AndroidRuntime.cpp revision ea90281082b42a2c71d33e25bc369e5eed44ed52 
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_ApplicationLoaders(JNIEnv* env);
177extern int register_android_app_ActivityThread(JNIEnv *env);
178extern int register_android_app_NativeActivity(JNIEnv *env);
179extern int register_android_media_RemoteDisplay(JNIEnv *env);
180extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
181extern int register_android_view_InputChannel(JNIEnv* env);
182extern int register_android_view_InputDevice(JNIEnv* env);
183extern int register_android_view_InputEventReceiver(JNIEnv* env);
184extern int register_android_view_InputEventSender(JNIEnv* env);
185extern int register_android_view_InputQueue(JNIEnv* env);
186extern int register_android_view_KeyCharacterMap(JNIEnv *env);
187extern int register_android_view_KeyEvent(JNIEnv* env);
188extern int register_android_view_MotionEvent(JNIEnv* env);
189extern int register_android_view_PointerIcon(JNIEnv* env);
190extern int register_android_view_VelocityTracker(JNIEnv* env);
191extern int register_android_content_res_ObbScanner(JNIEnv* env);
192extern int register_android_content_res_Configuration(JNIEnv* env);
193extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
194extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
195extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
196extern int register_com_android_internal_os_Zygote(JNIEnv *env);
197extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
198
199static AndroidRuntime* gCurRuntime = NULL;
200
201/*
202 * Code written in the Java Programming Language calls here from main().
203 */
204static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
205{
206    gCurRuntime->onStarted();
207}
208
209static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
210{
211    gCurRuntime->onZygoteInit();
212}
213
214static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
215        jobject clazz, jboolean exitWithoutCleanup)
216{
217    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
218}
219
220/*
221 * JNI registration.
222 */
223static const JNINativeMethod gMethods[] = {
224    { "nativeFinishInit", "()V",
225        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
226    { "nativeZygoteInit", "()V",
227        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
228    { "nativeSetExitWithoutCleanup", "(Z)V",
229        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
230};
231
232int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
233{
234    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
235        gMethods, NELEM(gMethods));
236}
237
238// ----------------------------------------------------------------------
239
240/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
241
242AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
243        mExitWithoutCleanup(false),
244        mArgBlockStart(argBlockStart),
245        mArgBlockLength(argBlockLength)
246{
247    SkGraphics::Init();
248    // There is also a global font cache, but its budget is specified by
249    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
250
251    // Pre-allocate enough space to hold a fair number of options.
252    mOptions.setCapacity(20);
253
254    assert(gCurRuntime == NULL);        // one per process
255    gCurRuntime = this;
256}
257
258AndroidRuntime::~AndroidRuntime()
259{
260    SkGraphics::Term();
261}
262
263/*
264 * Register native methods using JNI.
265 */
266/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
267    const char* className, const JNINativeMethod* gMethods, int numMethods)
268{
269    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
270}
271
272void AndroidRuntime::setArgv0(const char* argv0) {
273    memset(mArgBlockStart, 0, mArgBlockLength);
274    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
275}
276
277status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
278    const Vector<String8>& args)
279{
280    JNIEnv* env;
281    jmethodID methodId;
282
283    ALOGD("Calling main entry %s", className.string());
284
285    env = getJNIEnv();
286    if (clazz == NULL || env == NULL) {
287        return UNKNOWN_ERROR;
288    }
289
290    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
291    if (methodId == NULL) {
292        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
293        return UNKNOWN_ERROR;
294    }
295
296    /*
297     * We want to call main() with a String array with our arguments in it.
298     * Create an array and populate it.
299     */
300    jclass stringClass;
301    jobjectArray strArray;
302
303    const size_t numArgs = args.size();
304    stringClass = env->FindClass("java/lang/String");
305    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
306
307    for (size_t i = 0; i < numArgs; i++) {
308        jstring argStr = env->NewStringUTF(args[i].string());
309        env->SetObjectArrayElement(strArray, i, argStr);
310    }
311
312    env->CallStaticVoidMethod(clazz, methodId, strArray);
313    return NO_ERROR;
314}
315
316/*
317 * The VM calls this through the "exit" hook.
318 */
319static void runtime_exit(int code)
320{
321    gCurRuntime->exit(code);
322}
323
324/*
325 * The VM calls this through the "vfprintf" hook.
326 *
327 * We ignore "fp" and just write the results to the log file.
328 */
329static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
330{
331    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
332}
333
334/**
335 * The VM calls this when mutex contention debugging is enabled to
336 * determine whether or not the blocked thread was a "sensitive thread"
337 * for user responsiveness/smoothess.
338 *
339 * Our policy for this is whether or not we're tracing any StrictMode
340 * events on this thread (which we might've inherited via Binder calls
341 * into us)
342 */
343static bool runtime_isSensitiveThread() {
344    IPCThreadState* state = IPCThreadState::selfOrNull();
345    return state && state->getStrictModePolicy() != 0;
346}
347
348static int hasDir(const char* dir)
349{
350    struct stat s;
351    int res = stat(dir, &s);
352    if (res == 0) {
353        return S_ISDIR(s.st_mode);
354    }
355    return 0;
356}
357
358static bool hasFile(const char* file) {
359    struct stat s;
360    int res = stat(file, &s);
361    if (res == 0) {
362        return S_ISREG(s.st_mode);
363    }
364    return false;
365}
366
367// Convenience wrapper over the property API that returns an
368// std::string.
369std::string getProperty(const char* key, const char* defaultValue) {
370    std::vector<char> temp(PROPERTY_VALUE_MAX);
371    const int len = property_get(key, &temp[0], defaultValue);
372    if (len < 0) {
373        return "";
374    }
375    return std::string(&temp[0], len);
376}
377
378/*
379 * Read the persistent locale. Inspects the following system properties
380 * (in order) and returns the first non-empty property in the list :
381 *
382 * (1) persist.sys.locale
383 * (2) persist.sys.language/country/localevar (country and localevar are
384 * inspected iff. language is non-empty.
385 * (3) ro.product.locale
386 * (4) ro.product.locale.language/region
387 *
388 * Note that we need to inspect persist.sys.language/country/localevar to
389 * preserve language settings for devices that are upgrading from Lollipop
390 * to M. The same goes for ro.product.locale.language/region as well.
391 */
392const std::string readLocale()
393{
394    const std::string locale = getProperty("persist.sys.locale", "");
395    if (!locale.empty()) {
396        return locale;
397    }
398
399    const std::string language = getProperty("persist.sys.language", "");
400    if (!language.empty()) {
401        const std::string country = getProperty("persist.sys.country", "");
402        const std::string variant = getProperty("persist.sys.localevar", "");
403
404        std::string out = language;
405        if (!country.empty()) {
406            out = out + "-" + country;
407        }
408
409        if (!variant.empty()) {
410            out = out + "-" + variant;
411        }
412
413        return out;
414    }
415
416    const std::string productLocale = getProperty("ro.product.locale", "");
417    if (!productLocale.empty()) {
418        return productLocale;
419    }
420
421    // If persist.sys.locale and ro.product.locale are missing,
422    // construct a locale value from the individual locale components.
423    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
424    const std::string productRegion = getProperty("ro.product.locale.region", "US");
425
426    return productLanguage + "-" + productRegion;
427}
428
429void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
430{
431    JavaVMOption opt;
432    opt.optionString = optionString;
433    opt.extraInfo = extraInfo;
434    mOptions.add(opt);
435}
436
437/*
438 * Parse a property containing space-separated options that should be
439 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
440 *
441 * This will cut up "extraOptsBuf" as we chop it into individual options.
442 *
443 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
444 *
445 * Adds the strings, if any, to mOptions.
446 */
447void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
448{
449    char* start = extraOptsBuf;
450    char* end = NULL;
451    while (*start != '\0') {
452        while (*start == ' ')                   /* skip leading whitespace */
453            start++;
454        if (*start == '\0')                     /* was trailing ws, bail */
455            break;
456
457        end = start+1;
458        while (*end != ' ' && *end != '\0')     /* find end of token */
459            end++;
460        if (*end == ' ')
461            *end++ = '\0';          /* mark end, advance to indicate more */
462
463        if (quotingArg != NULL) {
464            addOption(quotingArg);
465        }
466        addOption(start);
467        start = end;
468    }
469}
470
471/*
472 * Reads a "property" into "buffer" with a default of "defaultArg". If
473 * the property is non-empty, it is treated as a runtime option such
474 * as "-Xmx32m".
475 *
476 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
477 *
478 * If an argument is found, it is added to mOptions.
479 *
480 * If an option is found, it is added to mOptions and true is
481 * returned. Otherwise false is returned.
482 */
483bool AndroidRuntime::parseRuntimeOption(const char* property,
484                                        char* buffer,
485                                        const char* runtimeArg,
486                                        const char* defaultArg)
487{
488    strcpy(buffer, runtimeArg);
489    size_t runtimeArgLen = strlen(runtimeArg);
490    property_get(property, buffer+runtimeArgLen, defaultArg);
491    if (buffer[runtimeArgLen] == '\0') {
492        return false;
493    }
494    addOption(buffer);
495    return true;
496}
497
498/*
499 * Reads a "property" into "buffer". If the property is non-empty, it
500 * is treated as a dex2oat compiler option that should be
501 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
502 *
503 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
504 *
505 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
506 *
507 * If an option is found, it is added to mOptions and true is
508 * returned. Otherwise false is returned.
509 */
510bool AndroidRuntime::parseCompilerOption(const char* property,
511                                         char* buffer,
512                                         const char* compilerArg,
513                                         const char* quotingArg)
514{
515    strcpy(buffer, compilerArg);
516    size_t compilerArgLen = strlen(compilerArg);
517    property_get(property, buffer+compilerArgLen, "");
518    if (buffer[compilerArgLen] == '\0') {
519        return false;
520    }
521    addOption(quotingArg);
522    addOption(buffer);
523    return true;
524}
525
526/*
527 * Reads a "property" into "buffer". If the property is non-empty, it
528 * is treated as a dex2oat compiler runtime option that should be
529 * passed as a quoted option, e.g. "-Ximage-compiler-option
530 * --runtime-arg -Ximage-compiler-option -Xmx32m".
531 *
532 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
533 *
534 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
535 *
536 * If an option is found, it is added to mOptions and true is
537 * returned. Otherwise false is returned.
538 */
539bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
540                                                char* buffer,
541                                                const char* runtimeArg,
542                                                const char* quotingArg)
543{
544    strcpy(buffer, runtimeArg);
545    size_t runtimeArgLen = strlen(runtimeArg);
546    property_get(property, buffer+runtimeArgLen, "");
547    if (buffer[runtimeArgLen] == '\0') {
548        return false;
549    }
550    addOption(quotingArg);
551    addOption("--runtime-arg");
552    addOption(quotingArg);
553    addOption(buffer);
554    return true;
555}
556
557/*
558 * Start the Dalvik Virtual Machine.
559 *
560 * Various arguments, most determined by system properties, are passed in.
561 * The "mOptions" vector is updated.
562 *
563 * CAUTION: when adding options in here, be careful not to put the
564 * char buffer inside a nested scope.  Adding the buffer to the
565 * options using mOptions.add() does not copy the buffer, so if the
566 * buffer goes out of scope the option may be overwritten.  It's best
567 * to put the buffer at the top of the function so that it is more
568 * unlikely that someone will surround it in a scope at a later time
569 * and thus introduce a bug.
570 *
571 * Returns 0 on success.
572 */
573int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
574{
575    JavaVMInitArgs initArgs;
576    char propBuf[PROPERTY_VALUE_MAX];
577    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
578    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
579    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
580    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
581    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
582    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
583    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
584    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
585    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
586    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
587    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
588    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
589    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
590    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
591    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
592    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
593    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
594    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
595    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
596    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
597    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
598    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
599    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
600    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
601    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
602    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
603    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
604    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
605    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
606    char extraOptsBuf[PROPERTY_VALUE_MAX];
607    char voldDecryptBuf[PROPERTY_VALUE_MAX];
608    enum {
609      kEMDefault,
610      kEMIntPortable,
611      kEMIntFast,
612      kEMJitCompiler,
613    } executionMode = kEMDefault;
614    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
615    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
616    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
617    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
618    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
619    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
620    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
621
622    bool checkJni = false;
623    property_get("dalvik.vm.checkjni", propBuf, "");
624    if (strcmp(propBuf, "true") == 0) {
625        checkJni = true;
626    } else if (strcmp(propBuf, "false") != 0) {
627        /* property is neither true nor false; fall back on kernel parameter */
628        property_get("ro.kernel.android.checkjni", propBuf, "");
629        if (propBuf[0] == '1') {
630            checkJni = true;
631        }
632    }
633    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
634    if (checkJni) {
635        /* extended JNI checking */
636        addOption("-Xcheck:jni");
637
638        /* with -Xcheck:jni, this provides a JNI function call trace */
639        //addOption("-verbose:jni");
640    }
641
642    property_get("dalvik.vm.execution-mode", propBuf, "");
643    if (strcmp(propBuf, "int:portable") == 0) {
644        executionMode = kEMIntPortable;
645    } else if (strcmp(propBuf, "int:fast") == 0) {
646        executionMode = kEMIntFast;
647    } else if (strcmp(propBuf, "int:jit") == 0) {
648        executionMode = kEMJitCompiler;
649    }
650
651    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
652
653    strcpy(jniOptsBuf, "-Xjniopts:");
654    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
655        ALOGI("JNI options: '%s'\n", jniOptsBuf);
656    }
657
658    /* route exit() to our handler */
659    addOption("exit", (void*) runtime_exit);
660
661    /* route fprintf() to our handler */
662    addOption("vfprintf", (void*) runtime_vfprintf);
663
664    /* register the framework-specific "is sensitive thread" hook */
665    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
666
667    /* enable verbose; standard options are { jni, gc, class } */
668    //addOption("-verbose:jni");
669    addOption("-verbose:gc");
670    //addOption("-verbose:class");
671
672    /*
673     * The default starting and maximum size of the heap.  Larger
674     * values should be specified in a product property override.
675     */
676    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
677    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
678
679    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
680    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
681    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
682    parseRuntimeOption("dalvik.vm.heaptargetutilization",
683                       heaptargetutilizationOptsBuf,
684                       "-XX:HeapTargetUtilization=");
685
686    /*
687     * JIT related options.
688     */
689    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
690    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
691    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
692    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
693
694    property_get("ro.config.low_ram", propBuf, "");
695    if (strcmp(propBuf, "true") == 0) {
696      addOption("-XX:LowMemoryMode");
697    }
698
699    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
700    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
701
702    /*
703     * Enable debugging only for apps forked from zygote.
704     * Set suspend=y to pause during VM init and use android ADB transport.
705     */
706    if (zygote) {
707      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
708    }
709
710    parseRuntimeOption("dalvik.vm.lockprof.threshold",
711                       lockProfThresholdBuf,
712                       "-Xlockprofthreshold:");
713
714    if (executionMode == kEMIntPortable) {
715        addOption("-Xint:portable");
716    } else if (executionMode == kEMIntFast) {
717        addOption("-Xint:fast");
718    } else if (executionMode == kEMJitCompiler) {
719        addOption("-Xint:jit");
720    }
721
722    // If we are booting without the real /data, don't spend time compiling.
723    property_get("vold.decrypt", voldDecryptBuf, "");
724    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
725                             (strcmp(voldDecryptBuf, "1") == 0));
726
727    // Extra options for boot.art/boot.oat image generation.
728    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
729                               "-Xms", "-Ximage-compiler-option");
730    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
731                               "-Xmx", "-Ximage-compiler-option");
732    if (skip_compilation) {
733        addOption("-Ximage-compiler-option");
734        addOption("--compiler-filter=verify-none");
735    } else {
736        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
737                            "--compiler-filter=", "-Ximage-compiler-option");
738    }
739
740    // Make sure there is a preloaded-classes file.
741    if (!hasFile("/system/etc/preloaded-classes")) {
742        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
743              strerror(errno));
744        return -1;
745    }
746    addOption("-Ximage-compiler-option");
747    addOption("--image-classes=/system/etc/preloaded-classes");
748
749    // If there is a compiled-classes file, push it.
750    if (hasFile("/system/etc/compiled-classes")) {
751        addOption("-Ximage-compiler-option");
752        addOption("--compiled-classes=/system/etc/compiled-classes");
753    }
754
755    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
756    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
757
758    // Extra options for DexClassLoader.
759    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
760                               "-Xms", "-Xcompiler-option");
761    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
762                               "-Xmx", "-Xcompiler-option");
763    if (skip_compilation) {
764        addOption("-Xcompiler-option");
765        addOption("--compiler-filter=verify-none");
766
767        // We skip compilation when a minimal runtime is brought up for decryption. In that case
768        // /data is temporarily backed by a tmpfs, which is usually small.
769        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
770        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
771        // directly instead.
772        addOption("--runtime-arg");
773        addOption("-Xnorelocate");
774    } else {
775        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
776                            "--compiler-filter=", "-Xcompiler-option");
777    }
778    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
779    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
780                        "-Ximage-compiler-option");
781
782    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
783    // pass the instruction-set-features/variant as an image-compiler-option.
784    // TODO: Find a better way for the instruction-set.
785#if defined(__arm__)
786    constexpr const char* instruction_set = "arm";
787#elif defined(__aarch64__)
788    constexpr const char* instruction_set = "arm64";
789#elif defined(__mips__) && !defined(__LP64__)
790    constexpr const char* instruction_set = "mips";
791#elif defined(__mips__) && defined(__LP64__)
792    constexpr const char* instruction_set = "mips64";
793#elif defined(__i386__)
794    constexpr const char* instruction_set = "x86";
795#elif defined(__x86_64__)
796    constexpr const char* instruction_set = "x86_64";
797#else
798    constexpr const char* instruction_set = "unknown";
799#endif
800    // Note: it is OK to reuse the buffer, as the values are exactly the same between
801    //       * compiler-option, used for runtime compilation (DexClassLoader)
802    //       * image-compiler-option, used for boot-image compilation on device
803
804    // Copy the variant.
805    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
806    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
807                        "--instruction-set-variant=", "-Ximage-compiler-option");
808    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
809                        "--instruction-set-variant=", "-Xcompiler-option");
810    // Copy the features.
811    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
812    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
813                        "--instruction-set-features=", "-Ximage-compiler-option");
814    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
815                        "--instruction-set-features=", "-Xcompiler-option");
816
817
818    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
819    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
820
821    /* extra options; parse this late so it overrides others */
822    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
823    parseExtraOpts(extraOptsBuf, NULL);
824
825    /* Set the properties for locale */
826    {
827        strcpy(localeOption, "-Duser.locale=");
828        const std::string locale = readLocale();
829        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
830        addOption(localeOption);
831    }
832
833    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
834    property_get("ro.debuggable", propBuf, "0");
835    if (strcmp(propBuf, "1") == 0) {
836        property_get("dalvik.vm.method-trace", propBuf, "false");
837        if (strcmp(propBuf, "true") == 0) {
838            addOption("-Xmethod-trace");
839            parseRuntimeOption("dalvik.vm.method-trace-file",
840                               methodTraceFileBuf,
841                               "-Xmethod-trace-file:");
842            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
843                               methodTraceFileSizeBuf,
844                               "-Xmethod-trace-file-size:");
845            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
846            if (strcmp(propBuf, "true") == 0) {
847                addOption("-Xmethod-trace-stream");
848            }
849        }
850    }
851
852    // Native bridge library. "0" means that native bridge is disabled.
853    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
854    if (propBuf[0] == '\0') {
855        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
856    } else if (strcmp(propBuf, "0") != 0) {
857        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
858                 "-XX:NativeBridge=%s", propBuf);
859        addOption(nativeBridgeLibrary);
860    }
861
862#if defined(__LP64__)
863    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
864#else
865    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
866#endif  // defined(__LP64__)
867    property_get(cpu_abilist_property_name, propBuf, "");
868    if (propBuf[0] == '\0') {
869        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
870        return -1;
871    }
872    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
873    addOption(cpuAbiListBuf);
874
875    // Dalvik-cache pruning counter.
876    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
877                       "-Xzygote-max-boot-retry=");
878
879    /*
880     * When running with debug.generate-debug-info, add --generate-debug-info to
881     * the compiler options so that the boot image, if it is compiled on device,
882     * will include native debugging information.
883     */
884    property_get("debug.generate-debug-info", propBuf, "");
885    if (strcmp(propBuf, "true") == 0) {
886        addOption("-Xcompiler-option");
887        addOption("--generate-debug-info");
888        addOption("-Ximage-compiler-option");
889        addOption("--generate-debug-info");
890    }
891
892    /*
893     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
894     * contain the fingerprint and can be parsed.
895     */
896    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
897
898    initArgs.version = JNI_VERSION_1_4;
899    initArgs.options = mOptions.editArray();
900    initArgs.nOptions = mOptions.size();
901    initArgs.ignoreUnrecognized = JNI_FALSE;
902
903    /*
904     * Initialize the VM.
905     *
906     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
907     * If this call succeeds, the VM is ready, and we can start issuing
908     * JNI calls.
909     */
910    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
911        ALOGE("JNI_CreateJavaVM failed\n");
912        return -1;
913    }
914
915    return 0;
916}
917
918char* AndroidRuntime::toSlashClassName(const char* className)
919{
920    char* result = strdup(className);
921    for (char* cp = result; *cp != '\0'; cp++) {
922        if (*cp == '.') {
923            *cp = '/';
924        }
925    }
926    return result;
927}
928
929/** Create a Java string from an ASCII or Latin-1 string */
930jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
931    if (!bytes) return NULL;
932    int length = strlen(bytes);
933    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
934    if (!buffer) return NULL;
935    jchar* chp = buffer;
936    for (int i = 0; i < length; i++) {
937        *chp++ = *bytes++;
938    }
939    return env->NewString(buffer, length);
940}
941
942
943/*
944 * Start the Android runtime.  This involves starting the virtual machine
945 * and calling the "static void main(String[] args)" method in the class
946 * named by "className".
947 *
948 * Passes the main function two arguments, the class name and the specified
949 * options string.
950 */
951void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
952{
953    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
954            className != NULL ? className : "(unknown)", getuid());
955
956    static const String8 startSystemServer("start-system-server");
957
958    /*
959     * 'startSystemServer == true' means runtime is obsolete and not run from
960     * init.rc anymore, so we print out the boot start event here.
961     */
962    for (size_t i = 0; i < options.size(); ++i) {
963        if (options[i] == startSystemServer) {
964           /* track our progress through the boot sequence */
965           const int LOG_BOOT_PROGRESS_START = 3000;
966           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
967        }
968    }
969
970    const char* rootDir = getenv("ANDROID_ROOT");
971    if (rootDir == NULL) {
972        rootDir = "/system";
973        if (!hasDir("/system")) {
974            LOG_FATAL("No root directory specified, and /android does not exist.");
975            return;
976        }
977        setenv("ANDROID_ROOT", rootDir, 1);
978    }
979
980    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
981    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
982
983    /* start the virtual machine */
984    JniInvocation jni_invocation;
985    jni_invocation.Init(NULL);
986    JNIEnv* env;
987    if (startVm(&mJavaVM, &env, zygote) != 0) {
988        return;
989    }
990    onVmCreated(env);
991
992    /*
993     * Register android functions.
994     */
995    if (startReg(env) < 0) {
996        ALOGE("Unable to register all android natives\n");
997        return;
998    }
999
1000    /*
1001     * We want to call main() with a String array with arguments in it.
1002     * At present we have two arguments, the class name and an option string.
1003     * Create an array to hold them.
1004     */
1005    jclass stringClass;
1006    jobjectArray strArray;
1007    jstring classNameStr;
1008
1009    stringClass = env->FindClass("java/lang/String");
1010    assert(stringClass != NULL);
1011    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1012    assert(strArray != NULL);
1013    classNameStr = env->NewStringUTF(className);
1014    assert(classNameStr != NULL);
1015    env->SetObjectArrayElement(strArray, 0, classNameStr);
1016
1017    for (size_t i = 0; i < options.size(); ++i) {
1018        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1019        assert(optionsStr != NULL);
1020        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1021    }
1022
1023    /*
1024     * Start VM.  This thread becomes the main thread of the VM, and will
1025     * not return until the VM exits.
1026     */
1027    char* slashClassName = toSlashClassName(className);
1028    jclass startClass = env->FindClass(slashClassName);
1029    if (startClass == NULL) {
1030        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1031        /* keep going */
1032    } else {
1033        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1034            "([Ljava/lang/String;)V");
1035        if (startMeth == NULL) {
1036            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1037            /* keep going */
1038        } else {
1039            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1040
1041#if 0
1042            if (env->ExceptionCheck())
1043                threadExitUncaughtException(env);
1044#endif
1045        }
1046    }
1047    free(slashClassName);
1048
1049    ALOGD("Shutting down VM\n");
1050    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1051        ALOGW("Warning: unable to detach main thread\n");
1052    if (mJavaVM->DestroyJavaVM() != 0)
1053        ALOGW("Warning: VM did not shut down cleanly\n");
1054}
1055
1056void AndroidRuntime::exit(int code)
1057{
1058    if (mExitWithoutCleanup) {
1059        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1060        ::_exit(code);
1061    } else {
1062        ALOGI("VM exiting with result code %d.", code);
1063        onExit(code);
1064        ::exit(code);
1065    }
1066}
1067
1068void AndroidRuntime::onVmCreated(JNIEnv* env)
1069{
1070    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1071}
1072
1073/*
1074 * Get the JNIEnv pointer for this thread.
1075 *
1076 * Returns NULL if the slot wasn't allocated or populated.
1077 */
1078/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1079{
1080    JNIEnv* env;
1081    JavaVM* vm = AndroidRuntime::getJavaVM();
1082    assert(vm != NULL);
1083
1084    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1085        return NULL;
1086    return env;
1087}
1088
1089/*
1090 * Makes the current thread visible to the VM.
1091 *
1092 * The JNIEnv pointer returned is only valid for the current thread, and
1093 * thus must be tucked into thread-local storage.
1094 */
1095static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1096{
1097    JavaVMAttachArgs args;
1098    JavaVM* vm;
1099    jint result;
1100
1101    vm = AndroidRuntime::getJavaVM();
1102    assert(vm != NULL);
1103
1104    args.version = JNI_VERSION_1_4;
1105    args.name = (char*) threadName;
1106    args.group = NULL;
1107
1108    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1109    if (result != JNI_OK)
1110        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1111
1112    return result;
1113}
1114
1115/*
1116 * Detach the current thread from the set visible to the VM.
1117 */
1118static int javaDetachThread(void)
1119{
1120    JavaVM* vm;
1121    jint result;
1122
1123    vm = AndroidRuntime::getJavaVM();
1124    assert(vm != NULL);
1125
1126    result = vm->DetachCurrentThread();
1127    if (result != JNI_OK)
1128        ALOGE("ERROR: thread detach failed\n");
1129    return result;
1130}
1131
1132/*
1133 * When starting a native thread that will be visible from the VM, we
1134 * bounce through this to get the right attach/detach action.
1135 * Note that this function calls free(args)
1136 */
1137/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1138    void* start = ((void**)args)[0];
1139    void* userData = ((void **)args)[1];
1140    char* name = (char*) ((void **)args)[2];        // we own this storage
1141    free(args);
1142    JNIEnv* env;
1143    int result;
1144
1145    /* hook us into the VM */
1146    if (javaAttachThread(name, &env) != JNI_OK)
1147        return -1;
1148
1149    /* start the thread running */
1150    result = (*(android_thread_func_t)start)(userData);
1151
1152    /* unhook us */
1153    javaDetachThread();
1154    free(name);
1155
1156    return result;
1157}
1158
1159/*
1160 * This is invoked from androidCreateThreadEtc() via the callback
1161 * set with androidSetCreateThreadFunc().
1162 *
1163 * We need to create the new thread in such a way that it gets hooked
1164 * into the VM before it really starts executing.
1165 */
1166/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1167                                android_thread_func_t entryFunction,
1168                                void* userData,
1169                                const char* threadName,
1170                                int32_t threadPriority,
1171                                size_t threadStackSize,
1172                                android_thread_id_t* threadId)
1173{
1174    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1175    int result;
1176
1177    if (!threadName)
1178        threadName = "unnamed thread";
1179
1180    args[0] = (void*) entryFunction;
1181    args[1] = userData;
1182    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1183
1184    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1185        threadName, threadPriority, threadStackSize, threadId);
1186    return result;
1187}
1188
1189/*
1190 * Create a thread that is visible from the VM.
1191 *
1192 * This is called from elsewhere in the library.
1193 */
1194/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1195    void (*start)(void *), void* arg)
1196{
1197    android_thread_id_t threadId = 0;
1198    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1199        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1200    return threadId;
1201}
1202
1203#if 0
1204static void quickTest(void* arg)
1205{
1206    const char* str = (const char*) arg;
1207
1208    printf("In quickTest: %s\n", str);
1209}
1210#endif
1211
1212#ifdef NDEBUG
1213    #define REG_JNI(name)      { name }
1214    struct RegJNIRec {
1215        int (*mProc)(JNIEnv*);
1216    };
1217#else
1218    #define REG_JNI(name)      { name, #name }
1219    struct RegJNIRec {
1220        int (*mProc)(JNIEnv*);
1221        const char* mName;
1222    };
1223#endif
1224
1225typedef void (*RegJAMProc)();
1226
1227static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1228{
1229    for (size_t i = 0; i < count; i++) {
1230        if (array[i].mProc(env) < 0) {
1231#ifndef NDEBUG
1232            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1233#endif
1234            return -1;
1235        }
1236    }
1237    return 0;
1238}
1239
1240static const RegJNIRec gRegJNI[] = {
1241    REG_JNI(register_com_android_internal_os_RuntimeInit),
1242    REG_JNI(register_android_os_SystemClock),
1243    REG_JNI(register_android_util_EventLog),
1244    REG_JNI(register_android_util_Log),
1245    REG_JNI(register_android_content_AssetManager),
1246    REG_JNI(register_android_content_StringBlock),
1247    REG_JNI(register_android_content_XmlBlock),
1248    REG_JNI(register_android_emoji_EmojiFactory),
1249    REG_JNI(register_android_text_AndroidCharacter),
1250    REG_JNI(register_android_text_StaticLayout),
1251    REG_JNI(register_android_text_AndroidBidi),
1252    REG_JNI(register_android_view_InputDevice),
1253    REG_JNI(register_android_view_KeyCharacterMap),
1254    REG_JNI(register_android_os_Process),
1255    REG_JNI(register_android_os_SystemProperties),
1256    REG_JNI(register_android_os_Binder),
1257    REG_JNI(register_android_os_Parcel),
1258    REG_JNI(register_android_nio_utils),
1259    REG_JNI(register_android_graphics_Graphics),
1260    REG_JNI(register_android_view_DisplayEventReceiver),
1261    REG_JNI(register_android_view_RenderNode),
1262    REG_JNI(register_android_view_RenderNodeAnimator),
1263    REG_JNI(register_android_view_GraphicBuffer),
1264    REG_JNI(register_android_view_DisplayListCanvas),
1265    REG_JNI(register_android_view_HardwareLayer),
1266    REG_JNI(register_android_view_ThreadedRenderer),
1267    REG_JNI(register_android_view_Surface),
1268    REG_JNI(register_android_view_SurfaceControl),
1269    REG_JNI(register_android_view_SurfaceSession),
1270    REG_JNI(register_android_view_TextureView),
1271    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1272    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1273    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1274    REG_JNI(register_android_opengl_jni_EGL14),
1275    REG_JNI(register_android_opengl_jni_EGLExt),
1276    REG_JNI(register_android_opengl_jni_GLES10),
1277    REG_JNI(register_android_opengl_jni_GLES10Ext),
1278    REG_JNI(register_android_opengl_jni_GLES11),
1279    REG_JNI(register_android_opengl_jni_GLES11Ext),
1280    REG_JNI(register_android_opengl_jni_GLES20),
1281    REG_JNI(register_android_opengl_jni_GLES30),
1282    REG_JNI(register_android_opengl_jni_GLES31),
1283    REG_JNI(register_android_opengl_jni_GLES31Ext),
1284
1285    REG_JNI(register_android_graphics_Bitmap),
1286    REG_JNI(register_android_graphics_BitmapFactory),
1287    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1288    REG_JNI(register_android_graphics_Camera),
1289    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1290    REG_JNI(register_android_graphics_Canvas),
1291    REG_JNI(register_android_graphics_CanvasProperty),
1292    REG_JNI(register_android_graphics_ColorFilter),
1293    REG_JNI(register_android_graphics_DrawFilter),
1294    REG_JNI(register_android_graphics_FontFamily),
1295    REG_JNI(register_android_graphics_Interpolator),
1296    REG_JNI(register_android_graphics_LayerRasterizer),
1297    REG_JNI(register_android_graphics_MaskFilter),
1298    REG_JNI(register_android_graphics_Matrix),
1299    REG_JNI(register_android_graphics_Movie),
1300    REG_JNI(register_android_graphics_NinePatch),
1301    REG_JNI(register_android_graphics_Paint),
1302    REG_JNI(register_android_graphics_Path),
1303    REG_JNI(register_android_graphics_PathMeasure),
1304    REG_JNI(register_android_graphics_PathEffect),
1305    REG_JNI(register_android_graphics_Picture),
1306    REG_JNI(register_android_graphics_PorterDuff),
1307    REG_JNI(register_android_graphics_Rasterizer),
1308    REG_JNI(register_android_graphics_Region),
1309    REG_JNI(register_android_graphics_Shader),
1310    REG_JNI(register_android_graphics_SurfaceTexture),
1311    REG_JNI(register_android_graphics_Typeface),
1312    REG_JNI(register_android_graphics_Xfermode),
1313    REG_JNI(register_android_graphics_YuvImage),
1314    REG_JNI(register_android_graphics_pdf_PdfDocument),
1315    REG_JNI(register_android_graphics_pdf_PdfEditor),
1316    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1317
1318    REG_JNI(register_android_database_CursorWindow),
1319    REG_JNI(register_android_database_SQLiteConnection),
1320    REG_JNI(register_android_database_SQLiteGlobal),
1321    REG_JNI(register_android_database_SQLiteDebug),
1322    REG_JNI(register_android_os_Debug),
1323    REG_JNI(register_android_os_FileObserver),
1324    REG_JNI(register_android_os_MessageQueue),
1325    REG_JNI(register_android_os_SELinux),
1326    REG_JNI(register_android_os_Trace),
1327    REG_JNI(register_android_os_UEventObserver),
1328    REG_JNI(register_android_net_LocalSocketImpl),
1329    REG_JNI(register_android_net_NetworkUtils),
1330    REG_JNI(register_android_net_TrafficStats),
1331    REG_JNI(register_android_os_MemoryFile),
1332    REG_JNI(register_com_android_internal_os_Zygote),
1333    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1334    REG_JNI(register_android_hardware_Camera),
1335    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1336    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1337    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1338    REG_JNI(register_android_hardware_camera2_DngCreator),
1339    REG_JNI(register_android_hardware_Radio),
1340    REG_JNI(register_android_hardware_SensorManager),
1341    REG_JNI(register_android_hardware_SerialPort),
1342    REG_JNI(register_android_hardware_SoundTrigger),
1343    REG_JNI(register_android_hardware_UsbDevice),
1344    REG_JNI(register_android_hardware_UsbDeviceConnection),
1345    REG_JNI(register_android_hardware_UsbRequest),
1346    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1347    REG_JNI(register_android_media_AudioRecord),
1348    REG_JNI(register_android_media_AudioSystem),
1349    REG_JNI(register_android_media_AudioTrack),
1350    REG_JNI(register_android_media_JetPlayer),
1351    REG_JNI(register_android_media_RemoteDisplay),
1352    REG_JNI(register_android_media_ToneGenerator),
1353
1354    REG_JNI(register_android_opengl_classes),
1355    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1356    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1357    REG_JNI(register_android_backup_BackupDataInput),
1358    REG_JNI(register_android_backup_BackupDataOutput),
1359    REG_JNI(register_android_backup_FileBackupHelperBase),
1360    REG_JNI(register_android_backup_BackupHelperDispatcher),
1361    REG_JNI(register_android_app_backup_FullBackup),
1362    REG_JNI(register_android_app_ApplicationLoaders),
1363    REG_JNI(register_android_app_ActivityThread),
1364    REG_JNI(register_android_app_NativeActivity),
1365    REG_JNI(register_android_util_jar_StrictJarFile),
1366    REG_JNI(register_android_view_InputChannel),
1367    REG_JNI(register_android_view_InputEventReceiver),
1368    REG_JNI(register_android_view_InputEventSender),
1369    REG_JNI(register_android_view_InputQueue),
1370    REG_JNI(register_android_view_KeyEvent),
1371    REG_JNI(register_android_view_MotionEvent),
1372    REG_JNI(register_android_view_PointerIcon),
1373    REG_JNI(register_android_view_VelocityTracker),
1374
1375    REG_JNI(register_android_content_res_ObbScanner),
1376    REG_JNI(register_android_content_res_Configuration),
1377
1378    REG_JNI(register_android_animation_PropertyValuesHolder),
1379    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1380    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1381
1382
1383};
1384
1385/*
1386 * Register android native functions with the VM.
1387 */
1388/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1389{
1390    ATRACE_NAME("RegisterAndroidNatives");
1391    /*
1392     * This hook causes all future threads created in this process to be
1393     * attached to the JavaVM.  (This needs to go away in favor of JNI
1394     * Attach calls.)
1395     */
1396    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1397
1398    ALOGV("--- registering native functions ---\n");
1399
1400    /*
1401     * Every "register" function calls one or more things that return
1402     * a local reference (e.g. FindClass).  Because we haven't really
1403     * started the VM yet, they're all getting stored in the base frame
1404     * and never released.  Use Push/Pop to manage the storage.
1405     */
1406    env->PushLocalFrame(200);
1407
1408    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1409        env->PopLocalFrame(NULL);
1410        return -1;
1411    }
1412    env->PopLocalFrame(NULL);
1413
1414    //createJavaThread("fubar", quickTest, (void*) "hello");
1415
1416    return 0;
1417}
1418
1419AndroidRuntime* AndroidRuntime::getRuntime()
1420{
1421    return gCurRuntime;
1422}
1423
1424/**
1425 * Used by surface flinger's DdmConnection to register native methods from
1426 * the framework.
1427 */
1428extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1429    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1430}
1431}   // namespace android
1432