  Use Push/Pop to manage the storage.
1202     */
1203    env->PushLocalFrame(200);
1204
1205    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1206        env->PopLocalFrame(NULL);
1207        return -1;
1208    }
1209    env->PopLocalFrame(NULL);
1210
1211    //createJavaThread("fubar", quickTest, (void*) "hello");
1212
1213    return 0;
1214}
1215
1216AndroidRuntime* AndroidRuntime::getRuntime()
1217{
1218    return gCurRuntime;
1219}
1220
1221/**
1222 * Used by WithFramework to register native functions.
1223 */
1224extern "C"
1225jint Java_com_android_internal_util_WithFramework_registerNatives(
1226        JNIEnv* env, jclass clazz) {
1227    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1228}
1229
1230/**
1231 * Used by LoadClass to register native functions.
1232 */
1233extern "C"
1234jint Java_LoadClass_registerNatives(JNIEnv* env, jclass clazz) {
1235    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1236}
1237
1238}   // namespace android
1239