AndroidRuntime.cpp revision d5a72fae4ac66ab99d973af6cdd459dcde382573 
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_Activity(JNIEnv *env);
183extern int register_android_app_ActivityThread(JNIEnv *env);
184extern int register_android_app_ApplicationLoaders(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_PathClassLoaderFactory(JNIEnv* env);
204extern int register_com_android_internal_os_Zygote(JNIEnv *env);
205extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
206
207static AndroidRuntime* gCurRuntime = NULL;
208
209/*
210 * Code written in the Java Programming Language calls here from main().
211 */
212static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
213{
214    gCurRuntime->onStarted();
215}
216
217static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
218{
219    gCurRuntime->onZygoteInit();
220}
221
222static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
223        jobject clazz, jboolean exitWithoutCleanup)
224{
225    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
226}
227
228/*
229 * JNI registration.
230 */
231static const JNINativeMethod gMethods[] = {
232    { "nativeFinishInit", "()V",
233        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
234    { "nativeZygoteInit", "()V",
235        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
236    { "nativeSetExitWithoutCleanup", "(Z)V",
237        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
238};
239
240int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
241{
242    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
243        gMethods, NELEM(gMethods));
244}
245
246// ----------------------------------------------------------------------
247
248/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
249
250AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
251        mExitWithoutCleanup(false),
252        mArgBlockStart(argBlockStart),
253        mArgBlockLength(argBlockLength)
254{
255    SkGraphics::Init();
256    // There is also a global font cache, but its budget is specified by
257    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
258
259    // Pre-allocate enough space to hold a fair number of options.
260    mOptions.setCapacity(20);
261
262    assert(gCurRuntime == NULL);        // one per process
263    gCurRuntime = this;
264}
265
266AndroidRuntime::~AndroidRuntime()
267{
268    SkGraphics::Term();
269}
270
271/*
272 * Register native methods using JNI.
273 */
274/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
275    const char* className, const JNINativeMethod* gMethods, int numMethods)
276{
277    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
278}
279
280void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
281    if (setProcName) {
282        int len = strlen(argv0);
283        if (len < 15) {
284            pthread_setname_np(pthread_self(), argv0);
285        } else {
286            pthread_setname_np(pthread_self(), argv0 + len - 15);
287        }
288    }
289    memset(mArgBlockStart, 0, mArgBlockLength);
290    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
291}
292
293status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
294    const Vector<String8>& args)
295{
296    JNIEnv* env;
297    jmethodID methodId;
298
299    ALOGD("Calling main entry %s", className.string());
300
301    env = getJNIEnv();
302    if (clazz == NULL || env == NULL) {
303        return UNKNOWN_ERROR;
304    }
305
306    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
307    if (methodId == NULL) {
308        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
309        return UNKNOWN_ERROR;
310    }
311
312    /*
313     * We want to call main() with a String array with our arguments in it.
314     * Create an array and populate it.
315     */
316    jclass stringClass;
317    jobjectArray strArray;
318
319    const size_t numArgs = args.size();
320    stringClass = env->FindClass("java/lang/String");
321    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
322
323    for (size_t i = 0; i < numArgs; i++) {
324        jstring argStr = env->NewStringUTF(args[i].string());
325        env->SetObjectArrayElement(strArray, i, argStr);
326    }
327
328    env->CallStaticVoidMethod(clazz, methodId, strArray);
329    return NO_ERROR;
330}
331
332/*
333 * The VM calls this through the "exit" hook.
334 */
335static void runtime_exit(int code)
336{
337    gCurRuntime->exit(code);
338}
339
340/*
341 * The VM calls this through the "vfprintf" hook.
342 *
343 * We ignore "fp" and just write the results to the log file.
344 */
345static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
346{
347    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
348}
349
350/**
351 * The VM calls this when mutex contention debugging is enabled to
352 * determine whether or not the blocked thread was a "sensitive thread"
353 * for user responsiveness/smoothess.
354 *
355 * Our policy for this is whether or not we're tracing any StrictMode
356 * events on this thread (which we might've inherited via Binder calls
357 * into us)
358 */
359static bool runtime_isSensitiveThread() {
360    IPCThreadState* state = IPCThreadState::selfOrNull();
361    return state && state->getStrictModePolicy() != 0;
362}
363
364static int hasDir(const char* dir)
365{
366    struct stat s;
367    int res = stat(dir, &s);
368    if (res == 0) {
369        return S_ISDIR(s.st_mode);
370    }
371    return 0;
372}
373
374static bool hasFile(const char* file) {
375    struct stat s;
376    int res = stat(file, &s);
377    if (res == 0) {
378        return S_ISREG(s.st_mode);
379    }
380    return false;
381}
382
383// Convenience wrapper over the property API that returns an
384// std::string.
385std::string getProperty(const char* key, const char* defaultValue) {
386    std::vector<char> temp(PROPERTY_VALUE_MAX);
387    const int len = property_get(key, &temp[0], defaultValue);
388    if (len < 0) {
389        return "";
390    }
391    return std::string(&temp[0], len);
392}
393
394/*
395 * Read the persistent locale. Inspects the following system properties
396 * (in order) and returns the first non-empty property in the list :
397 *
398 * (1) persist.sys.locale
399 * (2) persist.sys.language/country/localevar (country and localevar are
400 * inspected iff. language is non-empty.
401 * (3) ro.product.locale
402 * (4) ro.product.locale.language/region
403 *
404 * Note that we need to inspect persist.sys.language/country/localevar to
405 * preserve language settings for devices that are upgrading from Lollipop
406 * to M. The same goes for ro.product.locale.language/region as well.
407 */
408const std::string readLocale()
409{
410    const std::string locale = getProperty("persist.sys.locale", "");
411    if (!locale.empty()) {
412        return locale;
413    }
414
415    const std::string language = getProperty("persist.sys.language", "");
416    if (!language.empty()) {
417        const std::string country = getProperty("persist.sys.country", "");
418        const std::string variant = getProperty("persist.sys.localevar", "");
419
420        std::string out = language;
421        if (!country.empty()) {
422            out = out + "-" + country;
423        }
424
425        if (!variant.empty()) {
426            out = out + "-" + variant;
427        }
428
429        return out;
430    }
431
432    const std::string productLocale = getProperty("ro.product.locale", "");
433    if (!productLocale.empty()) {
434        return productLocale;
435    }
436
437    // If persist.sys.locale and ro.product.locale are missing,
438    // construct a locale value from the individual locale components.
439    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
440    const std::string productRegion = getProperty("ro.product.locale.region", "US");
441
442    return productLanguage + "-" + productRegion;
443}
444
445void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
446{
447    JavaVMOption opt;
448    opt.optionString = optionString;
449    opt.extraInfo = extraInfo;
450    mOptions.add(opt);
451}
452
453/*
454 * Parse a property containing space-separated options that should be
455 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
456 *
457 * This will cut up "extraOptsBuf" as we chop it into individual options.
458 *
459 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
460 *
461 * Adds the strings, if any, to mOptions.
462 */
463void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
464{
465    char* start = extraOptsBuf;
466    char* end = NULL;
467    while (*start != '\0') {
468        while (*start == ' ')                   /* skip leading whitespace */
469            start++;
470        if (*start == '\0')                     /* was trailing ws, bail */
471            break;
472
473        end = start+1;
474        while (*end != ' ' && *end != '\0')     /* find end of token */
475            end++;
476        if (*end == ' ')
477            *end++ = '\0';          /* mark end, advance to indicate more */
478
479        if (quotingArg != NULL) {
480            addOption(quotingArg);
481        }
482        addOption(start);
483        start = end;
484    }
485}
486
487/*
488 * Reads a "property" into "buffer" with a default of "defaultArg". If
489 * the property is non-empty, it is treated as a runtime option such
490 * as "-Xmx32m".
491 *
492 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
493 *
494 * If an argument is found, it is added to mOptions.
495 *
496 * If an option is found, it is added to mOptions and true is
497 * returned. Otherwise false is returned.
498 */
499bool AndroidRuntime::parseRuntimeOption(const char* property,
500                                        char* buffer,
501                                        const char* runtimeArg,
502                                        const char* defaultArg)
503{
504    strcpy(buffer, runtimeArg);
505    size_t runtimeArgLen = strlen(runtimeArg);
506    property_get(property, buffer+runtimeArgLen, defaultArg);
507    if (buffer[runtimeArgLen] == '\0') {
508        return false;
509    }
510    addOption(buffer);
511    return true;
512}
513
514/*
515 * Reads a "property" into "buffer". If the property is non-empty, it
516 * is treated as a dex2oat compiler option that should be
517 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
518 *
519 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
520 *
521 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
522 *
523 * If an option is found, it is added to mOptions and true is
524 * returned. Otherwise false is returned.
525 */
526bool AndroidRuntime::parseCompilerOption(const char* property,
527                                         char* buffer,
528                                         const char* compilerArg,
529                                         const char* quotingArg)
530{
531    strcpy(buffer, compilerArg);
532    size_t compilerArgLen = strlen(compilerArg);
533    property_get(property, buffer+compilerArgLen, "");
534    if (buffer[compilerArgLen] == '\0') {
535        return false;
536    }
537    addOption(quotingArg);
538    addOption(buffer);
539    return true;
540}
541
542/*
543 * Reads a "property" into "buffer". If the property is non-empty, it
544 * is treated as a dex2oat compiler runtime option that should be
545 * passed as a quoted option, e.g. "-Ximage-compiler-option
546 * --runtime-arg -Ximage-compiler-option -Xmx32m".
547 *
548 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
549 *
550 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
551 *
552 * If an option is found, it is added to mOptions and true is
553 * returned. Otherwise false is returned.
554 */
555bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
556                                                char* buffer,
557                                                const char* runtimeArg,
558                                                const char* quotingArg)
559{
560    strcpy(buffer, runtimeArg);
561    size_t runtimeArgLen = strlen(runtimeArg);
562    property_get(property, buffer+runtimeArgLen, "");
563    if (buffer[runtimeArgLen] == '\0') {
564        return false;
565    }
566    addOption(quotingArg);
567    addOption("--runtime-arg");
568    addOption(quotingArg);
569    addOption(buffer);
570    return true;
571}
572
573/*
574 * Start the Dalvik Virtual Machine.
575 *
576 * Various arguments, most determined by system properties, are passed in.
577 * The "mOptions" vector is updated.
578 *
579 * CAUTION: when adding options in here, be careful not to put the
580 * char buffer inside a nested scope.  Adding the buffer to the
581 * options using mOptions.add() does not copy the buffer, so if the
582 * buffer goes out of scope the option may be overwritten.  It's best
583 * to put the buffer at the top of the function so that it is more
584 * unlikely that someone will surround it in a scope at a later time
585 * and thus introduce a bug.
586 *
587 * Returns 0 on success.
588 */
589int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
590{
591    JavaVMInitArgs initArgs;
592    char propBuf[PROPERTY_VALUE_MAX];
593    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
594    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
595    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
596    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
597    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
598    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
599    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
600    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
601    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
602    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
603    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
604    char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
605    char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
606    char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
607    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
608    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
609    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
610    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
611    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
612    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
613    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
614    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
615    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
616    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
617    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
618    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
619    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
620    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
621    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
622    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
623    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
624    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
625    char extraOptsBuf[PROPERTY_VALUE_MAX];
626    char voldDecryptBuf[PROPERTY_VALUE_MAX];
627    enum {
628      kEMDefault,
629      kEMIntPortable,
630      kEMIntFast,
631      kEMJitCompiler,
632    } executionMode = kEMDefault;
633    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
634    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
635    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
636    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
637    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
638    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
639    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
640
641    bool checkJni = false;
642    property_get("dalvik.vm.checkjni", propBuf, "");
643    if (strcmp(propBuf, "true") == 0) {
644        checkJni = true;
645    } else if (strcmp(propBuf, "false") != 0) {
646        /* property is neither true nor false; fall back on kernel parameter */
647        property_get("ro.kernel.android.checkjni", propBuf, "");
648        if (propBuf[0] == '1') {
649            checkJni = true;
650        }
651    }
652    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
653    if (checkJni) {
654        /* extended JNI checking */
655        addOption("-Xcheck:jni");
656
657        /* with -Xcheck:jni, this provides a JNI function call trace */
658        //addOption("-verbose:jni");
659    }
660
661    property_get("dalvik.vm.execution-mode", propBuf, "");
662    if (strcmp(propBuf, "int:portable") == 0) {
663        executionMode = kEMIntPortable;
664    } else if (strcmp(propBuf, "int:fast") == 0) {
665        executionMode = kEMIntFast;
666    } else if (strcmp(propBuf, "int:jit") == 0) {
667        executionMode = kEMJitCompiler;
668    }
669
670    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
671
672    strcpy(jniOptsBuf, "-Xjniopts:");
673    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
674        ALOGI("JNI options: '%s'\n", jniOptsBuf);
675    }
676
677    /* route exit() to our handler */
678    addOption("exit", (void*) runtime_exit);
679
680    /* route fprintf() to our handler */
681    addOption("vfprintf", (void*) runtime_vfprintf);
682
683    /* register the framework-specific "is sensitive thread" hook */
684    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
685
686    /* enable verbose; standard options are { jni, gc, class } */
687    //addOption("-verbose:jni");
688    addOption("-verbose:gc");
689    //addOption("-verbose:class");
690
691    /*
692     * The default starting and maximum size of the heap.  Larger
693     * values should be specified in a product property override.
694     */
695    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
696    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
697
698    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
699    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
700    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
701    parseRuntimeOption("dalvik.vm.heaptargetutilization",
702                       heaptargetutilizationOptsBuf,
703                       "-XX:HeapTargetUtilization=");
704
705    /*
706     * JIT related options.
707     */
708    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
709    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
710    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
711    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
712    property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
713    if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
714        addOption("-Xjitsaveprofilinginfo");
715    }
716
717    parseRuntimeOption("dalvik.vm.jitprithreadweight",
718                       jitprithreadweightOptBuf,
719                       "-Xjitprithreadweight:");
720
721    parseRuntimeOption("dalvik.vm.jittransitionweight",
722                       jittransitionweightOptBuf,
723                       "-Xjittransitionweight:");
724
725    property_get("ro.config.low_ram", propBuf, "");
726    if (strcmp(propBuf, "true") == 0) {
727      addOption("-XX:LowMemoryMode");
728    }
729
730    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
731    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
732
733    /*
734     * Enable debugging only for apps forked from zygote.
735     * Set suspend=y to pause during VM init and use android ADB transport.
736     */
737    if (zygote) {
738      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
739    }
740
741    parseRuntimeOption("dalvik.vm.lockprof.threshold",
742                       lockProfThresholdBuf,
743                       "-Xlockprofthreshold:");
744
745    if (executionMode == kEMIntPortable) {
746        addOption("-Xint:portable");
747    } else if (executionMode == kEMIntFast) {
748        addOption("-Xint:fast");
749    } else if (executionMode == kEMJitCompiler) {
750        addOption("-Xint:jit");
751    }
752
753    // If we are booting without the real /data, don't spend time compiling.
754    property_get("vold.decrypt", voldDecryptBuf, "");
755    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
756                             (strcmp(voldDecryptBuf, "1") == 0));
757
758    // Extra options for boot.art/boot.oat image generation.
759    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
760                               "-Xms", "-Ximage-compiler-option");
761    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
762                               "-Xmx", "-Ximage-compiler-option");
763    if (skip_compilation) {
764        addOption("-Ximage-compiler-option");
765        addOption("--compiler-filter=verify-none");
766    } else {
767        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
768                            "--compiler-filter=", "-Ximage-compiler-option");
769    }
770
771    // Make sure there is a preloaded-classes file.
772    if (!hasFile("/system/etc/preloaded-classes")) {
773        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
774              strerror(errno));
775        return -1;
776    }
777    addOption("-Ximage-compiler-option");
778    addOption("--image-classes=/system/etc/preloaded-classes");
779
780    // If there is a compiled-classes file, push it.
781    if (hasFile("/system/etc/compiled-classes")) {
782        addOption("-Ximage-compiler-option");
783        addOption("--compiled-classes=/system/etc/compiled-classes");
784    }
785
786    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
787    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
788
789    // Extra options for DexClassLoader.
790    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
791                               "-Xms", "-Xcompiler-option");
792    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
793                               "-Xmx", "-Xcompiler-option");
794    if (skip_compilation) {
795        addOption("-Xcompiler-option");
796        addOption("--compiler-filter=verify-none");
797
798        // We skip compilation when a minimal runtime is brought up for decryption. In that case
799        // /data is temporarily backed by a tmpfs, which is usually small.
800        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
801        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
802        // directly instead.
803        addOption("--runtime-arg");
804        addOption("-Xnorelocate");
805    } else {
806        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
807                            "--compiler-filter=", "-Xcompiler-option");
808    }
809    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
810    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
811                        "-Ximage-compiler-option");
812
813    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
814    // pass the instruction-set-features/variant as an image-compiler-option.
815    // TODO: Find a better way for the instruction-set.
816#if defined(__arm__)
817    constexpr const char* instruction_set = "arm";
818#elif defined(__aarch64__)
819    constexpr const char* instruction_set = "arm64";
820#elif defined(__mips__) && !defined(__LP64__)
821    constexpr const char* instruction_set = "mips";
822#elif defined(__mips__) && defined(__LP64__)
823    constexpr const char* instruction_set = "mips64";
824#elif defined(__i386__)
825    constexpr const char* instruction_set = "x86";
826#elif defined(__x86_64__)
827    constexpr const char* instruction_set = "x86_64";
828#else
829    constexpr const char* instruction_set = "unknown";
830#endif
831    // Note: it is OK to reuse the buffer, as the values are exactly the same between
832    //       * compiler-option, used for runtime compilation (DexClassLoader)
833    //       * image-compiler-option, used for boot-image compilation on device
834
835    // Copy the variant.
836    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
837    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
838                        "--instruction-set-variant=", "-Ximage-compiler-option");
839    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
840                        "--instruction-set-variant=", "-Xcompiler-option");
841    // Copy the features.
842    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
843    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
844                        "--instruction-set-features=", "-Ximage-compiler-option");
845    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
846                        "--instruction-set-features=", "-Xcompiler-option");
847
848
849    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
850    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
851
852    /* extra options; parse this late so it overrides others */
853    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
854    parseExtraOpts(extraOptsBuf, NULL);
855
856    /* Set the properties for locale */
857    {
858        strcpy(localeOption, "-Duser.locale=");
859        const std::string locale = readLocale();
860        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
861        addOption(localeOption);
862    }
863
864    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
865    property_get("ro.debuggable", propBuf, "0");
866    if (strcmp(propBuf, "1") == 0) {
867        property_get("dalvik.vm.method-trace", propBuf, "false");
868        if (strcmp(propBuf, "true") == 0) {
869            addOption("-Xmethod-trace");
870            parseRuntimeOption("dalvik.vm.method-trace-file",
871                               methodTraceFileBuf,
872                               "-Xmethod-trace-file:");
873            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
874                               methodTraceFileSizeBuf,
875                               "-Xmethod-trace-file-size:");
876            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
877            if (strcmp(propBuf, "true") == 0) {
878                addOption("-Xmethod-trace-stream");
879            }
880        }
881    }
882
883    // Native bridge library. "0" means that native bridge is disabled.
884    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
885    if (propBuf[0] == '\0') {
886        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
887    } else if (strcmp(propBuf, "0") != 0) {
888        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
889                 "-XX:NativeBridge=%s", propBuf);
890        addOption(nativeBridgeLibrary);
891    }
892
893#if defined(__LP64__)
894    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
895#else
896    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
897#endif  // defined(__LP64__)
898    property_get(cpu_abilist_property_name, propBuf, "");
899    if (propBuf[0] == '\0') {
900        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
901        return -1;
902    }
903    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
904    addOption(cpuAbiListBuf);
905
906    // Dalvik-cache pruning counter.
907    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
908                       "-Xzygote-max-boot-retry=");
909
910    /*
911     * When running with debug.generate-debug-info, add --generate-debug-info to
912     * the compiler options so that the boot image, if it is compiled on device,
913     * will include native debugging information.
914     */
915    property_get("debug.generate-debug-info", propBuf, "");
916    if (strcmp(propBuf, "true") == 0) {
917        addOption("-Xcompiler-option");
918        addOption("--generate-debug-info");
919        addOption("-Ximage-compiler-option");
920        addOption("--generate-debug-info");
921    }
922
923    /*
924     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
925     * contain the fingerprint and can be parsed.
926     */
927    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
928
929    initArgs.version = JNI_VERSION_1_4;
930    initArgs.options = mOptions.editArray();
931    initArgs.nOptions = mOptions.size();
932    initArgs.ignoreUnrecognized = JNI_FALSE;
933
934    /*
935     * Initialize the VM.
936     *
937     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
938     * If this call succeeds, the VM is ready, and we can start issuing
939     * JNI calls.
940     */
941    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
942        ALOGE("JNI_CreateJavaVM failed\n");
943        return -1;
944    }
945
946    return 0;
947}
948
949char* AndroidRuntime::toSlashClassName(const char* className)
950{
951    char* result = strdup(className);
952    for (char* cp = result; *cp != '\0'; cp++) {
953        if (*cp == '.') {
954            *cp = '/';
955        }
956    }
957    return result;
958}
959
960/** Create a Java string from an ASCII or Latin-1 string */
961jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
962    if (!bytes) return NULL;
963    int length = strlen(bytes);
964    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
965    if (!buffer) return NULL;
966    jchar* chp = buffer;
967    for (int i = 0; i < length; i++) {
968        *chp++ = *bytes++;
969    }
970    return env->NewString(buffer, length);
971}
972
973
974/*
975 * Start the Android runtime.  This involves starting the virtual machine
976 * and calling the "static void main(String[] args)" method in the class
977 * named by "className".
978 *
979 * Passes the main function two arguments, the class name and the specified
980 * options string.
981 */
982void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
983{
984    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
985            className != NULL ? className : "(unknown)", getuid());
986
987    static const String8 startSystemServer("start-system-server");
988
989    /*
990     * 'startSystemServer == true' means runtime is obsolete and not run from
991     * init.rc anymore, so we print out the boot start event here.
992     */
993    for (size_t i = 0; i < options.size(); ++i) {
994        if (options[i] == startSystemServer) {
995           /* track our progress through the boot sequence */
996           const int LOG_BOOT_PROGRESS_START = 3000;
997           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
998        }
999    }
1000
1001    const char* rootDir = getenv("ANDROID_ROOT");
1002    if (rootDir == NULL) {
1003        rootDir = "/system";
1004        if (!hasDir("/system")) {
1005            LOG_FATAL("No root directory specified, and /android does not exist.");
1006            return;
1007        }
1008        setenv("ANDROID_ROOT", rootDir, 1);
1009    }
1010
1011    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1012    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1013
1014    /* start the virtual machine */
1015    JniInvocation jni_invocation;
1016    jni_invocation.Init(NULL);
1017    JNIEnv* env;
1018    if (startVm(&mJavaVM, &env, zygote) != 0) {
1019        return;
1020    }
1021    onVmCreated(env);
1022
1023    /*
1024     * Register android functions.
1025     */
1026    if (startReg(env) < 0) {
1027        ALOGE("Unable to register all android natives\n");
1028        return;
1029    }
1030
1031    /*
1032     * We want to call main() with a String array with arguments in it.
1033     * At present we have two arguments, the class name and an option string.
1034     * Create an array to hold them.
1035     */
1036    jclass stringClass;
1037    jobjectArray strArray;
1038    jstring classNameStr;
1039
1040    stringClass = env->FindClass("java/lang/String");
1041    assert(stringClass != NULL);
1042    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1043    assert(strArray != NULL);
1044    classNameStr = env->NewStringUTF(className);
1045    assert(classNameStr != NULL);
1046    env->SetObjectArrayElement(strArray, 0, classNameStr);
1047
1048    for (size_t i = 0; i < options.size(); ++i) {
1049        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1050        assert(optionsStr != NULL);
1051        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1052    }
1053
1054    /*
1055     * Start VM.  This thread becomes the main thread of the VM, and will
1056     * not return until the VM exits.
1057     */
1058    char* slashClassName = toSlashClassName(className);
1059    jclass startClass = env->FindClass(slashClassName);
1060    if (startClass == NULL) {
1061        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1062        /* keep going */
1063    } else {
1064        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1065            "([Ljava/lang/String;)V");
1066        if (startMeth == NULL) {
1067            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1068            /* keep going */
1069        } else {
1070            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1071
1072#if 0
1073            if (env->ExceptionCheck())
1074                threadExitUncaughtException(env);
1075#endif
1076        }
1077    }
1078    free(slashClassName);
1079
1080    ALOGD("Shutting down VM\n");
1081    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1082        ALOGW("Warning: unable to detach main thread\n");
1083    if (mJavaVM->DestroyJavaVM() != 0)
1084        ALOGW("Warning: VM did not shut down cleanly\n");
1085}
1086
1087void AndroidRuntime::exit(int code)
1088{
1089    if (mExitWithoutCleanup) {
1090        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1091        ::_exit(code);
1092    } else {
1093        ALOGI("VM exiting with result code %d.", code);
1094        onExit(code);
1095        ::exit(code);
1096    }
1097}
1098
1099void AndroidRuntime::onVmCreated(JNIEnv* env)
1100{
1101    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1102}
1103
1104/*
1105 * Get the JNIEnv pointer for this thread.
1106 *
1107 * Returns NULL if the slot wasn't allocated or populated.
1108 */
1109/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1110{
1111    JNIEnv* env;
1112    JavaVM* vm = AndroidRuntime::getJavaVM();
1113    assert(vm != NULL);
1114
1115    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1116        return NULL;
1117    return env;
1118}
1119
1120/*
1121 * Makes the current thread visible to the VM.
1122 *
1123 * The JNIEnv pointer returned is only valid for the current thread, and
1124 * thus must be tucked into thread-local storage.
1125 */
1126static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1127{
1128    JavaVMAttachArgs args;
1129    JavaVM* vm;
1130    jint result;
1131
1132    vm = AndroidRuntime::getJavaVM();
1133    assert(vm != NULL);
1134
1135    args.version = JNI_VERSION_1_4;
1136    args.name = (char*) threadName;
1137    args.group = NULL;
1138
1139    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1140    if (result != JNI_OK)
1141        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1142
1143    return result;
1144}
1145
1146/*
1147 * Detach the current thread from the set visible to the VM.
1148 */
1149static int javaDetachThread(void)
1150{
1151    JavaVM* vm;
1152    jint result;
1153
1154    vm = AndroidRuntime::getJavaVM();
1155    assert(vm != NULL);
1156
1157    result = vm->DetachCurrentThread();
1158    if (result != JNI_OK)
1159        ALOGE("ERROR: thread detach failed\n");
1160    return result;
1161}
1162
1163/*
1164 * When starting a native thread that will be visible from the VM, we
1165 * bounce through this to get the right attach/detach action.
1166 * Note that this function calls free(args)
1167 */
1168/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1169    void* start = ((void**)args)[0];
1170    void* userData = ((void **)args)[1];
1171    char* name = (char*) ((void **)args)[2];        // we own this storage
1172    free(args);
1173    JNIEnv* env;
1174    int result;
1175
1176    /* hook us into the VM */
1177    if (javaAttachThread(name, &env) != JNI_OK)
1178        return -1;
1179
1180    /* start the thread running */
1181    result = (*(android_thread_func_t)start)(userData);
1182
1183    /* unhook us */
1184    javaDetachThread();
1185    free(name);
1186
1187    return result;
1188}
1189
1190/*
1191 * This is invoked from androidCreateThreadEtc() via the callback
1192 * set with androidSetCreateThreadFunc().
1193 *
1194 * We need to create the new thread in such a way that it gets hooked
1195 * into the VM before it really starts executing.
1196 */
1197/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1198                                android_thread_func_t entryFunction,
1199                                void* userData,
1200                                const char* threadName,
1201                                int32_t threadPriority,
1202                                size_t threadStackSize,
1203                                android_thread_id_t* threadId)
1204{
1205    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1206    int result;
1207
1208    LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1209
1210    args[0] = (void*) entryFunction;
1211    args[1] = userData;
1212    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1213
1214    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1215        threadName, threadPriority, threadStackSize, threadId);
1216    return result;
1217}
1218
1219/*
1220 * Create a thread that is visible from the VM.
1221 *
1222 * This is called from elsewhere in the library.
1223 */
1224/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1225    void (*start)(void *), void* arg)
1226{
1227    android_thread_id_t threadId = 0;
1228    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1229        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1230    return threadId;
1231}
1232
1233#if 0
1234static void quickTest(void* arg)
1235{
1236    const char* str = (const char*) arg;
1237
1238    printf("In quickTest: %s\n", str);
1239}
1240#endif
1241
1242#ifdef NDEBUG
1243    #define REG_JNI(name)      { name }
1244    struct RegJNIRec {
1245        int (*mProc)(JNIEnv*);
1246    };
1247#else
1248    #define REG_JNI(name)      { name, #name }
1249    struct RegJNIRec {
1250        int (*mProc)(JNIEnv*);
1251        const char* mName;
1252    };
1253#endif
1254
1255typedef void (*RegJAMProc)();
1256
1257static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1258{
1259    for (size_t i = 0; i < count; i++) {
1260        if (array[i].mProc(env) < 0) {
1261#ifndef NDEBUG
1262            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1263#endif
1264            return -1;
1265        }
1266    }
1267    return 0;
1268}
1269
1270static const RegJNIRec gRegJNI[] = {
1271    REG_JNI(register_com_android_internal_os_RuntimeInit),
1272    REG_JNI(register_android_os_SystemClock),
1273    REG_JNI(register_android_util_EventLog),
1274    REG_JNI(register_android_util_Log),
1275    REG_JNI(register_android_util_MemoryIntArray),
1276    REG_JNI(register_android_util_PathParser),
1277    REG_JNI(register_android_app_admin_SecurityLog),
1278    REG_JNI(register_android_content_AssetManager),
1279    REG_JNI(register_android_content_StringBlock),
1280    REG_JNI(register_android_content_XmlBlock),
1281    REG_JNI(register_android_text_AndroidCharacter),
1282    REG_JNI(register_android_text_StaticLayout),
1283    REG_JNI(register_android_text_AndroidBidi),
1284    REG_JNI(register_android_view_InputDevice),
1285    REG_JNI(register_android_view_KeyCharacterMap),
1286    REG_JNI(register_android_os_Process),
1287    REG_JNI(register_android_os_SystemProperties),
1288    REG_JNI(register_android_os_Binder),
1289    REG_JNI(register_android_os_Parcel),
1290    REG_JNI(register_android_nio_utils),
1291    REG_JNI(register_android_graphics_Canvas),
1292    REG_JNI(register_android_graphics_Graphics),
1293    REG_JNI(register_android_view_DisplayEventReceiver),
1294    REG_JNI(register_android_view_RenderNode),
1295    REG_JNI(register_android_view_RenderNodeAnimator),
1296    REG_JNI(register_android_view_GraphicBuffer),
1297    REG_JNI(register_android_view_DisplayListCanvas),
1298    REG_JNI(register_android_view_HardwareLayer),
1299    REG_JNI(register_android_view_ThreadedRenderer),
1300    REG_JNI(register_android_view_Surface),
1301    REG_JNI(register_android_view_SurfaceControl),
1302    REG_JNI(register_android_view_SurfaceSession),
1303    REG_JNI(register_android_view_TextureView),
1304    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1305    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1306    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1307    REG_JNI(register_android_opengl_jni_EGL14),
1308    REG_JNI(register_android_opengl_jni_EGLExt),
1309    REG_JNI(register_android_opengl_jni_GLES10),
1310    REG_JNI(register_android_opengl_jni_GLES10Ext),
1311    REG_JNI(register_android_opengl_jni_GLES11),
1312    REG_JNI(register_android_opengl_jni_GLES11Ext),
1313    REG_JNI(register_android_opengl_jni_GLES20),
1314    REG_JNI(register_android_opengl_jni_GLES30),
1315    REG_JNI(register_android_opengl_jni_GLES31),
1316    REG_JNI(register_android_opengl_jni_GLES31Ext),
1317    REG_JNI(register_android_opengl_jni_GLES32),
1318
1319    REG_JNI(register_android_graphics_Bitmap),
1320    REG_JNI(register_android_graphics_BitmapFactory),
1321    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1322    REG_JNI(register_android_graphics_Camera),
1323    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1324    REG_JNI(register_android_graphics_CanvasProperty),
1325    REG_JNI(register_android_graphics_ColorFilter),
1326    REG_JNI(register_android_graphics_DrawFilter),
1327    REG_JNI(register_android_graphics_FontFamily),
1328    REG_JNI(register_android_graphics_Interpolator),
1329    REG_JNI(register_android_graphics_LayerRasterizer),
1330    REG_JNI(register_android_graphics_MaskFilter),
1331    REG_JNI(register_android_graphics_Matrix),
1332    REG_JNI(register_android_graphics_Movie),
1333    REG_JNI(register_android_graphics_NinePatch),
1334    REG_JNI(register_android_graphics_Paint),
1335    REG_JNI(register_android_graphics_Path),
1336    REG_JNI(register_android_graphics_PathMeasure),
1337    REG_JNI(register_android_graphics_PathEffect),
1338    REG_JNI(register_android_graphics_Picture),
1339    REG_JNI(register_android_graphics_PorterDuff),
1340    REG_JNI(register_android_graphics_Rasterizer),
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_Xfermode),
1346    REG_JNI(register_android_graphics_YuvImage),
1347    REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
1348    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1349    REG_JNI(register_android_graphics_pdf_PdfDocument),
1350    REG_JNI(register_android_graphics_pdf_PdfEditor),
1351    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1352
1353    REG_JNI(register_android_database_CursorWindow),
1354    REG_JNI(register_android_database_SQLiteConnection),
1355    REG_JNI(register_android_database_SQLiteGlobal),
1356    REG_JNI(register_android_database_SQLiteDebug),
1357    REG_JNI(register_android_os_Debug),
1358    REG_JNI(register_android_os_FileObserver),
1359    REG_JNI(register_android_os_MessageQueue),
1360    REG_JNI(register_android_os_SELinux),
1361    REG_JNI(register_android_os_Trace),
1362    REG_JNI(register_android_os_UEventObserver),
1363    REG_JNI(register_android_net_LocalSocketImpl),
1364    REG_JNI(register_android_net_NetworkUtils),
1365    REG_JNI(register_android_net_TrafficStats),
1366    REG_JNI(register_android_os_MemoryFile),
1367    REG_JNI(register_com_android_internal_os_PathClassLoaderFactory),
1368    REG_JNI(register_com_android_internal_os_Zygote),
1369    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1370    REG_JNI(register_android_hardware_Camera),
1371    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1372    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1373    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1374    REG_JNI(register_android_hardware_camera2_DngCreator),
1375    REG_JNI(register_android_hardware_Radio),
1376    REG_JNI(register_android_hardware_SensorManager),
1377    REG_JNI(register_android_hardware_SerialPort),
1378    REG_JNI(register_android_hardware_SoundTrigger),
1379    REG_JNI(register_android_hardware_UsbDevice),
1380    REG_JNI(register_android_hardware_UsbDeviceConnection),
1381    REG_JNI(register_android_hardware_UsbRequest),
1382    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1383    REG_JNI(register_android_hardware_location_ContextHubService),
1384    REG_JNI(register_android_media_AudioRecord),
1385    REG_JNI(register_android_media_AudioSystem),
1386    REG_JNI(register_android_media_AudioTrack),
1387    REG_JNI(register_android_media_JetPlayer),
1388    REG_JNI(register_android_media_RemoteDisplay),
1389    REG_JNI(register_android_media_ToneGenerator),
1390
1391    REG_JNI(register_android_opengl_classes),
1392    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1393    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1394    REG_JNI(register_android_backup_BackupDataInput),
1395    REG_JNI(register_android_backup_BackupDataOutput),
1396    REG_JNI(register_android_backup_FileBackupHelperBase),
1397    REG_JNI(register_android_backup_BackupHelperDispatcher),
1398    REG_JNI(register_android_app_backup_FullBackup),
1399    REG_JNI(register_android_app_Activity),
1400    REG_JNI(register_android_app_ActivityThread),
1401    REG_JNI(register_android_app_ApplicationLoaders),
1402    REG_JNI(register_android_app_NativeActivity),
1403    REG_JNI(register_android_util_jar_StrictJarFile),
1404    REG_JNI(register_android_view_InputChannel),
1405    REG_JNI(register_android_view_InputEventReceiver),
1406    REG_JNI(register_android_view_InputEventSender),
1407    REG_JNI(register_android_view_InputQueue),
1408    REG_JNI(register_android_view_KeyEvent),
1409    REG_JNI(register_android_view_MotionEvent),
1410    REG_JNI(register_android_view_PointerIcon),
1411    REG_JNI(register_android_view_VelocityTracker),
1412
1413    REG_JNI(register_android_content_res_ObbScanner),
1414    REG_JNI(register_android_content_res_Configuration),
1415
1416    REG_JNI(register_android_animation_PropertyValuesHolder),
1417    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1418    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1419
1420};
1421
1422/*
1423 * Register android native functions with the VM.
1424 */
1425/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1426{
1427    ATRACE_NAME("RegisterAndroidNatives");
1428    /*
1429     * This hook causes all future threads created in this process to be
1430     * attached to the JavaVM.  (This needs to go away in favor of JNI
1431     * Attach calls.)
1432     */
1433    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1434
1435    ALOGV("--- registering native functions ---\n");
1436
1437    /*
1438     * Every "register" function calls one or more things that return
1439     * a local reference (e.g. FindClass).  Because we haven't really
1440     * started the VM yet, they're all getting stored in the base frame
1441     * and never released.  Use Push/Pop to manage the storage.
1442     */
1443    env->PushLocalFrame(200);
1444
1445    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1446        env->PopLocalFrame(NULL);
1447        return -1;
1448    }
1449    env->PopLocalFrame(NULL);
1450
1451    //createJavaThread("fubar", quickTest, (void*) "hello");
1452
1453    return 0;
1454}
1455
1456AndroidRuntime* AndroidRuntime::getRuntime()
1457{
1458    return gCurRuntime;
1459}
1460
1461/**
1462 * Used by surface flinger's DdmConnection to register native methods from
1463 * the framework.
1464 */
1465extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1466    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1467}
1468}   // namespace android
1469