AndroidRuntime.cpp revision 965ecbbb3eb19007690c333ab3aa05e380deb633 
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);
98
99extern int register_android_media_AudioRecord(JNIEnv *env);
100extern int register_android_media_AudioSystem(JNIEnv *env);
101extern int register_android_media_AudioTrack(JNIEnv *env);
102extern int register_android_media_JetPlayer(JNIEnv *env);
103extern int register_android_media_ToneGenerator(JNIEnv *env);
104
105namespace android {
106
107/*
108 * JNI-based registration functions.  Note these are properly contained in
109 * namespace android.
110 */
111extern int register_android_content_AssetManager(JNIEnv* env);
112extern int register_android_util_EventLog(JNIEnv* env);
113extern int register_android_util_Log(JNIEnv* env);
114extern int register_android_util_PathParser(JNIEnv* env);
115extern int register_android_content_StringBlock(JNIEnv* env);
116extern int register_android_content_XmlBlock(JNIEnv* env);
117extern int register_android_graphics_Canvas(JNIEnv* env);
118extern int register_android_graphics_CanvasProperty(JNIEnv* env);
119extern int register_android_graphics_ColorFilter(JNIEnv* env);
120extern int register_android_graphics_DrawFilter(JNIEnv* env);
121extern int register_android_graphics_FontFamily(JNIEnv* env);
122extern int register_android_graphics_LayerRasterizer(JNIEnv*);
123extern int register_android_graphics_Matrix(JNIEnv* env);
124extern int register_android_graphics_Paint(JNIEnv* env);
125extern int register_android_graphics_Path(JNIEnv* env);
126extern int register_android_graphics_PathMeasure(JNIEnv* env);
127extern int register_android_graphics_Picture(JNIEnv*);
128extern int register_android_graphics_PorterDuff(JNIEnv* env);
129extern int register_android_graphics_Rasterizer(JNIEnv* env);
130extern int register_android_graphics_Region(JNIEnv* env);
131extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
132extern int register_android_graphics_Xfermode(JNIEnv* env);
133extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
134extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
135extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
136extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
137extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
138extern int register_android_view_DisplayListCanvas(JNIEnv* env);
139extern int register_android_view_GraphicBuffer(JNIEnv* env);
140extern int register_android_view_HardwareLayer(JNIEnv* env);
141extern int register_android_view_RenderNode(JNIEnv* env);
142extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
143extern int register_android_view_Surface(JNIEnv* env);
144extern int register_android_view_SurfaceControl(JNIEnv* env);
145extern int register_android_view_SurfaceSession(JNIEnv* env);
146extern int register_android_view_TextureView(JNIEnv* env);
147extern int register_android_view_ThreadedRenderer(JNIEnv* env);
148extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
149extern int register_android_database_CursorWindow(JNIEnv* env);
150extern int register_android_database_SQLiteConnection(JNIEnv* env);
151extern int register_android_database_SQLiteGlobal(JNIEnv* env);
152extern int register_android_database_SQLiteDebug(JNIEnv* env);
153extern int register_android_nio_utils(JNIEnv* env);
154extern int register_android_os_Debug(JNIEnv* env);
155extern int register_android_os_MessageQueue(JNIEnv* env);
156extern int register_android_os_Parcel(JNIEnv* env);
157extern int register_android_os_SELinux(JNIEnv* env);
158extern int register_android_os_SystemProperties(JNIEnv *env);
159extern int register_android_os_SystemClock(JNIEnv* env);
160extern int register_android_os_Trace(JNIEnv* env);
161extern int register_android_os_FileObserver(JNIEnv *env);
162extern int register_android_os_UEventObserver(JNIEnv* env);
163extern int register_android_os_MemoryFile(JNIEnv* env);
164extern int register_android_net_LocalSocketImpl(JNIEnv* env);
165extern int register_android_net_NetworkUtils(JNIEnv* env);
166extern int register_android_net_TrafficStats(JNIEnv* env);
167extern int register_android_text_AndroidCharacter(JNIEnv *env);
168extern int register_android_text_StaticLayout(JNIEnv *env);
169extern int register_android_text_AndroidBidi(JNIEnv *env);
170extern int register_android_opengl_classes(JNIEnv *env);
171extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
172extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
173extern int register_android_backup_BackupDataInput(JNIEnv *env);
174extern int register_android_backup_BackupDataOutput(JNIEnv *env);
175extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
176extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
177extern int register_android_app_backup_FullBackup(JNIEnv *env);
178extern int register_android_app_ActivityThread(JNIEnv *env);
179extern int register_android_app_NativeActivity(JNIEnv *env);
180extern int register_android_media_RemoteDisplay(JNIEnv *env);
181extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
182extern int register_android_view_InputChannel(JNIEnv* env);
183extern int register_android_view_InputDevice(JNIEnv* env);
184extern int register_android_view_InputEventReceiver(JNIEnv* env);
185extern int register_android_view_InputEventSender(JNIEnv* env);
186extern int register_android_view_InputQueue(JNIEnv* env);
187extern int register_android_view_KeyCharacterMap(JNIEnv *env);
188extern int register_android_view_KeyEvent(JNIEnv* env);
189extern int register_android_view_MotionEvent(JNIEnv* env);
190extern int register_android_view_PointerIcon(JNIEnv* env);
191extern int register_android_view_VelocityTracker(JNIEnv* env);
192extern int register_android_content_res_ObbScanner(JNIEnv* env);
193extern int register_android_content_res_Configuration(JNIEnv* env);
194extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
195extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
196extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
197extern int register_com_android_internal_os_Zygote(JNIEnv *env);
198extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
199extern int register_android_os_HardwarePropertiesManager(JNIEnv *env);
200
201static AndroidRuntime* gCurRuntime = NULL;
202
203/*
204 * Code written in the Java Programming Language calls here from main().
205 */
206static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
207{
208    gCurRuntime->onStarted();
209}
210
211static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
212{
213    gCurRuntime->onZygoteInit();
214}
215
216static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
217        jobject clazz, jboolean exitWithoutCleanup)
218{
219    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
220}
221
222/*
223 * JNI registration.
224 */
225static const JNINativeMethod gMethods[] = {
226    { "nativeFinishInit", "()V",
227        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
228    { "nativeZygoteInit", "()V",
229        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
230    { "nativeSetExitWithoutCleanup", "(Z)V",
231        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
232};
233
234int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
235{
236    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
237        gMethods, NELEM(gMethods));
238}
239
240// ----------------------------------------------------------------------
241
242/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
243
244AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
245        mExitWithoutCleanup(false),
246        mArgBlockStart(argBlockStart),
247        mArgBlockLength(argBlockLength)
248{
249    SkGraphics::Init();
250    // There is also a global font cache, but its budget is specified by
251    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
252
253    // Pre-allocate enough space to hold a fair number of options.
254    mOptions.setCapacity(20);
255
256    assert(gCurRuntime == NULL);        // one per process
257    gCurRuntime = this;
258}
259
260AndroidRuntime::~AndroidRuntime()
261{
262    SkGraphics::Term();
263}
264
265/*
266 * Register native methods using JNI.
267 */
268/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
269    const char* className, const JNINativeMethod* gMethods, int numMethods)
270{
271    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
272}
273
274void AndroidRuntime::setArgv0(const char* argv0) {
275    memset(mArgBlockStart, 0, mArgBlockLength);
276    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
277}
278
279status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
280    const Vector<String8>& args)
281{
282    JNIEnv* env;
283    jmethodID methodId;
284
285    ALOGD("Calling main entry %s", className.string());
286
287    env = getJNIEnv();
288    if (clazz == NULL || env == NULL) {
289        return UNKNOWN_ERROR;
290    }
291
292    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
293    if (methodId == NULL) {
294        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
295        return UNKNOWN_ERROR;
296    }
297
298    /*
299     * We want to call main() with a String array with our arguments in it.
300     * Create an array and populate it.
301     */
302    jclass stringClass;
303    jobjectArray strArray;
304
305    const size_t numArgs = args.size();
306    stringClass = env->FindClass("java/lang/String");
307    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
308
309    for (size_t i = 0; i < numArgs; i++) {
310        jstring argStr = env->NewStringUTF(args[i].string());
311        env->SetObjectArrayElement(strArray, i, argStr);
312    }
313
314    env->CallStaticVoidMethod(clazz, methodId, strArray);
315    return NO_ERROR;
316}
317
318/*
319 * The VM calls this through the "exit" hook.
320 */
321static void runtime_exit(int code)
322{
323    gCurRuntime->exit(code);
324}
325
326/*
327 * The VM calls this through the "vfprintf" hook.
328 *
329 * We ignore "fp" and just write the results to the log file.
330 */
331static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
332{
333    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
334}
335
336/**
337 * The VM calls this when mutex contention debugging is enabled to
338 * determine whether or not the blocked thread was a "sensitive thread"
339 * for user responsiveness/smoothess.
340 *
341 * Our policy for this is whether or not we're tracing any StrictMode
342 * events on this thread (which we might've inherited via Binder calls
343 * into us)
344 */
345static bool runtime_isSensitiveThread() {
346    IPCThreadState* state = IPCThreadState::selfOrNull();
347    return state && state->getStrictModePolicy() != 0;
348}
349
350static int hasDir(const char* dir)
351{
352    struct stat s;
353    int res = stat(dir, &s);
354    if (res == 0) {
355        return S_ISDIR(s.st_mode);
356    }
357    return 0;
358}
359
360static bool hasFile(const char* file) {
361    struct stat s;
362    int res = stat(file, &s);
363    if (res == 0) {
364        return S_ISREG(s.st_mode);
365    }
366    return false;
367}
368
369// Convenience wrapper over the property API that returns an
370// std::string.
371std::string getProperty(const char* key, const char* defaultValue) {
372    std::vector<char> temp(PROPERTY_VALUE_MAX);
373    const int len = property_get(key, &temp[0], defaultValue);
374    if (len < 0) {
375        return "";
376    }
377    return std::string(&temp[0], len);
378}
379
380/*
381 * Read the persistent locale. Inspects the following system properties
382 * (in order) and returns the first non-empty property in the list :
383 *
384 * (1) persist.sys.locale
385 * (2) persist.sys.language/country/localevar (country and localevar are
386 * inspected iff. language is non-empty.
387 * (3) ro.product.locale
388 * (4) ro.product.locale.language/region
389 *
390 * Note that we need to inspect persist.sys.language/country/localevar to
391 * preserve language settings for devices that are upgrading from Lollipop
392 * to M. The same goes for ro.product.locale.language/region as well.
393 */
394const std::string readLocale()
395{
396    const std::string locale = getProperty("persist.sys.locale", "");
397    if (!locale.empty()) {
398        return locale;
399    }
400
401    const std::string language = getProperty("persist.sys.language", "");
402    if (!language.empty()) {
403        const std::string country = getProperty("persist.sys.country", "");
404        const std::string variant = getProperty("persist.sys.localevar", "");
405
406        std::string out = language;
407        if (!country.empty()) {
408            out = out + "-" + country;
409        }
410
411        if (!variant.empty()) {
412            out = out + "-" + variant;
413        }
414
415        return out;
416    }
417
418    const std::string productLocale = getProperty("ro.product.locale", "");
419    if (!productLocale.empty()) {
420        return productLocale;
421    }
422
423    // If persist.sys.locale and ro.product.locale are missing,
424    // construct a locale value from the individual locale components.
425    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
426    const std::string productRegion = getProperty("ro.product.locale.region", "US");
427
428    return productLanguage + "-" + productRegion;
429}
430
431void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
432{
433    JavaVMOption opt;
434    opt.optionString = optionString;
435    opt.extraInfo = extraInfo;
436    mOptions.add(opt);
437}
438
439/*
440 * Parse a property containing space-separated options that should be
441 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
442 *
443 * This will cut up "extraOptsBuf" as we chop it into individual options.
444 *
445 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
446 *
447 * Adds the strings, if any, to mOptions.
448 */
449void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
450{
451    char* start = extraOptsBuf;
452    char* end = NULL;
453    while (*start != '\0') {
454        while (*start == ' ')                   /* skip leading whitespace */
455            start++;
456        if (*start == '\0')                     /* was trailing ws, bail */
457            break;
458
459        end = start+1;
460        while (*end != ' ' && *end != '\0')     /* find end of token */
461            end++;
462        if (*end == ' ')
463            *end++ = '\0';          /* mark end, advance to indicate more */
464
465        if (quotingArg != NULL) {
466            addOption(quotingArg);
467        }
468        addOption(start);
469        start = end;
470    }
471}
472
473/*
474 * Reads a "property" into "buffer" with a default of "defaultArg". If
475 * the property is non-empty, it is treated as a runtime option such
476 * as "-Xmx32m".
477 *
478 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
479 *
480 * If an argument is found, it is added to mOptions.
481 *
482 * If an option is found, it is added to mOptions and true is
483 * returned. Otherwise false is returned.
484 */
485bool AndroidRuntime::parseRuntimeOption(const char* property,
486                                        char* buffer,
487                                        const char* runtimeArg,
488                                        const char* defaultArg)
489{
490    strcpy(buffer, runtimeArg);
491    size_t runtimeArgLen = strlen(runtimeArg);
492    property_get(property, buffer+runtimeArgLen, defaultArg);
493    if (buffer[runtimeArgLen] == '\0') {
494        return false;
495    }
496    addOption(buffer);
497    return true;
498}
499
500/*
501 * Reads a "property" into "buffer". If the property is non-empty, it
502 * is treated as a dex2oat compiler option that should be
503 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
504 *
505 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
506 *
507 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
508 *
509 * If an option is found, it is added to mOptions and true is
510 * returned. Otherwise false is returned.
511 */
512bool AndroidRuntime::parseCompilerOption(const char* property,
513                                         char* buffer,
514                                         const char* compilerArg,
515                                         const char* quotingArg)
516{
517    strcpy(buffer, compilerArg);
518    size_t compilerArgLen = strlen(compilerArg);
519    property_get(property, buffer+compilerArgLen, "");
520    if (buffer[compilerArgLen] == '\0') {
521        return false;
522    }
523    addOption(quotingArg);
524    addOption(buffer);
525    return true;
526}
527
528/*
529 * Reads a "property" into "buffer". If the property is non-empty, it
530 * is treated as a dex2oat compiler runtime option that should be
531 * passed as a quoted option, e.g. "-Ximage-compiler-option
532 * --runtime-arg -Ximage-compiler-option -Xmx32m".
533 *
534 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
535 *
536 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
537 *
538 * If an option is found, it is added to mOptions and true is
539 * returned. Otherwise false is returned.
540 */
541bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
542                                                char* buffer,
543                                                const char* runtimeArg,
544                                                const char* quotingArg)
545{
546    strcpy(buffer, runtimeArg);
547    size_t runtimeArgLen = strlen(runtimeArg);
548    property_get(property, buffer+runtimeArgLen, "");
549    if (buffer[runtimeArgLen] == '\0') {
550        return false;
551    }
552    addOption(quotingArg);
553    addOption("--runtime-arg");
554    addOption(quotingArg);
555    addOption(buffer);
556    return true;
557}
558
559/*
560 * Start the Dalvik Virtual Machine.
561 *
562 * Various arguments, most determined by system properties, are passed in.
563 * The "mOptions" vector is updated.
564 *
565 * CAUTION: when adding options in here, be careful not to put the
566 * char buffer inside a nested scope.  Adding the buffer to the
567 * options using mOptions.add() does not copy the buffer, so if the
568 * buffer goes out of scope the option may be overwritten.  It's best
569 * to put the buffer at the top of the function so that it is more
570 * unlikely that someone will surround it in a scope at a later time
571 * and thus introduce a bug.
572 *
573 * Returns 0 on success.
574 */
575int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
576{
577    JavaVMInitArgs initArgs;
578    char propBuf[PROPERTY_VALUE_MAX];
579    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
580    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
581    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
582    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
583    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
584    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
585    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
586    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
587    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
588    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
589    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
590    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
591    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
592    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
593    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
594    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
595    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
596    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
597    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
598    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
599    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
600    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
601    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
602    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
603    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
604    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
605    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
606    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
607    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
608    char extraOptsBuf[PROPERTY_VALUE_MAX];
609    char voldDecryptBuf[PROPERTY_VALUE_MAX];
610    enum {
611      kEMDefault,
612      kEMIntPortable,
613      kEMIntFast,
614      kEMJitCompiler,
615    } executionMode = kEMDefault;
616    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
617    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
618    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
619    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
620    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
621    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
622    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
623
624    bool checkJni = false;
625    property_get("dalvik.vm.checkjni", propBuf, "");
626    if (strcmp(propBuf, "true") == 0) {
627        checkJni = true;
628    } else if (strcmp(propBuf, "false") != 0) {
629        /* property is neither true nor false; fall back on kernel parameter */
630        property_get("ro.kernel.android.checkjni", propBuf, "");
631        if (propBuf[0] == '1') {
632            checkJni = true;
633        }
634    }
635    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
636    if (checkJni) {
637        /* extended JNI checking */
638        addOption("-Xcheck:jni");
639
640        /* with -Xcheck:jni, this provides a JNI function call trace */
641        //addOption("-verbose:jni");
642    }
643
644    property_get("dalvik.vm.execution-mode", propBuf, "");
645    if (strcmp(propBuf, "int:portable") == 0) {
646        executionMode = kEMIntPortable;
647    } else if (strcmp(propBuf, "int:fast") == 0) {
648        executionMode = kEMIntFast;
649    } else if (strcmp(propBuf, "int:jit") == 0) {
650        executionMode = kEMJitCompiler;
651    }
652
653    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
654
655    strcpy(jniOptsBuf, "-Xjniopts:");
656    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
657        ALOGI("JNI options: '%s'\n", jniOptsBuf);
658    }
659
660    /* route exit() to our handler */
661    addOption("exit", (void*) runtime_exit);
662
663    /* route fprintf() to our handler */
664    addOption("vfprintf", (void*) runtime_vfprintf);
665
666    /* register the framework-specific "is sensitive thread" hook */
667    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
668
669    /* enable verbose; standard options are { jni, gc, class } */
670    //addOption("-verbose:jni");
671    addOption("-verbose:gc");
672    //addOption("-verbose:class");
673
674    /*
675     * The default starting and maximum size of the heap.  Larger
676     * values should be specified in a product property override.
677     */
678    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
679    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
680
681    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
682    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
683    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
684    parseRuntimeOption("dalvik.vm.heaptargetutilization",
685                       heaptargetutilizationOptsBuf,
686                       "-XX:HeapTargetUtilization=");
687
688    /*
689     * JIT related options.
690     */
691    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
692    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
693    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
694    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
695
696    property_get("ro.config.low_ram", propBuf, "");
697    if (strcmp(propBuf, "true") == 0) {
698      addOption("-XX:LowMemoryMode");
699    }
700
701    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
702    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
703
704    /*
705     * Enable debugging only for apps forked from zygote.
706     * Set suspend=y to pause during VM init and use android ADB transport.
707     */
708    if (zygote) {
709      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
710    }
711
712    parseRuntimeOption("dalvik.vm.lockprof.threshold",
713                       lockProfThresholdBuf,
714                       "-Xlockprofthreshold:");
715
716    if (executionMode == kEMIntPortable) {
717        addOption("-Xint:portable");
718    } else if (executionMode == kEMIntFast) {
719        addOption("-Xint:fast");
720    } else if (executionMode == kEMJitCompiler) {
721        addOption("-Xint:jit");
722    }
723
724    // If we are booting without the real /data, don't spend time compiling.
725    property_get("vold.decrypt", voldDecryptBuf, "");
726    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
727                             (strcmp(voldDecryptBuf, "1") == 0));
728
729    // Extra options for boot.art/boot.oat image generation.
730    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
731                               "-Xms", "-Ximage-compiler-option");
732    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
733                               "-Xmx", "-Ximage-compiler-option");
734    if (skip_compilation) {
735        addOption("-Ximage-compiler-option");
736        addOption("--compiler-filter=verify-none");
737    } else {
738        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
739                            "--compiler-filter=", "-Ximage-compiler-option");
740    }
741
742    // Make sure there is a preloaded-classes file.
743    if (!hasFile("/system/etc/preloaded-classes")) {
744        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
745              strerror(errno));
746        return -1;
747    }
748    addOption("-Ximage-compiler-option");
749    addOption("--image-classes=/system/etc/preloaded-classes");
750
751    // If there is a compiled-classes file, push it.
752    if (hasFile("/system/etc/compiled-classes")) {
753        addOption("-Ximage-compiler-option");
754        addOption("--compiled-classes=/system/etc/compiled-classes");
755    }
756
757    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
758    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
759
760    // Extra options for DexClassLoader.
761    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
762                               "-Xms", "-Xcompiler-option");
763    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
764                               "-Xmx", "-Xcompiler-option");
765    if (skip_compilation) {
766        addOption("-Xcompiler-option");
767        addOption("--compiler-filter=verify-none");
768
769        // We skip compilation when a minimal runtime is brought up for decryption. In that case
770        // /data is temporarily backed by a tmpfs, which is usually small.
771        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
772        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
773        // directly instead.
774        addOption("--runtime-arg");
775        addOption("-Xnorelocate");
776    } else {
777        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
778                            "--compiler-filter=", "-Xcompiler-option");
779    }
780    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
781    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
782                        "-Ximage-compiler-option");
783
784    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
785    // pass the instruction-set-features/variant as an image-compiler-option.
786    // TODO: Find a better way for the instruction-set.
787#if defined(__arm__)
788    constexpr const char* instruction_set = "arm";
789#elif defined(__aarch64__)
790    constexpr const char* instruction_set = "arm64";
791#elif defined(__mips__) && !defined(__LP64__)
792    constexpr const char* instruction_set = "mips";
793#elif defined(__mips__) && defined(__LP64__)
794    constexpr const char* instruction_set = "mips64";
795#elif defined(__i386__)
796    constexpr const char* instruction_set = "x86";
797#elif defined(__x86_64__)
798    constexpr const char* instruction_set = "x86_64";
799#else
800    constexpr const char* instruction_set = "unknown";
801#endif
802    // Note: it is OK to reuse the buffer, as the values are exactly the same between
803    //       * compiler-option, used for runtime compilation (DexClassLoader)
804    //       * image-compiler-option, used for boot-image compilation on device
805
806    // Copy the variant.
807    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
808    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
809                        "--instruction-set-variant=", "-Ximage-compiler-option");
810    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
811                        "--instruction-set-variant=", "-Xcompiler-option");
812    // Copy the features.
813    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
814    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
815                        "--instruction-set-features=", "-Ximage-compiler-option");
816    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
817                        "--instruction-set-features=", "-Xcompiler-option");
818
819
820    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
821    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
822
823    /* extra options; parse this late so it overrides others */
824    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
825    parseExtraOpts(extraOptsBuf, NULL);
826
827    /* Set the properties for locale */
828    {
829        strcpy(localeOption, "-Duser.locale=");
830        const std::string locale = readLocale();
831        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
832        addOption(localeOption);
833    }
834
835    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
836    property_get("ro.debuggable", propBuf, "0");
837    if (strcmp(propBuf, "1") == 0) {
838        property_get("dalvik.vm.method-trace", propBuf, "false");
839        if (strcmp(propBuf, "true") == 0) {
840            addOption("-Xmethod-trace");
841            parseRuntimeOption("dalvik.vm.method-trace-file",
842                               methodTraceFileBuf,
843                               "-Xmethod-trace-file:");
844            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
845                               methodTraceFileSizeBuf,
846                               "-Xmethod-trace-file-size:");
847            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
848            if (strcmp(propBuf, "true") == 0) {
849                addOption("-Xmethod-trace-stream");
850            }
851        }
852    }
853
854    // Native bridge library. "0" means that native bridge is disabled.
855    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
856    if (propBuf[0] == '\0') {
857        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
858    } else if (strcmp(propBuf, "0") != 0) {
859        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
860                 "-XX:NativeBridge=%s", propBuf);
861        addOption(nativeBridgeLibrary);
862    }
863
864#if defined(__LP64__)
865    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
866#else
867    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
868#endif  // defined(__LP64__)
869    property_get(cpu_abilist_property_name, propBuf, "");
870    if (propBuf[0] == '\0') {
871        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
872        return -1;
873    }
874    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
875    addOption(cpuAbiListBuf);
876
877    // Dalvik-cache pruning counter.
878    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
879                       "-Xzygote-max-boot-retry=");
880
881    /*
882     * When running with debug.generate-debug-info, add --generate-debug-info to
883     * the compiler options so that the boot image, if it is compiled on device,
884     * will include native debugging information.
885     */
886    property_get("debug.generate-debug-info", propBuf, "");
887    if (strcmp(propBuf, "true") == 0) {
888        addOption("-Xcompiler-option");
889        addOption("--generate-debug-info");
890        addOption("-Ximage-compiler-option");
891        addOption("--generate-debug-info");
892    }
893
894    /*
895     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
896     * contain the fingerprint and can be parsed.
897     */
898    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
899
900    initArgs.version = JNI_VERSION_1_4;
901    initArgs.options = mOptions.editArray();
902    initArgs.nOptions = mOptions.size();
903    initArgs.ignoreUnrecognized = JNI_FALSE;
904
905    /*
906     * Initialize the VM.
907     *
908     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
909     * If this call succeeds, the VM is ready, and we can start issuing
910     * JNI calls.
911     */
912    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
913        ALOGE("JNI_CreateJavaVM failed\n");
914        return -1;
915    }
916
917    return 0;
918}
919
920char* AndroidRuntime::toSlashClassName(const char* className)
921{
922    char* result = strdup(className);
923    for (char* cp = result; *cp != '\0'; cp++) {
924        if (*cp == '.') {
925            *cp = '/';
926        }
927    }
928    return result;
929}
930
931/** Create a Java string from an ASCII or Latin-1 string */
932jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
933    if (!bytes) return NULL;
934    int length = strlen(bytes);
935    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
936    if (!buffer) return NULL;
937    jchar* chp = buffer;
938    for (int i = 0; i < length; i++) {
939        *chp++ = *bytes++;
940    }
941    return env->NewString(buffer, length);
942}
943
944
945/*
946 * Start the Android runtime.  This involves starting the virtual machine
947 * and calling the "static void main(String[] args)" method in the class
948 * named by "className".
949 *
950 * Passes the main function two arguments, the class name and the specified
951 * options string.
952 */
953void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
954{
955    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
956            className != NULL ? className : "(unknown)", getuid());
957
958    static const String8 startSystemServer("start-system-server");
959
960    /*
961     * 'startSystemServer == true' means runtime is obsolete and not run from
962     * init.rc anymore, so we print out the boot start event here.
963     */
964    for (size_t i = 0; i < options.size(); ++i) {
965        if (options[i] == startSystemServer) {
966           /* track our progress through the boot sequence */
967           const int LOG_BOOT_PROGRESS_START = 3000;
968           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
969        }
970    }
971
972    const char* rootDir = getenv("ANDROID_ROOT");
973    if (rootDir == NULL) {
974        rootDir = "/system";
975        if (!hasDir("/system")) {
976            LOG_FATAL("No root directory specified, and /android does not exist.");
977            return;
978        }
979        setenv("ANDROID_ROOT", rootDir, 1);
980    }
981
982    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
983    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
984
985    /* start the virtual machine */
986    JniInvocation jni_invocation;
987    jni_invocation.Init(NULL);
988    JNIEnv* env;
989    if (startVm(&mJavaVM, &env, zygote) != 0) {
990        return;
991    }
992    onVmCreated(env);
993
994    /*
995     * Register android functions.
996     */
997    if (startReg(env) < 0) {
998        ALOGE("Unable to register all android natives\n");
999        return;
1000    }
1001
1002    /*
1003     * We want to call main() with a String array with arguments in it.
1004     * At present we have two arguments, the class name and an option string.
1005     * Create an array to hold them.
1006     */
1007    jclass stringClass;
1008    jobjectArray strArray;
1009    jstring classNameStr;
1010
1011    stringClass = env->FindClass("java/lang/String");
1012    assert(stringClass != NULL);
1013    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1014    assert(strArray != NULL);
1015    classNameStr = env->NewStringUTF(className);
1016    assert(classNameStr != NULL);
1017    env->SetObjectArrayElement(strArray, 0, classNameStr);
1018
1019    for (size_t i = 0; i < options.size(); ++i) {
1020        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1021        assert(optionsStr != NULL);
1022        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1023    }
1024
1025    /*
1026     * Start VM.  This thread becomes the main thread of the VM, and will
1027     * not return until the VM exits.
1028     */
1029    char* slashClassName = toSlashClassName(className);
1030    jclass startClass = env->FindClass(slashClassName);
1031    if (startClass == NULL) {
1032        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1033        /* keep going */
1034    } else {
1035        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1036            "([Ljava/lang/String;)V");
1037        if (startMeth == NULL) {
1038            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1039            /* keep going */
1040        } else {
1041            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1042
1043#if 0
1044            if (env->ExceptionCheck())
1045                threadExitUncaughtException(env);
1046#endif
1047        }
1048    }
1049    free(slashClassName);
1050
1051    ALOGD("Shutting down VM\n");
1052    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1053        ALOGW("Warning: unable to detach main thread\n");
1054    if (mJavaVM->DestroyJavaVM() != 0)
1055        ALOGW("Warning: VM did not shut down cleanly\n");
1056}
1057
1058void AndroidRuntime::exit(int code)
1059{
1060    if (mExitWithoutCleanup) {
1061        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1062        ::_exit(code);
1063    } else {
1064        ALOGI("VM exiting with result code %d.", code);
1065        onExit(code);
1066        ::exit(code);
1067    }
1068}
1069
1070void AndroidRuntime::onVmCreated(JNIEnv* env)
1071{
1072    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1073}
1074
1075/*
1076 * Get the JNIEnv pointer for this thread.
1077 *
1078 * Returns NULL if the slot wasn't allocated or populated.
1079 */
1080/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1081{
1082    JNIEnv* env;
1083    JavaVM* vm = AndroidRuntime::getJavaVM();
1084    assert(vm != NULL);
1085
1086    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1087        return NULL;
1088    return env;
1089}
1090
1091/*
1092 * Makes the current thread visible to the VM.
1093 *
1094 * The JNIEnv pointer returned is only valid for the current thread, and
1095 * thus must be tucked into thread-local storage.
1096 */
1097static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1098{
1099    JavaVMAttachArgs args;
1100    JavaVM* vm;
1101    jint result;
1102
1103    vm = AndroidRuntime::getJavaVM();
1104    assert(vm != NULL);
1105
1106    args.version = JNI_VERSION_1_4;
1107    args.name = (char*) threadName;
1108    args.group = NULL;
1109
1110    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1111    if (result != JNI_OK)
1112        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1113
1114    return result;
1115}
1116
1117/*
1118 * Detach the current thread from the set visible to the VM.
1119 */
1120static int javaDetachThread(void)
1121{
1122    JavaVM* vm;
1123    jint result;
1124
1125    vm = AndroidRuntime::getJavaVM();
1126    assert(vm != NULL);
1127
1128    result = vm->DetachCurrentThread();
1129    if (result != JNI_OK)
1130        ALOGE("ERROR: thread detach failed\n");
1131    return result;
1132}
1133
1134/*
1135 * When starting a native thread that will be visible from the VM, we
1136 * bounce through this to get the right attach/detach action.
1137 * Note that this function calls free(args)
1138 */
1139/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1140    void* start = ((void**)args)[0];
1141    void* userData = ((void **)args)[1];
1142    char* name = (char*) ((void **)args)[2];        // we own this storage
1143    free(args);
1144    JNIEnv* env;
1145    int result;
1146
1147    /* hook us into the VM */
1148    if (javaAttachThread(name, &env) != JNI_OK)
1149        return -1;
1150
1151    /* start the thread running */
1152    result = (*(android_thread_func_t)start)(userData);
1153
1154    /* unhook us */
1155    javaDetachThread();
1156    free(name);
1157
1158    return result;
1159}
1160
1161/*
1162 * This is invoked from androidCreateThreadEtc() via the callback
1163 * set with androidSetCreateThreadFunc().
1164 *
1165 * We need to create the new thread in such a way that it gets hooked
1166 * into the VM before it really starts executing.
1167 */
1168/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1169                                android_thread_func_t entryFunction,
1170                                void* userData,
1171                                const char* threadName,
1172                                int32_t threadPriority,
1173                                size_t threadStackSize,
1174                                android_thread_id_t* threadId)
1175{
1176    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1177    int result;
1178
1179    if (!threadName)
1180        threadName = "unnamed thread";
1181
1182    args[0] = (void*) entryFunction;
1183    args[1] = userData;
1184    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1185
1186    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1187        threadName, threadPriority, threadStackSize, threadId);
1188    return result;
1189}
1190
1191/*
1192 * Create a thread that is visible from the VM.
1193 *
1194 * This is called from elsewhere in the library.
1195 */
1196/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1197    void (*start)(void *), void* arg)
1198{
1199    android_thread_id_t threadId = 0;
1200    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1201        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1202    return threadId;
1203}
1204
1205#if 0
1206static void quickTest(void* arg)
1207{
1208    const char* str = (const char*) arg;
1209
1210    printf("In quickTest: %s\n", str);
1211}
1212#endif
1213
1214#ifdef NDEBUG
1215    #define REG_JNI(name)      { name }
1216    struct RegJNIRec {
1217        int (*mProc)(JNIEnv*);
1218    };
1219#else
1220    #define REG_JNI(name)      { name, #name }
1221    struct RegJNIRec {
1222        int (*mProc)(JNIEnv*);
1223        const char* mName;
1224    };
1225#endif
1226
1227typedef void (*RegJAMProc)();
1228
1229static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1230{
1231    for (size_t i = 0; i < count; i++) {
1232        if (array[i].mProc(env) < 0) {
1233#ifndef NDEBUG
1234            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1235#endif
1236            return -1;
1237        }
1238    }
1239    return 0;
1240}
1241
1242static const RegJNIRec gRegJNI[] = {
1243    REG_JNI(register_com_android_internal_os_RuntimeInit),
1244    REG_JNI(register_android_os_SystemClock),
1245    REG_JNI(register_android_util_EventLog),
1246    REG_JNI(register_android_util_Log),
1247    REG_JNI(register_android_util_PathParser),
1248    REG_JNI(register_android_content_AssetManager),
1249    REG_JNI(register_android_content_StringBlock),
1250    REG_JNI(register_android_content_XmlBlock),
1251    REG_JNI(register_android_text_AndroidCharacter),
1252    REG_JNI(register_android_text_StaticLayout),
1253    REG_JNI(register_android_text_AndroidBidi),
1254    REG_JNI(register_android_view_InputDevice),
1255    REG_JNI(register_android_view_KeyCharacterMap),
1256    REG_JNI(register_android_os_Process),
1257    REG_JNI(register_android_os_SystemProperties),
1258    REG_JNI(register_android_os_Binder),
1259    REG_JNI(register_android_os_Parcel),
1260    REG_JNI(register_android_nio_utils),
1261    REG_JNI(register_android_graphics_Graphics),
1262    REG_JNI(register_android_view_DisplayEventReceiver),
1263    REG_JNI(register_android_view_RenderNode),
1264    REG_JNI(register_android_view_RenderNodeAnimator),
1265    REG_JNI(register_android_view_GraphicBuffer),
1266    REG_JNI(register_android_view_DisplayListCanvas),
1267    REG_JNI(register_android_view_HardwareLayer),
1268    REG_JNI(register_android_view_ThreadedRenderer),
1269    REG_JNI(register_android_view_Surface),
1270    REG_JNI(register_android_view_SurfaceControl),
1271    REG_JNI(register_android_view_SurfaceSession),
1272    REG_JNI(register_android_view_TextureView),
1273    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1274    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1275    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1276    REG_JNI(register_android_opengl_jni_EGL14),
1277    REG_JNI(register_android_opengl_jni_EGLExt),
1278    REG_JNI(register_android_opengl_jni_GLES10),
1279    REG_JNI(register_android_opengl_jni_GLES10Ext),
1280    REG_JNI(register_android_opengl_jni_GLES11),
1281    REG_JNI(register_android_opengl_jni_GLES11Ext),
1282    REG_JNI(register_android_opengl_jni_GLES20),
1283    REG_JNI(register_android_opengl_jni_GLES30),
1284    REG_JNI(register_android_opengl_jni_GLES31),
1285    REG_JNI(register_android_opengl_jni_GLES31Ext),
1286    REG_JNI(register_android_opengl_jni_GLES32),
1287
1288    REG_JNI(register_android_graphics_Bitmap),
1289    REG_JNI(register_android_graphics_BitmapFactory),
1290    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1291    REG_JNI(register_android_graphics_Camera),
1292    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1293    REG_JNI(register_android_graphics_Canvas),
1294    REG_JNI(register_android_graphics_CanvasProperty),
1295    REG_JNI(register_android_graphics_ColorFilter),
1296    REG_JNI(register_android_graphics_DrawFilter),
1297    REG_JNI(register_android_graphics_FontFamily),
1298    REG_JNI(register_android_graphics_Interpolator),
1299    REG_JNI(register_android_graphics_LayerRasterizer),
1300    REG_JNI(register_android_graphics_MaskFilter),
1301    REG_JNI(register_android_graphics_Matrix),
1302    REG_JNI(register_android_graphics_Movie),
1303    REG_JNI(register_android_graphics_NinePatch),
1304    REG_JNI(register_android_graphics_Paint),
1305    REG_JNI(register_android_graphics_Path),
1306    REG_JNI(register_android_graphics_PathMeasure),
1307    REG_JNI(register_android_graphics_PathEffect),
1308    REG_JNI(register_android_graphics_Picture),
1309    REG_JNI(register_android_graphics_PorterDuff),
1310    REG_JNI(register_android_graphics_Rasterizer),
1311    REG_JNI(register_android_graphics_Region),
1312    REG_JNI(register_android_graphics_Shader),
1313    REG_JNI(register_android_graphics_SurfaceTexture),
1314    REG_JNI(register_android_graphics_Typeface),
1315    REG_JNI(register_android_graphics_Xfermode),
1316    REG_JNI(register_android_graphics_YuvImage),
1317    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1318    REG_JNI(register_android_graphics_pdf_PdfDocument),
1319    REG_JNI(register_android_graphics_pdf_PdfEditor),
1320    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1321
1322    REG_JNI(register_android_database_CursorWindow),
1323    REG_JNI(register_android_database_SQLiteConnection),
1324    REG_JNI(register_android_database_SQLiteGlobal),
1325    REG_JNI(register_android_database_SQLiteDebug),
1326    REG_JNI(register_android_os_Debug),
1327    REG_JNI(register_android_os_FileObserver),
1328    REG_JNI(register_android_os_MessageQueue),
1329    REG_JNI(register_android_os_SELinux),
1330    REG_JNI(register_android_os_Trace),
1331    REG_JNI(register_android_os_UEventObserver),
1332    REG_JNI(register_android_net_LocalSocketImpl),
1333    REG_JNI(register_android_net_NetworkUtils),
1334    REG_JNI(register_android_net_TrafficStats),
1335    REG_JNI(register_android_os_MemoryFile),
1336    REG_JNI(register_com_android_internal_os_Zygote),
1337    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1338    REG_JNI(register_android_hardware_Camera),
1339    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1340    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1341    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1342    REG_JNI(register_android_hardware_camera2_DngCreator),
1343    REG_JNI(register_android_hardware_Radio),
1344    REG_JNI(register_android_hardware_SensorManager),
1345    REG_JNI(register_android_hardware_SerialPort),
1346    REG_JNI(register_android_hardware_SoundTrigger),
1347    REG_JNI(register_android_hardware_UsbDevice),
1348    REG_JNI(register_android_hardware_UsbDeviceConnection),
1349    REG_JNI(register_android_hardware_UsbRequest),
1350    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1351    REG_JNI(register_android_media_AudioRecord),
1352    REG_JNI(register_android_media_AudioSystem),
1353    REG_JNI(register_android_media_AudioTrack),
1354    REG_JNI(register_android_media_JetPlayer),
1355    REG_JNI(register_android_media_RemoteDisplay),
1356    REG_JNI(register_android_media_ToneGenerator),
1357
1358    REG_JNI(register_android_opengl_classes),
1359    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1360    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1361    REG_JNI(register_android_backup_BackupDataInput),
1362    REG_JNI(register_android_backup_BackupDataOutput),
1363    REG_JNI(register_android_backup_FileBackupHelperBase),
1364    REG_JNI(register_android_backup_BackupHelperDispatcher),
1365    REG_JNI(register_android_app_backup_FullBackup),
1366    REG_JNI(register_android_app_ActivityThread),
1367    REG_JNI(register_android_app_NativeActivity),
1368    REG_JNI(register_android_util_jar_StrictJarFile),
1369    REG_JNI(register_android_view_InputChannel),
1370    REG_JNI(register_android_view_InputEventReceiver),
1371    REG_JNI(register_android_view_InputEventSender),
1372    REG_JNI(register_android_view_InputQueue),
1373    REG_JNI(register_android_view_KeyEvent),
1374    REG_JNI(register_android_view_MotionEvent),
1375    REG_JNI(register_android_view_PointerIcon),
1376    REG_JNI(register_android_view_VelocityTracker),
1377
1378    REG_JNI(register_android_content_res_ObbScanner),
1379    REG_JNI(register_android_content_res_Configuration),
1380
1381    REG_JNI(register_android_animation_PropertyValuesHolder),
1382    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1383    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1384    REG_JNI(register_android_os_HardwarePropertiesManager),
1385
1386};
1387
1388/*
1389 * Register android native functions with the VM.
1390 */
1391/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1392{
1393    ATRACE_NAME("RegisterAndroidNatives");
1394    /*
1395     * This hook causes all future threads created in this process to be
1396     * attached to the JavaVM.  (This needs to go away in favor of JNI
1397     * Attach calls.)
1398     */
1399    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1400
1401    ALOGV("--- registering native functions ---\n");
1402
1403    /*
1404     * Every "register" function calls one or more things that return
1405     * a local reference (e.g. FindClass).  Because we haven't really
1406     * started the VM yet, they're all getting stored in the base frame
1407     * and never released.  Use Push/Pop to manage the storage.
1408     */
1409    env->PushLocalFrame(200);
1410
1411    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1412        env->PopLocalFrame(NULL);
1413        return -1;
1414    }
1415    env->PopLocalFrame(NULL);
1416
1417    //createJavaThread("fubar", quickTest, (void*) "hello");
1418
1419    return 0;
1420}
1421
1422AndroidRuntime* AndroidRuntime::getRuntime()
1423{
1424    return gCurRuntime;
1425}
1426
1427/**
1428 * Used by surface flinger's DdmConnection to register native methods from
1429 * the framework.
1430 */
1431extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1432    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1433}
1434}   // namespace android
1435