AndroidRuntime.cpp revision 6a8ad6d161d6846311267f5e4aa933b8490bc821 
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);
83
84extern int register_android_hardware_Camera(JNIEnv *env);
85extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
86extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env);
87extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env);
88extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
89extern int register_android_hardware_Radio(JNIEnv *env);
90extern int register_android_hardware_SensorManager(JNIEnv *env);
91extern int register_android_hardware_SerialPort(JNIEnv *env);
92extern int register_android_hardware_SoundTrigger(JNIEnv *env);
93extern int register_android_hardware_UsbDevice(JNIEnv *env);
94extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
95extern int register_android_hardware_UsbRequest(JNIEnv *env);
96extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
97
98extern int register_android_media_AudioRecord(JNIEnv *env);
99extern int register_android_media_AudioSystem(JNIEnv *env);
100extern int register_android_media_AudioTrack(JNIEnv *env);
101extern int register_android_media_JetPlayer(JNIEnv *env);
102extern int register_android_media_ToneGenerator(JNIEnv *env);
103
104namespace android {
105
106/*
107 * JNI-based registration functions.  Note these are properly contained in
108 * namespace android.
109 */
110extern int register_android_content_AssetManager(JNIEnv* env);
111extern int register_android_util_EventLog(JNIEnv* env);
112extern int register_android_util_Log(JNIEnv* env);
113extern int register_android_content_StringBlock(JNIEnv* env);
114extern int register_android_content_XmlBlock(JNIEnv* env);
115extern int register_android_emoji_EmojiFactory(JNIEnv* env);
116extern int register_android_graphics_Canvas(JNIEnv* env);
117extern int register_android_graphics_CanvasProperty(JNIEnv* env);
118extern int register_android_graphics_ColorFilter(JNIEnv* env);
119extern int register_android_graphics_DrawFilter(JNIEnv* env);
120extern int register_android_graphics_FontFamily(JNIEnv* env);
121extern int register_android_graphics_LayerRasterizer(JNIEnv*);
122extern int register_android_graphics_Matrix(JNIEnv* env);
123extern int register_android_graphics_Paint(JNIEnv* env);
124extern int register_android_graphics_Path(JNIEnv* env);
125extern int register_android_graphics_PathMeasure(JNIEnv* env);
126extern int register_android_graphics_Picture(JNIEnv*);
127extern int register_android_graphics_PorterDuff(JNIEnv* env);
128extern int register_android_graphics_Rasterizer(JNIEnv* env);
129extern int register_android_graphics_Region(JNIEnv* env);
130extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
131extern int register_android_graphics_Xfermode(JNIEnv* env);
132extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
133extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
134extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
135extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
136extern int register_android_view_DisplayListCanvas(JNIEnv* env);
137extern int register_android_view_GraphicBuffer(JNIEnv* env);
138extern int register_android_view_HardwareLayer(JNIEnv* env);
139extern int register_android_view_RenderNode(JNIEnv* env);
140extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
141extern int register_android_view_Surface(JNIEnv* env);
142extern int register_android_view_SurfaceControl(JNIEnv* env);
143extern int register_android_view_SurfaceSession(JNIEnv* env);
144extern int register_android_view_TextureView(JNIEnv* env);
145extern int register_android_view_ThreadedRenderer(JNIEnv* env);
146extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
147extern int register_android_database_CursorWindow(JNIEnv* env);
148extern int register_android_database_SQLiteConnection(JNIEnv* env);
149extern int register_android_database_SQLiteGlobal(JNIEnv* env);
150extern int register_android_database_SQLiteDebug(JNIEnv* env);
151extern int register_android_nio_utils(JNIEnv* env);
152extern int register_android_os_Debug(JNIEnv* env);
153extern int register_android_os_MessageQueue(JNIEnv* env);
154extern int register_android_os_Parcel(JNIEnv* env);
155extern int register_android_os_SELinux(JNIEnv* env);
156extern int register_android_os_SystemProperties(JNIEnv *env);
157extern int register_android_os_SystemClock(JNIEnv* env);
158extern int register_android_os_Trace(JNIEnv* env);
159extern int register_android_os_FileObserver(JNIEnv *env);
160extern int register_android_os_UEventObserver(JNIEnv* env);
161extern int register_android_os_MemoryFile(JNIEnv* env);
162extern int register_android_net_LocalSocketImpl(JNIEnv* env);
163extern int register_android_net_NetworkUtils(JNIEnv* env);
164extern int register_android_net_TrafficStats(JNIEnv* env);
165extern int register_android_text_AndroidCharacter(JNIEnv *env);
166extern int register_android_text_StaticLayout(JNIEnv *env);
167extern int register_android_text_AndroidBidi(JNIEnv *env);
168extern int register_android_opengl_classes(JNIEnv *env);
169extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
170extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
171extern int register_android_backup_BackupDataInput(JNIEnv *env);
172extern int register_android_backup_BackupDataOutput(JNIEnv *env);
173extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
174extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
175extern int register_android_app_backup_FullBackup(JNIEnv *env);
176extern int register_android_app_ActivityThread(JNIEnv *env);
177extern int register_android_app_NativeActivity(JNIEnv *env);
178extern int register_android_media_RemoteDisplay(JNIEnv *env);
179extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
180extern int register_android_view_InputChannel(JNIEnv* env);
181extern int register_android_view_InputDevice(JNIEnv* env);
182extern int register_android_view_InputEventReceiver(JNIEnv* env);
183extern int register_android_view_InputEventSender(JNIEnv* env);
184extern int register_android_view_InputQueue(JNIEnv* env);
185extern int register_android_view_KeyCharacterMap(JNIEnv *env);
186extern int register_android_view_KeyEvent(JNIEnv* env);
187extern int register_android_view_MotionEvent(JNIEnv* env);
188extern int register_android_view_PointerIcon(JNIEnv* env);
189extern int register_android_view_VelocityTracker(JNIEnv* env);
190extern int register_android_content_res_ObbScanner(JNIEnv* env);
191extern int register_android_content_res_Configuration(JNIEnv* env);
192extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
193extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
194extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
195extern int register_com_android_internal_os_Zygote(JNIEnv *env);
196extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
197
198static AndroidRuntime* gCurRuntime = NULL;
199
200/*
201 * Code written in the Java Programming Language calls here from main().
202 */
203static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
204{
205    gCurRuntime->onStarted();
206}
207
208static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
209{
210    gCurRuntime->onZygoteInit();
211}
212
213static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
214        jobject clazz, jboolean exitWithoutCleanup)
215{
216    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
217}
218
219/*
220 * JNI registration.
221 */
222static const JNINativeMethod gMethods[] = {
223    { "nativeFinishInit", "()V",
224        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
225    { "nativeZygoteInit", "()V",
226        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
227    { "nativeSetExitWithoutCleanup", "(Z)V",
228        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
229};
230
231int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
232{
233    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
234        gMethods, NELEM(gMethods));
235}
236
237// ----------------------------------------------------------------------
238
239/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
240
241AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
242        mExitWithoutCleanup(false),
243        mArgBlockStart(argBlockStart),
244        mArgBlockLength(argBlockLength)
245{
246    SkGraphics::Init();
247    // There is also a global font cache, but its budget is specified by
248    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
249
250    // Pre-allocate enough space to hold a fair number of options.
251    mOptions.setCapacity(20);
252
253    assert(gCurRuntime == NULL);        // one per process
254    gCurRuntime = this;
255}
256
257AndroidRuntime::~AndroidRuntime()
258{
259    SkGraphics::Term();
260}
261
262/*
263 * Register native methods using JNI.
264 */
265/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
266    const char* className, const JNINativeMethod* gMethods, int numMethods)
267{
268    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
269}
270
271void AndroidRuntime::setArgv0(const char* argv0) {
272    memset(mArgBlockStart, 0, mArgBlockLength);
273    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
274}
275
276status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
277    const Vector<String8>& args)
278{
279    JNIEnv* env;
280    jmethodID methodId;
281
282    ALOGD("Calling main entry %s", className.string());
283
284    env = getJNIEnv();
285    if (clazz == NULL || env == NULL) {
286        return UNKNOWN_ERROR;
287    }
288
289    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
290    if (methodId == NULL) {
291        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
292        return UNKNOWN_ERROR;
293    }
294
295    /*
296     * We want to call main() with a String array with our arguments in it.
297     * Create an array and populate it.
298     */
299    jclass stringClass;
300    jobjectArray strArray;
301
302    const size_t numArgs = args.size();
303    stringClass = env->FindClass("java/lang/String");
304    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
305
306    for (size_t i = 0; i < numArgs; i++) {
307        jstring argStr = env->NewStringUTF(args[i].string());
308        env->SetObjectArrayElement(strArray, i, argStr);
309    }
310
311    env->CallStaticVoidMethod(clazz, methodId, strArray);
312    return NO_ERROR;
313}
314
315/*
316 * The VM calls this through the "exit" hook.
317 */
318static void runtime_exit(int code)
319{
320    gCurRuntime->exit(code);
321}
322
323/*
324 * The VM calls this through the "vfprintf" hook.
325 *
326 * We ignore "fp" and just write the results to the log file.
327 */
328static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
329{
330    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
331}
332
333/**
334 * The VM calls this when mutex contention debugging is enabled to
335 * determine whether or not the blocked thread was a "sensitive thread"
336 * for user responsiveness/smoothess.
337 *
338 * Our policy for this is whether or not we're tracing any StrictMode
339 * events on this thread (which we might've inherited via Binder calls
340 * into us)
341 */
342static bool runtime_isSensitiveThread() {
343    IPCThreadState* state = IPCThreadState::selfOrNull();
344    return state && state->getStrictModePolicy() != 0;
345}
346
347static int hasDir(const char* dir)
348{
349    struct stat s;
350    int res = stat(dir, &s);
351    if (res == 0) {
352        return S_ISDIR(s.st_mode);
353    }
354    return 0;
355}
356
357static bool hasFile(const char* file) {
358    struct stat s;
359    int res = stat(file, &s);
360    if (res == 0) {
361        return S_ISREG(s.st_mode);
362    }
363    return false;
364}
365
366// Convenience wrapper over the property API that returns an
367// std::string.
368std::string getProperty(const char* key, const char* defaultValue) {
369    std::vector<char> temp(PROPERTY_VALUE_MAX);
370    const int len = property_get(key, &temp[0], defaultValue);
371    if (len < 0) {
372        return "";
373    }
374    return std::string(&temp[0], len);
375}
376
377/*
378 * Read the persistent locale. Inspects the following system properties
379 * (in order) and returns the first non-empty property in the list :
380 *
381 * (1) persist.sys.locale
382 * (2) persist.sys.language/country/localevar (country and localevar are
383 * inspected iff. language is non-empty.
384 * (3) ro.product.locale
385 * (4) ro.product.locale.language/region
386 *
387 * Note that we need to inspect persist.sys.language/country/localevar to
388 * preserve language settings for devices that are upgrading from Lollipop
389 * to M. The same goes for ro.product.locale.language/region as well.
390 */
391const std::string readLocale()
392{
393    const std::string locale = getProperty("persist.sys.locale", "");
394    if (!locale.empty()) {
395        return locale;
396    }
397
398    const std::string language = getProperty("persist.sys.language", "");
399    if (!language.empty()) {
400        const std::string country = getProperty("persist.sys.country", "");
401        const std::string variant = getProperty("persist.sys.localevar", "");
402
403        std::string out = language;
404        if (!country.empty()) {
405            out = out + "-" + country;
406        }
407
408        if (!variant.empty()) {
409            out = out + "-" + variant;
410        }
411
412        return out;
413    }
414
415    const std::string productLocale = getProperty("ro.product.locale", "");
416    if (!productLocale.empty()) {
417        return productLocale;
418    }
419
420    // If persist.sys.locale and ro.product.locale are missing,
421    // construct a locale value from the individual locale components.
422    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
423    const std::string productRegion = getProperty("ro.product.locale.region", "US");
424
425    return productLanguage + "-" + productRegion;
426}
427
428void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
429{
430    JavaVMOption opt;
431    opt.optionString = optionString;
432    opt.extraInfo = extraInfo;
433    mOptions.add(opt);
434}
435
436/*
437 * Parse a property containing space-separated options that should be
438 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
439 *
440 * This will cut up "extraOptsBuf" as we chop it into individual options.
441 *
442 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
443 *
444 * Adds the strings, if any, to mOptions.
445 */
446void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
447{
448    char* start = extraOptsBuf;
449    char* end = NULL;
450    while (*start != '\0') {
451        while (*start == ' ')                   /* skip leading whitespace */
452            start++;
453        if (*start == '\0')                     /* was trailing ws, bail */
454            break;
455
456        end = start+1;
457        while (*end != ' ' && *end != '\0')     /* find end of token */
458            end++;
459        if (*end == ' ')
460            *end++ = '\0';          /* mark end, advance to indicate more */
461
462        if (quotingArg != NULL) {
463            addOption(quotingArg);
464        }
465        addOption(start);
466        start = end;
467    }
468}
469
470/*
471 * Reads a "property" into "buffer" with a default of "defaultArg". If
472 * the property is non-empty, it is treated as a runtime option such
473 * as "-Xmx32m".
474 *
475 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
476 *
477 * If an argument is found, it is added to mOptions.
478 *
479 * If an option is found, it is added to mOptions and true is
480 * returned. Otherwise false is returned.
481 */
482bool AndroidRuntime::parseRuntimeOption(const char* property,
483                                        char* buffer,
484                                        const char* runtimeArg,
485                                        const char* defaultArg)
486{
487    strcpy(buffer, runtimeArg);
488    size_t runtimeArgLen = strlen(runtimeArg);
489    property_get(property, buffer+runtimeArgLen, defaultArg);
490    if (buffer[runtimeArgLen] == '\0') {
491        return false;
492    }
493    addOption(buffer);
494    return true;
495}
496
497/*
498 * Reads a "property" into "buffer". If the property is non-empty, it
499 * is treated as a dex2oat compiler option that should be
500 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
501 *
502 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
503 *
504 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
505 *
506 * If an option is found, it is added to mOptions and true is
507 * returned. Otherwise false is returned.
508 */
509bool AndroidRuntime::parseCompilerOption(const char* property,
510                                         char* buffer,
511                                         const char* compilerArg,
512                                         const char* quotingArg)
513{
514    strcpy(buffer, compilerArg);
515    size_t compilerArgLen = strlen(compilerArg);
516    property_get(property, buffer+compilerArgLen, "");
517    if (buffer[compilerArgLen] == '\0') {
518        return false;
519    }
520    addOption(quotingArg);
521    addOption(buffer);
522    return true;
523}
524
525/*
526 * Reads a "property" into "buffer". If the property is non-empty, it
527 * is treated as a dex2oat compiler runtime option that should be
528 * passed as a quoted option, e.g. "-Ximage-compiler-option
529 * --runtime-arg -Ximage-compiler-option -Xmx32m".
530 *
531 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
532 *
533 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
534 *
535 * If an option is found, it is added to mOptions and true is
536 * returned. Otherwise false is returned.
537 */
538bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
539                                                char* buffer,
540                                                const char* runtimeArg,
541                                                const char* quotingArg)
542{
543    strcpy(buffer, runtimeArg);
544    size_t runtimeArgLen = strlen(runtimeArg);
545    property_get(property, buffer+runtimeArgLen, "");
546    if (buffer[runtimeArgLen] == '\0') {
547        return false;
548    }
549    addOption(quotingArg);
550    addOption("--runtime-arg");
551    addOption(quotingArg);
552    addOption(buffer);
553    return true;
554}
555
556/*
557 * Start the Dalvik Virtual Machine.
558 *
559 * Various arguments, most determined by system properties, are passed in.
560 * The "mOptions" vector is updated.
561 *
562 * CAUTION: when adding options in here, be careful not to put the
563 * char buffer inside a nested scope.  Adding the buffer to the
564 * options using mOptions.add() does not copy the buffer, so if the
565 * buffer goes out of scope the option may be overwritten.  It's best
566 * to put the buffer at the top of the function so that it is more
567 * unlikely that someone will surround it in a scope at a later time
568 * and thus introduce a bug.
569 *
570 * Returns 0 on success.
571 */
572int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
573{
574    JavaVMInitArgs initArgs;
575    char propBuf[PROPERTY_VALUE_MAX];
576    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
577    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
578    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
579    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
580    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
581    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
582    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
583    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
584    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
585    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
586    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
587    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
588    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
589    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
590    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
591    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
592    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
593    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
594    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
595    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
596    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
597    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
598    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
599    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
600    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
601    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
602    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
603    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
604    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
605    char extraOptsBuf[PROPERTY_VALUE_MAX];
606    char voldDecryptBuf[PROPERTY_VALUE_MAX];
607    enum {
608      kEMDefault,
609      kEMIntPortable,
610      kEMIntFast,
611      kEMJitCompiler,
612    } executionMode = kEMDefault;
613    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
614    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
615    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
616    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
617    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
618    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
619    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
620
621    bool checkJni = false;
622    property_get("dalvik.vm.checkjni", propBuf, "");
623    if (strcmp(propBuf, "true") == 0) {
624        checkJni = true;
625    } else if (strcmp(propBuf, "false") != 0) {
626        /* property is neither true nor false; fall back on kernel parameter */
627        property_get("ro.kernel.android.checkjni", propBuf, "");
628        if (propBuf[0] == '1') {
629            checkJni = true;
630        }
631    }
632    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
633    if (checkJni) {
634        /* extended JNI checking */
635        addOption("-Xcheck:jni");
636
637        /* with -Xcheck:jni, this provides a JNI function call trace */
638        //addOption("-verbose:jni");
639    }
640
641    property_get("dalvik.vm.execution-mode", propBuf, "");
642    if (strcmp(propBuf, "int:portable") == 0) {
643        executionMode = kEMIntPortable;
644    } else if (strcmp(propBuf, "int:fast") == 0) {
645        executionMode = kEMIntFast;
646    } else if (strcmp(propBuf, "int:jit") == 0) {
647        executionMode = kEMJitCompiler;
648    }
649
650    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
651
652    strcpy(jniOptsBuf, "-Xjniopts:");
653    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
654        ALOGI("JNI options: '%s'\n", jniOptsBuf);
655    }
656
657    /* route exit() to our handler */
658    addOption("exit", (void*) runtime_exit);
659
660    /* route fprintf() to our handler */
661    addOption("vfprintf", (void*) runtime_vfprintf);
662
663    /* register the framework-specific "is sensitive thread" hook */
664    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
665
666    /* enable verbose; standard options are { jni, gc, class } */
667    //addOption("-verbose:jni");
668    addOption("-verbose:gc");
669    //addOption("-verbose:class");
670
671    /*
672     * The default starting and maximum size of the heap.  Larger
673     * values should be specified in a product property override.
674     */
675    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
676    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
677
678    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
679    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
680    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
681    parseRuntimeOption("dalvik.vm.heaptargetutilization",
682                       heaptargetutilizationOptsBuf,
683                       "-XX:HeapTargetUtilization=");
684
685    /*
686     * JIT related options.
687     */
688    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
689    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
690    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
691    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
692
693    property_get("ro.config.low_ram", propBuf, "");
694    if (strcmp(propBuf, "true") == 0) {
695      addOption("-XX:LowMemoryMode");
696    }
697
698    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
699    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
700
701    /*
702     * Enable debugging only for apps forked from zygote.
703     * Set suspend=y to pause during VM init and use android ADB transport.
704     */
705    if (zygote) {
706      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
707    }
708
709    parseRuntimeOption("dalvik.vm.lockprof.threshold",
710                       lockProfThresholdBuf,
711                       "-Xlockprofthreshold:");
712
713    if (executionMode == kEMIntPortable) {
714        addOption("-Xint:portable");
715    } else if (executionMode == kEMIntFast) {
716        addOption("-Xint:fast");
717    } else if (executionMode == kEMJitCompiler) {
718        addOption("-Xint:jit");
719    }
720
721    // If we are booting without the real /data, don't spend time compiling.
722    property_get("vold.decrypt", voldDecryptBuf, "");
723    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
724                             (strcmp(voldDecryptBuf, "1") == 0));
725
726    // Extra options for boot.art/boot.oat image generation.
727    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
728                               "-Xms", "-Ximage-compiler-option");
729    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
730                               "-Xmx", "-Ximage-compiler-option");
731    if (skip_compilation) {
732        addOption("-Ximage-compiler-option");
733        addOption("--compiler-filter=verify-none");
734    } else {
735        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
736                            "--compiler-filter=", "-Ximage-compiler-option");
737    }
738
739    // Make sure there is a preloaded-classes file.
740    if (!hasFile("/system/etc/preloaded-classes")) {
741        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
742              strerror(errno));
743        return -1;
744    }
745    addOption("-Ximage-compiler-option");
746    addOption("--image-classes=/system/etc/preloaded-classes");
747
748    // If there is a compiled-classes file, push it.
749    if (hasFile("/system/etc/compiled-classes")) {
750        addOption("-Ximage-compiler-option");
751        addOption("--compiled-classes=/system/etc/compiled-classes");
752    }
753
754    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
755    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
756
757    // Extra options for DexClassLoader.
758    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
759                               "-Xms", "-Xcompiler-option");
760    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
761                               "-Xmx", "-Xcompiler-option");
762    if (skip_compilation) {
763        addOption("-Xcompiler-option");
764        addOption("--compiler-filter=verify-none");
765
766        // We skip compilation when a minimal runtime is brought up for decryption. In that case
767        // /data is temporarily backed by a tmpfs, which is usually small.
768        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
769        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
770        // directly instead.
771        addOption("--runtime-arg");
772        addOption("-Xnorelocate");
773    } else {
774        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
775                            "--compiler-filter=", "-Xcompiler-option");
776    }
777    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
778    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
779                        "-Ximage-compiler-option");
780
781    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
782    // pass the instruction-set-features/variant as an image-compiler-option.
783    // TODO: Find a better way for the instruction-set.
784#if defined(__arm__)
785    constexpr const char* instruction_set = "arm";
786#elif defined(__aarch64__)
787    constexpr const char* instruction_set = "arm64";
788#elif defined(__mips__) && !defined(__LP64__)
789    constexpr const char* instruction_set = "mips";
790#elif defined(__mips__) && defined(__LP64__)
791    constexpr const char* instruction_set = "mips64";
792#elif defined(__i386__)
793    constexpr const char* instruction_set = "x86";
794#elif defined(__x86_64__)
795    constexpr const char* instruction_set = "x86_64";
796#else
797    constexpr const char* instruction_set = "unknown";
798#endif
799    // Note: it is OK to reuse the buffer, as the values are exactly the same between
800    //       * compiler-option, used for runtime compilation (DexClassLoader)
801    //       * image-compiler-option, used for boot-image compilation on device
802
803    // Copy the variant.
804    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
805    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
806                        "--instruction-set-variant=", "-Ximage-compiler-option");
807    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
808                        "--instruction-set-variant=", "-Xcompiler-option");
809    // Copy the features.
810    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
811    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
812                        "--instruction-set-features=", "-Ximage-compiler-option");
813    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
814                        "--instruction-set-features=", "-Xcompiler-option");
815
816
817    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
818    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
819
820    /* extra options; parse this late so it overrides others */
821    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
822    parseExtraOpts(extraOptsBuf, NULL);
823
824    /* Set the properties for locale */
825    {
826        strcpy(localeOption, "-Duser.locale=");
827        const std::string locale = readLocale();
828        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
829        addOption(localeOption);
830    }
831
832    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
833    property_get("ro.debuggable", propBuf, "0");
834    if (strcmp(propBuf, "1") == 0) {
835        property_get("dalvik.vm.method-trace", propBuf, "false");
836        if (strcmp(propBuf, "true") == 0) {
837            addOption("-Xmethod-trace");
838            parseRuntimeOption("dalvik.vm.method-trace-file",
839                               methodTraceFileBuf,
840                               "-Xmethod-trace-file:");
841            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
842                               methodTraceFileSizeBuf,
843                               "-Xmethod-trace-file-size:");
844            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
845            if (strcmp(propBuf, "true") == 0) {
846                addOption("-Xmethod-trace-stream");
847            }
848        }
849    }
850
851    // Native bridge library. "0" means that native bridge is disabled.
852    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
853    if (propBuf[0] == '\0') {
854        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
855    } else if (strcmp(propBuf, "0") != 0) {
856        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
857                 "-XX:NativeBridge=%s", propBuf);
858        addOption(nativeBridgeLibrary);
859    }
860
861#if defined(__LP64__)
862    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
863#else
864    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
865#endif  // defined(__LP64__)
866    property_get(cpu_abilist_property_name, propBuf, "");
867    if (propBuf[0] == '\0') {
868        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
869        return -1;
870    }
871    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
872    addOption(cpuAbiListBuf);
873
874    // Dalvik-cache pruning counter.
875    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
876                       "-Xzygote-max-boot-retry=");
877
878    /*
879     * When running with debug.generate-debug-info, add --generate-debug-info to
880     * the compiler options so that the boot image, if it is compiled on device,
881     * will include native debugging information.
882     */
883    property_get("debug.generate-debug-info", propBuf, "");
884    if (strcmp(propBuf, "true") == 0) {
885        addOption("-Xcompiler-option");
886        addOption("--generate-debug-info");
887        addOption("-Ximage-compiler-option");
888        addOption("--generate-debug-info");
889    }
890
891    /*
892     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
893     * contain the fingerprint and can be parsed.
894     */
895    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
896
897    initArgs.version = JNI_VERSION_1_4;
898    initArgs.options = mOptions.editArray();
899    initArgs.nOptions = mOptions.size();
900    initArgs.ignoreUnrecognized = JNI_FALSE;
901
902    /*
903     * Initialize the VM.
904     *
905     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
906     * If this call succeeds, the VM is ready, and we can start issuing
907     * JNI calls.
908     */
909    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
910        ALOGE("JNI_CreateJavaVM failed\n");
911        return -1;
912    }
913
914    return 0;
915}
916
917char* AndroidRuntime::toSlashClassName(const char* className)
918{
919    char* result = strdup(className);
920    for (char* cp = result; *cp != '\0'; cp++) {
921        if (*cp == '.') {
922            *cp = '/';
923        }
924    }
925    return result;
926}
927
928/** Create a Java string from an ASCII or Latin-1 string */
929jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
930    if (!bytes) return NULL;
931    int length = strlen(bytes);
932    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
933    if (!buffer) return NULL;
934    jchar* chp = buffer;
935    for (int i = 0; i < length; i++) {
936        *chp++ = *bytes++;
937    }
938    return env->NewString(buffer, length);
939}
940
941
942/*
943 * Start the Android runtime.  This involves starting the virtual machine
944 * and calling the "static void main(String[] args)" method in the class
945 * named by "className".
946 *
947 * Passes the main function two arguments, the class name and the specified
948 * options string.
949 */
950void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
951{
952    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
953            className != NULL ? className : "(unknown)", getuid());
954
955    static const String8 startSystemServer("start-system-server");
956
957    /*
958     * 'startSystemServer == true' means runtime is obsolete and not run from
959     * init.rc anymore, so we print out the boot start event here.
960     */
961    for (size_t i = 0; i < options.size(); ++i) {
962        if (options[i] == startSystemServer) {
963           /* track our progress through the boot sequence */
964           const int LOG_BOOT_PROGRESS_START = 3000;
965           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
966        }
967    }
968
969    const char* rootDir = getenv("ANDROID_ROOT");
970    if (rootDir == NULL) {
971        rootDir = "/system";
972        if (!hasDir("/system")) {
973            LOG_FATAL("No root directory specified, and /android does not exist.");
974            return;
975        }
976        setenv("ANDROID_ROOT", rootDir, 1);
977    }
978
979    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
980    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
981
982    /* start the virtual machine */
983    JniInvocation jni_invocation;
984    jni_invocation.Init(NULL);
985    JNIEnv* env;
986    if (startVm(&mJavaVM, &env, zygote) != 0) {
987        return;
988    }
989    onVmCreated(env);
990
991    /*
992     * Register android functions.
993     */
994    if (startReg(env) < 0) {
995        ALOGE("Unable to register all android natives\n");
996        return;
997    }
998
999    /*
1000     * We want to call main() with a String array with arguments in it.
1001     * At present we have two arguments, the class name and an option string.
1002     * Create an array to hold them.
1003     */
1004    jclass stringClass;
1005    jobjectArray strArray;
1006    jstring classNameStr;
1007
1008    stringClass = env->FindClass("java/lang/String");
1009    assert(stringClass != NULL);
1010    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1011    assert(strArray != NULL);
1012    classNameStr = env->NewStringUTF(className);
1013    assert(classNameStr != NULL);
1014    env->SetObjectArrayElement(strArray, 0, classNameStr);
1015
1016    for (size_t i = 0; i < options.size(); ++i) {
1017        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1018        assert(optionsStr != NULL);
1019        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1020    }
1021
1022    /*
1023     * Start VM.  This thread becomes the main thread of the VM, and will
1024     * not return until the VM exits.
1025     */
1026    char* slashClassName = toSlashClassName(className);
1027    jclass startClass = env->FindClass(slashClassName);
1028    if (startClass == NULL) {
1029        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1030        /* keep going */
1031    } else {
1032        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1033            "([Ljava/lang/String;)V");
1034        if (startMeth == NULL) {
1035            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1036            /* keep going */
1037        } else {
1038            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1039
1040#if 0
1041            if (env->ExceptionCheck())
1042                threadExitUncaughtException(env);
1043#endif
1044        }
1045    }
1046    free(slashClassName);
1047
1048    ALOGD("Shutting down VM\n");
1049    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1050        ALOGW("Warning: unable to detach main thread\n");
1051    if (mJavaVM->DestroyJavaVM() != 0)
1052        ALOGW("Warning: VM did not shut down cleanly\n");
1053}
1054
1055void AndroidRuntime::exit(int code)
1056{
1057    if (mExitWithoutCleanup) {
1058        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1059        ::_exit(code);
1060    } else {
1061        ALOGI("VM exiting with result code %d.", code);
1062        onExit(code);
1063        ::exit(code);
1064    }
1065}
1066
1067void AndroidRuntime::onVmCreated(JNIEnv* env)
1068{
1069    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1070}
1071
1072/*
1073 * Get the JNIEnv pointer for this thread.
1074 *
1075 * Returns NULL if the slot wasn't allocated or populated.
1076 */
1077/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1078{
1079    JNIEnv* env;
1080    JavaVM* vm = AndroidRuntime::getJavaVM();
1081    assert(vm != NULL);
1082
1083    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1084        return NULL;
1085    return env;
1086}
1087
1088/*
1089 * Makes the current thread visible to the VM.
1090 *
1091 * The JNIEnv pointer returned is only valid for the current thread, and
1092 * thus must be tucked into thread-local storage.
1093 */
1094static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1095{
1096    JavaVMAttachArgs args;
1097    JavaVM* vm;
1098    jint result;
1099
1100    vm = AndroidRuntime::getJavaVM();
1101    assert(vm != NULL);
1102
1103    args.version = JNI_VERSION_1_4;
1104    args.name = (char*) threadName;
1105    args.group = NULL;
1106
1107    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1108    if (result != JNI_OK)
1109        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1110
1111    return result;
1112}
1113
1114/*
1115 * Detach the current thread from the set visible to the VM.
1116 */
1117static int javaDetachThread(void)
1118{
1119    JavaVM* vm;
1120    jint result;
1121
1122    vm = AndroidRuntime::getJavaVM();
1123    assert(vm != NULL);
1124
1125    result = vm->DetachCurrentThread();
1126    if (result != JNI_OK)
1127        ALOGE("ERROR: thread detach failed\n");
1128    return result;
1129}
1130
1131/*
1132 * When starting a native thread that will be visible from the VM, we
1133 * bounce through this to get the right attach/detach action.
1134 * Note that this function calls free(args)
1135 */
1136/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1137    void* start = ((void**)args)[0];
1138    void* userData = ((void **)args)[1];
1139    char* name = (char*) ((void **)args)[2];        // we own this storage
1140    free(args);
1141    JNIEnv* env;
1142    int result;
1143
1144    /* hook us into the VM */
1145    if (javaAttachThread(name, &env) != JNI_OK)
1146        return -1;
1147
1148    /* start the thread running */
1149    result = (*(android_thread_func_t)start)(userData);
1150
1151    /* unhook us */
1152    javaDetachThread();
1153    free(name);
1154
1155    return result;
1156}
1157
1158/*
1159 * This is invoked from androidCreateThreadEtc() via the callback
1160 * set with androidSetCreateThreadFunc().
1161 *
1162 * We need to create the new thread in such a way that it gets hooked
1163 * into the VM before it really starts executing.
1164 */
1165/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1166                                android_thread_func_t entryFunction,
1167                                void* userData,
1168                                const char* threadName,
1169                                int32_t threadPriority,
1170                                size_t threadStackSize,
1171                                android_thread_id_t* threadId)
1172{
1173    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1174    int result;
1175
1176    if (!threadName)
1177        threadName = "unnamed thread";
1178
1179    args[0] = (void*) entryFunction;
1180    args[1] = userData;
1181    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1182
1183    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1184        threadName, threadPriority, threadStackSize, threadId);
1185    return result;
1186}
1187
1188/*
1189 * Create a thread that is visible from the VM.
1190 *
1191 * This is called from elsewhere in the library.
1192 */
1193/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1194    void (*start)(void *), void* arg)
1195{
1196    android_thread_id_t threadId = 0;
1197    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1198        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1199    return threadId;
1200}
1201
1202#if 0
1203static void quickTest(void* arg)
1204{
1205    const char* str = (const char*) arg;
1206
1207    printf("In quickTest: %s\n", str);
1208}
1209#endif
1210
1211#ifdef NDEBUG
1212    #define REG_JNI(name)      { name }
1213    struct RegJNIRec {
1214        int (*mProc)(JNIEnv*);
1215    };
1216#else
1217    #define REG_JNI(name)      { name, #name }
1218    struct RegJNIRec {
1219        int (*mProc)(JNIEnv*);
1220        const char* mName;
1221    };
1222#endif
1223
1224typedef void (*RegJAMProc)();
1225
1226static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1227{
1228    for (size_t i = 0; i < count; i++) {
1229        if (array[i].mProc(env) < 0) {
1230#ifndef NDEBUG
1231            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1232#endif
1233            return -1;
1234        }
1235    }
1236    return 0;
1237}
1238
1239static const RegJNIRec gRegJNI[] = {
1240    REG_JNI(register_com_android_internal_os_RuntimeInit),
1241    REG_JNI(register_android_os_SystemClock),
1242    REG_JNI(register_android_util_EventLog),
1243    REG_JNI(register_android_util_Log),
1244    REG_JNI(register_android_content_AssetManager),
1245    REG_JNI(register_android_content_StringBlock),
1246    REG_JNI(register_android_content_XmlBlock),
1247    REG_JNI(register_android_emoji_EmojiFactory),
1248    REG_JNI(register_android_text_AndroidCharacter),
1249    REG_JNI(register_android_text_StaticLayout),
1250    REG_JNI(register_android_text_AndroidBidi),
1251    REG_JNI(register_android_view_InputDevice),
1252    REG_JNI(register_android_view_KeyCharacterMap),
1253    REG_JNI(register_android_os_Process),
1254    REG_JNI(register_android_os_SystemProperties),
1255    REG_JNI(register_android_os_Binder),
1256    REG_JNI(register_android_os_Parcel),
1257    REG_JNI(register_android_nio_utils),
1258    REG_JNI(register_android_graphics_Graphics),
1259    REG_JNI(register_android_view_DisplayEventReceiver),
1260    REG_JNI(register_android_view_RenderNode),
1261    REG_JNI(register_android_view_RenderNodeAnimator),
1262    REG_JNI(register_android_view_GraphicBuffer),
1263    REG_JNI(register_android_view_DisplayListCanvas),
1264    REG_JNI(register_android_view_HardwareLayer),
1265    REG_JNI(register_android_view_ThreadedRenderer),
1266    REG_JNI(register_android_view_Surface),
1267    REG_JNI(register_android_view_SurfaceControl),
1268    REG_JNI(register_android_view_SurfaceSession),
1269    REG_JNI(register_android_view_TextureView),
1270    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1271    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1272    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1273    REG_JNI(register_android_opengl_jni_EGL14),
1274    REG_JNI(register_android_opengl_jni_EGLExt),
1275    REG_JNI(register_android_opengl_jni_GLES10),
1276    REG_JNI(register_android_opengl_jni_GLES10Ext),
1277    REG_JNI(register_android_opengl_jni_GLES11),
1278    REG_JNI(register_android_opengl_jni_GLES11Ext),
1279    REG_JNI(register_android_opengl_jni_GLES20),
1280    REG_JNI(register_android_opengl_jni_GLES30),
1281    REG_JNI(register_android_opengl_jni_GLES31),
1282    REG_JNI(register_android_opengl_jni_GLES31Ext),
1283
1284    REG_JNI(register_android_graphics_Bitmap),
1285    REG_JNI(register_android_graphics_BitmapFactory),
1286    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1287    REG_JNI(register_android_graphics_Camera),
1288    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1289    REG_JNI(register_android_graphics_Canvas),
1290    REG_JNI(register_android_graphics_CanvasProperty),
1291    REG_JNI(register_android_graphics_ColorFilter),
1292    REG_JNI(register_android_graphics_DrawFilter),
1293    REG_JNI(register_android_graphics_FontFamily),
1294    REG_JNI(register_android_graphics_Interpolator),
1295    REG_JNI(register_android_graphics_LayerRasterizer),
1296    REG_JNI(register_android_graphics_MaskFilter),
1297    REG_JNI(register_android_graphics_Matrix),
1298    REG_JNI(register_android_graphics_Movie),
1299    REG_JNI(register_android_graphics_NinePatch),
1300    REG_JNI(register_android_graphics_Paint),
1301    REG_JNI(register_android_graphics_Path),
1302    REG_JNI(register_android_graphics_PathMeasure),
1303    REG_JNI(register_android_graphics_PathEffect),
1304    REG_JNI(register_android_graphics_Picture),
1305    REG_JNI(register_android_graphics_PorterDuff),
1306    REG_JNI(register_android_graphics_Rasterizer),
1307    REG_JNI(register_android_graphics_Region),
1308    REG_JNI(register_android_graphics_Shader),
1309    REG_JNI(register_android_graphics_SurfaceTexture),
1310    REG_JNI(register_android_graphics_Typeface),
1311    REG_JNI(register_android_graphics_Xfermode),
1312    REG_JNI(register_android_graphics_YuvImage),
1313    REG_JNI(register_android_graphics_pdf_PdfDocument),
1314    REG_JNI(register_android_graphics_pdf_PdfEditor),
1315    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1316
1317    REG_JNI(register_android_database_CursorWindow),
1318    REG_JNI(register_android_database_SQLiteConnection),
1319    REG_JNI(register_android_database_SQLiteGlobal),
1320    REG_JNI(register_android_database_SQLiteDebug),
1321    REG_JNI(register_android_os_Debug),
1322    REG_JNI(register_android_os_FileObserver),
1323    REG_JNI(register_android_os_MessageQueue),
1324    REG_JNI(register_android_os_SELinux),
1325    REG_JNI(register_android_os_Trace),
1326    REG_JNI(register_android_os_UEventObserver),
1327    REG_JNI(register_android_net_LocalSocketImpl),
1328    REG_JNI(register_android_net_NetworkUtils),
1329    REG_JNI(register_android_net_TrafficStats),
1330    REG_JNI(register_android_os_MemoryFile),
1331    REG_JNI(register_com_android_internal_os_Zygote),
1332    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1333    REG_JNI(register_android_hardware_Camera),
1334    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1335    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1336    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1337    REG_JNI(register_android_hardware_camera2_DngCreator),
1338    REG_JNI(register_android_hardware_Radio),
1339    REG_JNI(register_android_hardware_SensorManager),
1340    REG_JNI(register_android_hardware_SerialPort),
1341    REG_JNI(register_android_hardware_SoundTrigger),
1342    REG_JNI(register_android_hardware_UsbDevice),
1343    REG_JNI(register_android_hardware_UsbDeviceConnection),
1344    REG_JNI(register_android_hardware_UsbRequest),
1345    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1346    REG_JNI(register_android_media_AudioRecord),
1347    REG_JNI(register_android_media_AudioSystem),
1348    REG_JNI(register_android_media_AudioTrack),
1349    REG_JNI(register_android_media_JetPlayer),
1350    REG_JNI(register_android_media_RemoteDisplay),
1351    REG_JNI(register_android_media_ToneGenerator),
1352
1353    REG_JNI(register_android_opengl_classes),
1354    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1355    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1356    REG_JNI(register_android_backup_BackupDataInput),
1357    REG_JNI(register_android_backup_BackupDataOutput),
1358    REG_JNI(register_android_backup_FileBackupHelperBase),
1359    REG_JNI(register_android_backup_BackupHelperDispatcher),
1360    REG_JNI(register_android_app_backup_FullBackup),
1361    REG_JNI(register_android_app_ActivityThread),
1362    REG_JNI(register_android_app_NativeActivity),
1363    REG_JNI(register_android_util_jar_StrictJarFile),
1364    REG_JNI(register_android_view_InputChannel),
1365    REG_JNI(register_android_view_InputEventReceiver),
1366    REG_JNI(register_android_view_InputEventSender),
1367    REG_JNI(register_android_view_InputQueue),
1368    REG_JNI(register_android_view_KeyEvent),
1369    REG_JNI(register_android_view_MotionEvent),
1370    REG_JNI(register_android_view_PointerIcon),
1371    REG_JNI(register_android_view_VelocityTracker),
1372
1373    REG_JNI(register_android_content_res_ObbScanner),
1374    REG_JNI(register_android_content_res_Configuration),
1375
1376    REG_JNI(register_android_animation_PropertyValuesHolder),
1377    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1378    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1379
1380
1381};
1382
1383/*
1384 * Register android native functions with the VM.
1385 */
1386/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1387{
1388    ATRACE_NAME("RegisterAndroidNatives");
1389    /*
1390     * This hook causes all future threads created in this process to be
1391     * attached to the JavaVM.  (This needs to go away in favor of JNI
1392     * Attach calls.)
1393     */
1394    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1395
1396    ALOGV("--- registering native functions ---\n");
1397
1398    /*
1399     * Every "register" function calls one or more things that return
1400     * a local reference (e.g. FindClass).  Because we haven't really
1401     * started the VM yet, they're all getting stored in the base frame
1402     * and never released.  Use Push/Pop to manage the storage.
1403     */
1404    env->PushLocalFrame(200);
1405
1406    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1407        env->PopLocalFrame(NULL);
1408        return -1;
1409    }
1410    env->PopLocalFrame(NULL);
1411
1412    //createJavaThread("fubar", quickTest, (void*) "hello");
1413
1414    return 0;
1415}
1416
1417AndroidRuntime* AndroidRuntime::getRuntime()
1418{
1419    return gCurRuntime;
1420}
1421
1422/**
1423 * Used by surface flinger's DdmConnection to register native methods from
1424 * the framework.
1425 */
1426extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1427    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1428}
1429}   // namespace android
1430