AndroidRuntime.cpp revision 8d74de55464c885b602b34252ee8721a9e810dcf 
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#include <SkImageDecoder.h>
34
35#include "jni.h"
36#include "JNIHelp.h"
37#include "JniInvocation.h"
38#include "android_util_Binder.h"
39
40#include <stdio.h>
41#include <signal.h>
42#include <sys/stat.h>
43#include <sys/types.h>
44#include <signal.h>
45#include <dirent.h>
46#include <assert.h>
47
48#include <string>
49#include <vector>
50
51
52using namespace android;
53
54extern int register_android_os_Binder(JNIEnv* env);
55extern int register_android_os_Process(JNIEnv* env);
56extern int register_android_graphics_Bitmap(JNIEnv*);
57extern int register_android_graphics_BitmapFactory(JNIEnv*);
58extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
59extern int register_android_graphics_Camera(JNIEnv* env);
60extern int register_android_graphics_CreateJavaOutputStreamAdaptor(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);
98extern int register_android_hardware_location_ContextHubService(JNIEnv* env);
99
100extern int register_android_media_AudioRecord(JNIEnv *env);
101extern int register_android_media_AudioSystem(JNIEnv *env);
102extern int register_android_media_AudioTrack(JNIEnv *env);
103extern int register_android_media_JetPlayer(JNIEnv *env);
104extern int register_android_media_ToneGenerator(JNIEnv *env);
105
106namespace android {
107
108/*
109 * JNI-based registration functions.  Note these are properly contained in
110 * namespace android.
111 */
112extern int register_android_app_admin_SecurityLog(JNIEnv* env);
113extern int register_android_content_AssetManager(JNIEnv* env);
114extern int register_android_util_EventLog(JNIEnv* env);
115extern int register_android_util_Log(JNIEnv* env);
116extern int register_android_util_MemoryIntArray(JNIEnv* env);
117extern int register_android_util_PathParser(JNIEnv* env);
118extern int register_android_content_StringBlock(JNIEnv* env);
119extern int register_android_content_XmlBlock(JNIEnv* env);
120extern int register_android_graphics_Canvas(JNIEnv* env);
121extern int register_android_graphics_CanvasProperty(JNIEnv* env);
122extern int register_android_graphics_ColorFilter(JNIEnv* env);
123extern int register_android_graphics_DrawFilter(JNIEnv* env);
124extern int register_android_graphics_FontFamily(JNIEnv* env);
125extern int register_android_graphics_LayerRasterizer(JNIEnv*);
126extern int register_android_graphics_Matrix(JNIEnv* env);
127extern int register_android_graphics_Paint(JNIEnv* env);
128extern int register_android_graphics_Path(JNIEnv* env);
129extern int register_android_graphics_PathMeasure(JNIEnv* env);
130extern int register_android_graphics_Picture(JNIEnv*);
131extern int register_android_graphics_PorterDuff(JNIEnv* env);
132extern int register_android_graphics_Rasterizer(JNIEnv* env);
133extern int register_android_graphics_Region(JNIEnv* env);
134extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
135extern int register_android_graphics_Xfermode(JNIEnv* env);
136extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env);
137extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
138extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
139extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
140extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
141extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
142extern int register_android_view_DisplayListCanvas(JNIEnv* env);
143extern int register_android_view_GraphicBuffer(JNIEnv* env);
144extern int register_android_view_HardwareLayer(JNIEnv* env);
145extern int register_android_view_RenderNode(JNIEnv* env);
146extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
147extern int register_android_view_Surface(JNIEnv* env);
148extern int register_android_view_SurfaceControl(JNIEnv* env);
149extern int register_android_view_SurfaceSession(JNIEnv* env);
150extern int register_android_view_TextureView(JNIEnv* env);
151extern int register_android_view_ThreadedRenderer(JNIEnv* env);
152extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
153extern int register_android_database_CursorWindow(JNIEnv* env);
154extern int register_android_database_SQLiteConnection(JNIEnv* env);
155extern int register_android_database_SQLiteGlobal(JNIEnv* env);
156extern int register_android_database_SQLiteDebug(JNIEnv* env);
157extern int register_android_nio_utils(JNIEnv* env);
158extern int register_android_os_Debug(JNIEnv* env);
159extern int register_android_os_MessageQueue(JNIEnv* env);
160extern int register_android_os_Parcel(JNIEnv* env);
161extern int register_android_os_SELinux(JNIEnv* env);
162extern int register_android_os_SystemProperties(JNIEnv *env);
163extern int register_android_os_SystemClock(JNIEnv* env);
164extern int register_android_os_Trace(JNIEnv* env);
165extern int register_android_os_FileObserver(JNIEnv *env);
166extern int register_android_os_UEventObserver(JNIEnv* env);
167extern int register_android_os_MemoryFile(JNIEnv* env);
168extern int register_android_net_LocalSocketImpl(JNIEnv* env);
169extern int register_android_net_NetworkUtils(JNIEnv* env);
170extern int register_android_net_TrafficStats(JNIEnv* env);
171extern int register_android_text_AndroidCharacter(JNIEnv *env);
172extern int register_android_text_StaticLayout(JNIEnv *env);
173extern int register_android_text_AndroidBidi(JNIEnv *env);
174extern int register_android_opengl_classes(JNIEnv *env);
175extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
176extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
177extern int register_android_backup_BackupDataInput(JNIEnv *env);
178extern int register_android_backup_BackupDataOutput(JNIEnv *env);
179extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
180extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
181extern int register_android_app_backup_FullBackup(JNIEnv *env);
182extern int register_android_app_ApplicationLoaders(JNIEnv* env);
183extern int register_android_app_Activity(JNIEnv *env);
184extern int register_android_app_ActivityThread(JNIEnv *env);
185extern int register_android_app_NativeActivity(JNIEnv *env);
186extern int register_android_media_RemoteDisplay(JNIEnv *env);
187extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
188extern int register_android_view_InputChannel(JNIEnv* env);
189extern int register_android_view_InputDevice(JNIEnv* env);
190extern int register_android_view_InputEventReceiver(JNIEnv* env);
191extern int register_android_view_InputEventSender(JNIEnv* env);
192extern int register_android_view_InputQueue(JNIEnv* env);
193extern int register_android_view_KeyCharacterMap(JNIEnv *env);
194extern int register_android_view_KeyEvent(JNIEnv* env);
195extern int register_android_view_MotionEvent(JNIEnv* env);
196extern int register_android_view_PointerIcon(JNIEnv* env);
197extern int register_android_view_VelocityTracker(JNIEnv* env);
198extern int register_android_content_res_ObbScanner(JNIEnv* env);
199extern int register_android_content_res_Configuration(JNIEnv* env);
200extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
201extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
202extern int register_com_android_internal_net_NetworkStatsFactory(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) {
280    memset(mArgBlockStart, 0, mArgBlockLength);
281    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
282}
283
284status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
285    const Vector<String8>& args)
286{
287    JNIEnv* env;
288    jmethodID methodId;
289
290    ALOGD("Calling main entry %s", className.string());
291
292    env = getJNIEnv();
293    if (clazz == NULL || env == NULL) {
294        return UNKNOWN_ERROR;
295    }
296
297    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
298    if (methodId == NULL) {
299        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
300        return UNKNOWN_ERROR;
301    }
302
303    /*
304     * We want to call main() with a String array with our arguments in it.
305     * Create an array and populate it.
306     */
307    jclass stringClass;
308    jobjectArray strArray;
309
310    const size_t numArgs = args.size();
311    stringClass = env->FindClass("java/lang/String");
312    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
313
314    for (size_t i = 0; i < numArgs; i++) {
315        jstring argStr = env->NewStringUTF(args[i].string());
316        env->SetObjectArrayElement(strArray, i, argStr);
317    }
318
319    env->CallStaticVoidMethod(clazz, methodId, strArray);
320    return NO_ERROR;
321}
322
323/*
324 * The VM calls this through the "exit" hook.
325 */
326static void runtime_exit(int code)
327{
328    gCurRuntime->exit(code);
329}
330
331/*
332 * The VM calls this through the "vfprintf" hook.
333 *
334 * We ignore "fp" and just write the results to the log file.
335 */
336static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
337{
338    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
339}
340
341/**
342 * The VM calls this when mutex contention debugging is enabled to
343 * determine whether or not the blocked thread was a "sensitive thread"
344 * for user responsiveness/smoothess.
345 *
346 * Our policy for this is whether or not we're tracing any StrictMode
347 * events on this thread (which we might've inherited via Binder calls
348 * into us)
349 */
350static bool runtime_isSensitiveThread() {
351    IPCThreadState* state = IPCThreadState::selfOrNull();
352    return state && state->getStrictModePolicy() != 0;
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
365static bool hasFile(const char* file) {
366    struct stat s;
367    int res = stat(file, &s);
368    if (res == 0) {
369        return S_ISREG(s.st_mode);
370    }
371    return false;
372}
373
374// Convenience wrapper over the property API that returns an
375// std::string.
376std::string getProperty(const char* key, const char* defaultValue) {
377    std::vector<char> temp(PROPERTY_VALUE_MAX);
378    const int len = property_get(key, &temp[0], defaultValue);
379    if (len < 0) {
380        return "";
381    }
382    return std::string(&temp[0], len);
383}
384
385/*
386 * Read the persistent locale. Inspects the following system properties
387 * (in order) and returns the first non-empty property in the list :
388 *
389 * (1) persist.sys.locale
390 * (2) persist.sys.language/country/localevar (country and localevar are
391 * inspected iff. language is non-empty.
392 * (3) ro.product.locale
393 * (4) ro.product.locale.language/region
394 *
395 * Note that we need to inspect persist.sys.language/country/localevar to
396 * preserve language settings for devices that are upgrading from Lollipop
397 * to M. The same goes for ro.product.locale.language/region as well.
398 */
399const std::string readLocale()
400{
401    const std::string locale = getProperty("persist.sys.locale", "");
402    if (!locale.empty()) {
403        return locale;
404    }
405
406    const std::string language = getProperty("persist.sys.language", "");
407    if (!language.empty()) {
408        const std::string country = getProperty("persist.sys.country", "");
409        const std::string variant = getProperty("persist.sys.localevar", "");
410
411        std::string out = language;
412        if (!country.empty()) {
413            out = out + "-" + country;
414        }
415
416        if (!variant.empty()) {
417            out = out + "-" + variant;
418        }
419
420        return out;
421    }
422
423    const std::string productLocale = getProperty("ro.product.locale", "");
424    if (!productLocale.empty()) {
425        return productLocale;
426    }
427
428    // If persist.sys.locale and ro.product.locale are missing,
429    // construct a locale value from the individual locale components.
430    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
431    const std::string productRegion = getProperty("ro.product.locale.region", "US");
432
433    return productLanguage + "-" + productRegion;
434}
435
436void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
437{
438    JavaVMOption opt;
439    opt.optionString = optionString;
440    opt.extraInfo = extraInfo;
441    mOptions.add(opt);
442}
443
444/*
445 * Parse a property containing space-separated options that should be
446 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
447 *
448 * This will cut up "extraOptsBuf" as we chop it into individual options.
449 *
450 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
451 *
452 * Adds the strings, if any, to mOptions.
453 */
454void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
455{
456    char* start = extraOptsBuf;
457    char* end = NULL;
458    while (*start != '\0') {
459        while (*start == ' ')                   /* skip leading whitespace */
460            start++;
461        if (*start == '\0')                     /* was trailing ws, bail */
462            break;
463
464        end = start+1;
465        while (*end != ' ' && *end != '\0')     /* find end of token */
466            end++;
467        if (*end == ' ')
468            *end++ = '\0';          /* mark end, advance to indicate more */
469
470        if (quotingArg != NULL) {
471            addOption(quotingArg);
472        }
473        addOption(start);
474        start = end;
475    }
476}
477
478/*
479 * Reads a "property" into "buffer" with a default of "defaultArg". If
480 * the property is non-empty, it is treated as a runtime option such
481 * as "-Xmx32m".
482 *
483 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
484 *
485 * If an argument is found, it is added to mOptions.
486 *
487 * If an option is found, it is added to mOptions and true is
488 * returned. Otherwise false is returned.
489 */
490bool AndroidRuntime::parseRuntimeOption(const char* property,
491                                        char* buffer,
492                                        const char* runtimeArg,
493                                        const char* defaultArg)
494{
495    strcpy(buffer, runtimeArg);
496    size_t runtimeArgLen = strlen(runtimeArg);
497    property_get(property, buffer+runtimeArgLen, defaultArg);
498    if (buffer[runtimeArgLen] == '\0') {
499        return false;
500    }
501    addOption(buffer);
502    return true;
503}
504
505/*
506 * Reads a "property" into "buffer". If the property is non-empty, it
507 * is treated as a dex2oat compiler option that should be
508 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
509 *
510 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
511 *
512 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
513 *
514 * If an option is found, it is added to mOptions and true is
515 * returned. Otherwise false is returned.
516 */
517bool AndroidRuntime::parseCompilerOption(const char* property,
518                                         char* buffer,
519                                         const char* compilerArg,
520                                         const char* quotingArg)
521{
522    strcpy(buffer, compilerArg);
523    size_t compilerArgLen = strlen(compilerArg);
524    property_get(property, buffer+compilerArgLen, "");
525    if (buffer[compilerArgLen] == '\0') {
526        return false;
527    }
528    addOption(quotingArg);
529    addOption(buffer);
530    return true;
531}
532
533/*
534 * Reads a "property" into "buffer". If the property is non-empty, it
535 * is treated as a dex2oat compiler runtime option that should be
536 * passed as a quoted option, e.g. "-Ximage-compiler-option
537 * --runtime-arg -Ximage-compiler-option -Xmx32m".
538 *
539 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
540 *
541 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
542 *
543 * If an option is found, it is added to mOptions and true is
544 * returned. Otherwise false is returned.
545 */
546bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
547                                                char* buffer,
548                                                const char* runtimeArg,
549                                                const char* quotingArg)
550{
551    strcpy(buffer, runtimeArg);
552    size_t runtimeArgLen = strlen(runtimeArg);
553    property_get(property, buffer+runtimeArgLen, "");
554    if (buffer[runtimeArgLen] == '\0') {
555        return false;
556    }
557    addOption(quotingArg);
558    addOption("--runtime-arg");
559    addOption(quotingArg);
560    addOption(buffer);
561    return true;
562}
563
564/*
565 * Start the Dalvik Virtual Machine.
566 *
567 * Various arguments, most determined by system properties, are passed in.
568 * The "mOptions" vector is updated.
569 *
570 * CAUTION: when adding options in here, be careful not to put the
571 * char buffer inside a nested scope.  Adding the buffer to the
572 * options using mOptions.add() does not copy the buffer, so if the
573 * buffer goes out of scope the option may be overwritten.  It's best
574 * to put the buffer at the top of the function so that it is more
575 * unlikely that someone will surround it in a scope at a later time
576 * and thus introduce a bug.
577 *
578 * Returns 0 on success.
579 */
580int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
581{
582    JavaVMInitArgs initArgs;
583    char propBuf[PROPERTY_VALUE_MAX];
584    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
585    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
586    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
587    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
588    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
589    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
590    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
591    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
592    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
593    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
594    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
595    char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
596    char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
597    char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
598    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
599    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
600    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
601    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
602    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
603    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
604    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
605    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
606    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
607    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
608    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
609    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
610    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
611    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
612    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
613    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
614    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
615    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
616    char extraOptsBuf[PROPERTY_VALUE_MAX];
617    char voldDecryptBuf[PROPERTY_VALUE_MAX];
618    enum {
619      kEMDefault,
620      kEMIntPortable,
621      kEMIntFast,
622      kEMJitCompiler,
623    } executionMode = kEMDefault;
624    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
625    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
626    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
627    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
628    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
629    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
630    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
631
632    bool checkJni = false;
633    property_get("dalvik.vm.checkjni", propBuf, "");
634    if (strcmp(propBuf, "true") == 0) {
635        checkJni = true;
636    } else if (strcmp(propBuf, "false") != 0) {
637        /* property is neither true nor false; fall back on kernel parameter */
638        property_get("ro.kernel.android.checkjni", propBuf, "");
639        if (propBuf[0] == '1') {
640            checkJni = true;
641        }
642    }
643    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
644    if (checkJni) {
645        /* extended JNI checking */
646        addOption("-Xcheck:jni");
647
648        /* with -Xcheck:jni, this provides a JNI function call trace */
649        //addOption("-verbose:jni");
650    }
651
652    property_get("dalvik.vm.execution-mode", propBuf, "");
653    if (strcmp(propBuf, "int:portable") == 0) {
654        executionMode = kEMIntPortable;
655    } else if (strcmp(propBuf, "int:fast") == 0) {
656        executionMode = kEMIntFast;
657    } else if (strcmp(propBuf, "int:jit") == 0) {
658        executionMode = kEMJitCompiler;
659    }
660
661    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
662
663    strcpy(jniOptsBuf, "-Xjniopts:");
664    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
665        ALOGI("JNI options: '%s'\n", jniOptsBuf);
666    }
667
668    /* route exit() to our handler */
669    addOption("exit", (void*) runtime_exit);
670
671    /* route fprintf() to our handler */
672    addOption("vfprintf", (void*) runtime_vfprintf);
673
674    /* register the framework-specific "is sensitive thread" hook */
675    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
676
677    /* enable verbose; standard options are { jni, gc, class } */
678    //addOption("-verbose:jni");
679    addOption("-verbose:gc");
680    //addOption("-verbose:class");
681
682    /*
683     * The default starting and maximum size of the heap.  Larger
684     * values should be specified in a product property override.
685     */
686    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
687    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
688
689    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
690    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
691    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
692    parseRuntimeOption("dalvik.vm.heaptargetutilization",
693                       heaptargetutilizationOptsBuf,
694                       "-XX:HeapTargetUtilization=");
695
696    /*
697     * JIT related options.
698     */
699    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
700    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
701    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
702    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
703    property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
704    if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
705        addOption("-Xjitsaveprofilinginfo");
706    }
707
708    parseRuntimeOption("dalvik.vm.jitprithreadweight",
709                       jitprithreadweightOptBuf,
710                       "-Xjitprithreadweight:");
711
712    parseRuntimeOption("dalvik.vm.jittransitionweight",
713                       jittransitionweightOptBuf,
714                       "-Xjittransitionweight:");
715
716    property_get("ro.config.low_ram", propBuf, "");
717    if (strcmp(propBuf, "true") == 0) {
718      addOption("-XX:LowMemoryMode");
719    }
720
721    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
722    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
723
724    /*
725     * Enable debugging only for apps forked from zygote.
726     * Set suspend=y to pause during VM init and use android ADB transport.
727     */
728    if (zygote) {
729      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
730    }
731
732    parseRuntimeOption("dalvik.vm.lockprof.threshold",
733                       lockProfThresholdBuf,
734                       "-Xlockprofthreshold:");
735
736    if (executionMode == kEMIntPortable) {
737        addOption("-Xint:portable");
738    } else if (executionMode == kEMIntFast) {
739        addOption("-Xint:fast");
740    } else if (executionMode == kEMJitCompiler) {
741        addOption("-Xint:jit");
742    }
743
744    // If we are booting without the real /data, don't spend time compiling.
745    property_get("vold.decrypt", voldDecryptBuf, "");
746    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
747                             (strcmp(voldDecryptBuf, "1") == 0));
748
749    // Extra options for boot.art/boot.oat image generation.
750    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
751                               "-Xms", "-Ximage-compiler-option");
752    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
753                               "-Xmx", "-Ximage-compiler-option");
754    if (skip_compilation) {
755        addOption("-Ximage-compiler-option");
756        addOption("--compiler-filter=verify-none");
757    } else {
758        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
759                            "--compiler-filter=", "-Ximage-compiler-option");
760    }
761
762    // Make sure there is a preloaded-classes file.
763    if (!hasFile("/system/etc/preloaded-classes")) {
764        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
765              strerror(errno));
766        return -1;
767    }
768    addOption("-Ximage-compiler-option");
769    addOption("--image-classes=/system/etc/preloaded-classes");
770
771    // If there is a compiled-classes file, push it.
772    if (hasFile("/system/etc/compiled-classes")) {
773        addOption("-Ximage-compiler-option");
774        addOption("--compiled-classes=/system/etc/compiled-classes");
775    }
776
777    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
778    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
779
780    // Extra options for DexClassLoader.
781    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
782                               "-Xms", "-Xcompiler-option");
783    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
784                               "-Xmx", "-Xcompiler-option");
785    if (skip_compilation) {
786        addOption("-Xcompiler-option");
787        addOption("--compiler-filter=verify-none");
788
789        // We skip compilation when a minimal runtime is brought up for decryption. In that case
790        // /data is temporarily backed by a tmpfs, which is usually small.
791        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
792        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
793        // directly instead.
794        addOption("--runtime-arg");
795        addOption("-Xnorelocate");
796    } else {
797        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
798                            "--compiler-filter=", "-Xcompiler-option");
799    }
800    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
801    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
802                        "-Ximage-compiler-option");
803
804    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
805    // pass the instruction-set-features/variant as an image-compiler-option.
806    // TODO: Find a better way for the instruction-set.
807#if defined(__arm__)
808    constexpr const char* instruction_set = "arm";
809#elif defined(__aarch64__)
810    constexpr const char* instruction_set = "arm64";
811#elif defined(__mips__) && !defined(__LP64__)
812    constexpr const char* instruction_set = "mips";
813#elif defined(__mips__) && defined(__LP64__)
814    constexpr const char* instruction_set = "mips64";
815#elif defined(__i386__)
816    constexpr const char* instruction_set = "x86";
817#elif defined(__x86_64__)
818    constexpr const char* instruction_set = "x86_64";
819#else
820    constexpr const char* instruction_set = "unknown";
821#endif
822    // Note: it is OK to reuse the buffer, as the values are exactly the same between
823    //       * compiler-option, used for runtime compilation (DexClassLoader)
824    //       * image-compiler-option, used for boot-image compilation on device
825
826    // Copy the variant.
827    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
828    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
829                        "--instruction-set-variant=", "-Ximage-compiler-option");
830    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
831                        "--instruction-set-variant=", "-Xcompiler-option");
832    // Copy the features.
833    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
834    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
835                        "--instruction-set-features=", "-Ximage-compiler-option");
836    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
837                        "--instruction-set-features=", "-Xcompiler-option");
838
839
840    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
841    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
842
843    /* extra options; parse this late so it overrides others */
844    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
845    parseExtraOpts(extraOptsBuf, NULL);
846
847    /* Set the properties for locale */
848    {
849        strcpy(localeOption, "-Duser.locale=");
850        const std::string locale = readLocale();
851        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
852        addOption(localeOption);
853    }
854
855    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
856    property_get("ro.debuggable", propBuf, "0");
857    if (strcmp(propBuf, "1") == 0) {
858        property_get("dalvik.vm.method-trace", propBuf, "false");
859        if (strcmp(propBuf, "true") == 0) {
860            addOption("-Xmethod-trace");
861            parseRuntimeOption("dalvik.vm.method-trace-file",
862                               methodTraceFileBuf,
863                               "-Xmethod-trace-file:");
864            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
865                               methodTraceFileSizeBuf,
866                               "-Xmethod-trace-file-size:");
867            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
868            if (strcmp(propBuf, "true") == 0) {
869                addOption("-Xmethod-trace-stream");
870            }
871        }
872    }
873
874    // Native bridge library. "0" means that native bridge is disabled.
875    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
876    if (propBuf[0] == '\0') {
877        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
878    } else if (strcmp(propBuf, "0") != 0) {
879        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
880                 "-XX:NativeBridge=%s", propBuf);
881        addOption(nativeBridgeLibrary);
882    }
883
884#if defined(__LP64__)
885    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
886#else
887    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
888#endif  // defined(__LP64__)
889    property_get(cpu_abilist_property_name, propBuf, "");
890    if (propBuf[0] == '\0') {
891        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
892        return -1;
893    }
894    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
895    addOption(cpuAbiListBuf);
896
897    // Dalvik-cache pruning counter.
898    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
899                       "-Xzygote-max-boot-retry=");
900
901    /*
902     * When running with debug.generate-debug-info, add --generate-debug-info to
903     * the compiler options so that the boot image, if it is compiled on device,
904     * will include native debugging information.
905     */
906    property_get("debug.generate-debug-info", propBuf, "");
907    if (strcmp(propBuf, "true") == 0) {
908        addOption("-Xcompiler-option");
909        addOption("--generate-debug-info");
910        addOption("-Ximage-compiler-option");
911        addOption("--generate-debug-info");
912    }
913
914    /*
915     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
916     * contain the fingerprint and can be parsed.
917     */
918    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
919
920    initArgs.version = JNI_VERSION_1_4;
921    initArgs.options = mOptions.editArray();
922    initArgs.nOptions = mOptions.size();
923    initArgs.ignoreUnrecognized = JNI_FALSE;
924
925    /*
926     * Initialize the VM.
927     *
928     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
929     * If this call succeeds, the VM is ready, and we can start issuing
930     * JNI calls.
931     */
932    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
933        ALOGE("JNI_CreateJavaVM failed\n");
934        return -1;
935    }
936
937    return 0;
938}
939
940char* AndroidRuntime::toSlashClassName(const char* className)
941{
942    char* result = strdup(className);
943    for (char* cp = result; *cp != '\0'; cp++) {
944        if (*cp == '.') {
945            *cp = '/';
946        }
947    }
948    return result;
949}
950
951/** Create a Java string from an ASCII or Latin-1 string */
952jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
953    if (!bytes) return NULL;
954    int length = strlen(bytes);
955    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
956    if (!buffer) return NULL;
957    jchar* chp = buffer;
958    for (int i = 0; i < length; i++) {
959        *chp++ = *bytes++;
960    }
961    return env->NewString(buffer, length);
962}
963
964
965/*
966 * Start the Android runtime.  This involves starting the virtual machine
967 * and calling the "static void main(String[] args)" method in the class
968 * named by "className".
969 *
970 * Passes the main function two arguments, the class name and the specified
971 * options string.
972 */
973void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
974{
975    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
976            className != NULL ? className : "(unknown)", getuid());
977
978    static const String8 startSystemServer("start-system-server");
979
980    /*
981     * 'startSystemServer == true' means runtime is obsolete and not run from
982     * init.rc anymore, so we print out the boot start event here.
983     */
984    for (size_t i = 0; i < options.size(); ++i) {
985        if (options[i] == startSystemServer) {
986           /* track our progress through the boot sequence */
987           const int LOG_BOOT_PROGRESS_START = 3000;
988           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
989        }
990    }
991
992    const char* rootDir = getenv("ANDROID_ROOT");
993    if (rootDir == NULL) {
994        rootDir = "/system";
995        if (!hasDir("/system")) {
996            LOG_FATAL("No root directory specified, and /android does not exist.");
997            return;
998        }
999        setenv("ANDROID_ROOT", rootDir, 1);
1000    }
1001
1002    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1003    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1004
1005    /* start the virtual machine */
1006    JniInvocation jni_invocation;
1007    jni_invocation.Init(NULL);
1008    JNIEnv* env;
1009    if (startVm(&mJavaVM, &env, zygote) != 0) {
1010        return;
1011    }
1012    onVmCreated(env);
1013
1014    /*
1015     * Register android functions.
1016     */
1017    if (startReg(env) < 0) {
1018        ALOGE("Unable to register all android natives\n");
1019        return;
1020    }
1021
1022    /*
1023     * We want to call main() with a String array with arguments in it.
1024     * At present we have two arguments, the class name and an option string.
1025     * Create an array to hold them.
1026     */
1027    jclass stringClass;
1028    jobjectArray strArray;
1029    jstring classNameStr;
1030
1031    stringClass = env->FindClass("java/lang/String");
1032    assert(stringClass != NULL);
1033    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1034    assert(strArray != NULL);
1035    classNameStr = env->NewStringUTF(className);
1036    assert(classNameStr != NULL);
1037    env->SetObjectArrayElement(strArray, 0, classNameStr);
1038
1039    for (size_t i = 0; i < options.size(); ++i) {
1040        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1041        assert(optionsStr != NULL);
1042        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1043    }
1044
1045    /*
1046     * Start VM.  This thread becomes the main thread of the VM, and will
1047     * not return until the VM exits.
1048     */
1049    char* slashClassName = toSlashClassName(className);
1050    jclass startClass = env->FindClass(slashClassName);
1051    if (startClass == NULL) {
1052        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1053        /* keep going */
1054    } else {
1055        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1056            "([Ljava/lang/String;)V");
1057        if (startMeth == NULL) {
1058            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1059            /* keep going */
1060        } else {
1061            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1062
1063#if 0
1064            if (env->ExceptionCheck())
1065                threadExitUncaughtException(env);
1066#endif
1067        }
1068    }
1069    free(slashClassName);
1070
1071    ALOGD("Shutting down VM\n");
1072    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1073        ALOGW("Warning: unable to detach main thread\n");
1074    if (mJavaVM->DestroyJavaVM() != 0)
1075        ALOGW("Warning: VM did not shut down cleanly\n");
1076}
1077
1078void AndroidRuntime::exit(int code)
1079{
1080    if (mExitWithoutCleanup) {
1081        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1082        ::_exit(code);
1083    } else {
1084        ALOGI("VM exiting with result code %d.", code);
1085        onExit(code);
1086        ::exit(code);
1087    }
1088}
1089
1090void AndroidRuntime::onVmCreated(JNIEnv* env)
1091{
1092    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1093}
1094
1095/*
1096 * Get the JNIEnv pointer for this thread.
1097 *
1098 * Returns NULL if the slot wasn't allocated or populated.
1099 */
1100/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1101{
1102    JNIEnv* env;
1103    JavaVM* vm = AndroidRuntime::getJavaVM();
1104    assert(vm != NULL);
1105
1106    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1107        return NULL;
1108    return env;
1109}
1110
1111/*
1112 * Makes the current thread visible to the VM.
1113 *
1114 * The JNIEnv pointer returned is only valid for the current thread, and
1115 * thus must be tucked into thread-local storage.
1116 */
1117static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1118{
1119    JavaVMAttachArgs args;
1120    JavaVM* vm;
1121    jint result;
1122
1123    vm = AndroidRuntime::getJavaVM();
1124    assert(vm != NULL);
1125
1126    args.version = JNI_VERSION_1_4;
1127    args.name = (char*) threadName;
1128    args.group = NULL;
1129
1130    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1131    if (result != JNI_OK)
1132        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1133
1134    return result;
1135}
1136
1137/*
1138 * Detach the current thread from the set visible to the VM.
1139 */
1140static int javaDetachThread(void)
1141{
1142    JavaVM* vm;
1143    jint result;
1144
1145    vm = AndroidRuntime::getJavaVM();
1146    assert(vm != NULL);
1147
1148    result = vm->DetachCurrentThread();
1149    if (result != JNI_OK)
1150        ALOGE("ERROR: thread detach failed\n");
1151    return result;
1152}
1153
1154/*
1155 * When starting a native thread that will be visible from the VM, we
1156 * bounce through this to get the right attach/detach action.
1157 * Note that this function calls free(args)
1158 */
1159/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1160    void* start = ((void**)args)[0];
1161    void* userData = ((void **)args)[1];
1162    char* name = (char*) ((void **)args)[2];        // we own this storage
1163    free(args);
1164    JNIEnv* env;
1165    int result;
1166
1167    /* hook us into the VM */
1168    if (javaAttachThread(name, &env) != JNI_OK)
1169        return -1;
1170
1171    /* start the thread running */
1172    result = (*(android_thread_func_t)start)(userData);
1173
1174    /* unhook us */
1175    javaDetachThread();
1176    free(name);
1177
1178    return result;
1179}
1180
1181/*
1182 * This is invoked from androidCreateThreadEtc() via the callback
1183 * set with androidSetCreateThreadFunc().
1184 *
1185 * We need to create the new thread in such a way that it gets hooked
1186 * into the VM before it really starts executing.
1187 */
1188/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1189                                android_thread_func_t entryFunction,
1190                                void* userData,
1191                                const char* threadName,
1192                                int32_t threadPriority,
1193                                size_t threadStackSize,
1194                                android_thread_id_t* threadId)
1195{
1196    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1197    int result;
1198
1199    LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1200
1201    args[0] = (void*) entryFunction;
1202    args[1] = userData;
1203    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1204
1205    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1206        threadName, threadPriority, threadStackSize, threadId);
1207    return result;
1208}
1209
1210/*
1211 * Create a thread that is visible from the VM.
1212 *
1213 * This is called from elsewhere in the library.
1214 */
1215/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1216    void (*start)(void *), void* arg)
1217{
1218    android_thread_id_t threadId = 0;
1219    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1220        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1221    return threadId;
1222}
1223
1224#if 0
1225static void quickTest(void* arg)
1226{
1227    const char* str = (const char*) arg;
1228
1229    printf("In quickTest: %s\n", str);
1230}
1231#endif
1232
1233#ifdef NDEBUG
1234    #define REG_JNI(name)      { name }
1235    struct RegJNIRec {
1236        int (*mProc)(JNIEnv*);
1237    };
1238#else
1239    #define REG_JNI(name)      { name, #name }
1240    struct RegJNIRec {
1241        int (*mProc)(JNIEnv*);
1242        const char* mName;
1243    };
1244#endif
1245
1246typedef void (*RegJAMProc)();
1247
1248static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1249{
1250    for (size_t i = 0; i < count; i++) {
1251        if (array[i].mProc(env) < 0) {
1252#ifndef NDEBUG
1253            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1254#endif
1255            return -1;
1256        }
1257    }
1258    return 0;
1259}
1260
1261static const RegJNIRec gRegJNI[] = {
1262    REG_JNI(register_com_android_internal_os_RuntimeInit),
1263    REG_JNI(register_android_os_SystemClock),
1264    REG_JNI(register_android_util_EventLog),
1265    REG_JNI(register_android_util_Log),
1266    REG_JNI(register_android_util_MemoryIntArray),
1267    REG_JNI(register_android_util_PathParser),
1268    REG_JNI(register_android_app_admin_SecurityLog),
1269    REG_JNI(register_android_content_AssetManager),
1270    REG_JNI(register_android_content_StringBlock),
1271    REG_JNI(register_android_content_XmlBlock),
1272    REG_JNI(register_android_text_AndroidCharacter),
1273    REG_JNI(register_android_text_StaticLayout),
1274    REG_JNI(register_android_text_AndroidBidi),
1275    REG_JNI(register_android_view_InputDevice),
1276    REG_JNI(register_android_view_KeyCharacterMap),
1277    REG_JNI(register_android_os_Process),
1278    REG_JNI(register_android_os_SystemProperties),
1279    REG_JNI(register_android_os_Binder),
1280    REG_JNI(register_android_os_Parcel),
1281    REG_JNI(register_android_nio_utils),
1282    REG_JNI(register_android_graphics_Canvas),
1283    REG_JNI(register_android_graphics_Graphics),
1284    REG_JNI(register_android_view_DisplayEventReceiver),
1285    REG_JNI(register_android_view_RenderNode),
1286    REG_JNI(register_android_view_RenderNodeAnimator),
1287    REG_JNI(register_android_view_GraphicBuffer),
1288    REG_JNI(register_android_view_DisplayListCanvas),
1289    REG_JNI(register_android_view_HardwareLayer),
1290    REG_JNI(register_android_view_ThreadedRenderer),
1291    REG_JNI(register_android_view_Surface),
1292    REG_JNI(register_android_view_SurfaceControl),
1293    REG_JNI(register_android_view_SurfaceSession),
1294    REG_JNI(register_android_view_TextureView),
1295    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1296    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1297    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1298    REG_JNI(register_android_opengl_jni_EGL14),
1299    REG_JNI(register_android_opengl_jni_EGLExt),
1300    REG_JNI(register_android_opengl_jni_GLES10),
1301    REG_JNI(register_android_opengl_jni_GLES10Ext),
1302    REG_JNI(register_android_opengl_jni_GLES11),
1303    REG_JNI(register_android_opengl_jni_GLES11Ext),
1304    REG_JNI(register_android_opengl_jni_GLES20),
1305    REG_JNI(register_android_opengl_jni_GLES30),
1306    REG_JNI(register_android_opengl_jni_GLES31),
1307    REG_JNI(register_android_opengl_jni_GLES31Ext),
1308    REG_JNI(register_android_opengl_jni_GLES32),
1309
1310    REG_JNI(register_android_graphics_Bitmap),
1311    REG_JNI(register_android_graphics_BitmapFactory),
1312    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1313    REG_JNI(register_android_graphics_Camera),
1314    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1315    REG_JNI(register_android_graphics_CanvasProperty),
1316    REG_JNI(register_android_graphics_ColorFilter),
1317    REG_JNI(register_android_graphics_DrawFilter),
1318    REG_JNI(register_android_graphics_FontFamily),
1319    REG_JNI(register_android_graphics_Interpolator),
1320    REG_JNI(register_android_graphics_LayerRasterizer),
1321    REG_JNI(register_android_graphics_MaskFilter),
1322    REG_JNI(register_android_graphics_Matrix),
1323    REG_JNI(register_android_graphics_Movie),
1324    REG_JNI(register_android_graphics_NinePatch),
1325    REG_JNI(register_android_graphics_Paint),
1326    REG_JNI(register_android_graphics_Path),
1327    REG_JNI(register_android_graphics_PathMeasure),
1328    REG_JNI(register_android_graphics_PathEffect),
1329    REG_JNI(register_android_graphics_Picture),
1330    REG_JNI(register_android_graphics_PorterDuff),
1331    REG_JNI(register_android_graphics_Rasterizer),
1332    REG_JNI(register_android_graphics_Region),
1333    REG_JNI(register_android_graphics_Shader),
1334    REG_JNI(register_android_graphics_SurfaceTexture),
1335    REG_JNI(register_android_graphics_Typeface),
1336    REG_JNI(register_android_graphics_Xfermode),
1337    REG_JNI(register_android_graphics_YuvImage),
1338    REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
1339    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1340    REG_JNI(register_android_graphics_pdf_PdfDocument),
1341    REG_JNI(register_android_graphics_pdf_PdfEditor),
1342    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1343
1344    REG_JNI(register_android_database_CursorWindow),
1345    REG_JNI(register_android_database_SQLiteConnection),
1346    REG_JNI(register_android_database_SQLiteGlobal),
1347    REG_JNI(register_android_database_SQLiteDebug),
1348    REG_JNI(register_android_os_Debug),
1349    REG_JNI(register_android_os_FileObserver),
1350    REG_JNI(register_android_os_MessageQueue),
1351    REG_JNI(register_android_os_SELinux),
1352    REG_JNI(register_android_os_Trace),
1353    REG_JNI(register_android_os_UEventObserver),
1354    REG_JNI(register_android_net_LocalSocketImpl),
1355    REG_JNI(register_android_net_NetworkUtils),
1356    REG_JNI(register_android_net_TrafficStats),
1357    REG_JNI(register_android_os_MemoryFile),
1358    REG_JNI(register_com_android_internal_os_Zygote),
1359    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1360    REG_JNI(register_android_hardware_Camera),
1361    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1362    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1363    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1364    REG_JNI(register_android_hardware_camera2_DngCreator),
1365    REG_JNI(register_android_hardware_Radio),
1366    REG_JNI(register_android_hardware_SensorManager),
1367    REG_JNI(register_android_hardware_SerialPort),
1368    REG_JNI(register_android_hardware_SoundTrigger),
1369    REG_JNI(register_android_hardware_UsbDevice),
1370    REG_JNI(register_android_hardware_UsbDeviceConnection),
1371    REG_JNI(register_android_hardware_UsbRequest),
1372    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1373    REG_JNI(register_android_hardware_location_ContextHubService),
1374    REG_JNI(register_android_media_AudioRecord),
1375    REG_JNI(register_android_media_AudioSystem),
1376    REG_JNI(register_android_media_AudioTrack),
1377    REG_JNI(register_android_media_JetPlayer),
1378    REG_JNI(register_android_media_RemoteDisplay),
1379    REG_JNI(register_android_media_ToneGenerator),
1380
1381    REG_JNI(register_android_opengl_classes),
1382    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1383    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1384    REG_JNI(register_android_backup_BackupDataInput),
1385    REG_JNI(register_android_backup_BackupDataOutput),
1386    REG_JNI(register_android_backup_FileBackupHelperBase),
1387    REG_JNI(register_android_backup_BackupHelperDispatcher),
1388    REG_JNI(register_android_app_backup_FullBackup),
1389    REG_JNI(register_android_app_ApplicationLoaders),
1390    REG_JNI(register_android_app_Activity),
1391    REG_JNI(register_android_app_ActivityThread),
1392    REG_JNI(register_android_app_NativeActivity),
1393    REG_JNI(register_android_util_jar_StrictJarFile),
1394    REG_JNI(register_android_view_InputChannel),
1395    REG_JNI(register_android_view_InputEventReceiver),
1396    REG_JNI(register_android_view_InputEventSender),
1397    REG_JNI(register_android_view_InputQueue),
1398    REG_JNI(register_android_view_KeyEvent),
1399    REG_JNI(register_android_view_MotionEvent),
1400    REG_JNI(register_android_view_PointerIcon),
1401    REG_JNI(register_android_view_VelocityTracker),
1402
1403    REG_JNI(register_android_content_res_ObbScanner),
1404    REG_JNI(register_android_content_res_Configuration),
1405
1406    REG_JNI(register_android_animation_PropertyValuesHolder),
1407    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1408    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1409
1410};
1411
1412/*
1413 * Register android native functions with the VM.
1414 */
1415/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1416{
1417    ATRACE_NAME("RegisterAndroidNatives");
1418    /*
1419     * This hook causes all future threads created in this process to be
1420     * attached to the JavaVM.  (This needs to go away in favor of JNI
1421     * Attach calls.)
1422     */
1423    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1424
1425    ALOGV("--- registering native functions ---\n");
1426
1427    /*
1428     * Every "register" function calls one or more things that return
1429     * a local reference (e.g. FindClass).  Because we haven't really
1430     * started the VM yet, they're all getting stored in the base frame
1431     * and never released.  Use Push/Pop to manage the storage.
1432     */
1433    env->PushLocalFrame(200);
1434
1435    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1436        env->PopLocalFrame(NULL);
1437        return -1;
1438    }
1439    env->PopLocalFrame(NULL);
1440
1441    //createJavaThread("fubar", quickTest, (void*) "hello");
1442
1443    return 0;
1444}
1445
1446AndroidRuntime* AndroidRuntime::getRuntime()
1447{
1448    return gCurRuntime;
1449}
1450
1451/**
1452 * Used by surface flinger's DdmConnection to register native methods from
1453 * the framework.
1454 */
1455extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1456    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1457}
1458}   // namespace android
1459