AndroidRuntime.cpp revision 0a0f23163a7a62900d46c7f81d109320d73d6c6b 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define ATRACE_TAG ATRACE_TAG_DALVIK
18#define LOG_TAG "AndroidRuntime"
19//#define LOG_NDEBUG 0
20
21#include <android_runtime/AndroidRuntime.h>
22#include <binder/IBinder.h>
23#include <binder/IPCThreadState.h>
24#include <binder/IServiceManager.h>
25#include <utils/Log.h>
26#include <utils/misc.h>
27#include <utils/Trace.h>
28#include <binder/Parcel.h>
29#include <utils/threads.h>
30#include <cutils/properties.h>
31
32#include <SkGraphics.h>
33
34#include "jni.h"
35#include "JNIHelp.h"
36#include "JniInvocation.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#include <string>
48#include <vector>
49
50
51using namespace android;
52
53extern int register_android_os_Binder(JNIEnv* env);
54extern int register_android_os_Process(JNIEnv* env);
55extern int register_android_graphics_Bitmap(JNIEnv*);
56extern int register_android_graphics_BitmapFactory(JNIEnv*);
57extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
58extern int register_android_graphics_Camera(JNIEnv* env);
59extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
60extern int register_android_graphics_GraphicBuffer(JNIEnv* env);
61extern int register_android_graphics_Graphics(JNIEnv* env);
62extern int register_android_graphics_Interpolator(JNIEnv* env);
63extern int register_android_graphics_MaskFilter(JNIEnv* env);
64extern int register_android_graphics_Movie(JNIEnv* env);
65extern int register_android_graphics_NinePatch(JNIEnv*);
66extern int register_android_graphics_PathEffect(JNIEnv* env);
67extern int register_android_graphics_Shader(JNIEnv* env);
68extern int register_android_graphics_Typeface(JNIEnv* env);
69extern int register_android_graphics_YuvImage(JNIEnv* env);
70
71extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
72extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
73extern int register_android_opengl_jni_EGL14(JNIEnv* env);
74extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
75extern int register_android_opengl_jni_GLES10(JNIEnv* env);
76extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
77extern int register_android_opengl_jni_GLES11(JNIEnv* env);
78extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
79extern int register_android_opengl_jni_GLES20(JNIEnv* env);
80extern int register_android_opengl_jni_GLES30(JNIEnv* env);
81extern int register_android_opengl_jni_GLES31(JNIEnv* env);
82extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
83extern int register_android_opengl_jni_GLES32(JNIEnv* env);
84
85extern int register_android_hardware_Camera(JNIEnv *env);
86extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
87extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env);
88extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env);
89extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
90extern int register_android_hardware_Radio(JNIEnv *env);
91extern int register_android_hardware_SensorManager(JNIEnv *env);
92extern int register_android_hardware_SerialPort(JNIEnv *env);
93extern int register_android_hardware_SoundTrigger(JNIEnv *env);
94extern int register_android_hardware_UsbDevice(JNIEnv *env);
95extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
96extern int register_android_hardware_UsbRequest(JNIEnv *env);
97extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
98
99extern int register_android_media_AudioRecord(JNIEnv *env);
100extern int register_android_media_AudioSystem(JNIEnv *env);
101extern int register_android_media_AudioTrack(JNIEnv *env);
102extern int register_android_media_JetPlayer(JNIEnv *env);
103extern int register_android_media_ToneGenerator(JNIEnv *env);
104
105namespace android {
106
107/*
108 * JNI-based registration functions.  Note these are properly contained in
109 * namespace android.
110 */
111extern int register_android_app_admin_SecurityLog(JNIEnv* env);
112extern int register_android_content_AssetManager(JNIEnv* env);
113extern int register_android_util_EventLog(JNIEnv* env);
114extern int register_android_util_Log(JNIEnv* env);
115extern int register_android_util_MemoryIntArray(JNIEnv* env);
116extern int register_android_util_PathParser(JNIEnv* env);
117extern int register_android_content_StringBlock(JNIEnv* env);
118extern int register_android_content_XmlBlock(JNIEnv* env);
119extern int register_android_graphics_Canvas(JNIEnv* env);
120extern int register_android_graphics_CanvasProperty(JNIEnv* env);
121extern int register_android_graphics_ColorFilter(JNIEnv* env);
122extern int register_android_graphics_DrawFilter(JNIEnv* env);
123extern int register_android_graphics_FontFamily(JNIEnv* env);
124extern int register_android_graphics_Matrix(JNIEnv* env);
125extern int register_android_graphics_Paint(JNIEnv* env);
126extern int register_android_graphics_Path(JNIEnv* env);
127extern int register_android_graphics_PathMeasure(JNIEnv* env);
128extern int register_android_graphics_Picture(JNIEnv*);
129extern int register_android_graphics_Region(JNIEnv* env);
130extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
131extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env);
132extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
133extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
134extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
135extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
136extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
137extern int register_android_view_DisplayListCanvas(JNIEnv* env);
138extern int register_android_view_HardwareLayer(JNIEnv* env);
139extern int register_android_view_RenderNode(JNIEnv* env);
140extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
141extern int register_android_view_Surface(JNIEnv* env);
142extern int register_android_view_SurfaceControl(JNIEnv* env);
143extern int register_android_view_SurfaceSession(JNIEnv* env);
144extern int register_android_view_TextureView(JNIEnv* env);
145extern int register_android_view_ThreadedRenderer(JNIEnv* env);
146extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
147extern int register_android_database_CursorWindow(JNIEnv* env);
148extern int register_android_database_SQLiteConnection(JNIEnv* env);
149extern int register_android_database_SQLiteGlobal(JNIEnv* env);
150extern int register_android_database_SQLiteDebug(JNIEnv* env);
151extern int register_android_nio_utils(JNIEnv* env);
152extern int register_android_os_Debug(JNIEnv* env);
153extern int register_android_os_HwBinder(JNIEnv *env);
154extern int register_android_os_HwBlob(JNIEnv *env);
155extern int register_android_os_HwParcel(JNIEnv *env);
156extern int register_android_os_HwRemoteBinder(JNIEnv *env);
157extern int register_android_os_MessageQueue(JNIEnv* env);
158extern int register_android_os_Parcel(JNIEnv* env);
159extern int register_android_os_SELinux(JNIEnv* env);
160extern int register_android_os_SystemProperties(JNIEnv *env);
161extern int register_android_os_SystemClock(JNIEnv* env);
162extern int register_android_os_Trace(JNIEnv* env);
163extern int register_android_os_FileObserver(JNIEnv *env);
164extern int register_android_os_UEventObserver(JNIEnv* env);
165extern int register_android_os_MemoryFile(JNIEnv* env);
166extern int register_android_net_LocalSocketImpl(JNIEnv* env);
167extern int register_android_net_NetworkUtils(JNIEnv* env);
168extern int register_android_net_TrafficStats(JNIEnv* env);
169extern int register_android_text_AndroidCharacter(JNIEnv *env);
170extern int register_android_text_StaticLayout(JNIEnv *env);
171extern int register_android_text_AndroidBidi(JNIEnv *env);
172extern int register_android_opengl_classes(JNIEnv *env);
173extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
174extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
175extern int register_android_backup_BackupDataInput(JNIEnv *env);
176extern int register_android_backup_BackupDataOutput(JNIEnv *env);
177extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
178extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
179extern int register_android_app_backup_FullBackup(JNIEnv *env);
180extern int register_android_app_Activity(JNIEnv *env);
181extern int register_android_app_ActivityThread(JNIEnv *env);
182extern int register_android_app_ApplicationLoaders(JNIEnv *env);
183extern int register_android_app_NativeActivity(JNIEnv *env);
184extern int register_android_media_RemoteDisplay(JNIEnv *env);
185extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
186extern int register_android_view_InputChannel(JNIEnv* env);
187extern int register_android_view_InputDevice(JNIEnv* env);
188extern int register_android_view_InputEventReceiver(JNIEnv* env);
189extern int register_android_view_InputEventSender(JNIEnv* env);
190extern int register_android_view_InputQueue(JNIEnv* env);
191extern int register_android_view_KeyCharacterMap(JNIEnv *env);
192extern int register_android_view_KeyEvent(JNIEnv* env);
193extern int register_android_view_MotionEvent(JNIEnv* env);
194extern int register_android_view_PointerIcon(JNIEnv* env);
195extern int register_android_view_VelocityTracker(JNIEnv* env);
196extern int register_android_content_res_ObbScanner(JNIEnv* env);
197extern int register_android_content_res_Configuration(JNIEnv* env);
198extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
199extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
200extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
201extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env);
202extern int register_com_android_internal_os_PathClassLoaderFactory(JNIEnv* env);
203extern int register_com_android_internal_os_Zygote(JNIEnv *env);
204extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
205
206static AndroidRuntime* gCurRuntime = NULL;
207
208/*
209 * Code written in the Java Programming Language calls here from main().
210 */
211static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
212{
213    gCurRuntime->onStarted();
214}
215
216static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
217{
218    gCurRuntime->onZygoteInit();
219}
220
221static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
222        jobject clazz, jboolean exitWithoutCleanup)
223{
224    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
225}
226
227/*
228 * JNI registration.
229 */
230static const JNINativeMethod gMethods[] = {
231    { "nativeFinishInit", "()V",
232        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
233    { "nativeZygoteInit", "()V",
234        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
235    { "nativeSetExitWithoutCleanup", "(Z)V",
236        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
237};
238
239int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
240{
241    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
242        gMethods, NELEM(gMethods));
243}
244
245// ----------------------------------------------------------------------
246
247/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
248
249AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
250        mExitWithoutCleanup(false),
251        mArgBlockStart(argBlockStart),
252        mArgBlockLength(argBlockLength)
253{
254    SkGraphics::Init();
255    // There is also a global font cache, but its budget is specified by
256    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
257
258    // Pre-allocate enough space to hold a fair number of options.
259    mOptions.setCapacity(20);
260
261    assert(gCurRuntime == NULL);        // one per process
262    gCurRuntime = this;
263}
264
265AndroidRuntime::~AndroidRuntime()
266{
267    SkGraphics::Term();
268}
269
270/*
271 * Register native methods using JNI.
272 */
273/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
274    const char* className, const JNINativeMethod* gMethods, int numMethods)
275{
276    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
277}
278
279void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
280    if (setProcName) {
281        int len = strlen(argv0);
282        if (len < 15) {
283            pthread_setname_np(pthread_self(), argv0);
284        } else {
285            pthread_setname_np(pthread_self(), argv0 + len - 15);
286        }
287    }
288    memset(mArgBlockStart, 0, mArgBlockLength);
289    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
290}
291
292status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
293    const Vector<String8>& args)
294{
295    JNIEnv* env;
296    jmethodID methodId;
297
298    ALOGD("Calling main entry %s", className.string());
299
300    env = getJNIEnv();
301    if (clazz == NULL || env == NULL) {
302        return UNKNOWN_ERROR;
303    }
304
305    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
306    if (methodId == NULL) {
307        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
308        return UNKNOWN_ERROR;
309    }
310
311    /*
312     * We want to call main() with a String array with our arguments in it.
313     * Create an array and populate it.
314     */
315    jclass stringClass;
316    jobjectArray strArray;
317
318    const size_t numArgs = args.size();
319    stringClass = env->FindClass("java/lang/String");
320    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
321
322    for (size_t i = 0; i < numArgs; i++) {
323        jstring argStr = env->NewStringUTF(args[i].string());
324        env->SetObjectArrayElement(strArray, i, argStr);
325    }
326
327    env->CallStaticVoidMethod(clazz, methodId, strArray);
328    return NO_ERROR;
329}
330
331/*
332 * The VM calls this through the "exit" hook.
333 */
334static void runtime_exit(int code)
335{
336    gCurRuntime->exit(code);
337}
338
339/*
340 * The VM calls this through the "vfprintf" hook.
341 *
342 * We ignore "fp" and just write the results to the log file.
343 */
344static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
345{
346    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
347}
348
349/**
350 * The VM calls this when mutex contention debugging is enabled to
351 * determine whether or not the blocked thread was a "sensitive thread"
352 * for user responsiveness/smoothess.
353 *
354 * Our policy for this is whether or not we're tracing any StrictMode
355 * events on this thread (which we might've inherited via Binder calls
356 * into us)
357 */
358static bool runtime_isSensitiveThread() {
359    IPCThreadState* state = IPCThreadState::selfOrNull();
360    return state && state->getStrictModePolicy() != 0;
361}
362
363static int hasDir(const char* dir)
364{
365    struct stat s;
366    int res = stat(dir, &s);
367    if (res == 0) {
368        return S_ISDIR(s.st_mode);
369    }
370    return 0;
371}
372
373static bool hasFile(const char* file) {
374    struct stat s;
375    int res = stat(file, &s);
376    if (res == 0) {
377        return S_ISREG(s.st_mode);
378    }
379    return false;
380}
381
382// Convenience wrapper over the property API that returns an
383// std::string.
384std::string getProperty(const char* key, const char* defaultValue) {
385    std::vector<char> temp(PROPERTY_VALUE_MAX);
386    const int len = property_get(key, &temp[0], defaultValue);
387    if (len < 0) {
388        return "";
389    }
390    return std::string(&temp[0], len);
391}
392
393/*
394 * Read the persistent locale. Inspects the following system properties
395 * (in order) and returns the first non-empty property in the list :
396 *
397 * (1) persist.sys.locale
398 * (2) persist.sys.language/country/localevar (country and localevar are
399 * inspected iff. language is non-empty.
400 * (3) ro.product.locale
401 * (4) ro.product.locale.language/region
402 *
403 * Note that we need to inspect persist.sys.language/country/localevar to
404 * preserve language settings for devices that are upgrading from Lollipop
405 * to M. The same goes for ro.product.locale.language/region as well.
406 */
407const std::string readLocale()
408{
409    const std::string locale = getProperty("persist.sys.locale", "");
410    if (!locale.empty()) {
411        return locale;
412    }
413
414    const std::string language = getProperty("persist.sys.language", "");
415    if (!language.empty()) {
416        const std::string country = getProperty("persist.sys.country", "");
417        const std::string variant = getProperty("persist.sys.localevar", "");
418
419        std::string out = language;
420        if (!country.empty()) {
421            out = out + "-" + country;
422        }
423
424        if (!variant.empty()) {
425            out = out + "-" + variant;
426        }
427
428        return out;
429    }
430
431    const std::string productLocale = getProperty("ro.product.locale", "");
432    if (!productLocale.empty()) {
433        return productLocale;
434    }
435
436    // If persist.sys.locale and ro.product.locale are missing,
437    // construct a locale value from the individual locale components.
438    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
439    const std::string productRegion = getProperty("ro.product.locale.region", "US");
440
441    return productLanguage + "-" + productRegion;
442}
443
444void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
445{
446    JavaVMOption opt;
447    opt.optionString = optionString;
448    opt.extraInfo = extraInfo;
449    mOptions.add(opt);
450}
451
452/*
453 * Parse a property containing space-separated options that should be
454 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
455 *
456 * This will cut up "extraOptsBuf" as we chop it into individual options.
457 *
458 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
459 *
460 * Adds the strings, if any, to mOptions.
461 */
462void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
463{
464    char* start = extraOptsBuf;
465    char* end = NULL;
466    while (*start != '\0') {
467        while (*start == ' ')                   /* skip leading whitespace */
468            start++;
469        if (*start == '\0')                     /* was trailing ws, bail */
470            break;
471
472        end = start+1;
473        while (*end != ' ' && *end != '\0')     /* find end of token */
474            end++;
475        if (*end == ' ')
476            *end++ = '\0';          /* mark end, advance to indicate more */
477
478        if (quotingArg != NULL) {
479            addOption(quotingArg);
480        }
481        addOption(start);
482        start = end;
483    }
484}
485
486/*
487 * Reads a "property" into "buffer" with a default of "defaultArg". If
488 * the property is non-empty, it is treated as a runtime option such
489 * as "-Xmx32m".
490 *
491 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
492 *
493 * If an argument is found, it is added to mOptions.
494 *
495 * If an option is found, it is added to mOptions and true is
496 * returned. Otherwise false is returned.
497 */
498bool AndroidRuntime::parseRuntimeOption(const char* property,
499                                        char* buffer,
500                                        const char* runtimeArg,
501                                        const char* defaultArg)
502{
503    strcpy(buffer, runtimeArg);
504    size_t runtimeArgLen = strlen(runtimeArg);
505    property_get(property, buffer+runtimeArgLen, defaultArg);
506    if (buffer[runtimeArgLen] == '\0') {
507        return false;
508    }
509    addOption(buffer);
510    return true;
511}
512
513/*
514 * Reads a "property" into "buffer". If the property is non-empty, it
515 * is treated as a dex2oat compiler option that should be
516 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
517 *
518 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
519 *
520 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
521 *
522 * If an option is found, it is added to mOptions and true is
523 * returned. Otherwise false is returned.
524 */
525bool AndroidRuntime::parseCompilerOption(const char* property,
526                                         char* buffer,
527                                         const char* compilerArg,
528                                         const char* quotingArg)
529{
530    strcpy(buffer, compilerArg);
531    size_t compilerArgLen = strlen(compilerArg);
532    property_get(property, buffer+compilerArgLen, "");
533    if (buffer[compilerArgLen] == '\0') {
534        return false;
535    }
536    addOption(quotingArg);
537    addOption(buffer);
538    return true;
539}
540
541/*
542 * Reads a "property" into "buffer". If the property is non-empty, it
543 * is treated as a dex2oat compiler runtime option that should be
544 * passed as a quoted option, e.g. "-Ximage-compiler-option
545 * --runtime-arg -Ximage-compiler-option -Xmx32m".
546 *
547 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
548 *
549 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
550 *
551 * If an option is found, it is added to mOptions and true is
552 * returned. Otherwise false is returned.
553 */
554bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
555                                                char* buffer,
556                                                const char* runtimeArg,
557                                                const char* quotingArg)
558{
559    strcpy(buffer, runtimeArg);
560    size_t runtimeArgLen = strlen(runtimeArg);
561    property_get(property, buffer+runtimeArgLen, "");
562    if (buffer[runtimeArgLen] == '\0') {
563        return false;
564    }
565    addOption(quotingArg);
566    addOption("--runtime-arg");
567    addOption(quotingArg);
568    addOption(buffer);
569    return true;
570}
571
572/*
573 * Start the Dalvik Virtual Machine.
574 *
575 * Various arguments, most determined by system properties, are passed in.
576 * The "mOptions" vector is updated.
577 *
578 * CAUTION: when adding options in here, be careful not to put the
579 * char buffer inside a nested scope.  Adding the buffer to the
580 * options using mOptions.add() does not copy the buffer, so if the
581 * buffer goes out of scope the option may be overwritten.  It's best
582 * to put the buffer at the top of the function so that it is more
583 * unlikely that someone will surround it in a scope at a later time
584 * and thus introduce a bug.
585 *
586 * Returns 0 on success.
587 */
588int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
589{
590    JavaVMInitArgs initArgs;
591    char propBuf[PROPERTY_VALUE_MAX];
592    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
593    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
594    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
595    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
596    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
597    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
598    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
599    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
600    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
601    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
602    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
603    char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
604    char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
605    char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
606    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
607    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
608    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
609    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
610    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
611    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
612    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
613    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
614    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
615    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
616    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
617    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
618    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
619    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
620    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
621    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
622    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
623    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
624    char extraOptsBuf[PROPERTY_VALUE_MAX];
625    char voldDecryptBuf[PROPERTY_VALUE_MAX];
626    enum {
627      kEMDefault,
628      kEMIntPortable,
629      kEMIntFast,
630      kEMJitCompiler,
631    } executionMode = kEMDefault;
632    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
633    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
634    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
635    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
636    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
637    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
638    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
639
640    bool checkJni = false;
641    property_get("dalvik.vm.checkjni", propBuf, "");
642    if (strcmp(propBuf, "true") == 0) {
643        checkJni = true;
644    } else if (strcmp(propBuf, "false") != 0) {
645        /* property is neither true nor false; fall back on kernel parameter */
646        property_get("ro.kernel.android.checkjni", propBuf, "");
647        if (propBuf[0] == '1') {
648            checkJni = true;
649        }
650    }
651    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
652    if (checkJni) {
653        /* extended JNI checking */
654        addOption("-Xcheck:jni");
655
656        /* with -Xcheck:jni, this provides a JNI function call trace */
657        //addOption("-verbose:jni");
658    }
659
660    property_get("dalvik.vm.execution-mode", propBuf, "");
661    if (strcmp(propBuf, "int:portable") == 0) {
662        executionMode = kEMIntPortable;
663    } else if (strcmp(propBuf, "int:fast") == 0) {
664        executionMode = kEMIntFast;
665    } else if (strcmp(propBuf, "int:jit") == 0) {
666        executionMode = kEMJitCompiler;
667    }
668
669    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
670
671    strcpy(jniOptsBuf, "-Xjniopts:");
672    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
673        ALOGI("JNI options: '%s'\n", jniOptsBuf);
674    }
675
676    /* route exit() to our handler */
677    addOption("exit", (void*) runtime_exit);
678
679    /* route fprintf() to our handler */
680    addOption("vfprintf", (void*) runtime_vfprintf);
681
682    /* register the framework-specific "is sensitive thread" hook */
683    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
684
685    /* enable verbose; standard options are { jni, gc, class } */
686    //addOption("-verbose:jni");
687    addOption("-verbose:gc");
688    //addOption("-verbose:class");
689
690    /*
691     * The default starting and maximum size of the heap.  Larger
692     * values should be specified in a product property override.
693     */
694    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
695    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
696
697    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
698    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
699    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
700    parseRuntimeOption("dalvik.vm.heaptargetutilization",
701                       heaptargetutilizationOptsBuf,
702                       "-XX:HeapTargetUtilization=");
703
704    /*
705     * JIT related options.
706     */
707    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
708    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
709    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
710    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
711    property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
712    if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
713        addOption("-Xjitsaveprofilinginfo");
714    }
715
716    parseRuntimeOption("dalvik.vm.jitprithreadweight",
717                       jitprithreadweightOptBuf,
718                       "-Xjitprithreadweight:");
719
720    parseRuntimeOption("dalvik.vm.jittransitionweight",
721                       jittransitionweightOptBuf,
722                       "-Xjittransitionweight:");
723
724    property_get("ro.config.low_ram", propBuf, "");
725    if (strcmp(propBuf, "true") == 0) {
726      addOption("-XX:LowMemoryMode");
727    }
728
729    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
730    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
731
732    /*
733     * Enable debugging only for apps forked from zygote.
734     * Set suspend=y to pause during VM init and use android ADB transport.
735     */
736    if (zygote) {
737      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
738    }
739
740    parseRuntimeOption("dalvik.vm.lockprof.threshold",
741                       lockProfThresholdBuf,
742                       "-Xlockprofthreshold:");
743
744    if (executionMode == kEMIntPortable) {
745        addOption("-Xint:portable");
746    } else if (executionMode == kEMIntFast) {
747        addOption("-Xint:fast");
748    } else if (executionMode == kEMJitCompiler) {
749        addOption("-Xint:jit");
750    }
751
752    // If we are booting without the real /data, don't spend time compiling.
753    property_get("vold.decrypt", voldDecryptBuf, "");
754    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
755                             (strcmp(voldDecryptBuf, "1") == 0));
756
757    // Extra options for boot.art/boot.oat image generation.
758    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
759                               "-Xms", "-Ximage-compiler-option");
760    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
761                               "-Xmx", "-Ximage-compiler-option");
762    if (skip_compilation) {
763        addOption("-Ximage-compiler-option");
764        addOption("--compiler-filter=verify-none");
765    } else {
766        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
767                            "--compiler-filter=", "-Ximage-compiler-option");
768    }
769
770    // Make sure there is a preloaded-classes file.
771    if (!hasFile("/system/etc/preloaded-classes")) {
772        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
773              strerror(errno));
774        return -1;
775    }
776    addOption("-Ximage-compiler-option");
777    addOption("--image-classes=/system/etc/preloaded-classes");
778
779    // If there is a compiled-classes file, push it.
780    if (hasFile("/system/etc/compiled-classes")) {
781        addOption("-Ximage-compiler-option");
782        addOption("--compiled-classes=/system/etc/compiled-classes");
783    }
784
785    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
786    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
787
788    // Extra options for DexClassLoader.
789    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
790                               "-Xms", "-Xcompiler-option");
791    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
792                               "-Xmx", "-Xcompiler-option");
793    if (skip_compilation) {
794        addOption("-Xcompiler-option");
795        addOption("--compiler-filter=verify-none");
796
797        // We skip compilation when a minimal runtime is brought up for decryption. In that case
798        // /data is temporarily backed by a tmpfs, which is usually small.
799        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
800        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
801        // directly instead.
802        addOption("--runtime-arg");
803        addOption("-Xnorelocate");
804    } else {
805        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
806                            "--compiler-filter=", "-Xcompiler-option");
807    }
808    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
809    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
810                        "-Ximage-compiler-option");
811
812    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
813    // pass the instruction-set-features/variant as an image-compiler-option.
814    // TODO: Find a better way for the instruction-set.
815#if defined(__arm__)
816    constexpr const char* instruction_set = "arm";
817#elif defined(__aarch64__)
818    constexpr const char* instruction_set = "arm64";
819#elif defined(__mips__) && !defined(__LP64__)
820    constexpr const char* instruction_set = "mips";
821#elif defined(__mips__) && defined(__LP64__)
822    constexpr const char* instruction_set = "mips64";
823#elif defined(__i386__)
824    constexpr const char* instruction_set = "x86";
825#elif defined(__x86_64__)
826    constexpr const char* instruction_set = "x86_64";
827#else
828    constexpr const char* instruction_set = "unknown";
829#endif
830    // Note: it is OK to reuse the buffer, as the values are exactly the same between
831    //       * compiler-option, used for runtime compilation (DexClassLoader)
832    //       * image-compiler-option, used for boot-image compilation on device
833
834    // Copy the variant.
835    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
836    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
837                        "--instruction-set-variant=", "-Ximage-compiler-option");
838    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
839                        "--instruction-set-variant=", "-Xcompiler-option");
840    // Copy the features.
841    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
842    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
843                        "--instruction-set-features=", "-Ximage-compiler-option");
844    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
845                        "--instruction-set-features=", "-Xcompiler-option");
846
847
848    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
849    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
850
851    /* extra options; parse this late so it overrides others */
852    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
853    parseExtraOpts(extraOptsBuf, NULL);
854
855    /* Set the properties for locale */
856    {
857        strcpy(localeOption, "-Duser.locale=");
858        const std::string locale = readLocale();
859        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
860        addOption(localeOption);
861    }
862
863    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
864    property_get("ro.debuggable", propBuf, "0");
865    if (strcmp(propBuf, "1") == 0) {
866        property_get("dalvik.vm.method-trace", propBuf, "false");
867        if (strcmp(propBuf, "true") == 0) {
868            addOption("-Xmethod-trace");
869            parseRuntimeOption("dalvik.vm.method-trace-file",
870                               methodTraceFileBuf,
871                               "-Xmethod-trace-file:");
872            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
873                               methodTraceFileSizeBuf,
874                               "-Xmethod-trace-file-size:");
875            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
876            if (strcmp(propBuf, "true") == 0) {
877                addOption("-Xmethod-trace-stream");
878            }
879        }
880    }
881
882    // Native bridge library. "0" means that native bridge is disabled.
883    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
884    if (propBuf[0] == '\0') {
885        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
886    } else if (strcmp(propBuf, "0") != 0) {
887        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
888                 "-XX:NativeBridge=%s", propBuf);
889        addOption(nativeBridgeLibrary);
890    }
891
892#if defined(__LP64__)
893    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
894#else
895    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
896#endif  // defined(__LP64__)
897    property_get(cpu_abilist_property_name, propBuf, "");
898    if (propBuf[0] == '\0') {
899        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
900        return -1;
901    }
902    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
903    addOption(cpuAbiListBuf);
904
905    // Dalvik-cache pruning counter.
906    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
907                       "-Xzygote-max-boot-retry=");
908
909    /*
910     * When running with debug.generate-debug-info, add --generate-debug-info to
911     * the compiler options so that the boot image, if it is compiled on device,
912     * will include native debugging information.
913     */
914    property_get("debug.generate-debug-info", propBuf, "");
915    if (strcmp(propBuf, "true") == 0) {
916        addOption("-Xcompiler-option");
917        addOption("--generate-debug-info");
918        addOption("-Ximage-compiler-option");
919        addOption("--generate-debug-info");
920    }
921
922    /*
923     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
924     * contain the fingerprint and can be parsed.
925     */
926    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
927
928    initArgs.version = JNI_VERSION_1_4;
929    initArgs.options = mOptions.editArray();
930    initArgs.nOptions = mOptions.size();
931    initArgs.ignoreUnrecognized = JNI_FALSE;
932
933    /*
934     * Initialize the VM.
935     *
936     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
937     * If this call succeeds, the VM is ready, and we can start issuing
938     * JNI calls.
939     */
940    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
941        ALOGE("JNI_CreateJavaVM failed\n");
942        return -1;
943    }
944
945    return 0;
946}
947
948char* AndroidRuntime::toSlashClassName(const char* className)
949{
950    char* result = strdup(className);
951    for (char* cp = result; *cp != '\0'; cp++) {
952        if (*cp == '.') {
953            *cp = '/';
954        }
955    }
956    return result;
957}
958
959/** Create a Java string from an ASCII or Latin-1 string */
960jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
961    if (!bytes) return NULL;
962    int length = strlen(bytes);
963    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
964    if (!buffer) return NULL;
965    jchar* chp = buffer;
966    for (int i = 0; i < length; i++) {
967        *chp++ = *bytes++;
968    }
969    return env->NewString(buffer, length);
970}
971
972
973/*
974 * Start the Android runtime.  This involves starting the virtual machine
975 * and calling the "static void main(String[] args)" method in the class
976 * named by "className".
977 *
978 * Passes the main function two arguments, the class name and the specified
979 * options string.
980 */
981void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
982{
983    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
984            className != NULL ? className : "(unknown)", getuid());
985
986    static const String8 startSystemServer("start-system-server");
987
988    /*
989     * 'startSystemServer == true' means runtime is obsolete and not run from
990     * init.rc anymore, so we print out the boot start event here.
991     */
992    for (size_t i = 0; i < options.size(); ++i) {
993        if (options[i] == startSystemServer) {
994           /* track our progress through the boot sequence */
995           const int LOG_BOOT_PROGRESS_START = 3000;
996           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
997        }
998    }
999
1000    const char* rootDir = getenv("ANDROID_ROOT");
1001    if (rootDir == NULL) {
1002        rootDir = "/system";
1003        if (!hasDir("/system")) {
1004            LOG_FATAL("No root directory specified, and /android does not exist.");
1005            return;
1006        }
1007        setenv("ANDROID_ROOT", rootDir, 1);
1008    }
1009
1010    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1011    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1012
1013    /* start the virtual machine */
1014    JniInvocation jni_invocation;
1015    jni_invocation.Init(NULL);
1016    JNIEnv* env;
1017    if (startVm(&mJavaVM, &env, zygote) != 0) {
1018        return;
1019    }
1020    onVmCreated(env);
1021
1022    /*
1023     * Register android functions.
1024     */
1025    if (startReg(env) < 0) {
1026        ALOGE("Unable to register all android natives\n");
1027        return;
1028    }
1029
1030    /*
1031     * We want to call main() with a String array with arguments in it.
1032     * At present we have two arguments, the class name and an option string.
1033     * Create an array to hold them.
1034     */
1035    jclass stringClass;
1036    jobjectArray strArray;
1037    jstring classNameStr;
1038
1039    stringClass = env->FindClass("java/lang/String");
1040    assert(stringClass != NULL);
1041    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1042    assert(strArray != NULL);
1043    classNameStr = env->NewStringUTF(className);
1044    assert(classNameStr != NULL);
1045    env->SetObjectArrayElement(strArray, 0, classNameStr);
1046
1047    for (size_t i = 0; i < options.size(); ++i) {
1048        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1049        assert(optionsStr != NULL);
1050        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1051    }
1052
1053    /*
1054     * Start VM.  This thread becomes the main thread of the VM, and will
1055     * not return until the VM exits.
1056     */
1057    char* slashClassName = toSlashClassName(className);
1058    jclass startClass = env->FindClass(slashClassName);
1059    if (startClass == NULL) {
1060        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1061        /* keep going */
1062    } else {
1063        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1064            "([Ljava/lang/String;)V");
1065        if (startMeth == NULL) {
1066            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1067            /* keep going */
1068        } else {
1069            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1070
1071#if 0
1072            if (env->ExceptionCheck())
1073                threadExitUncaughtException(env);
1074#endif
1075        }
1076    }
1077    free(slashClassName);
1078
1079    ALOGD("Shutting down VM\n");
1080    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1081        ALOGW("Warning: unable to detach main thread\n");
1082    if (mJavaVM->DestroyJavaVM() != 0)
1083        ALOGW("Warning: VM did not shut down cleanly\n");
1084}
1085
1086void AndroidRuntime::exit(int code)
1087{
1088    if (mExitWithoutCleanup) {
1089        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1090        ::_exit(code);
1091    } else {
1092        ALOGI("VM exiting with result code %d.", code);
1093        onExit(code);
1094        ::exit(code);
1095    }
1096}
1097
1098void AndroidRuntime::onVmCreated(JNIEnv* env)
1099{
1100    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1101}
1102
1103/*
1104 * Get the JNIEnv pointer for this thread.
1105 *
1106 * Returns NULL if the slot wasn't allocated or populated.
1107 */
1108/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1109{
1110    JNIEnv* env;
1111    JavaVM* vm = AndroidRuntime::getJavaVM();
1112    assert(vm != NULL);
1113
1114    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1115        return NULL;
1116    return env;
1117}
1118
1119/*
1120 * Makes the current thread visible to the VM.
1121 *
1122 * The JNIEnv pointer returned is only valid for the current thread, and
1123 * thus must be tucked into thread-local storage.
1124 */
1125static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1126{
1127    JavaVMAttachArgs args;
1128    JavaVM* vm;
1129    jint result;
1130
1131    vm = AndroidRuntime::getJavaVM();
1132    assert(vm != NULL);
1133
1134    args.version = JNI_VERSION_1_4;
1135    args.name = (char*) threadName;
1136    args.group = NULL;
1137
1138    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1139    if (result != JNI_OK)
1140        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1141
1142    return result;
1143}
1144
1145/*
1146 * Detach the current thread from the set visible to the VM.
1147 */
1148static int javaDetachThread(void)
1149{
1150    JavaVM* vm;
1151    jint result;
1152
1153    vm = AndroidRuntime::getJavaVM();
1154    assert(vm != NULL);
1155
1156    result = vm->DetachCurrentThread();
1157    if (result != JNI_OK)
1158        ALOGE("ERROR: thread detach failed\n");
1159    return result;
1160}
1161
1162/*
1163 * When starting a native thread that will be visible from the VM, we
1164 * bounce through this to get the right attach/detach action.
1165 * Note that this function calls free(args)
1166 */
1167/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1168    void* start = ((void**)args)[0];
1169    void* userData = ((void **)args)[1];
1170    char* name = (char*) ((void **)args)[2];        // we own this storage
1171    free(args);
1172    JNIEnv* env;
1173    int result;
1174
1175    /* hook us into the VM */
1176    if (javaAttachThread(name, &env) != JNI_OK)
1177        return -1;
1178
1179    /* start the thread running */
1180    result = (*(android_thread_func_t)start)(userData);
1181
1182    /* unhook us */
1183    javaDetachThread();
1184    free(name);
1185
1186    return result;
1187}
1188
1189/*
1190 * This is invoked from androidCreateThreadEtc() via the callback
1191 * set with androidSetCreateThreadFunc().
1192 *
1193 * We need to create the new thread in such a way that it gets hooked
1194 * into the VM before it really starts executing.
1195 */
1196/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1197                                android_thread_func_t entryFunction,
1198                                void* userData,
1199                                const char* threadName,
1200                                int32_t threadPriority,
1201                                size_t threadStackSize,
1202                                android_thread_id_t* threadId)
1203{
1204    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1205    int result;
1206
1207    LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1208
1209    args[0] = (void*) entryFunction;
1210    args[1] = userData;
1211    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1212
1213    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1214        threadName, threadPriority, threadStackSize, threadId);
1215    return result;
1216}
1217
1218/*
1219 * Create a thread that is visible from the VM.
1220 *
1221 * This is called from elsewhere in the library.
1222 */
1223/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1224    void (*start)(void *), void* arg)
1225{
1226    android_thread_id_t threadId = 0;
1227    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1228        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1229    return threadId;
1230}
1231
1232#if 0
1233static void quickTest(void* arg)
1234{
1235    const char* str = (const char*) arg;
1236
1237    printf("In quickTest: %s\n", str);
1238}
1239#endif
1240
1241#ifdef NDEBUG
1242    #define REG_JNI(name)      { name }
1243    struct RegJNIRec {
1244        int (*mProc)(JNIEnv*);
1245    };
1246#else
1247    #define REG_JNI(name)      { name, #name }
1248    struct RegJNIRec {
1249        int (*mProc)(JNIEnv*);
1250        const char* mName;
1251    };
1252#endif
1253
1254typedef void (*RegJAMProc)();
1255
1256static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1257{
1258    for (size_t i = 0; i < count; i++) {
1259        if (array[i].mProc(env) < 0) {
1260#ifndef NDEBUG
1261            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1262#endif
1263            return -1;
1264        }
1265    }
1266    return 0;
1267}
1268
1269static const RegJNIRec gRegJNI[] = {
1270    REG_JNI(register_com_android_internal_os_RuntimeInit),
1271    REG_JNI(register_android_os_SystemClock),
1272    REG_JNI(register_android_util_EventLog),
1273    REG_JNI(register_android_util_Log),
1274    REG_JNI(register_android_util_MemoryIntArray),
1275    REG_JNI(register_android_util_PathParser),
1276    REG_JNI(register_android_app_admin_SecurityLog),
1277    REG_JNI(register_android_content_AssetManager),
1278    REG_JNI(register_android_content_StringBlock),
1279    REG_JNI(register_android_content_XmlBlock),
1280    REG_JNI(register_android_text_AndroidCharacter),
1281    REG_JNI(register_android_text_StaticLayout),
1282    REG_JNI(register_android_text_AndroidBidi),
1283    REG_JNI(register_android_view_InputDevice),
1284    REG_JNI(register_android_view_KeyCharacterMap),
1285    REG_JNI(register_android_os_Process),
1286    REG_JNI(register_android_os_SystemProperties),
1287    REG_JNI(register_android_os_Binder),
1288    REG_JNI(register_android_os_Parcel),
1289    REG_JNI(register_android_os_HwBinder),
1290    REG_JNI(register_android_os_HwBlob),
1291    REG_JNI(register_android_os_HwParcel),
1292    REG_JNI(register_android_os_HwRemoteBinder),
1293    REG_JNI(register_android_nio_utils),
1294    REG_JNI(register_android_graphics_Canvas),
1295    REG_JNI(register_android_graphics_Graphics),
1296    REG_JNI(register_android_view_DisplayEventReceiver),
1297    REG_JNI(register_android_view_RenderNode),
1298    REG_JNI(register_android_view_RenderNodeAnimator),
1299    REG_JNI(register_android_view_DisplayListCanvas),
1300    REG_JNI(register_android_view_HardwareLayer),
1301    REG_JNI(register_android_view_ThreadedRenderer),
1302    REG_JNI(register_android_view_Surface),
1303    REG_JNI(register_android_view_SurfaceControl),
1304    REG_JNI(register_android_view_SurfaceSession),
1305    REG_JNI(register_android_view_TextureView),
1306    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1307    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1308    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1309    REG_JNI(register_android_opengl_jni_EGL14),
1310    REG_JNI(register_android_opengl_jni_EGLExt),
1311    REG_JNI(register_android_opengl_jni_GLES10),
1312    REG_JNI(register_android_opengl_jni_GLES10Ext),
1313    REG_JNI(register_android_opengl_jni_GLES11),
1314    REG_JNI(register_android_opengl_jni_GLES11Ext),
1315    REG_JNI(register_android_opengl_jni_GLES20),
1316    REG_JNI(register_android_opengl_jni_GLES30),
1317    REG_JNI(register_android_opengl_jni_GLES31),
1318    REG_JNI(register_android_opengl_jni_GLES31Ext),
1319    REG_JNI(register_android_opengl_jni_GLES32),
1320
1321    REG_JNI(register_android_graphics_Bitmap),
1322    REG_JNI(register_android_graphics_BitmapFactory),
1323    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1324    REG_JNI(register_android_graphics_Camera),
1325    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1326    REG_JNI(register_android_graphics_CanvasProperty),
1327    REG_JNI(register_android_graphics_ColorFilter),
1328    REG_JNI(register_android_graphics_DrawFilter),
1329    REG_JNI(register_android_graphics_FontFamily),
1330    REG_JNI(register_android_graphics_GraphicBuffer),
1331    REG_JNI(register_android_graphics_Interpolator),
1332    REG_JNI(register_android_graphics_MaskFilter),
1333    REG_JNI(register_android_graphics_Matrix),
1334    REG_JNI(register_android_graphics_Movie),
1335    REG_JNI(register_android_graphics_NinePatch),
1336    REG_JNI(register_android_graphics_Paint),
1337    REG_JNI(register_android_graphics_Path),
1338    REG_JNI(register_android_graphics_PathMeasure),
1339    REG_JNI(register_android_graphics_PathEffect),
1340    REG_JNI(register_android_graphics_Picture),
1341    REG_JNI(register_android_graphics_Region),
1342    REG_JNI(register_android_graphics_Shader),
1343    REG_JNI(register_android_graphics_SurfaceTexture),
1344    REG_JNI(register_android_graphics_Typeface),
1345    REG_JNI(register_android_graphics_YuvImage),
1346    REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
1347    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1348    REG_JNI(register_android_graphics_pdf_PdfDocument),
1349    REG_JNI(register_android_graphics_pdf_PdfEditor),
1350    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1351
1352    REG_JNI(register_android_database_CursorWindow),
1353    REG_JNI(register_android_database_SQLiteConnection),
1354    REG_JNI(register_android_database_SQLiteGlobal),
1355    REG_JNI(register_android_database_SQLiteDebug),
1356    REG_JNI(register_android_os_Debug),
1357    REG_JNI(register_android_os_FileObserver),
1358    REG_JNI(register_android_os_MessageQueue),
1359    REG_JNI(register_android_os_SELinux),
1360    REG_JNI(register_android_os_Trace),
1361    REG_JNI(register_android_os_UEventObserver),
1362    REG_JNI(register_android_net_LocalSocketImpl),
1363    REG_JNI(register_android_net_NetworkUtils),
1364    REG_JNI(register_android_net_TrafficStats),
1365    REG_JNI(register_android_os_MemoryFile),
1366    REG_JNI(register_com_android_internal_os_PathClassLoaderFactory),
1367    REG_JNI(register_com_android_internal_os_Zygote),
1368    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1369    REG_JNI(register_android_hardware_Camera),
1370    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1371    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1372    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1373    REG_JNI(register_android_hardware_camera2_DngCreator),
1374    REG_JNI(register_android_hardware_Radio),
1375    REG_JNI(register_android_hardware_SensorManager),
1376    REG_JNI(register_android_hardware_SerialPort),
1377    REG_JNI(register_android_hardware_SoundTrigger),
1378    REG_JNI(register_android_hardware_UsbDevice),
1379    REG_JNI(register_android_hardware_UsbDeviceConnection),
1380    REG_JNI(register_android_hardware_UsbRequest),
1381    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1382    REG_JNI(register_android_media_AudioRecord),
1383    REG_JNI(register_android_media_AudioSystem),
1384    REG_JNI(register_android_media_AudioTrack),
1385    REG_JNI(register_android_media_JetPlayer),
1386    REG_JNI(register_android_media_RemoteDisplay),
1387    REG_JNI(register_android_media_ToneGenerator),
1388
1389    REG_JNI(register_android_opengl_classes),
1390    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1391    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1392    REG_JNI(register_android_backup_BackupDataInput),
1393    REG_JNI(register_android_backup_BackupDataOutput),
1394    REG_JNI(register_android_backup_FileBackupHelperBase),
1395    REG_JNI(register_android_backup_BackupHelperDispatcher),
1396    REG_JNI(register_android_app_backup_FullBackup),
1397    REG_JNI(register_android_app_Activity),
1398    REG_JNI(register_android_app_ActivityThread),
1399    REG_JNI(register_android_app_ApplicationLoaders),
1400    REG_JNI(register_android_app_NativeActivity),
1401    REG_JNI(register_android_util_jar_StrictJarFile),
1402    REG_JNI(register_android_view_InputChannel),
1403    REG_JNI(register_android_view_InputEventReceiver),
1404    REG_JNI(register_android_view_InputEventSender),
1405    REG_JNI(register_android_view_InputQueue),
1406    REG_JNI(register_android_view_KeyEvent),
1407    REG_JNI(register_android_view_MotionEvent),
1408    REG_JNI(register_android_view_PointerIcon),
1409    REG_JNI(register_android_view_VelocityTracker),
1410
1411    REG_JNI(register_android_content_res_ObbScanner),
1412    REG_JNI(register_android_content_res_Configuration),
1413
1414    REG_JNI(register_android_animation_PropertyValuesHolder),
1415    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1416    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1417    REG_JNI(register_com_android_internal_os_FuseAppLoop),
1418};
1419
1420/*
1421 * Register android native functions with the VM.
1422 */
1423/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1424{
1425    ATRACE_NAME("RegisterAndroidNatives");
1426    /*
1427     * This hook causes all future threads created in this process to be
1428     * attached to the JavaVM.  (This needs to go away in favor of JNI
1429     * Attach calls.)
1430     */
1431    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1432
1433    ALOGV("--- registering native functions ---\n");
1434
1435    /*
1436     * Every "register" function calls one or more things that return
1437     * a local reference (e.g. FindClass).  Because we haven't really
1438     * started the VM yet, they're all getting stored in the base frame
1439     * and never released.  Use Push/Pop to manage the storage.
1440     */
1441    env->PushLocalFrame(200);
1442
1443    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1444        env->PopLocalFrame(NULL);
1445        return -1;
1446    }
1447    env->PopLocalFrame(NULL);
1448
1449    //createJavaThread("fubar", quickTest, (void*) "hello");
1450
1451    return 0;
1452}
1453
1454AndroidRuntime* AndroidRuntime::getRuntime()
1455{
1456    return gCurRuntime;
1457}
1458
1459/**
1460 * Used by surface flinger's DdmConnection to register native methods from
1461 * the framework.
1462 */
1463extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1464    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1465}
1466}   // namespace android
1467