AndroidRuntime.cpp revision 0de80b9f550fc8ff1f46d5f95cf229745d71eb2a 
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 jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-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    parseRuntimeOption("dalvik.vm.jitprithreadweight",
695                       jitprithreadweightOptBuf,
696                       "-Xjitprithreadweight:");
697
698    property_get("ro.config.low_ram", propBuf, "");
699    if (strcmp(propBuf, "true") == 0) {
700      addOption("-XX:LowMemoryMode");
701    }
702
703    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
704    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
705
706    /*
707     * Enable debugging only for apps forked from zygote.
708     * Set suspend=y to pause during VM init and use android ADB transport.
709     */
710    if (zygote) {
711      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
712    }
713
714    parseRuntimeOption("dalvik.vm.lockprof.threshold",
715                       lockProfThresholdBuf,
716                       "-Xlockprofthreshold:");
717
718    if (executionMode == kEMIntPortable) {
719        addOption("-Xint:portable");
720    } else if (executionMode == kEMIntFast) {
721        addOption("-Xint:fast");
722    } else if (executionMode == kEMJitCompiler) {
723        addOption("-Xint:jit");
724    }
725
726    // If we are booting without the real /data, don't spend time compiling.
727    property_get("vold.decrypt", voldDecryptBuf, "");
728    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
729                             (strcmp(voldDecryptBuf, "1") == 0));
730
731    // Extra options for boot.art/boot.oat image generation.
732    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
733                               "-Xms", "-Ximage-compiler-option");
734    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
735                               "-Xmx", "-Ximage-compiler-option");
736    if (skip_compilation) {
737        addOption("-Ximage-compiler-option");
738        addOption("--compiler-filter=verify-none");
739    } else {
740        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
741                            "--compiler-filter=", "-Ximage-compiler-option");
742    }
743
744    // Make sure there is a preloaded-classes file.
745    if (!hasFile("/system/etc/preloaded-classes")) {
746        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
747              strerror(errno));
748        return -1;
749    }
750    addOption("-Ximage-compiler-option");
751    addOption("--image-classes=/system/etc/preloaded-classes");
752
753    // If there is a compiled-classes file, push it.
754    if (hasFile("/system/etc/compiled-classes")) {
755        addOption("-Ximage-compiler-option");
756        addOption("--compiled-classes=/system/etc/compiled-classes");
757    }
758
759    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
760    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
761
762    // Extra options for DexClassLoader.
763    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
764                               "-Xms", "-Xcompiler-option");
765    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
766                               "-Xmx", "-Xcompiler-option");
767    if (skip_compilation) {
768        addOption("-Xcompiler-option");
769        addOption("--compiler-filter=verify-none");
770
771        // We skip compilation when a minimal runtime is brought up for decryption. In that case
772        // /data is temporarily backed by a tmpfs, which is usually small.
773        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
774        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
775        // directly instead.
776        addOption("--runtime-arg");
777        addOption("-Xnorelocate");
778    } else {
779        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
780                            "--compiler-filter=", "-Xcompiler-option");
781    }
782    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
783    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
784                        "-Ximage-compiler-option");
785
786    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
787    // pass the instruction-set-features/variant as an image-compiler-option.
788    // TODO: Find a better way for the instruction-set.
789#if defined(__arm__)
790    constexpr const char* instruction_set = "arm";
791#elif defined(__aarch64__)
792    constexpr const char* instruction_set = "arm64";
793#elif defined(__mips__) && !defined(__LP64__)
794    constexpr const char* instruction_set = "mips";
795#elif defined(__mips__) && defined(__LP64__)
796    constexpr const char* instruction_set = "mips64";
797#elif defined(__i386__)
798    constexpr const char* instruction_set = "x86";
799#elif defined(__x86_64__)
800    constexpr const char* instruction_set = "x86_64";
801#else
802    constexpr const char* instruction_set = "unknown";
803#endif
804    // Note: it is OK to reuse the buffer, as the values are exactly the same between
805    //       * compiler-option, used for runtime compilation (DexClassLoader)
806    //       * image-compiler-option, used for boot-image compilation on device
807
808    // Copy the variant.
809    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
810    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
811                        "--instruction-set-variant=", "-Ximage-compiler-option");
812    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
813                        "--instruction-set-variant=", "-Xcompiler-option");
814    // Copy the features.
815    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
816    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
817                        "--instruction-set-features=", "-Ximage-compiler-option");
818    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
819                        "--instruction-set-features=", "-Xcompiler-option");
820
821
822    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
823    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
824
825    /* extra options; parse this late so it overrides others */
826    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
827    parseExtraOpts(extraOptsBuf, NULL);
828
829    /* Set the properties for locale */
830    {
831        strcpy(localeOption, "-Duser.locale=");
832        const std::string locale = readLocale();
833        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
834        addOption(localeOption);
835    }
836
837    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
838    property_get("ro.debuggable", propBuf, "0");
839    if (strcmp(propBuf, "1") == 0) {
840        property_get("dalvik.vm.method-trace", propBuf, "false");
841        if (strcmp(propBuf, "true") == 0) {
842            addOption("-Xmethod-trace");
843            parseRuntimeOption("dalvik.vm.method-trace-file",
844                               methodTraceFileBuf,
845                               "-Xmethod-trace-file:");
846            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
847                               methodTraceFileSizeBuf,
848                               "-Xmethod-trace-file-size:");
849            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
850            if (strcmp(propBuf, "true") == 0) {
851                addOption("-Xmethod-trace-stream");
852            }
853        }
854    }
855
856    // Native bridge library. "0" means that native bridge is disabled.
857    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
858    if (propBuf[0] == '\0') {
859        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
860    } else if (strcmp(propBuf, "0") != 0) {
861        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
862                 "-XX:NativeBridge=%s", propBuf);
863        addOption(nativeBridgeLibrary);
864    }
865
866#if defined(__LP64__)
867    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
868#else
869    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
870#endif  // defined(__LP64__)
871    property_get(cpu_abilist_property_name, propBuf, "");
872    if (propBuf[0] == '\0') {
873        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
874        return -1;
875    }
876    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
877    addOption(cpuAbiListBuf);
878
879    // Dalvik-cache pruning counter.
880    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
881                       "-Xzygote-max-boot-retry=");
882
883    /*
884     * When running with debug.generate-debug-info, add --generate-debug-info to
885     * the compiler options so that the boot image, if it is compiled on device,
886     * will include native debugging information.
887     */
888    property_get("debug.generate-debug-info", propBuf, "");
889    if (strcmp(propBuf, "true") == 0) {
890        addOption("-Xcompiler-option");
891        addOption("--generate-debug-info");
892        addOption("-Ximage-compiler-option");
893        addOption("--generate-debug-info");
894    }
895
896    /*
897     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
898     * contain the fingerprint and can be parsed.
899     */
900    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
901
902    initArgs.version = JNI_VERSION_1_4;
903    initArgs.options = mOptions.editArray();
904    initArgs.nOptions = mOptions.size();
905    initArgs.ignoreUnrecognized = JNI_FALSE;
906
907    /*
908     * Initialize the VM.
909     *
910     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
911     * If this call succeeds, the VM is ready, and we can start issuing
912     * JNI calls.
913     */
914    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
915        ALOGE("JNI_CreateJavaVM failed\n");
916        return -1;
917    }
918
919    return 0;
920}
921
922char* AndroidRuntime::toSlashClassName(const char* className)
923{
924    char* result = strdup(className);
925    for (char* cp = result; *cp != '\0'; cp++) {
926        if (*cp == '.') {
927            *cp = '/';
928        }
929    }
930    return result;
931}
932
933/** Create a Java string from an ASCII or Latin-1 string */
934jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
935    if (!bytes) return NULL;
936    int length = strlen(bytes);
937    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
938    if (!buffer) return NULL;
939    jchar* chp = buffer;
940    for (int i = 0; i < length; i++) {
941        *chp++ = *bytes++;
942    }
943    return env->NewString(buffer, length);
944}
945
946
947/*
948 * Start the Android runtime.  This involves starting the virtual machine
949 * and calling the "static void main(String[] args)" method in the class
950 * named by "className".
951 *
952 * Passes the main function two arguments, the class name and the specified
953 * options string.
954 */
955void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
956{
957    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
958            className != NULL ? className : "(unknown)", getuid());
959
960    static const String8 startSystemServer("start-system-server");
961
962    /*
963     * 'startSystemServer == true' means runtime is obsolete and not run from
964     * init.rc anymore, so we print out the boot start event here.
965     */
966    for (size_t i = 0; i < options.size(); ++i) {
967        if (options[i] == startSystemServer) {
968           /* track our progress through the boot sequence */
969           const int LOG_BOOT_PROGRESS_START = 3000;
970           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
971        }
972    }
973
974    const char* rootDir = getenv("ANDROID_ROOT");
975    if (rootDir == NULL) {
976        rootDir = "/system";
977        if (!hasDir("/system")) {
978            LOG_FATAL("No root directory specified, and /android does not exist.");
979            return;
980        }
981        setenv("ANDROID_ROOT", rootDir, 1);
982    }
983
984    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
985    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
986
987    /* start the virtual machine */
988    JniInvocation jni_invocation;
989    jni_invocation.Init(NULL);
990    JNIEnv* env;
991    if (startVm(&mJavaVM, &env, zygote) != 0) {
992        return;
993    }
994    onVmCreated(env);
995
996    /*
997     * Register android functions.
998     */
999    if (startReg(env) < 0) {
1000        ALOGE("Unable to register all android natives\n");
1001        return;
1002    }
1003
1004    /*
1005     * We want to call main() with a String array with arguments in it.
1006     * At present we have two arguments, the class name and an option string.
1007     * Create an array to hold them.
1008     */
1009    jclass stringClass;
1010    jobjectArray strArray;
1011    jstring classNameStr;
1012
1013    stringClass = env->FindClass("java/lang/String");
1014    assert(stringClass != NULL);
1015    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1016    assert(strArray != NULL);
1017    classNameStr = env->NewStringUTF(className);
1018    assert(classNameStr != NULL);
1019    env->SetObjectArrayElement(strArray, 0, classNameStr);
1020
1021    for (size_t i = 0; i < options.size(); ++i) {
1022        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1023        assert(optionsStr != NULL);
1024        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1025    }
1026
1027    /*
1028     * Start VM.  This thread becomes the main thread of the VM, and will
1029     * not return until the VM exits.
1030     */
1031    char* slashClassName = toSlashClassName(className);
1032    jclass startClass = env->FindClass(slashClassName);
1033    if (startClass == NULL) {
1034        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1035        /* keep going */
1036    } else {
1037        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1038            "([Ljava/lang/String;)V");
1039        if (startMeth == NULL) {
1040            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1041            /* keep going */
1042        } else {
1043            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1044
1045#if 0
1046            if (env->ExceptionCheck())
1047                threadExitUncaughtException(env);
1048#endif
1049        }
1050    }
1051    free(slashClassName);
1052
1053    ALOGD("Shutting down VM\n");
1054    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1055        ALOGW("Warning: unable to detach main thread\n");
1056    if (mJavaVM->DestroyJavaVM() != 0)
1057        ALOGW("Warning: VM did not shut down cleanly\n");
1058}
1059
1060void AndroidRuntime::exit(int code)
1061{
1062    if (mExitWithoutCleanup) {
1063        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1064        ::_exit(code);
1065    } else {
1066        ALOGI("VM exiting with result code %d.", code);
1067        onExit(code);
1068        ::exit(code);
1069    }
1070}
1071
1072void AndroidRuntime::onVmCreated(JNIEnv* env)
1073{
1074    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1075}
1076
1077/*
1078 * Get the JNIEnv pointer for this thread.
1079 *
1080 * Returns NULL if the slot wasn't allocated or populated.
1081 */
1082/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1083{
1084    JNIEnv* env;
1085    JavaVM* vm = AndroidRuntime::getJavaVM();
1086    assert(vm != NULL);
1087
1088    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1089        return NULL;
1090    return env;
1091}
1092
1093/*
1094 * Makes the current thread visible to the VM.
1095 *
1096 * The JNIEnv pointer returned is only valid for the current thread, and
1097 * thus must be tucked into thread-local storage.
1098 */
1099static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1100{
1101    JavaVMAttachArgs args;
1102    JavaVM* vm;
1103    jint result;
1104
1105    vm = AndroidRuntime::getJavaVM();
1106    assert(vm != NULL);
1107
1108    args.version = JNI_VERSION_1_4;
1109    args.name = (char*) threadName;
1110    args.group = NULL;
1111
1112    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1113    if (result != JNI_OK)
1114        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1115
1116    return result;
1117}
1118
1119/*
1120 * Detach the current thread from the set visible to the VM.
1121 */
1122static int javaDetachThread(void)
1123{
1124    JavaVM* vm;
1125    jint result;
1126
1127    vm = AndroidRuntime::getJavaVM();
1128    assert(vm != NULL);
1129
1130    result = vm->DetachCurrentThread();
1131    if (result != JNI_OK)
1132        ALOGE("ERROR: thread detach failed\n");
1133    return result;
1134}
1135
1136/*
1137 * When starting a native thread that will be visible from the VM, we
1138 * bounce through this to get the right attach/detach action.
1139 * Note that this function calls free(args)
1140 */
1141/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1142    void* start = ((void**)args)[0];
1143    void* userData = ((void **)args)[1];
1144    char* name = (char*) ((void **)args)[2];        // we own this storage
1145    free(args);
1146    JNIEnv* env;
1147    int result;
1148
1149    /* hook us into the VM */
1150    if (javaAttachThread(name, &env) != JNI_OK)
1151        return -1;
1152
1153    /* start the thread running */
1154    result = (*(android_thread_func_t)start)(userData);
1155
1156    /* unhook us */
1157    javaDetachThread();
1158    free(name);
1159
1160    return result;
1161}
1162
1163/*
1164 * This is invoked from androidCreateThreadEtc() via the callback
1165 * set with androidSetCreateThreadFunc().
1166 *
1167 * We need to create the new thread in such a way that it gets hooked
1168 * into the VM before it really starts executing.
1169 */
1170/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1171                                android_thread_func_t entryFunction,
1172                                void* userData,
1173                                const char* threadName,
1174                                int32_t threadPriority,
1175                                size_t threadStackSize,
1176                                android_thread_id_t* threadId)
1177{
1178    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1179    int result;
1180
1181    if (!threadName)
1182        threadName = "unnamed thread";
1183
1184    args[0] = (void*) entryFunction;
1185    args[1] = userData;
1186    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1187
1188    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1189        threadName, threadPriority, threadStackSize, threadId);
1190    return result;
1191}
1192
1193/*
1194 * Create a thread that is visible from the VM.
1195 *
1196 * This is called from elsewhere in the library.
1197 */
1198/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1199    void (*start)(void *), void* arg)
1200{
1201    android_thread_id_t threadId = 0;
1202    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1203        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1204    return threadId;
1205}
1206
1207#if 0
1208static void quickTest(void* arg)
1209{
1210    const char* str = (const char*) arg;
1211
1212    printf("In quickTest: %s\n", str);
1213}
1214#endif
1215
1216#ifdef NDEBUG
1217    #define REG_JNI(name)      { name }
1218    struct RegJNIRec {
1219        int (*mProc)(JNIEnv*);
1220    };
1221#else
1222    #define REG_JNI(name)      { name, #name }
1223    struct RegJNIRec {
1224        int (*mProc)(JNIEnv*);
1225        const char* mName;
1226    };
1227#endif
1228
1229typedef void (*RegJAMProc)();
1230
1231static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1232{
1233    for (size_t i = 0; i < count; i++) {
1234        if (array[i].mProc(env) < 0) {
1235#ifndef NDEBUG
1236            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1237#endif
1238            return -1;
1239        }
1240    }
1241    return 0;
1242}
1243
1244static const RegJNIRec gRegJNI[] = {
1245    REG_JNI(register_com_android_internal_os_RuntimeInit),
1246    REG_JNI(register_android_os_SystemClock),
1247    REG_JNI(register_android_util_EventLog),
1248    REG_JNI(register_android_util_Log),
1249    REG_JNI(register_android_content_AssetManager),
1250    REG_JNI(register_android_content_StringBlock),
1251    REG_JNI(register_android_content_XmlBlock),
1252    REG_JNI(register_android_emoji_EmojiFactory),
1253    REG_JNI(register_android_text_AndroidCharacter),
1254    REG_JNI(register_android_text_StaticLayout),
1255    REG_JNI(register_android_text_AndroidBidi),
1256    REG_JNI(register_android_view_InputDevice),
1257    REG_JNI(register_android_view_KeyCharacterMap),
1258    REG_JNI(register_android_os_Process),
1259    REG_JNI(register_android_os_SystemProperties),
1260    REG_JNI(register_android_os_Binder),
1261    REG_JNI(register_android_os_Parcel),
1262    REG_JNI(register_android_nio_utils),
1263    REG_JNI(register_android_graphics_Graphics),
1264    REG_JNI(register_android_view_DisplayEventReceiver),
1265    REG_JNI(register_android_view_RenderNode),
1266    REG_JNI(register_android_view_RenderNodeAnimator),
1267    REG_JNI(register_android_view_GraphicBuffer),
1268    REG_JNI(register_android_view_DisplayListCanvas),
1269    REG_JNI(register_android_view_HardwareLayer),
1270    REG_JNI(register_android_view_ThreadedRenderer),
1271    REG_JNI(register_android_view_Surface),
1272    REG_JNI(register_android_view_SurfaceControl),
1273    REG_JNI(register_android_view_SurfaceSession),
1274    REG_JNI(register_android_view_TextureView),
1275    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1276    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1277    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1278    REG_JNI(register_android_opengl_jni_EGL14),
1279    REG_JNI(register_android_opengl_jni_EGLExt),
1280    REG_JNI(register_android_opengl_jni_GLES10),
1281    REG_JNI(register_android_opengl_jni_GLES10Ext),
1282    REG_JNI(register_android_opengl_jni_GLES11),
1283    REG_JNI(register_android_opengl_jni_GLES11Ext),
1284    REG_JNI(register_android_opengl_jni_GLES20),
1285    REG_JNI(register_android_opengl_jni_GLES30),
1286    REG_JNI(register_android_opengl_jni_GLES31),
1287    REG_JNI(register_android_opengl_jni_GLES31Ext),
1288
1289    REG_JNI(register_android_graphics_Bitmap),
1290    REG_JNI(register_android_graphics_BitmapFactory),
1291    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1292    REG_JNI(register_android_graphics_Camera),
1293    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1294    REG_JNI(register_android_graphics_Canvas),
1295    REG_JNI(register_android_graphics_CanvasProperty),
1296    REG_JNI(register_android_graphics_ColorFilter),
1297    REG_JNI(register_android_graphics_DrawFilter),
1298    REG_JNI(register_android_graphics_FontFamily),
1299    REG_JNI(register_android_graphics_Interpolator),
1300    REG_JNI(register_android_graphics_LayerRasterizer),
1301    REG_JNI(register_android_graphics_MaskFilter),
1302    REG_JNI(register_android_graphics_Matrix),
1303    REG_JNI(register_android_graphics_Movie),
1304    REG_JNI(register_android_graphics_NinePatch),
1305    REG_JNI(register_android_graphics_Paint),
1306    REG_JNI(register_android_graphics_Path),
1307    REG_JNI(register_android_graphics_PathMeasure),
1308    REG_JNI(register_android_graphics_PathEffect),
1309    REG_JNI(register_android_graphics_Picture),
1310    REG_JNI(register_android_graphics_PorterDuff),
1311    REG_JNI(register_android_graphics_Rasterizer),
1312    REG_JNI(register_android_graphics_Region),
1313    REG_JNI(register_android_graphics_Shader),
1314    REG_JNI(register_android_graphics_SurfaceTexture),
1315    REG_JNI(register_android_graphics_Typeface),
1316    REG_JNI(register_android_graphics_Xfermode),
1317    REG_JNI(register_android_graphics_YuvImage),
1318    REG_JNI(register_android_graphics_pdf_PdfDocument),
1319    REG_JNI(register_android_graphics_pdf_PdfEditor),
1320    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1321
1322    REG_JNI(register_android_database_CursorWindow),
1323    REG_JNI(register_android_database_SQLiteConnection),
1324    REG_JNI(register_android_database_SQLiteGlobal),
1325    REG_JNI(register_android_database_SQLiteDebug),
1326    REG_JNI(register_android_os_Debug),
1327    REG_JNI(register_android_os_FileObserver),
1328    REG_JNI(register_android_os_MessageQueue),
1329    REG_JNI(register_android_os_SELinux),
1330    REG_JNI(register_android_os_Trace),
1331    REG_JNI(register_android_os_UEventObserver),
1332    REG_JNI(register_android_net_LocalSocketImpl),
1333    REG_JNI(register_android_net_NetworkUtils),
1334    REG_JNI(register_android_net_TrafficStats),
1335    REG_JNI(register_android_os_MemoryFile),
1336    REG_JNI(register_com_android_internal_os_Zygote),
1337    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1338    REG_JNI(register_android_hardware_Camera),
1339    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1340    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1341    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1342    REG_JNI(register_android_hardware_camera2_DngCreator),
1343    REG_JNI(register_android_hardware_Radio),
1344    REG_JNI(register_android_hardware_SensorManager),
1345    REG_JNI(register_android_hardware_SerialPort),
1346    REG_JNI(register_android_hardware_SoundTrigger),
1347    REG_JNI(register_android_hardware_UsbDevice),
1348    REG_JNI(register_android_hardware_UsbDeviceConnection),
1349    REG_JNI(register_android_hardware_UsbRequest),
1350    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1351    REG_JNI(register_android_media_AudioRecord),
1352    REG_JNI(register_android_media_AudioSystem),
1353    REG_JNI(register_android_media_AudioTrack),
1354    REG_JNI(register_android_media_JetPlayer),
1355    REG_JNI(register_android_media_RemoteDisplay),
1356    REG_JNI(register_android_media_ToneGenerator),
1357
1358    REG_JNI(register_android_opengl_classes),
1359    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1360    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1361    REG_JNI(register_android_backup_BackupDataInput),
1362    REG_JNI(register_android_backup_BackupDataOutput),
1363    REG_JNI(register_android_backup_FileBackupHelperBase),
1364    REG_JNI(register_android_backup_BackupHelperDispatcher),
1365    REG_JNI(register_android_app_backup_FullBackup),
1366    REG_JNI(register_android_app_ApplicationLoaders),
1367    REG_JNI(register_android_app_ActivityThread),
1368    REG_JNI(register_android_app_NativeActivity),
1369    REG_JNI(register_android_util_jar_StrictJarFile),
1370    REG_JNI(register_android_view_InputChannel),
1371    REG_JNI(register_android_view_InputEventReceiver),
1372    REG_JNI(register_android_view_InputEventSender),
1373    REG_JNI(register_android_view_InputQueue),
1374    REG_JNI(register_android_view_KeyEvent),
1375    REG_JNI(register_android_view_MotionEvent),
1376    REG_JNI(register_android_view_PointerIcon),
1377    REG_JNI(register_android_view_VelocityTracker),
1378
1379    REG_JNI(register_android_content_res_ObbScanner),
1380    REG_JNI(register_android_content_res_Configuration),
1381
1382    REG_JNI(register_android_animation_PropertyValuesHolder),
1383    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1384    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1385
1386
1387};
1388
1389/*
1390 * Register android native functions with the VM.
1391 */
1392/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1393{
1394    ATRACE_NAME("RegisterAndroidNatives");
1395    /*
1396     * This hook causes all future threads created in this process to be
1397     * attached to the JavaVM.  (This needs to go away in favor of JNI
1398     * Attach calls.)
1399     */
1400    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1401
1402    ALOGV("--- registering native functions ---\n");
1403
1404    /*
1405     * Every "register" function calls one or more things that return
1406     * a local reference (e.g. FindClass).  Because we haven't really
1407     * started the VM yet, they're all getting stored in the base frame
1408     * and never released.  Use Push/Pop to manage the storage.
1409     */
1410    env->PushLocalFrame(200);
1411
1412    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1413        env->PopLocalFrame(NULL);
1414        return -1;
1415    }
1416    env->PopLocalFrame(NULL);
1417
1418    //createJavaThread("fubar", quickTest, (void*) "hello");
1419
1420    return 0;
1421}
1422
1423AndroidRuntime* AndroidRuntime::getRuntime()
1424{
1425    return gCurRuntime;
1426}
1427
1428/**
1429 * Used by surface flinger's DdmConnection to register native methods from
1430 * the framework.
1431 */
1432extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1433    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1434}
1435}   // namespace android
1436