AndroidRuntime.cpp revision 775873a66a946fae2b0535abb51df9817bd1b20c 
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);
199
200static AndroidRuntime* gCurRuntime = NULL;
201
202/*
203 * Code written in the Java Programming Language calls here from main().
204 */
205static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
206{
207    gCurRuntime->onStarted();
208}
209
210static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
211{
212    gCurRuntime->onZygoteInit();
213}
214
215static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
216        jobject clazz, jboolean exitWithoutCleanup)
217{
218    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
219}
220
221/*
222 * JNI registration.
223 */
224static const JNINativeMethod gMethods[] = {
225    { "nativeFinishInit", "()V",
226        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
227    { "nativeZygoteInit", "()V",
228        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
229    { "nativeSetExitWithoutCleanup", "(Z)V",
230        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
231};
232
233int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
234{
235    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
236        gMethods, NELEM(gMethods));
237}
238
239// ----------------------------------------------------------------------
240
241/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
242
243AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
244        mExitWithoutCleanup(false),
245        mArgBlockStart(argBlockStart),
246        mArgBlockLength(argBlockLength)
247{
248    SkGraphics::Init();
249    // There is also a global font cache, but its budget is specified by
250    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
251
252    // Pre-allocate enough space to hold a fair number of options.
253    mOptions.setCapacity(20);
254
255    assert(gCurRuntime == NULL);        // one per process
256    gCurRuntime = this;
257}
258
259AndroidRuntime::~AndroidRuntime()
260{
261    SkGraphics::Term();
262}
263
264/*
265 * Register native methods using JNI.
266 */
267/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
268    const char* className, const JNINativeMethod* gMethods, int numMethods)
269{
270    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
271}
272
273void AndroidRuntime::setArgv0(const char* argv0) {
274    memset(mArgBlockStart, 0, mArgBlockLength);
275    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
276}
277
278status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
279    const Vector<String8>& args)
280{
281    JNIEnv* env;
282    jmethodID methodId;
283
284    ALOGD("Calling main entry %s", className.string());
285
286    env = getJNIEnv();
287    if (clazz == NULL || env == NULL) {
288        return UNKNOWN_ERROR;
289    }
290
291    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
292    if (methodId == NULL) {
293        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
294        return UNKNOWN_ERROR;
295    }
296
297    /*
298     * We want to call main() with a String array with our arguments in it.
299     * Create an array and populate it.
300     */
301    jclass stringClass;
302    jobjectArray strArray;
303
304    const size_t numArgs = args.size();
305    stringClass = env->FindClass("java/lang/String");
306    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
307
308    for (size_t i = 0; i < numArgs; i++) {
309        jstring argStr = env->NewStringUTF(args[i].string());
310        env->SetObjectArrayElement(strArray, i, argStr);
311    }
312
313    env->CallStaticVoidMethod(clazz, methodId, strArray);
314    return NO_ERROR;
315}
316
317/*
318 * The VM calls this through the "exit" hook.
319 */
320static void runtime_exit(int code)
321{
322    gCurRuntime->exit(code);
323}
324
325/*
326 * The VM calls this through the "vfprintf" hook.
327 *
328 * We ignore "fp" and just write the results to the log file.
329 */
330static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
331{
332    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
333}
334
335/**
336 * The VM calls this when mutex contention debugging is enabled to
337 * determine whether or not the blocked thread was a "sensitive thread"
338 * for user responsiveness/smoothess.
339 *
340 * Our policy for this is whether or not we're tracing any StrictMode
341 * events on this thread (which we might've inherited via Binder calls
342 * into us)
343 */
344static bool runtime_isSensitiveThread() {
345    IPCThreadState* state = IPCThreadState::selfOrNull();
346    return state && state->getStrictModePolicy() != 0;
347}
348
349static int hasDir(const char* dir)
350{
351    struct stat s;
352    int res = stat(dir, &s);
353    if (res == 0) {
354        return S_ISDIR(s.st_mode);
355    }
356    return 0;
357}
358
359static bool hasFile(const char* file) {
360    struct stat s;
361    int res = stat(file, &s);
362    if (res == 0) {
363        return S_ISREG(s.st_mode);
364    }
365    return false;
366}
367
368// Convenience wrapper over the property API that returns an
369// std::string.
370std::string getProperty(const char* key, const char* defaultValue) {
371    std::vector<char> temp(PROPERTY_VALUE_MAX);
372    const int len = property_get(key, &temp[0], defaultValue);
373    if (len < 0) {
374        return "";
375    }
376    return std::string(&temp[0], len);
377}
378
379/*
380 * Read the persistent locale. Inspects the following system properties
381 * (in order) and returns the first non-empty property in the list :
382 *
383 * (1) persist.sys.locale
384 * (2) persist.sys.language/country/localevar (country and localevar are
385 * inspected iff. language is non-empty.
386 * (3) ro.product.locale
387 * (4) ro.product.locale.language/region
388 *
389 * Note that we need to inspect persist.sys.language/country/localevar to
390 * preserve language settings for devices that are upgrading from Lollipop
391 * to M. The same goes for ro.product.locale.language/region as well.
392 */
393const std::string readLocale()
394{
395    const std::string locale = getProperty("persist.sys.locale", "");
396    if (!locale.empty()) {
397        return locale;
398    }
399
400    const std::string language = getProperty("persist.sys.language", "");
401    if (!language.empty()) {
402        const std::string country = getProperty("persist.sys.country", "");
403        const std::string variant = getProperty("persist.sys.localevar", "");
404
405        std::string out = language;
406        if (!country.empty()) {
407            out = out + "-" + country;
408        }
409
410        if (!variant.empty()) {
411            out = out + "-" + variant;
412        }
413
414        return out;
415    }
416
417    const std::string productLocale = getProperty("ro.product.locale", "");
418    if (!productLocale.empty()) {
419        return productLocale;
420    }
421
422    // If persist.sys.locale and ro.product.locale are missing,
423    // construct a locale value from the individual locale components.
424    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
425    const std::string productRegion = getProperty("ro.product.locale.region", "US");
426
427    return productLanguage + "-" + productRegion;
428}
429
430void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
431{
432    JavaVMOption opt;
433    opt.optionString = optionString;
434    opt.extraInfo = extraInfo;
435    mOptions.add(opt);
436}
437
438/*
439 * Parse a property containing space-separated options that should be
440 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
441 *
442 * This will cut up "extraOptsBuf" as we chop it into individual options.
443 *
444 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
445 *
446 * Adds the strings, if any, to mOptions.
447 */
448void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
449{
450    char* start = extraOptsBuf;
451    char* end = NULL;
452    while (*start != '\0') {
453        while (*start == ' ')                   /* skip leading whitespace */
454            start++;
455        if (*start == '\0')                     /* was trailing ws, bail */
456            break;
457
458        end = start+1;
459        while (*end != ' ' && *end != '\0')     /* find end of token */
460            end++;
461        if (*end == ' ')
462            *end++ = '\0';          /* mark end, advance to indicate more */
463
464        if (quotingArg != NULL) {
465            addOption(quotingArg);
466        }
467        addOption(start);
468        start = end;
469    }
470}
471
472/*
473 * Reads a "property" into "buffer" with a default of "defaultArg". If
474 * the property is non-empty, it is treated as a runtime option such
475 * as "-Xmx32m".
476 *
477 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
478 *
479 * If an argument is found, it is added to mOptions.
480 *
481 * If an option is found, it is added to mOptions and true is
482 * returned. Otherwise false is returned.
483 */
484bool AndroidRuntime::parseRuntimeOption(const char* property,
485                                        char* buffer,
486                                        const char* runtimeArg,
487                                        const char* defaultArg)
488{
489    strcpy(buffer, runtimeArg);
490    size_t runtimeArgLen = strlen(runtimeArg);
491    property_get(property, buffer+runtimeArgLen, defaultArg);
492    if (buffer[runtimeArgLen] == '\0') {
493        return false;
494    }
495    addOption(buffer);
496    return true;
497}
498
499/*
500 * Reads a "property" into "buffer". If the property is non-empty, it
501 * is treated as a dex2oat compiler option that should be
502 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
503 *
504 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
505 *
506 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
507 *
508 * If an option is found, it is added to mOptions and true is
509 * returned. Otherwise false is returned.
510 */
511bool AndroidRuntime::parseCompilerOption(const char* property,
512                                         char* buffer,
513                                         const char* compilerArg,
514                                         const char* quotingArg)
515{
516    strcpy(buffer, compilerArg);
517    size_t compilerArgLen = strlen(compilerArg);
518    property_get(property, buffer+compilerArgLen, "");
519    if (buffer[compilerArgLen] == '\0') {
520        return false;
521    }
522    addOption(quotingArg);
523    addOption(buffer);
524    return true;
525}
526
527/*
528 * Reads a "property" into "buffer". If the property is non-empty, it
529 * is treated as a dex2oat compiler runtime option that should be
530 * passed as a quoted option, e.g. "-Ximage-compiler-option
531 * --runtime-arg -Ximage-compiler-option -Xmx32m".
532 *
533 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
534 *
535 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
536 *
537 * If an option is found, it is added to mOptions and true is
538 * returned. Otherwise false is returned.
539 */
540bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
541                                                char* buffer,
542                                                const char* runtimeArg,
543                                                const char* quotingArg)
544{
545    strcpy(buffer, runtimeArg);
546    size_t runtimeArgLen = strlen(runtimeArg);
547    property_get(property, buffer+runtimeArgLen, "");
548    if (buffer[runtimeArgLen] == '\0') {
549        return false;
550    }
551    addOption(quotingArg);
552    addOption("--runtime-arg");
553    addOption(quotingArg);
554    addOption(buffer);
555    return true;
556}
557
558/*
559 * Start the Dalvik Virtual Machine.
560 *
561 * Various arguments, most determined by system properties, are passed in.
562 * The "mOptions" vector is updated.
563 *
564 * CAUTION: when adding options in here, be careful not to put the
565 * char buffer inside a nested scope.  Adding the buffer to the
566 * options using mOptions.add() does not copy the buffer, so if the
567 * buffer goes out of scope the option may be overwritten.  It's best
568 * to put the buffer at the top of the function so that it is more
569 * unlikely that someone will surround it in a scope at a later time
570 * and thus introduce a bug.
571 *
572 * Returns 0 on success.
573 */
574int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
575{
576    JavaVMInitArgs initArgs;
577    char propBuf[PROPERTY_VALUE_MAX];
578    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
579    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
580    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
581    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
582    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
583    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
584    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
585    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
586    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
587    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
588    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
589    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
590    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
591    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
592    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
593    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
594    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
595    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
596    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
597    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
598    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
599    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
600    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
601    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
602    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
603    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
604    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
605    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
606    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
607    char extraOptsBuf[PROPERTY_VALUE_MAX];
608    char voldDecryptBuf[PROPERTY_VALUE_MAX];
609    enum {
610      kEMDefault,
611      kEMIntPortable,
612      kEMIntFast,
613      kEMJitCompiler,
614    } executionMode = kEMDefault;
615    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
616    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
617    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
618    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
619    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
620    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
621    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
622
623    bool checkJni = false;
624    property_get("dalvik.vm.checkjni", propBuf, "");
625    if (strcmp(propBuf, "true") == 0) {
626        checkJni = true;
627    } else if (strcmp(propBuf, "false") != 0) {
628        /* property is neither true nor false; fall back on kernel parameter */
629        property_get("ro.kernel.android.checkjni", propBuf, "");
630        if (propBuf[0] == '1') {
631            checkJni = true;
632        }
633    }
634    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
635    if (checkJni) {
636        /* extended JNI checking */
637        addOption("-Xcheck:jni");
638
639        /* with -Xcheck:jni, this provides a JNI function call trace */
640        //addOption("-verbose:jni");
641    }
642
643    property_get("dalvik.vm.execution-mode", propBuf, "");
644    if (strcmp(propBuf, "int:portable") == 0) {
645        executionMode = kEMIntPortable;
646    } else if (strcmp(propBuf, "int:fast") == 0) {
647        executionMode = kEMIntFast;
648    } else if (strcmp(propBuf, "int:jit") == 0) {
649        executionMode = kEMJitCompiler;
650    }
651
652    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
653
654    strcpy(jniOptsBuf, "-Xjniopts:");
655    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
656        ALOGI("JNI options: '%s'\n", jniOptsBuf);
657    }
658
659    /* route exit() to our handler */
660    addOption("exit", (void*) runtime_exit);
661
662    /* route fprintf() to our handler */
663    addOption("vfprintf", (void*) runtime_vfprintf);
664
665    /* register the framework-specific "is sensitive thread" hook */
666    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
667
668    /* enable verbose; standard options are { jni, gc, class } */
669    //addOption("-verbose:jni");
670    addOption("-verbose:gc");
671    //addOption("-verbose:class");
672
673    /*
674     * The default starting and maximum size of the heap.  Larger
675     * values should be specified in a product property override.
676     */
677    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
678    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
679
680    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
681    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
682    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
683    parseRuntimeOption("dalvik.vm.heaptargetutilization",
684                       heaptargetutilizationOptsBuf,
685                       "-XX:HeapTargetUtilization=");
686
687    /*
688     * JIT related options.
689     */
690    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
691    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
692    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
693    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
694
695    property_get("ro.config.low_ram", propBuf, "");
696    if (strcmp(propBuf, "true") == 0) {
697      addOption("-XX:LowMemoryMode");
698    }
699
700    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
701    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
702
703    /*
704     * Enable debugging only for apps forked from zygote.
705     * Set suspend=y to pause during VM init and use android ADB transport.
706     */
707    if (zygote) {
708      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
709    }
710
711    parseRuntimeOption("dalvik.vm.lockprof.threshold",
712                       lockProfThresholdBuf,
713                       "-Xlockprofthreshold:");
714
715    if (executionMode == kEMIntPortable) {
716        addOption("-Xint:portable");
717    } else if (executionMode == kEMIntFast) {
718        addOption("-Xint:fast");
719    } else if (executionMode == kEMJitCompiler) {
720        addOption("-Xint:jit");
721    }
722
723    // If we are booting without the real /data, don't spend time compiling.
724    property_get("vold.decrypt", voldDecryptBuf, "");
725    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
726                             (strcmp(voldDecryptBuf, "1") == 0));
727
728    // Extra options for boot.art/boot.oat image generation.
729    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
730                               "-Xms", "-Ximage-compiler-option");
731    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
732                               "-Xmx", "-Ximage-compiler-option");
733    if (skip_compilation) {
734        addOption("-Ximage-compiler-option");
735        addOption("--compiler-filter=verify-none");
736    } else {
737        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
738                            "--compiler-filter=", "-Ximage-compiler-option");
739    }
740
741    // Make sure there is a preloaded-classes file.
742    if (!hasFile("/system/etc/preloaded-classes")) {
743        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
744              strerror(errno));
745        return -1;
746    }
747    addOption("-Ximage-compiler-option");
748    addOption("--image-classes=/system/etc/preloaded-classes");
749
750    // If there is a compiled-classes file, push it.
751    if (hasFile("/system/etc/compiled-classes")) {
752        addOption("-Ximage-compiler-option");
753        addOption("--compiled-classes=/system/etc/compiled-classes");
754    }
755
756    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
757    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
758
759    // Extra options for DexClassLoader.
760    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
761                               "-Xms", "-Xcompiler-option");
762    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
763                               "-Xmx", "-Xcompiler-option");
764    if (skip_compilation) {
765        addOption("-Xcompiler-option");
766        addOption("--compiler-filter=verify-none");
767
768        // We skip compilation when a minimal runtime is brought up for decryption. In that case
769        // /data is temporarily backed by a tmpfs, which is usually small.
770        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
771        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
772        // directly instead.
773        addOption("--runtime-arg");
774        addOption("-Xnorelocate");
775    } else {
776        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
777                            "--compiler-filter=", "-Xcompiler-option");
778    }
779    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
780    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
781                        "-Ximage-compiler-option");
782
783    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
784    // pass the instruction-set-features/variant as an image-compiler-option.
785    // TODO: Find a better way for the instruction-set.
786#if defined(__arm__)
787    constexpr const char* instruction_set = "arm";
788#elif defined(__aarch64__)
789    constexpr const char* instruction_set = "arm64";
790#elif defined(__mips__) && !defined(__LP64__)
791    constexpr const char* instruction_set = "mips";
792#elif defined(__mips__) && defined(__LP64__)
793    constexpr const char* instruction_set = "mips64";
794#elif defined(__i386__)
795    constexpr const char* instruction_set = "x86";
796#elif defined(__x86_64__)
797    constexpr const char* instruction_set = "x86_64";
798#else
799    constexpr const char* instruction_set = "unknown";
800#endif
801    // Note: it is OK to reuse the buffer, as the values are exactly the same between
802    //       * compiler-option, used for runtime compilation (DexClassLoader)
803    //       * image-compiler-option, used for boot-image compilation on device
804
805    // Copy the variant.
806    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
807    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
808                        "--instruction-set-variant=", "-Ximage-compiler-option");
809    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
810                        "--instruction-set-variant=", "-Xcompiler-option");
811    // Copy the features.
812    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
813    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
814                        "--instruction-set-features=", "-Ximage-compiler-option");
815    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
816                        "--instruction-set-features=", "-Xcompiler-option");
817
818
819    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
820    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
821
822    /* extra options; parse this late so it overrides others */
823    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
824    parseExtraOpts(extraOptsBuf, NULL);
825
826    /* Set the properties for locale */
827    {
828        strcpy(localeOption, "-Duser.locale=");
829        const std::string locale = readLocale();
830        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
831        addOption(localeOption);
832    }
833
834    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
835    property_get("ro.debuggable", propBuf, "0");
836    if (strcmp(propBuf, "1") == 0) {
837        property_get("dalvik.vm.method-trace", propBuf, "false");
838        if (strcmp(propBuf, "true") == 0) {
839            addOption("-Xmethod-trace");
840            parseRuntimeOption("dalvik.vm.method-trace-file",
841                               methodTraceFileBuf,
842                               "-Xmethod-trace-file:");
843            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
844                               methodTraceFileSizeBuf,
845                               "-Xmethod-trace-file-size:");
846            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
847            if (strcmp(propBuf, "true") == 0) {
848                addOption("-Xmethod-trace-stream");
849            }
850        }
851    }
852
853    // Native bridge library. "0" means that native bridge is disabled.
854    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
855    if (propBuf[0] == '\0') {
856        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
857    } else if (strcmp(propBuf, "0") != 0) {
858        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
859                 "-XX:NativeBridge=%s", propBuf);
860        addOption(nativeBridgeLibrary);
861    }
862
863#if defined(__LP64__)
864    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
865#else
866    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
867#endif  // defined(__LP64__)
868    property_get(cpu_abilist_property_name, propBuf, "");
869    if (propBuf[0] == '\0') {
870        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
871        return -1;
872    }
873    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
874    addOption(cpuAbiListBuf);
875
876    // Dalvik-cache pruning counter.
877    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
878                       "-Xzygote-max-boot-retry=");
879
880    /*
881     * When running with debug.generate-debug-info, add --generate-debug-info to
882     * the compiler options so that the boot image, if it is compiled on device,
883     * will include native debugging information.
884     */
885    property_get("debug.generate-debug-info", propBuf, "");
886    if (strcmp(propBuf, "true") == 0) {
887        addOption("-Xcompiler-option");
888        addOption("--generate-debug-info");
889        addOption("-Ximage-compiler-option");
890        addOption("--generate-debug-info");
891    }
892
893    /*
894     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
895     * contain the fingerprint and can be parsed.
896     */
897    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
898
899    initArgs.version = JNI_VERSION_1_4;
900    initArgs.options = mOptions.editArray();
901    initArgs.nOptions = mOptions.size();
902    initArgs.ignoreUnrecognized = JNI_FALSE;
903
904    /*
905     * Initialize the VM.
906     *
907     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
908     * If this call succeeds, the VM is ready, and we can start issuing
909     * JNI calls.
910     */
911    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
912        ALOGE("JNI_CreateJavaVM failed\n");
913        return -1;
914    }
915
916    return 0;
917}
918
919char* AndroidRuntime::toSlashClassName(const char* className)
920{
921    char* result = strdup(className);
922    for (char* cp = result; *cp != '\0'; cp++) {
923        if (*cp == '.') {
924            *cp = '/';
925        }
926    }
927    return result;
928}
929
930/** Create a Java string from an ASCII or Latin-1 string */
931jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
932    if (!bytes) return NULL;
933    int length = strlen(bytes);
934    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
935    if (!buffer) return NULL;
936    jchar* chp = buffer;
937    for (int i = 0; i < length; i++) {
938        *chp++ = *bytes++;
939    }
940    return env->NewString(buffer, length);
941}
942
943
944/*
945 * Start the Android runtime.  This involves starting the virtual machine
946 * and calling the "static void main(String[] args)" method in the class
947 * named by "className".
948 *
949 * Passes the main function two arguments, the class name and the specified
950 * options string.
951 */
952void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
953{
954    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
955            className != NULL ? className : "(unknown)", getuid());
956
957    static const String8 startSystemServer("start-system-server");
958
959    /*
960     * 'startSystemServer == true' means runtime is obsolete and not run from
961     * init.rc anymore, so we print out the boot start event here.
962     */
963    for (size_t i = 0; i < options.size(); ++i) {
964        if (options[i] == startSystemServer) {
965           /* track our progress through the boot sequence */
966           const int LOG_BOOT_PROGRESS_START = 3000;
967           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
968        }
969    }
970
971    const char* rootDir = getenv("ANDROID_ROOT");
972    if (rootDir == NULL) {
973        rootDir = "/system";
974        if (!hasDir("/system")) {
975            LOG_FATAL("No root directory specified, and /android does not exist.");
976            return;
977        }
978        setenv("ANDROID_ROOT", rootDir, 1);
979    }
980
981    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
982    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
983
984    /* start the virtual machine */
985    JniInvocation jni_invocation;
986    jni_invocation.Init(NULL);
987    JNIEnv* env;
988    if (startVm(&mJavaVM, &env, zygote) != 0) {
989        return;
990    }
991    onVmCreated(env);
992
993    /*
994     * Register android functions.
995     */
996    if (startReg(env) < 0) {
997        ALOGE("Unable to register all android natives\n");
998        return;
999    }
1000
1001    /*
1002     * We want to call main() with a String array with arguments in it.
1003     * At present we have two arguments, the class name and an option string.
1004     * Create an array to hold them.
1005     */
1006    jclass stringClass;
1007    jobjectArray strArray;
1008    jstring classNameStr;
1009
1010    stringClass = env->FindClass("java/lang/String");
1011    assert(stringClass != NULL);
1012    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1013    assert(strArray != NULL);
1014    classNameStr = env->NewStringUTF(className);
1015    assert(classNameStr != NULL);
1016    env->SetObjectArrayElement(strArray, 0, classNameStr);
1017
1018    for (size_t i = 0; i < options.size(); ++i) {
1019        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1020        assert(optionsStr != NULL);
1021        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1022    }
1023
1024    /*
1025     * Start VM.  This thread becomes the main thread of the VM, and will
1026     * not return until the VM exits.
1027     */
1028    char* slashClassName = toSlashClassName(className);
1029    jclass startClass = env->FindClass(slashClassName);
1030    if (startClass == NULL) {
1031        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1032        /* keep going */
1033    } else {
1034        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1035            "([Ljava/lang/String;)V");
1036        if (startMeth == NULL) {
1037            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1038            /* keep going */
1039        } else {
1040            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1041
1042#if 0
1043            if (env->ExceptionCheck())
1044                threadExitUncaughtException(env);
1045#endif
1046        }
1047    }
1048    free(slashClassName);
1049
1050    ALOGD("Shutting down VM\n");
1051    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1052        ALOGW("Warning: unable to detach main thread\n");
1053    if (mJavaVM->DestroyJavaVM() != 0)
1054        ALOGW("Warning: VM did not shut down cleanly\n");
1055}
1056
1057void AndroidRuntime::exit(int code)
1058{
1059    if (mExitWithoutCleanup) {
1060        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1061        ::_exit(code);
1062    } else {
1063        ALOGI("VM exiting with result code %d.", code);
1064        onExit(code);
1065        ::exit(code);
1066    }
1067}
1068
1069void AndroidRuntime::onVmCreated(JNIEnv* env)
1070{
1071    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1072}
1073
1074/*
1075 * Get the JNIEnv pointer for this thread.
1076 *
1077 * Returns NULL if the slot wasn't allocated or populated.
1078 */
1079/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1080{
1081    JNIEnv* env;
1082    JavaVM* vm = AndroidRuntime::getJavaVM();
1083    assert(vm != NULL);
1084
1085    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1086        return NULL;
1087    return env;
1088}
1089
1090/*
1091 * Makes the current thread visible to the VM.
1092 *
1093 * The JNIEnv pointer returned is only valid for the current thread, and
1094 * thus must be tucked into thread-local storage.
1095 */
1096static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1097{
1098    JavaVMAttachArgs args;
1099    JavaVM* vm;
1100    jint result;
1101
1102    vm = AndroidRuntime::getJavaVM();
1103    assert(vm != NULL);
1104
1105    args.version = JNI_VERSION_1_4;
1106    args.name = (char*) threadName;
1107    args.group = NULL;
1108
1109    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1110    if (result != JNI_OK)
1111        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1112
1113    return result;
1114}
1115
1116/*
1117 * Detach the current thread from the set visible to the VM.
1118 */
1119static int javaDetachThread(void)
1120{
1121    JavaVM* vm;
1122    jint result;
1123
1124    vm = AndroidRuntime::getJavaVM();
1125    assert(vm != NULL);
1126
1127    result = vm->DetachCurrentThread();
1128    if (result != JNI_OK)
1129        ALOGE("ERROR: thread detach failed\n");
1130    return result;
1131}
1132
1133/*
1134 * When starting a native thread that will be visible from the VM, we
1135 * bounce through this to get the right attach/detach action.
1136 * Note that this function calls free(args)
1137 */
1138/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1139    void* start = ((void**)args)[0];
1140    void* userData = ((void **)args)[1];
1141    char* name = (char*) ((void **)args)[2];        // we own this storage
1142    free(args);
1143    JNIEnv* env;
1144    int result;
1145
1146    /* hook us into the VM */
1147    if (javaAttachThread(name, &env) != JNI_OK)
1148        return -1;
1149
1150    /* start the thread running */
1151    result = (*(android_thread_func_t)start)(userData);
1152
1153    /* unhook us */
1154    javaDetachThread();
1155    free(name);
1156
1157    return result;
1158}
1159
1160/*
1161 * This is invoked from androidCreateThreadEtc() via the callback
1162 * set with androidSetCreateThreadFunc().
1163 *
1164 * We need to create the new thread in such a way that it gets hooked
1165 * into the VM before it really starts executing.
1166 */
1167/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1168                                android_thread_func_t entryFunction,
1169                                void* userData,
1170                                const char* threadName,
1171                                int32_t threadPriority,
1172                                size_t threadStackSize,
1173                                android_thread_id_t* threadId)
1174{
1175    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1176    int result;
1177
1178    if (!threadName)
1179        threadName = "unnamed thread";
1180
1181    args[0] = (void*) entryFunction;
1182    args[1] = userData;
1183    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1184
1185    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1186        threadName, threadPriority, threadStackSize, threadId);
1187    return result;
1188}
1189
1190/*
1191 * Create a thread that is visible from the VM.
1192 *
1193 * This is called from elsewhere in the library.
1194 */
1195/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1196    void (*start)(void *), void* arg)
1197{
1198    android_thread_id_t threadId = 0;
1199    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1200        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1201    return threadId;
1202}
1203
1204#if 0
1205static void quickTest(void* arg)
1206{
1207    const char* str = (const char*) arg;
1208
1209    printf("In quickTest: %s\n", str);
1210}
1211#endif
1212
1213#ifdef NDEBUG
1214    #define REG_JNI(name)      { name }
1215    struct RegJNIRec {
1216        int (*mProc)(JNIEnv*);
1217    };
1218#else
1219    #define REG_JNI(name)      { name, #name }
1220    struct RegJNIRec {
1221        int (*mProc)(JNIEnv*);
1222        const char* mName;
1223    };
1224#endif
1225
1226typedef void (*RegJAMProc)();
1227
1228static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1229{
1230    for (size_t i = 0; i < count; i++) {
1231        if (array[i].mProc(env) < 0) {
1232#ifndef NDEBUG
1233            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1234#endif
1235            return -1;
1236        }
1237    }
1238    return 0;
1239}
1240
1241static const RegJNIRec gRegJNI[] = {
1242    REG_JNI(register_com_android_internal_os_RuntimeInit),
1243    REG_JNI(register_android_os_SystemClock),
1244    REG_JNI(register_android_util_EventLog),
1245    REG_JNI(register_android_util_Log),
1246    REG_JNI(register_android_util_PathParser),
1247    REG_JNI(register_android_content_AssetManager),
1248    REG_JNI(register_android_content_StringBlock),
1249    REG_JNI(register_android_content_XmlBlock),
1250    REG_JNI(register_android_text_AndroidCharacter),
1251    REG_JNI(register_android_text_StaticLayout),
1252    REG_JNI(register_android_text_AndroidBidi),
1253    REG_JNI(register_android_view_InputDevice),
1254    REG_JNI(register_android_view_KeyCharacterMap),
1255    REG_JNI(register_android_os_Process),
1256    REG_JNI(register_android_os_SystemProperties),
1257    REG_JNI(register_android_os_Binder),
1258    REG_JNI(register_android_os_Parcel),
1259    REG_JNI(register_android_nio_utils),
1260    REG_JNI(register_android_graphics_Canvas),
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_CanvasProperty),
1294    REG_JNI(register_android_graphics_ColorFilter),
1295    REG_JNI(register_android_graphics_DrawFilter),
1296    REG_JNI(register_android_graphics_FontFamily),
1297    REG_JNI(register_android_graphics_Interpolator),
1298    REG_JNI(register_android_graphics_LayerRasterizer),
1299    REG_JNI(register_android_graphics_MaskFilter),
1300    REG_JNI(register_android_graphics_Matrix),
1301    REG_JNI(register_android_graphics_Movie),
1302    REG_JNI(register_android_graphics_NinePatch),
1303    REG_JNI(register_android_graphics_Paint),
1304    REG_JNI(register_android_graphics_Path),
1305    REG_JNI(register_android_graphics_PathMeasure),
1306    REG_JNI(register_android_graphics_PathEffect),
1307    REG_JNI(register_android_graphics_Picture),
1308    REG_JNI(register_android_graphics_PorterDuff),
1309    REG_JNI(register_android_graphics_Rasterizer),
1310    REG_JNI(register_android_graphics_Region),
1311    REG_JNI(register_android_graphics_Shader),
1312    REG_JNI(register_android_graphics_SurfaceTexture),
1313    REG_JNI(register_android_graphics_Typeface),
1314    REG_JNI(register_android_graphics_Xfermode),
1315    REG_JNI(register_android_graphics_YuvImage),
1316    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1317    REG_JNI(register_android_graphics_pdf_PdfDocument),
1318    REG_JNI(register_android_graphics_pdf_PdfEditor),
1319    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1320
1321    REG_JNI(register_android_database_CursorWindow),
1322    REG_JNI(register_android_database_SQLiteConnection),
1323    REG_JNI(register_android_database_SQLiteGlobal),
1324    REG_JNI(register_android_database_SQLiteDebug),
1325    REG_JNI(register_android_os_Debug),
1326    REG_JNI(register_android_os_FileObserver),
1327    REG_JNI(register_android_os_MessageQueue),
1328    REG_JNI(register_android_os_SELinux),
1329    REG_JNI(register_android_os_Trace),
1330    REG_JNI(register_android_os_UEventObserver),
1331    REG_JNI(register_android_net_LocalSocketImpl),
1332    REG_JNI(register_android_net_NetworkUtils),
1333    REG_JNI(register_android_net_TrafficStats),
1334    REG_JNI(register_android_os_MemoryFile),
1335    REG_JNI(register_com_android_internal_os_Zygote),
1336    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1337    REG_JNI(register_android_hardware_Camera),
1338    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1339    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1340    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1341    REG_JNI(register_android_hardware_camera2_DngCreator),
1342    REG_JNI(register_android_hardware_Radio),
1343    REG_JNI(register_android_hardware_SensorManager),
1344    REG_JNI(register_android_hardware_SerialPort),
1345    REG_JNI(register_android_hardware_SoundTrigger),
1346    REG_JNI(register_android_hardware_UsbDevice),
1347    REG_JNI(register_android_hardware_UsbDeviceConnection),
1348    REG_JNI(register_android_hardware_UsbRequest),
1349    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1350    REG_JNI(register_android_media_AudioRecord),
1351    REG_JNI(register_android_media_AudioSystem),
1352    REG_JNI(register_android_media_AudioTrack),
1353    REG_JNI(register_android_media_JetPlayer),
1354    REG_JNI(register_android_media_RemoteDisplay),
1355    REG_JNI(register_android_media_ToneGenerator),
1356
1357    REG_JNI(register_android_opengl_classes),
1358    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1359    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1360    REG_JNI(register_android_backup_BackupDataInput),
1361    REG_JNI(register_android_backup_BackupDataOutput),
1362    REG_JNI(register_android_backup_FileBackupHelperBase),
1363    REG_JNI(register_android_backup_BackupHelperDispatcher),
1364    REG_JNI(register_android_app_backup_FullBackup),
1365    REG_JNI(register_android_app_ActivityThread),
1366    REG_JNI(register_android_app_NativeActivity),
1367    REG_JNI(register_android_util_jar_StrictJarFile),
1368    REG_JNI(register_android_view_InputChannel),
1369    REG_JNI(register_android_view_InputEventReceiver),
1370    REG_JNI(register_android_view_InputEventSender),
1371    REG_JNI(register_android_view_InputQueue),
1372    REG_JNI(register_android_view_KeyEvent),
1373    REG_JNI(register_android_view_MotionEvent),
1374    REG_JNI(register_android_view_PointerIcon),
1375    REG_JNI(register_android_view_VelocityTracker),
1376
1377    REG_JNI(register_android_content_res_ObbScanner),
1378    REG_JNI(register_android_content_res_Configuration),
1379
1380    REG_JNI(register_android_animation_PropertyValuesHolder),
1381    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1382    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1383
1384
1385};
1386
1387/*
1388 * Register android native functions with the VM.
1389 */
1390/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1391{
1392    ATRACE_NAME("RegisterAndroidNatives");
1393    /*
1394     * This hook causes all future threads created in this process to be
1395     * attached to the JavaVM.  (This needs to go away in favor of JNI
1396     * Attach calls.)
1397     */
1398    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1399
1400    ALOGV("--- registering native functions ---\n");
1401
1402    /*
1403     * Every "register" function calls one or more things that return
1404     * a local reference (e.g. FindClass).  Because we haven't really
1405     * started the VM yet, they're all getting stored in the base frame
1406     * and never released.  Use Push/Pop to manage the storage.
1407     */
1408    env->PushLocalFrame(200);
1409
1410    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1411        env->PopLocalFrame(NULL);
1412        return -1;
1413    }
1414    env->PopLocalFrame(NULL);
1415
1416    //createJavaThread("fubar", quickTest, (void*) "hello");
1417
1418    return 0;
1419}
1420
1421AndroidRuntime* AndroidRuntime::getRuntime()
1422{
1423    return gCurRuntime;
1424}
1425
1426/**
1427 * Used by surface flinger's DdmConnection to register native methods from
1428 * the framework.
1429 */
1430extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1431    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1432}
1433}   // namespace android
1434