AndroidRuntime.cpp revision 900fe2410ddfdaa7be71d41335b73dc2c1c7858e 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define ATRACE_TAG ATRACE_TAG_DALVIK
18#define LOG_TAG "AndroidRuntime"
19//#define LOG_NDEBUG 0
20
21#include <android_runtime/AndroidRuntime.h>
22#include <binder/IBinder.h>
23#include <binder/IPCThreadState.h>
24#include <binder/IServiceManager.h>
25#include <utils/Log.h>
26#include <utils/misc.h>
27#include <utils/Trace.h>
28#include <binder/Parcel.h>
29#include <utils/threads.h>
30#include <cutils/properties.h>
31
32#include <SkGraphics.h>
33#include <SkImageDecoder.h>
34
35#include "jni.h"
36#include "JNIHelp.h"
37#include "JniInvocation.h"
38#include "android_util_Binder.h"
39
40#include <stdio.h>
41#include <signal.h>
42#include <sys/stat.h>
43#include <sys/types.h>
44#include <signal.h>
45#include <dirent.h>
46#include <assert.h>
47
48#include <string>
49#include <vector>
50
51
52using namespace android;
53
54extern int register_android_os_Binder(JNIEnv* env);
55extern int register_android_os_Process(JNIEnv* env);
56extern int register_android_graphics_Bitmap(JNIEnv*);
57extern int register_android_graphics_BitmapFactory(JNIEnv*);
58extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
59extern int register_android_graphics_Camera(JNIEnv* env);
60extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
61extern int register_android_graphics_Graphics(JNIEnv* env);
62extern int register_android_graphics_Interpolator(JNIEnv* env);
63extern int register_android_graphics_MaskFilter(JNIEnv* env);
64extern int register_android_graphics_Movie(JNIEnv* env);
65extern int register_android_graphics_NinePatch(JNIEnv*);
66extern int register_android_graphics_PathEffect(JNIEnv* env);
67extern int register_android_graphics_Shader(JNIEnv* env);
68extern int register_android_graphics_Typeface(JNIEnv* env);
69extern int register_android_graphics_YuvImage(JNIEnv* env);
70
71extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
72extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
73extern int register_android_opengl_jni_EGL14(JNIEnv* env);
74extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
75extern int register_android_opengl_jni_GLES10(JNIEnv* env);
76extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
77extern int register_android_opengl_jni_GLES11(JNIEnv* env);
78extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
79extern int register_android_opengl_jni_GLES20(JNIEnv* env);
80extern int register_android_opengl_jni_GLES30(JNIEnv* env);
81extern int register_android_opengl_jni_GLES31(JNIEnv* env);
82extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
83extern int register_android_opengl_jni_GLES32(JNIEnv* env);
84
85extern int register_android_hardware_Camera(JNIEnv *env);
86extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
87extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env);
88extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env);
89extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
90extern int register_android_hardware_Radio(JNIEnv *env);
91extern int register_android_hardware_SensorManager(JNIEnv *env);
92extern int register_android_hardware_SerialPort(JNIEnv *env);
93extern int register_android_hardware_SoundTrigger(JNIEnv *env);
94extern int register_android_hardware_UsbDevice(JNIEnv *env);
95extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
96extern int register_android_hardware_UsbRequest(JNIEnv *env);
97extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
98
99extern int register_android_media_AudioRecord(JNIEnv *env);
100extern int register_android_media_AudioSystem(JNIEnv *env);
101extern int register_android_media_AudioTrack(JNIEnv *env);
102extern int register_android_media_JetPlayer(JNIEnv *env);
103extern int register_android_media_ToneGenerator(JNIEnv *env);
104
105namespace android {
106
107/*
108 * JNI-based registration functions.  Note these are properly contained in
109 * namespace android.
110 */
111extern int register_android_auditing_SecurityLog(JNIEnv* env);
112extern int register_android_content_AssetManager(JNIEnv* env);
113extern int register_android_util_EventLog(JNIEnv* env);
114extern int register_android_util_Log(JNIEnv* env);
115extern int register_android_util_PathParser(JNIEnv* env);
116extern int register_android_content_StringBlock(JNIEnv* env);
117extern int register_android_content_XmlBlock(JNIEnv* env);
118extern int register_android_graphics_Canvas(JNIEnv* env);
119extern int register_android_graphics_CanvasProperty(JNIEnv* env);
120extern int register_android_graphics_ColorFilter(JNIEnv* env);
121extern int register_android_graphics_DrawFilter(JNIEnv* env);
122extern int register_android_graphics_FontFamily(JNIEnv* env);
123extern int register_android_graphics_LayerRasterizer(JNIEnv*);
124extern int register_android_graphics_Matrix(JNIEnv* env);
125extern int register_android_graphics_Paint(JNIEnv* env);
126extern int register_android_graphics_Path(JNIEnv* env);
127extern int register_android_graphics_PathMeasure(JNIEnv* env);
128extern int register_android_graphics_Picture(JNIEnv*);
129extern int register_android_graphics_PorterDuff(JNIEnv* env);
130extern int register_android_graphics_Rasterizer(JNIEnv* env);
131extern int register_android_graphics_Region(JNIEnv* env);
132extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
133extern int register_android_graphics_Xfermode(JNIEnv* env);
134extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
135extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
136extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
137extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
138extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
139extern int register_android_view_DisplayListCanvas(JNIEnv* env);
140extern int register_android_view_GraphicBuffer(JNIEnv* env);
141extern int register_android_view_HardwareLayer(JNIEnv* env);
142extern int register_android_view_RenderNode(JNIEnv* env);
143extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
144extern int register_android_view_Surface(JNIEnv* env);
145extern int register_android_view_SurfaceControl(JNIEnv* env);
146extern int register_android_view_SurfaceSession(JNIEnv* env);
147extern int register_android_view_TextureView(JNIEnv* env);
148extern int register_android_view_ThreadedRenderer(JNIEnv* env);
149extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
150extern int register_android_database_CursorWindow(JNIEnv* env);
151extern int register_android_database_SQLiteConnection(JNIEnv* env);
152extern int register_android_database_SQLiteGlobal(JNIEnv* env);
153extern int register_android_database_SQLiteDebug(JNIEnv* env);
154extern int register_android_nio_utils(JNIEnv* env);
155extern int register_android_os_Debug(JNIEnv* env);
156extern int register_android_os_MessageQueue(JNIEnv* env);
157extern int register_android_os_Parcel(JNIEnv* env);
158extern int register_android_os_SELinux(JNIEnv* env);
159extern int register_android_os_SystemProperties(JNIEnv *env);
160extern int register_android_os_SystemClock(JNIEnv* env);
161extern int register_android_os_Trace(JNIEnv* env);
162extern int register_android_os_FileObserver(JNIEnv *env);
163extern int register_android_os_UEventObserver(JNIEnv* env);
164extern int register_android_os_MemoryFile(JNIEnv* env);
165extern int register_android_net_LocalSocketImpl(JNIEnv* env);
166extern int register_android_net_NetworkUtils(JNIEnv* env);
167extern int register_android_net_TrafficStats(JNIEnv* env);
168extern int register_android_text_AndroidCharacter(JNIEnv *env);
169extern int register_android_text_StaticLayout(JNIEnv *env);
170extern int register_android_text_AndroidBidi(JNIEnv *env);
171extern int register_android_opengl_classes(JNIEnv *env);
172extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
173extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
174extern int register_android_backup_BackupDataInput(JNIEnv *env);
175extern int register_android_backup_BackupDataOutput(JNIEnv *env);
176extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
177extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
178extern int register_android_app_backup_FullBackup(JNIEnv *env);
179extern int register_android_app_ActivityThread(JNIEnv *env);
180extern int register_android_app_NativeActivity(JNIEnv *env);
181extern int register_android_media_RemoteDisplay(JNIEnv *env);
182extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
183extern int register_android_view_InputChannel(JNIEnv* env);
184extern int register_android_view_InputDevice(JNIEnv* env);
185extern int register_android_view_InputEventReceiver(JNIEnv* env);
186extern int register_android_view_InputEventSender(JNIEnv* env);
187extern int register_android_view_InputQueue(JNIEnv* env);
188extern int register_android_view_KeyCharacterMap(JNIEnv *env);
189extern int register_android_view_KeyEvent(JNIEnv* env);
190extern int register_android_view_MotionEvent(JNIEnv* env);
191extern int register_android_view_PointerIcon(JNIEnv* env);
192extern int register_android_view_VelocityTracker(JNIEnv* env);
193extern int register_android_content_res_ObbScanner(JNIEnv* env);
194extern int register_android_content_res_Configuration(JNIEnv* env);
195extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
196extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
197extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
198extern int register_com_android_internal_os_Zygote(JNIEnv *env);
199extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
200
201static AndroidRuntime* gCurRuntime = NULL;
202
203/*
204 * Code written in the Java Programming Language calls here from main().
205 */
206static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
207{
208    gCurRuntime->onStarted();
209}
210
211static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
212{
213    gCurRuntime->onZygoteInit();
214}
215
216static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
217        jobject clazz, jboolean exitWithoutCleanup)
218{
219    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
220}
221
222/*
223 * JNI registration.
224 */
225static const JNINativeMethod gMethods[] = {
226    { "nativeFinishInit", "()V",
227        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
228    { "nativeZygoteInit", "()V",
229        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
230    { "nativeSetExitWithoutCleanup", "(Z)V",
231        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
232};
233
234int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
235{
236    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
237        gMethods, NELEM(gMethods));
238}
239
240// ----------------------------------------------------------------------
241
242/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
243
244AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
245        mExitWithoutCleanup(false),
246        mArgBlockStart(argBlockStart),
247        mArgBlockLength(argBlockLength)
248{
249    SkGraphics::Init();
250    // There is also a global font cache, but its budget is specified by
251    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
252
253    // Pre-allocate enough space to hold a fair number of options.
254    mOptions.setCapacity(20);
255
256    assert(gCurRuntime == NULL);        // one per process
257    gCurRuntime = this;
258}
259
260AndroidRuntime::~AndroidRuntime()
261{
262    SkGraphics::Term();
263}
264
265/*
266 * Register native methods using JNI.
267 */
268/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
269    const char* className, const JNINativeMethod* gMethods, int numMethods)
270{
271    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
272}
273
274void AndroidRuntime::setArgv0(const char* argv0) {
275    memset(mArgBlockStart, 0, mArgBlockLength);
276    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
277}
278
279status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
280    const Vector<String8>& args)
281{
282    JNIEnv* env;
283    jmethodID methodId;
284
285    ALOGD("Calling main entry %s", className.string());
286
287    env = getJNIEnv();
288    if (clazz == NULL || env == NULL) {
289        return UNKNOWN_ERROR;
290    }
291
292    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
293    if (methodId == NULL) {
294        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
295        return UNKNOWN_ERROR;
296    }
297
298    /*
299     * We want to call main() with a String array with our arguments in it.
300     * Create an array and populate it.
301     */
302    jclass stringClass;
303    jobjectArray strArray;
304
305    const size_t numArgs = args.size();
306    stringClass = env->FindClass("java/lang/String");
307    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
308
309    for (size_t i = 0; i < numArgs; i++) {
310        jstring argStr = env->NewStringUTF(args[i].string());
311        env->SetObjectArrayElement(strArray, i, argStr);
312    }
313
314    env->CallStaticVoidMethod(clazz, methodId, strArray);
315    return NO_ERROR;
316}
317
318/*
319 * The VM calls this through the "exit" hook.
320 */
321static void runtime_exit(int code)
322{
323    gCurRuntime->exit(code);
324}
325
326/*
327 * The VM calls this through the "vfprintf" hook.
328 *
329 * We ignore "fp" and just write the results to the log file.
330 */
331static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
332{
333    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
334}
335
336/**
337 * The VM calls this when mutex contention debugging is enabled to
338 * determine whether or not the blocked thread was a "sensitive thread"
339 * for user responsiveness/smoothess.
340 *
341 * Our policy for this is whether or not we're tracing any StrictMode
342 * events on this thread (which we might've inherited via Binder calls
343 * into us)
344 */
345static bool runtime_isSensitiveThread() {
346    IPCThreadState* state = IPCThreadState::selfOrNull();
347    return state && state->getStrictModePolicy() != 0;
348}
349
350static int hasDir(const char* dir)
351{
352    struct stat s;
353    int res = stat(dir, &s);
354    if (res == 0) {
355        return S_ISDIR(s.st_mode);
356    }
357    return 0;
358}
359
360static bool hasFile(const char* file) {
361    struct stat s;
362    int res = stat(file, &s);
363    if (res == 0) {
364        return S_ISREG(s.st_mode);
365    }
366    return false;
367}
368
369// Convenience wrapper over the property API that returns an
370// std::string.
371std::string getProperty(const char* key, const char* defaultValue) {
372    std::vector<char> temp(PROPERTY_VALUE_MAX);
373    const int len = property_get(key, &temp[0], defaultValue);
374    if (len < 0) {
375        return "";
376    }
377    return std::string(&temp[0], len);
378}
379
380/*
381 * Read the persistent locale. Inspects the following system properties
382 * (in order) and returns the first non-empty property in the list :
383 *
384 * (1) persist.sys.locale
385 * (2) persist.sys.language/country/localevar (country and localevar are
386 * inspected iff. language is non-empty.
387 * (3) ro.product.locale
388 * (4) ro.product.locale.language/region
389 *
390 * Note that we need to inspect persist.sys.language/country/localevar to
391 * preserve language settings for devices that are upgrading from Lollipop
392 * to M. The same goes for ro.product.locale.language/region as well.
393 */
394const std::string readLocale()
395{
396    const std::string locale = getProperty("persist.sys.locale", "");
397    if (!locale.empty()) {
398        return locale;
399    }
400
401    const std::string language = getProperty("persist.sys.language", "");
402    if (!language.empty()) {
403        const std::string country = getProperty("persist.sys.country", "");
404        const std::string variant = getProperty("persist.sys.localevar", "");
405
406        std::string out = language;
407        if (!country.empty()) {
408            out = out + "-" + country;
409        }
410
411        if (!variant.empty()) {
412            out = out + "-" + variant;
413        }
414
415        return out;
416    }
417
418    const std::string productLocale = getProperty("ro.product.locale", "");
419    if (!productLocale.empty()) {
420        return productLocale;
421    }
422
423    // If persist.sys.locale and ro.product.locale are missing,
424    // construct a locale value from the individual locale components.
425    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
426    const std::string productRegion = getProperty("ro.product.locale.region", "US");
427
428    return productLanguage + "-" + productRegion;
429}
430
431void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
432{
433    JavaVMOption opt;
434    opt.optionString = optionString;
435    opt.extraInfo = extraInfo;
436    mOptions.add(opt);
437}
438
439/*
440 * Parse a property containing space-separated options that should be
441 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
442 *
443 * This will cut up "extraOptsBuf" as we chop it into individual options.
444 *
445 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
446 *
447 * Adds the strings, if any, to mOptions.
448 */
449void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
450{
451    char* start = extraOptsBuf;
452    char* end = NULL;
453    while (*start != '\0') {
454        while (*start == ' ')                   /* skip leading whitespace */
455            start++;
456        if (*start == '\0')                     /* was trailing ws, bail */
457            break;
458
459        end = start+1;
460        while (*end != ' ' && *end != '\0')     /* find end of token */
461            end++;
462        if (*end == ' ')
463            *end++ = '\0';          /* mark end, advance to indicate more */
464
465        if (quotingArg != NULL) {
466            addOption(quotingArg);
467        }
468        addOption(start);
469        start = end;
470    }
471}
472
473/*
474 * Reads a "property" into "buffer" with a default of "defaultArg". If
475 * the property is non-empty, it is treated as a runtime option such
476 * as "-Xmx32m".
477 *
478 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
479 *
480 * If an argument is found, it is added to mOptions.
481 *
482 * If an option is found, it is added to mOptions and true is
483 * returned. Otherwise false is returned.
484 */
485bool AndroidRuntime::parseRuntimeOption(const char* property,
486                                        char* buffer,
487                                        const char* runtimeArg,
488                                        const char* defaultArg)
489{
490    strcpy(buffer, runtimeArg);
491    size_t runtimeArgLen = strlen(runtimeArg);
492    property_get(property, buffer+runtimeArgLen, defaultArg);
493    if (buffer[runtimeArgLen] == '\0') {
494        return false;
495    }
496    addOption(buffer);
497    return true;
498}
499
500/*
501 * Reads a "property" into "buffer". If the property is non-empty, it
502 * is treated as a dex2oat compiler option that should be
503 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
504 *
505 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
506 *
507 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
508 *
509 * If an option is found, it is added to mOptions and true is
510 * returned. Otherwise false is returned.
511 */
512bool AndroidRuntime::parseCompilerOption(const char* property,
513                                         char* buffer,
514                                         const char* compilerArg,
515                                         const char* quotingArg)
516{
517    strcpy(buffer, compilerArg);
518    size_t compilerArgLen = strlen(compilerArg);
519    property_get(property, buffer+compilerArgLen, "");
520    if (buffer[compilerArgLen] == '\0') {
521        return false;
522    }
523    addOption(quotingArg);
524    addOption(buffer);
525    return true;
526}
527
528/*
529 * Reads a "property" into "buffer". If the property is non-empty, it
530 * is treated as a dex2oat compiler runtime option that should be
531 * passed as a quoted option, e.g. "-Ximage-compiler-option
532 * --runtime-arg -Ximage-compiler-option -Xmx32m".
533 *
534 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
535 *
536 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
537 *
538 * If an option is found, it is added to mOptions and true is
539 * returned. Otherwise false is returned.
540 */
541bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
542                                                char* buffer,
543                                                const char* runtimeArg,
544                                                const char* quotingArg)
545{
546    strcpy(buffer, runtimeArg);
547    size_t runtimeArgLen = strlen(runtimeArg);
548    property_get(property, buffer+runtimeArgLen, "");
549    if (buffer[runtimeArgLen] == '\0') {
550        return false;
551    }
552    addOption(quotingArg);
553    addOption("--runtime-arg");
554    addOption(quotingArg);
555    addOption(buffer);
556    return true;
557}
558
559/*
560 * Start the Dalvik Virtual Machine.
561 *
562 * Various arguments, most determined by system properties, are passed in.
563 * The "mOptions" vector is updated.
564 *
565 * CAUTION: when adding options in here, be careful not to put the
566 * char buffer inside a nested scope.  Adding the buffer to the
567 * options using mOptions.add() does not copy the buffer, so if the
568 * buffer goes out of scope the option may be overwritten.  It's best
569 * to put the buffer at the top of the function so that it is more
570 * unlikely that someone will surround it in a scope at a later time
571 * and thus introduce a bug.
572 *
573 * Returns 0 on success.
574 */
575int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
576{
577    JavaVMInitArgs initArgs;
578    char propBuf[PROPERTY_VALUE_MAX];
579    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
580    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
581    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
582    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
583    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
584    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
585    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
586    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
587    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
588    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
589    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
590    char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
591    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
592    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
593    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
594    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
595    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
596    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
597    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
598    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
599    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
600    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
601    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
602    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
603    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
604    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
605    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
606    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
607    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
608    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
609    char extraOptsBuf[PROPERTY_VALUE_MAX];
610    char voldDecryptBuf[PROPERTY_VALUE_MAX];
611    enum {
612      kEMDefault,
613      kEMIntPortable,
614      kEMIntFast,
615      kEMJitCompiler,
616    } executionMode = kEMDefault;
617    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
618    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
619    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
620    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
621    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
622    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
623    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
624
625    bool checkJni = false;
626    property_get("dalvik.vm.checkjni", propBuf, "");
627    if (strcmp(propBuf, "true") == 0) {
628        checkJni = true;
629    } else if (strcmp(propBuf, "false") != 0) {
630        /* property is neither true nor false; fall back on kernel parameter */
631        property_get("ro.kernel.android.checkjni", propBuf, "");
632        if (propBuf[0] == '1') {
633            checkJni = true;
634        }
635    }
636    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
637    if (checkJni) {
638        /* extended JNI checking */
639        addOption("-Xcheck:jni");
640
641        /* with -Xcheck:jni, this provides a JNI function call trace */
642        //addOption("-verbose:jni");
643    }
644
645    property_get("dalvik.vm.execution-mode", propBuf, "");
646    if (strcmp(propBuf, "int:portable") == 0) {
647        executionMode = kEMIntPortable;
648    } else if (strcmp(propBuf, "int:fast") == 0) {
649        executionMode = kEMIntFast;
650    } else if (strcmp(propBuf, "int:jit") == 0) {
651        executionMode = kEMJitCompiler;
652    }
653
654    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
655
656    strcpy(jniOptsBuf, "-Xjniopts:");
657    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
658        ALOGI("JNI options: '%s'\n", jniOptsBuf);
659    }
660
661    /* route exit() to our handler */
662    addOption("exit", (void*) runtime_exit);
663
664    /* route fprintf() to our handler */
665    addOption("vfprintf", (void*) runtime_vfprintf);
666
667    /* register the framework-specific "is sensitive thread" hook */
668    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
669
670    /* enable verbose; standard options are { jni, gc, class } */
671    //addOption("-verbose:jni");
672    addOption("-verbose:gc");
673    //addOption("-verbose:class");
674
675    /*
676     * The default starting and maximum size of the heap.  Larger
677     * values should be specified in a product property override.
678     */
679    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
680    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
681
682    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
683    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
684    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
685    parseRuntimeOption("dalvik.vm.heaptargetutilization",
686                       heaptargetutilizationOptsBuf,
687                       "-XX:HeapTargetUtilization=");
688
689    /*
690     * JIT related options.
691     */
692    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
693    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
694    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
695    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
696    property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
697    if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
698        addOption("-Xjitsaveprofilinginfo");
699    }
700
701    property_get("ro.config.low_ram", propBuf, "");
702    if (strcmp(propBuf, "true") == 0) {
703      addOption("-XX:LowMemoryMode");
704    }
705
706    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
707    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
708
709    /*
710     * Enable debugging only for apps forked from zygote.
711     * Set suspend=y to pause during VM init and use android ADB transport.
712     */
713    if (zygote) {
714      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
715    }
716
717    parseRuntimeOption("dalvik.vm.lockprof.threshold",
718                       lockProfThresholdBuf,
719                       "-Xlockprofthreshold:");
720
721    if (executionMode == kEMIntPortable) {
722        addOption("-Xint:portable");
723    } else if (executionMode == kEMIntFast) {
724        addOption("-Xint:fast");
725    } else if (executionMode == kEMJitCompiler) {
726        addOption("-Xint:jit");
727    }
728
729    // If we are booting without the real /data, don't spend time compiling.
730    property_get("vold.decrypt", voldDecryptBuf, "");
731    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
732                             (strcmp(voldDecryptBuf, "1") == 0));
733
734    // Extra options for boot.art/boot.oat image generation.
735    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
736                               "-Xms", "-Ximage-compiler-option");
737    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
738                               "-Xmx", "-Ximage-compiler-option");
739    if (skip_compilation) {
740        addOption("-Ximage-compiler-option");
741        addOption("--compiler-filter=verify-none");
742    } else {
743        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
744                            "--compiler-filter=", "-Ximage-compiler-option");
745    }
746
747    // Make sure there is a preloaded-classes file.
748    if (!hasFile("/system/etc/preloaded-classes")) {
749        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
750              strerror(errno));
751        return -1;
752    }
753    addOption("-Ximage-compiler-option");
754    addOption("--image-classes=/system/etc/preloaded-classes");
755
756    // If there is a compiled-classes file, push it.
757    if (hasFile("/system/etc/compiled-classes")) {
758        addOption("-Ximage-compiler-option");
759        addOption("--compiled-classes=/system/etc/compiled-classes");
760    }
761
762    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
763    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
764
765    // Extra options for DexClassLoader.
766    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
767                               "-Xms", "-Xcompiler-option");
768    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
769                               "-Xmx", "-Xcompiler-option");
770    if (skip_compilation) {
771        addOption("-Xcompiler-option");
772        addOption("--compiler-filter=verify-none");
773
774        // We skip compilation when a minimal runtime is brought up for decryption. In that case
775        // /data is temporarily backed by a tmpfs, which is usually small.
776        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
777        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
778        // directly instead.
779        addOption("--runtime-arg");
780        addOption("-Xnorelocate");
781    } else {
782        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
783                            "--compiler-filter=", "-Xcompiler-option");
784    }
785    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
786    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
787                        "-Ximage-compiler-option");
788
789    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
790    // pass the instruction-set-features/variant as an image-compiler-option.
791    // TODO: Find a better way for the instruction-set.
792#if defined(__arm__)
793    constexpr const char* instruction_set = "arm";
794#elif defined(__aarch64__)
795    constexpr const char* instruction_set = "arm64";
796#elif defined(__mips__) && !defined(__LP64__)
797    constexpr const char* instruction_set = "mips";
798#elif defined(__mips__) && defined(__LP64__)
799    constexpr const char* instruction_set = "mips64";
800#elif defined(__i386__)
801    constexpr const char* instruction_set = "x86";
802#elif defined(__x86_64__)
803    constexpr const char* instruction_set = "x86_64";
804#else
805    constexpr const char* instruction_set = "unknown";
806#endif
807    // Note: it is OK to reuse the buffer, as the values are exactly the same between
808    //       * compiler-option, used for runtime compilation (DexClassLoader)
809    //       * image-compiler-option, used for boot-image compilation on device
810
811    // Copy the variant.
812    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
813    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
814                        "--instruction-set-variant=", "-Ximage-compiler-option");
815    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
816                        "--instruction-set-variant=", "-Xcompiler-option");
817    // Copy the features.
818    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
819    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
820                        "--instruction-set-features=", "-Ximage-compiler-option");
821    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
822                        "--instruction-set-features=", "-Xcompiler-option");
823
824
825    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
826    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
827
828    /* extra options; parse this late so it overrides others */
829    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
830    parseExtraOpts(extraOptsBuf, NULL);
831
832    /* Set the properties for locale */
833    {
834        strcpy(localeOption, "-Duser.locale=");
835        const std::string locale = readLocale();
836        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
837        addOption(localeOption);
838    }
839
840    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
841    property_get("ro.debuggable", propBuf, "0");
842    if (strcmp(propBuf, "1") == 0) {
843        property_get("dalvik.vm.method-trace", propBuf, "false");
844        if (strcmp(propBuf, "true") == 0) {
845            addOption("-Xmethod-trace");
846            parseRuntimeOption("dalvik.vm.method-trace-file",
847                               methodTraceFileBuf,
848                               "-Xmethod-trace-file:");
849            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
850                               methodTraceFileSizeBuf,
851                               "-Xmethod-trace-file-size:");
852            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
853            if (strcmp(propBuf, "true") == 0) {
854                addOption("-Xmethod-trace-stream");
855            }
856        }
857    }
858
859    // Native bridge library. "0" means that native bridge is disabled.
860    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
861    if (propBuf[0] == '\0') {
862        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
863    } else if (strcmp(propBuf, "0") != 0) {
864        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
865                 "-XX:NativeBridge=%s", propBuf);
866        addOption(nativeBridgeLibrary);
867    }
868
869#if defined(__LP64__)
870    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
871#else
872    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
873#endif  // defined(__LP64__)
874    property_get(cpu_abilist_property_name, propBuf, "");
875    if (propBuf[0] == '\0') {
876        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
877        return -1;
878    }
879    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
880    addOption(cpuAbiListBuf);
881
882    // Dalvik-cache pruning counter.
883    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
884                       "-Xzygote-max-boot-retry=");
885
886    /*
887     * When running with debug.generate-debug-info, add --generate-debug-info to
888     * the compiler options so that the boot image, if it is compiled on device,
889     * will include native debugging information.
890     */
891    property_get("debug.generate-debug-info", propBuf, "");
892    if (strcmp(propBuf, "true") == 0) {
893        addOption("-Xcompiler-option");
894        addOption("--generate-debug-info");
895        addOption("-Ximage-compiler-option");
896        addOption("--generate-debug-info");
897    }
898
899    /*
900     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
901     * contain the fingerprint and can be parsed.
902     */
903    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
904
905    initArgs.version = JNI_VERSION_1_4;
906    initArgs.options = mOptions.editArray();
907    initArgs.nOptions = mOptions.size();
908    initArgs.ignoreUnrecognized = JNI_FALSE;
909
910    /*
911     * Initialize the VM.
912     *
913     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
914     * If this call succeeds, the VM is ready, and we can start issuing
915     * JNI calls.
916     */
917    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
918        ALOGE("JNI_CreateJavaVM failed\n");
919        return -1;
920    }
921
922    return 0;
923}
924
925char* AndroidRuntime::toSlashClassName(const char* className)
926{
927    char* result = strdup(className);
928    for (char* cp = result; *cp != '\0'; cp++) {
929        if (*cp == '.') {
930            *cp = '/';
931        }
932    }
933    return result;
934}
935
936/** Create a Java string from an ASCII or Latin-1 string */
937jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
938    if (!bytes) return NULL;
939    int length = strlen(bytes);
940    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
941    if (!buffer) return NULL;
942    jchar* chp = buffer;
943    for (int i = 0; i < length; i++) {
944        *chp++ = *bytes++;
945    }
946    return env->NewString(buffer, length);
947}
948
949
950/*
951 * Start the Android runtime.  This involves starting the virtual machine
952 * and calling the "static void main(String[] args)" method in the class
953 * named by "className".
954 *
955 * Passes the main function two arguments, the class name and the specified
956 * options string.
957 */
958void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
959{
960    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
961            className != NULL ? className : "(unknown)", getuid());
962
963    static const String8 startSystemServer("start-system-server");
964
965    /*
966     * 'startSystemServer == true' means runtime is obsolete and not run from
967     * init.rc anymore, so we print out the boot start event here.
968     */
969    for (size_t i = 0; i < options.size(); ++i) {
970        if (options[i] == startSystemServer) {
971           /* track our progress through the boot sequence */
972           const int LOG_BOOT_PROGRESS_START = 3000;
973           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
974        }
975    }
976
977    const char* rootDir = getenv("ANDROID_ROOT");
978    if (rootDir == NULL) {
979        rootDir = "/system";
980        if (!hasDir("/system")) {
981            LOG_FATAL("No root directory specified, and /android does not exist.");
982            return;
983        }
984        setenv("ANDROID_ROOT", rootDir, 1);
985    }
986
987    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
988    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
989
990    /* start the virtual machine */
991    JniInvocation jni_invocation;
992    jni_invocation.Init(NULL);
993    JNIEnv* env;
994    if (startVm(&mJavaVM, &env, zygote) != 0) {
995        return;
996    }
997    onVmCreated(env);
998
999    /*
1000     * Register android functions.
1001     */
1002    if (startReg(env) < 0) {
1003        ALOGE("Unable to register all android natives\n");
1004        return;
1005    }
1006
1007    /*
1008     * We want to call main() with a String array with arguments in it.
1009     * At present we have two arguments, the class name and an option string.
1010     * Create an array to hold them.
1011     */
1012    jclass stringClass;
1013    jobjectArray strArray;
1014    jstring classNameStr;
1015
1016    stringClass = env->FindClass("java/lang/String");
1017    assert(stringClass != NULL);
1018    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1019    assert(strArray != NULL);
1020    classNameStr = env->NewStringUTF(className);
1021    assert(classNameStr != NULL);
1022    env->SetObjectArrayElement(strArray, 0, classNameStr);
1023
1024    for (size_t i = 0; i < options.size(); ++i) {
1025        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1026        assert(optionsStr != NULL);
1027        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1028    }
1029
1030    /*
1031     * Start VM.  This thread becomes the main thread of the VM, and will
1032     * not return until the VM exits.
1033     */
1034    char* slashClassName = toSlashClassName(className);
1035    jclass startClass = env->FindClass(slashClassName);
1036    if (startClass == NULL) {
1037        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1038        /* keep going */
1039    } else {
1040        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1041            "([Ljava/lang/String;)V");
1042        if (startMeth == NULL) {
1043            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1044            /* keep going */
1045        } else {
1046            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1047
1048#if 0
1049            if (env->ExceptionCheck())
1050                threadExitUncaughtException(env);
1051#endif
1052        }
1053    }
1054    free(slashClassName);
1055
1056    ALOGD("Shutting down VM\n");
1057    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1058        ALOGW("Warning: unable to detach main thread\n");
1059    if (mJavaVM->DestroyJavaVM() != 0)
1060        ALOGW("Warning: VM did not shut down cleanly\n");
1061}
1062
1063void AndroidRuntime::exit(int code)
1064{
1065    if (mExitWithoutCleanup) {
1066        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1067        ::_exit(code);
1068    } else {
1069        ALOGI("VM exiting with result code %d.", code);
1070        onExit(code);
1071        ::exit(code);
1072    }
1073}
1074
1075void AndroidRuntime::onVmCreated(JNIEnv* env)
1076{
1077    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1078}
1079
1080/*
1081 * Get the JNIEnv pointer for this thread.
1082 *
1083 * Returns NULL if the slot wasn't allocated or populated.
1084 */
1085/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1086{
1087    JNIEnv* env;
1088    JavaVM* vm = AndroidRuntime::getJavaVM();
1089    assert(vm != NULL);
1090
1091    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1092        return NULL;
1093    return env;
1094}
1095
1096/*
1097 * Makes the current thread visible to the VM.
1098 *
1099 * The JNIEnv pointer returned is only valid for the current thread, and
1100 * thus must be tucked into thread-local storage.
1101 */
1102static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1103{
1104    JavaVMAttachArgs args;
1105    JavaVM* vm;
1106    jint result;
1107
1108    vm = AndroidRuntime::getJavaVM();
1109    assert(vm != NULL);
1110
1111    args.version = JNI_VERSION_1_4;
1112    args.name = (char*) threadName;
1113    args.group = NULL;
1114
1115    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1116    if (result != JNI_OK)
1117        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1118
1119    return result;
1120}
1121
1122/*
1123 * Detach the current thread from the set visible to the VM.
1124 */
1125static int javaDetachThread(void)
1126{
1127    JavaVM* vm;
1128    jint result;
1129
1130    vm = AndroidRuntime::getJavaVM();
1131    assert(vm != NULL);
1132
1133    result = vm->DetachCurrentThread();
1134    if (result != JNI_OK)
1135        ALOGE("ERROR: thread detach failed\n");
1136    return result;
1137}
1138
1139/*
1140 * When starting a native thread that will be visible from the VM, we
1141 * bounce through this to get the right attach/detach action.
1142 * Note that this function calls free(args)
1143 */
1144/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1145    void* start = ((void**)args)[0];
1146    void* userData = ((void **)args)[1];
1147    char* name = (char*) ((void **)args)[2];        // we own this storage
1148    free(args);
1149    JNIEnv* env;
1150    int result;
1151
1152    /* hook us into the VM */
1153    if (javaAttachThread(name, &env) != JNI_OK)
1154        return -1;
1155
1156    /* start the thread running */
1157    result = (*(android_thread_func_t)start)(userData);
1158
1159    /* unhook us */
1160    javaDetachThread();
1161    free(name);
1162
1163    return result;
1164}
1165
1166/*
1167 * This is invoked from androidCreateThreadEtc() via the callback
1168 * set with androidSetCreateThreadFunc().
1169 *
1170 * We need to create the new thread in such a way that it gets hooked
1171 * into the VM before it really starts executing.
1172 */
1173/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1174                                android_thread_func_t entryFunction,
1175                                void* userData,
1176                                const char* threadName,
1177                                int32_t threadPriority,
1178                                size_t threadStackSize,
1179                                android_thread_id_t* threadId)
1180{
1181    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1182    int result;
1183
1184    if (!threadName)
1185        threadName = "unnamed thread";
1186
1187    args[0] = (void*) entryFunction;
1188    args[1] = userData;
1189    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1190
1191    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1192        threadName, threadPriority, threadStackSize, threadId);
1193    return result;
1194}
1195
1196/*
1197 * Create a thread that is visible from the VM.
1198 *
1199 * This is called from elsewhere in the library.
1200 */
1201/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1202    void (*start)(void *), void* arg)
1203{
1204    android_thread_id_t threadId = 0;
1205    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1206        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1207    return threadId;
1208}
1209
1210#if 0
1211static void quickTest(void* arg)
1212{
1213    const char* str = (const char*) arg;
1214
1215    printf("In quickTest: %s\n", str);
1216}
1217#endif
1218
1219#ifdef NDEBUG
1220    #define REG_JNI(name)      { name }
1221    struct RegJNIRec {
1222        int (*mProc)(JNIEnv*);
1223    };
1224#else
1225    #define REG_JNI(name)      { name, #name }
1226    struct RegJNIRec {
1227        int (*mProc)(JNIEnv*);
1228        const char* mName;
1229    };
1230#endif
1231
1232typedef void (*RegJAMProc)();
1233
1234static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1235{
1236    for (size_t i = 0; i < count; i++) {
1237        if (array[i].mProc(env) < 0) {
1238#ifndef NDEBUG
1239            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1240#endif
1241            return -1;
1242        }
1243    }
1244    return 0;
1245}
1246
1247static const RegJNIRec gRegJNI[] = {
1248    REG_JNI(register_com_android_internal_os_RuntimeInit),
1249    REG_JNI(register_android_os_SystemClock),
1250    REG_JNI(register_android_util_EventLog),
1251    REG_JNI(register_android_util_Log),
1252    REG_JNI(register_android_util_PathParser),
1253    REG_JNI(register_android_auditing_SecurityLog),
1254    REG_JNI(register_android_content_AssetManager),
1255    REG_JNI(register_android_content_StringBlock),
1256    REG_JNI(register_android_content_XmlBlock),
1257    REG_JNI(register_android_text_AndroidCharacter),
1258    REG_JNI(register_android_text_StaticLayout),
1259    REG_JNI(register_android_text_AndroidBidi),
1260    REG_JNI(register_android_view_InputDevice),
1261    REG_JNI(register_android_view_KeyCharacterMap),
1262    REG_JNI(register_android_os_Process),
1263    REG_JNI(register_android_os_SystemProperties),
1264    REG_JNI(register_android_os_Binder),
1265    REG_JNI(register_android_os_Parcel),
1266    REG_JNI(register_android_nio_utils),
1267    REG_JNI(register_android_graphics_Canvas),
1268    REG_JNI(register_android_graphics_Graphics),
1269    REG_JNI(register_android_view_DisplayEventReceiver),
1270    REG_JNI(register_android_view_RenderNode),
1271    REG_JNI(register_android_view_RenderNodeAnimator),
1272    REG_JNI(register_android_view_GraphicBuffer),
1273    REG_JNI(register_android_view_DisplayListCanvas),
1274    REG_JNI(register_android_view_HardwareLayer),
1275    REG_JNI(register_android_view_ThreadedRenderer),
1276    REG_JNI(register_android_view_Surface),
1277    REG_JNI(register_android_view_SurfaceControl),
1278    REG_JNI(register_android_view_SurfaceSession),
1279    REG_JNI(register_android_view_TextureView),
1280    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1281    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1282    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1283    REG_JNI(register_android_opengl_jni_EGL14),
1284    REG_JNI(register_android_opengl_jni_EGLExt),
1285    REG_JNI(register_android_opengl_jni_GLES10),
1286    REG_JNI(register_android_opengl_jni_GLES10Ext),
1287    REG_JNI(register_android_opengl_jni_GLES11),
1288    REG_JNI(register_android_opengl_jni_GLES11Ext),
1289    REG_JNI(register_android_opengl_jni_GLES20),
1290    REG_JNI(register_android_opengl_jni_GLES30),
1291    REG_JNI(register_android_opengl_jni_GLES31),
1292    REG_JNI(register_android_opengl_jni_GLES31Ext),
1293    REG_JNI(register_android_opengl_jni_GLES32),
1294
1295    REG_JNI(register_android_graphics_Bitmap),
1296    REG_JNI(register_android_graphics_BitmapFactory),
1297    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1298    REG_JNI(register_android_graphics_Camera),
1299    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1300    REG_JNI(register_android_graphics_CanvasProperty),
1301    REG_JNI(register_android_graphics_ColorFilter),
1302    REG_JNI(register_android_graphics_DrawFilter),
1303    REG_JNI(register_android_graphics_FontFamily),
1304    REG_JNI(register_android_graphics_Interpolator),
1305    REG_JNI(register_android_graphics_LayerRasterizer),
1306    REG_JNI(register_android_graphics_MaskFilter),
1307    REG_JNI(register_android_graphics_Matrix),
1308    REG_JNI(register_android_graphics_Movie),
1309    REG_JNI(register_android_graphics_NinePatch),
1310    REG_JNI(register_android_graphics_Paint),
1311    REG_JNI(register_android_graphics_Path),
1312    REG_JNI(register_android_graphics_PathMeasure),
1313    REG_JNI(register_android_graphics_PathEffect),
1314    REG_JNI(register_android_graphics_Picture),
1315    REG_JNI(register_android_graphics_PorterDuff),
1316    REG_JNI(register_android_graphics_Rasterizer),
1317    REG_JNI(register_android_graphics_Region),
1318    REG_JNI(register_android_graphics_Shader),
1319    REG_JNI(register_android_graphics_SurfaceTexture),
1320    REG_JNI(register_android_graphics_Typeface),
1321    REG_JNI(register_android_graphics_Xfermode),
1322    REG_JNI(register_android_graphics_YuvImage),
1323    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1324    REG_JNI(register_android_graphics_pdf_PdfDocument),
1325    REG_JNI(register_android_graphics_pdf_PdfEditor),
1326    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1327
1328    REG_JNI(register_android_database_CursorWindow),
1329    REG_JNI(register_android_database_SQLiteConnection),
1330    REG_JNI(register_android_database_SQLiteGlobal),
1331    REG_JNI(register_android_database_SQLiteDebug),
1332    REG_JNI(register_android_os_Debug),
1333    REG_JNI(register_android_os_FileObserver),
1334    REG_JNI(register_android_os_MessageQueue),
1335    REG_JNI(register_android_os_SELinux),
1336    REG_JNI(register_android_os_Trace),
1337    REG_JNI(register_android_os_UEventObserver),
1338    REG_JNI(register_android_net_LocalSocketImpl),
1339    REG_JNI(register_android_net_NetworkUtils),
1340    REG_JNI(register_android_net_TrafficStats),
1341    REG_JNI(register_android_os_MemoryFile),
1342    REG_JNI(register_com_android_internal_os_Zygote),
1343    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1344    REG_JNI(register_android_hardware_Camera),
1345    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1346    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1347    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1348    REG_JNI(register_android_hardware_camera2_DngCreator),
1349    REG_JNI(register_android_hardware_Radio),
1350    REG_JNI(register_android_hardware_SensorManager),
1351    REG_JNI(register_android_hardware_SerialPort),
1352    REG_JNI(register_android_hardware_SoundTrigger),
1353    REG_JNI(register_android_hardware_UsbDevice),
1354    REG_JNI(register_android_hardware_UsbDeviceConnection),
1355    REG_JNI(register_android_hardware_UsbRequest),
1356    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1357    REG_JNI(register_android_media_AudioRecord),
1358    REG_JNI(register_android_media_AudioSystem),
1359    REG_JNI(register_android_media_AudioTrack),
1360    REG_JNI(register_android_media_JetPlayer),
1361    REG_JNI(register_android_media_RemoteDisplay),
1362    REG_JNI(register_android_media_ToneGenerator),
1363
1364    REG_JNI(register_android_opengl_classes),
1365    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1366    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1367    REG_JNI(register_android_backup_BackupDataInput),
1368    REG_JNI(register_android_backup_BackupDataOutput),
1369    REG_JNI(register_android_backup_FileBackupHelperBase),
1370    REG_JNI(register_android_backup_BackupHelperDispatcher),
1371    REG_JNI(register_android_app_backup_FullBackup),
1372    REG_JNI(register_android_app_ActivityThread),
1373    REG_JNI(register_android_app_NativeActivity),
1374    REG_JNI(register_android_util_jar_StrictJarFile),
1375    REG_JNI(register_android_view_InputChannel),
1376    REG_JNI(register_android_view_InputEventReceiver),
1377    REG_JNI(register_android_view_InputEventSender),
1378    REG_JNI(register_android_view_InputQueue),
1379    REG_JNI(register_android_view_KeyEvent),
1380    REG_JNI(register_android_view_MotionEvent),
1381    REG_JNI(register_android_view_PointerIcon),
1382    REG_JNI(register_android_view_VelocityTracker),
1383
1384    REG_JNI(register_android_content_res_ObbScanner),
1385    REG_JNI(register_android_content_res_Configuration),
1386
1387    REG_JNI(register_android_animation_PropertyValuesHolder),
1388    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1389    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1390
1391
1392};
1393
1394/*
1395 * Register android native functions with the VM.
1396 */
1397/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1398{
1399    ATRACE_NAME("RegisterAndroidNatives");
1400    /*
1401     * This hook causes all future threads created in this process to be
1402     * attached to the JavaVM.  (This needs to go away in favor of JNI
1403     * Attach calls.)
1404     */
1405    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1406
1407    ALOGV("--- registering native functions ---\n");
1408
1409    /*
1410     * Every "register" function calls one or more things that return
1411     * a local reference (e.g. FindClass).  Because we haven't really
1412     * started the VM yet, they're all getting stored in the base frame
1413     * and never released.  Use Push/Pop to manage the storage.
1414     */
1415    env->PushLocalFrame(200);
1416
1417    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1418        env->PopLocalFrame(NULL);
1419        return -1;
1420    }
1421    env->PopLocalFrame(NULL);
1422
1423    //createJavaThread("fubar", quickTest, (void*) "hello");
1424
1425    return 0;
1426}
1427
1428AndroidRuntime* AndroidRuntime::getRuntime()
1429{
1430    return gCurRuntime;
1431}
1432
1433/**
1434 * Used by surface flinger's DdmConnection to register native methods from
1435 * the framework.
1436 */
1437extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1438    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1439}
1440}   // namespace android
1441