AndroidRuntime.cpp revision 750ccd53331105b2af96db052ffd28035490c4f2 
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
34#include "jni.h"
35#include "JNIHelp.h"
36#include "JniInvocation.h"
37#include "android_util_Binder.h"
38
39#include <stdio.h>
40#include <signal.h>
41#include <sys/stat.h>
42#include <sys/types.h>
43#include <signal.h>
44#include <dirent.h>
45#include <assert.h>
46
47#include <string>
48#include <vector>
49
50
51using namespace android;
52
53extern int register_android_os_Binder(JNIEnv* env);
54extern int register_android_os_Process(JNIEnv* env);
55extern int register_android_graphics_Bitmap(JNIEnv*);
56extern int register_android_graphics_BitmapFactory(JNIEnv*);
57extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
58extern int register_android_graphics_Camera(JNIEnv* env);
59extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
60extern int register_android_graphics_Graphics(JNIEnv* env);
61extern int register_android_graphics_Interpolator(JNIEnv* env);
62extern int register_android_graphics_MaskFilter(JNIEnv* env);
63extern int register_android_graphics_Movie(JNIEnv* env);
64extern int register_android_graphics_NinePatch(JNIEnv*);
65extern int register_android_graphics_PathEffect(JNIEnv* env);
66extern int register_android_graphics_Shader(JNIEnv* env);
67extern int register_android_graphics_Typeface(JNIEnv* env);
68extern int register_android_graphics_YuvImage(JNIEnv* env);
69
70extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
71extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
72extern int register_android_opengl_jni_EGL14(JNIEnv* env);
73extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
74extern int register_android_opengl_jni_GLES10(JNIEnv* env);
75extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
76extern int register_android_opengl_jni_GLES11(JNIEnv* env);
77extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
78extern int register_android_opengl_jni_GLES20(JNIEnv* env);
79extern int register_android_opengl_jni_GLES30(JNIEnv* env);
80extern int register_android_opengl_jni_GLES31(JNIEnv* env);
81extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
82extern int register_android_opengl_jni_GLES32(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);
97extern int register_android_hardware_location_ContextHubService(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_app_admin_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_MemoryIntArray(JNIEnv* env);
116extern int register_android_util_PathParser(JNIEnv* env);
117extern int register_android_content_StringBlock(JNIEnv* env);
118extern int register_android_content_XmlBlock(JNIEnv* env);
119extern int register_android_graphics_Canvas(JNIEnv* env);
120extern int register_android_graphics_CanvasProperty(JNIEnv* env);
121extern int register_android_graphics_ColorFilter(JNIEnv* env);
122extern int register_android_graphics_DrawFilter(JNIEnv* env);
123extern int register_android_graphics_FontFamily(JNIEnv* env);
124extern int register_android_graphics_LayerRasterizer(JNIEnv*);
125extern int register_android_graphics_Matrix(JNIEnv* env);
126extern int register_android_graphics_Paint(JNIEnv* env);
127extern int register_android_graphics_Path(JNIEnv* env);
128extern int register_android_graphics_PathMeasure(JNIEnv* env);
129extern int register_android_graphics_Picture(JNIEnv*);
130extern int register_android_graphics_PorterDuff(JNIEnv* env);
131extern int register_android_graphics_Rasterizer(JNIEnv* env);
132extern int register_android_graphics_Region(JNIEnv* env);
133extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
134extern int register_android_graphics_Xfermode(JNIEnv* env);
135extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env);
136extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
137extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
138extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
139extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
140extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
141extern int register_android_view_DisplayListCanvas(JNIEnv* env);
142extern int register_android_view_GraphicBuffer(JNIEnv* env);
143extern int register_android_view_HardwareLayer(JNIEnv* env);
144extern int register_android_view_RenderNode(JNIEnv* env);
145extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
146extern int register_android_view_Surface(JNIEnv* env);
147extern int register_android_view_SurfaceControl(JNIEnv* env);
148extern int register_android_view_SurfaceSession(JNIEnv* env);
149extern int register_android_view_TextureView(JNIEnv* env);
150extern int register_android_view_ThreadedRenderer(JNIEnv* env);
151extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
152extern int register_android_database_CursorWindow(JNIEnv* env);
153extern int register_android_database_SQLiteConnection(JNIEnv* env);
154extern int register_android_database_SQLiteGlobal(JNIEnv* env);
155extern int register_android_database_SQLiteDebug(JNIEnv* env);
156extern int register_android_nio_utils(JNIEnv* env);
157extern int register_android_os_Debug(JNIEnv* env);
158extern int register_android_os_MessageQueue(JNIEnv* env);
159extern int register_android_os_Parcel(JNIEnv* env);
160extern int register_android_os_SELinux(JNIEnv* env);
161extern int register_android_os_SystemProperties(JNIEnv *env);
162extern int register_android_os_SystemClock(JNIEnv* env);
163extern int register_android_os_Trace(JNIEnv* env);
164extern int register_android_os_FileObserver(JNIEnv *env);
165extern int register_android_os_UEventObserver(JNIEnv* env);
166extern int register_android_os_MemoryFile(JNIEnv* env);
167extern int register_android_net_LocalSocketImpl(JNIEnv* env);
168extern int register_android_net_NetworkUtils(JNIEnv* env);
169extern int register_android_net_TrafficStats(JNIEnv* env);
170extern int register_android_text_AndroidCharacter(JNIEnv *env);
171extern int register_android_text_StaticLayout(JNIEnv *env);
172extern int register_android_text_AndroidBidi(JNIEnv *env);
173extern int register_android_opengl_classes(JNIEnv *env);
174extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
175extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
176extern int register_android_backup_BackupDataInput(JNIEnv *env);
177extern int register_android_backup_BackupDataOutput(JNIEnv *env);
178extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
179extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
180extern int register_android_app_backup_FullBackup(JNIEnv *env);
181extern int register_android_app_Activity(JNIEnv *env);
182extern int register_android_app_ActivityThread(JNIEnv *env);
183extern int register_android_app_NativeActivity(JNIEnv *env);
184extern int register_android_media_RemoteDisplay(JNIEnv *env);
185extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
186extern int register_android_view_InputChannel(JNIEnv* env);
187extern int register_android_view_InputDevice(JNIEnv* env);
188extern int register_android_view_InputEventReceiver(JNIEnv* env);
189extern int register_android_view_InputEventSender(JNIEnv* env);
190extern int register_android_view_InputQueue(JNIEnv* env);
191extern int register_android_view_KeyCharacterMap(JNIEnv *env);
192extern int register_android_view_KeyEvent(JNIEnv* env);
193extern int register_android_view_MotionEvent(JNIEnv* env);
194extern int register_android_view_PointerIcon(JNIEnv* env);
195extern int register_android_view_VelocityTracker(JNIEnv* env);
196extern int register_android_content_res_ObbScanner(JNIEnv* env);
197extern int register_android_content_res_Configuration(JNIEnv* env);
198extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
199extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
200extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
201extern int register_com_android_internal_os_PathClassLoaderFactory(JNIEnv* env);
202extern int register_com_android_internal_os_Zygote(JNIEnv *env);
203extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
204
205static AndroidRuntime* gCurRuntime = NULL;
206
207/*
208 * Code written in the Java Programming Language calls here from main().
209 */
210static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
211{
212    gCurRuntime->onStarted();
213}
214
215static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
216{
217    gCurRuntime->onZygoteInit();
218}
219
220static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
221        jobject clazz, jboolean exitWithoutCleanup)
222{
223    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
224}
225
226/*
227 * JNI registration.
228 */
229static const JNINativeMethod gMethods[] = {
230    { "nativeFinishInit", "()V",
231        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
232    { "nativeZygoteInit", "()V",
233        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
234    { "nativeSetExitWithoutCleanup", "(Z)V",
235        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
236};
237
238int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
239{
240    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
241        gMethods, NELEM(gMethods));
242}
243
244// ----------------------------------------------------------------------
245
246/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
247
248AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
249        mExitWithoutCleanup(false),
250        mArgBlockStart(argBlockStart),
251        mArgBlockLength(argBlockLength)
252{
253    SkGraphics::Init();
254    // There is also a global font cache, but its budget is specified by
255    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
256
257    // Pre-allocate enough space to hold a fair number of options.
258    mOptions.setCapacity(20);
259
260    assert(gCurRuntime == NULL);        // one per process
261    gCurRuntime = this;
262}
263
264AndroidRuntime::~AndroidRuntime()
265{
266    SkGraphics::Term();
267}
268
269/*
270 * Register native methods using JNI.
271 */
272/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
273    const char* className, const JNINativeMethod* gMethods, int numMethods)
274{
275    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
276}
277
278void AndroidRuntime::setArgv0(const char* argv0) {
279    memset(mArgBlockStart, 0, mArgBlockLength);
280    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
281}
282
283status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
284    const Vector<String8>& args)
285{
286    JNIEnv* env;
287    jmethodID methodId;
288
289    ALOGD("Calling main entry %s", className.string());
290
291    env = getJNIEnv();
292    if (clazz == NULL || env == NULL) {
293        return UNKNOWN_ERROR;
294    }
295
296    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
297    if (methodId == NULL) {
298        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
299        return UNKNOWN_ERROR;
300    }
301
302    /*
303     * We want to call main() with a String array with our arguments in it.
304     * Create an array and populate it.
305     */
306    jclass stringClass;
307    jobjectArray strArray;
308
309    const size_t numArgs = args.size();
310    stringClass = env->FindClass("java/lang/String");
311    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
312
313    for (size_t i = 0; i < numArgs; i++) {
314        jstring argStr = env->NewStringUTF(args[i].string());
315        env->SetObjectArrayElement(strArray, i, argStr);
316    }
317
318    env->CallStaticVoidMethod(clazz, methodId, strArray);
319    return NO_ERROR;
320}
321
322/*
323 * The VM calls this through the "exit" hook.
324 */
325static void runtime_exit(int code)
326{
327    gCurRuntime->exit(code);
328}
329
330/*
331 * The VM calls this through the "vfprintf" hook.
332 *
333 * We ignore "fp" and just write the results to the log file.
334 */
335static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
336{
337    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
338}
339
340/**
341 * The VM calls this when mutex contention debugging is enabled to
342 * determine whether or not the blocked thread was a "sensitive thread"
343 * for user responsiveness/smoothess.
344 *
345 * Our policy for this is whether or not we're tracing any StrictMode
346 * events on this thread (which we might've inherited via Binder calls
347 * into us)
348 */
349static bool runtime_isSensitiveThread() {
350    IPCThreadState* state = IPCThreadState::selfOrNull();
351    return state && state->getStrictModePolicy() != 0;
352}
353
354static int hasDir(const char* dir)
355{
356    struct stat s;
357    int res = stat(dir, &s);
358    if (res == 0) {
359        return S_ISDIR(s.st_mode);
360    }
361    return 0;
362}
363
364static bool hasFile(const char* file) {
365    struct stat s;
366    int res = stat(file, &s);
367    if (res == 0) {
368        return S_ISREG(s.st_mode);
369    }
370    return false;
371}
372
373// Convenience wrapper over the property API that returns an
374// std::string.
375std::string getProperty(const char* key, const char* defaultValue) {
376    std::vector<char> temp(PROPERTY_VALUE_MAX);
377    const int len = property_get(key, &temp[0], defaultValue);
378    if (len < 0) {
379        return "";
380    }
381    return std::string(&temp[0], len);
382}
383
384/*
385 * Read the persistent locale. Inspects the following system properties
386 * (in order) and returns the first non-empty property in the list :
387 *
388 * (1) persist.sys.locale
389 * (2) persist.sys.language/country/localevar (country and localevar are
390 * inspected iff. language is non-empty.
391 * (3) ro.product.locale
392 * (4) ro.product.locale.language/region
393 *
394 * Note that we need to inspect persist.sys.language/country/localevar to
395 * preserve language settings for devices that are upgrading from Lollipop
396 * to M. The same goes for ro.product.locale.language/region as well.
397 */
398const std::string readLocale()
399{
400    const std::string locale = getProperty("persist.sys.locale", "");
401    if (!locale.empty()) {
402        return locale;
403    }
404
405    const std::string language = getProperty("persist.sys.language", "");
406    if (!language.empty()) {
407        const std::string country = getProperty("persist.sys.country", "");
408        const std::string variant = getProperty("persist.sys.localevar", "");
409
410        std::string out = language;
411        if (!country.empty()) {
412            out = out + "-" + country;
413        }
414
415        if (!variant.empty()) {
416            out = out + "-" + variant;
417        }
418
419        return out;
420    }
421
422    const std::string productLocale = getProperty("ro.product.locale", "");
423    if (!productLocale.empty()) {
424        return productLocale;
425    }
426
427    // If persist.sys.locale and ro.product.locale are missing,
428    // construct a locale value from the individual locale components.
429    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
430    const std::string productRegion = getProperty("ro.product.locale.region", "US");
431
432    return productLanguage + "-" + productRegion;
433}
434
435void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
436{
437    JavaVMOption opt;
438    opt.optionString = optionString;
439    opt.extraInfo = extraInfo;
440    mOptions.add(opt);
441}
442
443/*
444 * Parse a property containing space-separated options that should be
445 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
446 *
447 * This will cut up "extraOptsBuf" as we chop it into individual options.
448 *
449 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
450 *
451 * Adds the strings, if any, to mOptions.
452 */
453void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
454{
455    char* start = extraOptsBuf;
456    char* end = NULL;
457    while (*start != '\0') {
458        while (*start == ' ')                   /* skip leading whitespace */
459            start++;
460        if (*start == '\0')                     /* was trailing ws, bail */
461            break;
462
463        end = start+1;
464        while (*end != ' ' && *end != '\0')     /* find end of token */
465            end++;
466        if (*end == ' ')
467            *end++ = '\0';          /* mark end, advance to indicate more */
468
469        if (quotingArg != NULL) {
470            addOption(quotingArg);
471        }
472        addOption(start);
473        start = end;
474    }
475}
476
477/*
478 * Reads a "property" into "buffer" with a default of "defaultArg". If
479 * the property is non-empty, it is treated as a runtime option such
480 * as "-Xmx32m".
481 *
482 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
483 *
484 * If an argument is found, it is added to mOptions.
485 *
486 * If an option is found, it is added to mOptions and true is
487 * returned. Otherwise false is returned.
488 */
489bool AndroidRuntime::parseRuntimeOption(const char* property,
490                                        char* buffer,
491                                        const char* runtimeArg,
492                                        const char* defaultArg)
493{
494    strcpy(buffer, runtimeArg);
495    size_t runtimeArgLen = strlen(runtimeArg);
496    property_get(property, buffer+runtimeArgLen, defaultArg);
497    if (buffer[runtimeArgLen] == '\0') {
498        return false;
499    }
500    addOption(buffer);
501    return true;
502}
503
504/*
505 * Reads a "property" into "buffer". If the property is non-empty, it
506 * is treated as a dex2oat compiler option that should be
507 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
508 *
509 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
510 *
511 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
512 *
513 * If an option is found, it is added to mOptions and true is
514 * returned. Otherwise false is returned.
515 */
516bool AndroidRuntime::parseCompilerOption(const char* property,
517                                         char* buffer,
518                                         const char* compilerArg,
519                                         const char* quotingArg)
520{
521    strcpy(buffer, compilerArg);
522    size_t compilerArgLen = strlen(compilerArg);
523    property_get(property, buffer+compilerArgLen, "");
524    if (buffer[compilerArgLen] == '\0') {
525        return false;
526    }
527    addOption(quotingArg);
528    addOption(buffer);
529    return true;
530}
531
532/*
533 * Reads a "property" into "buffer". If the property is non-empty, it
534 * is treated as a dex2oat compiler runtime option that should be
535 * passed as a quoted option, e.g. "-Ximage-compiler-option
536 * --runtime-arg -Ximage-compiler-option -Xmx32m".
537 *
538 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
539 *
540 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
541 *
542 * If an option is found, it is added to mOptions and true is
543 * returned. Otherwise false is returned.
544 */
545bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
546                                                char* buffer,
547                                                const char* runtimeArg,
548                                                const char* quotingArg)
549{
550    strcpy(buffer, runtimeArg);
551    size_t runtimeArgLen = strlen(runtimeArg);
552    property_get(property, buffer+runtimeArgLen, "");
553    if (buffer[runtimeArgLen] == '\0') {
554        return false;
555    }
556    addOption(quotingArg);
557    addOption("--runtime-arg");
558    addOption(quotingArg);
559    addOption(buffer);
560    return true;
561}
562
563/*
564 * Start the Dalvik Virtual Machine.
565 *
566 * Various arguments, most determined by system properties, are passed in.
567 * The "mOptions" vector is updated.
568 *
569 * CAUTION: when adding options in here, be careful not to put the
570 * char buffer inside a nested scope.  Adding the buffer to the
571 * options using mOptions.add() does not copy the buffer, so if the
572 * buffer goes out of scope the option may be overwritten.  It's best
573 * to put the buffer at the top of the function so that it is more
574 * unlikely that someone will surround it in a scope at a later time
575 * and thus introduce a bug.
576 *
577 * Returns 0 on success.
578 */
579int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
580{
581    JavaVMInitArgs initArgs;
582    char propBuf[PROPERTY_VALUE_MAX];
583    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
584    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
585    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
586    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
587    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
588    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
589    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
590    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
591    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
592    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
593    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
594    char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
595    char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
596    char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
597    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
598    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
599    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
600    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
601    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
602    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
603    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
604    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
605    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
606    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
607    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
608    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
609    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
610    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
611    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
612    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
613    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
614    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
615    char extraOptsBuf[PROPERTY_VALUE_MAX];
616    char voldDecryptBuf[PROPERTY_VALUE_MAX];
617    enum {
618      kEMDefault,
619      kEMIntPortable,
620      kEMIntFast,
621      kEMJitCompiler,
622    } executionMode = kEMDefault;
623    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
624    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
625    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
626    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
627    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
628    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
629    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
630
631    bool checkJni = false;
632    property_get("dalvik.vm.checkjni", propBuf, "");
633    if (strcmp(propBuf, "true") == 0) {
634        checkJni = true;
635    } else if (strcmp(propBuf, "false") != 0) {
636        /* property is neither true nor false; fall back on kernel parameter */
637        property_get("ro.kernel.android.checkjni", propBuf, "");
638        if (propBuf[0] == '1') {
639            checkJni = true;
640        }
641    }
642    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
643    if (checkJni) {
644        /* extended JNI checking */
645        addOption("-Xcheck:jni");
646
647        /* with -Xcheck:jni, this provides a JNI function call trace */
648        //addOption("-verbose:jni");
649    }
650
651    property_get("dalvik.vm.execution-mode", propBuf, "");
652    if (strcmp(propBuf, "int:portable") == 0) {
653        executionMode = kEMIntPortable;
654    } else if (strcmp(propBuf, "int:fast") == 0) {
655        executionMode = kEMIntFast;
656    } else if (strcmp(propBuf, "int:jit") == 0) {
657        executionMode = kEMJitCompiler;
658    }
659
660    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
661
662    strcpy(jniOptsBuf, "-Xjniopts:");
663    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
664        ALOGI("JNI options: '%s'\n", jniOptsBuf);
665    }
666
667    /* route exit() to our handler */
668    addOption("exit", (void*) runtime_exit);
669
670    /* route fprintf() to our handler */
671    addOption("vfprintf", (void*) runtime_vfprintf);
672
673    /* register the framework-specific "is sensitive thread" hook */
674    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
675
676    /* enable verbose; standard options are { jni, gc, class } */
677    //addOption("-verbose:jni");
678    addOption("-verbose:gc");
679    //addOption("-verbose:class");
680
681    /*
682     * The default starting and maximum size of the heap.  Larger
683     * values should be specified in a product property override.
684     */
685    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
686    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
687
688    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
689    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
690    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
691    parseRuntimeOption("dalvik.vm.heaptargetutilization",
692                       heaptargetutilizationOptsBuf,
693                       "-XX:HeapTargetUtilization=");
694
695    /*
696     * JIT related options.
697     */
698    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
699    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
700    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
701    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
702    property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
703    if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
704        addOption("-Xjitsaveprofilinginfo");
705    }
706
707    parseRuntimeOption("dalvik.vm.jitprithreadweight",
708                       jitprithreadweightOptBuf,
709                       "-Xjitprithreadweight:");
710
711    parseRuntimeOption("dalvik.vm.jittransitionweight",
712                       jittransitionweightOptBuf,
713                       "-Xjittransitionweight:");
714
715    property_get("ro.config.low_ram", propBuf, "");
716    if (strcmp(propBuf, "true") == 0) {
717      addOption("-XX:LowMemoryMode");
718    }
719
720    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
721    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
722
723    /*
724     * Enable debugging only for apps forked from zygote.
725     * Set suspend=y to pause during VM init and use android ADB transport.
726     */
727    if (zygote) {
728      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
729    }
730
731    parseRuntimeOption("dalvik.vm.lockprof.threshold",
732                       lockProfThresholdBuf,
733                       "-Xlockprofthreshold:");
734
735    if (executionMode == kEMIntPortable) {
736        addOption("-Xint:portable");
737    } else if (executionMode == kEMIntFast) {
738        addOption("-Xint:fast");
739    } else if (executionMode == kEMJitCompiler) {
740        addOption("-Xint:jit");
741    }
742
743    // If we are booting without the real /data, don't spend time compiling.
744    property_get("vold.decrypt", voldDecryptBuf, "");
745    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
746                             (strcmp(voldDecryptBuf, "1") == 0));
747
748    // Extra options for boot.art/boot.oat image generation.
749    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
750                               "-Xms", "-Ximage-compiler-option");
751    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
752                               "-Xmx", "-Ximage-compiler-option");
753    if (skip_compilation) {
754        addOption("-Ximage-compiler-option");
755        addOption("--compiler-filter=verify-none");
756    } else {
757        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
758                            "--compiler-filter=", "-Ximage-compiler-option");
759    }
760
761    // Make sure there is a preloaded-classes file.
762    if (!hasFile("/system/etc/preloaded-classes")) {
763        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
764              strerror(errno));
765        return -1;
766    }
767    addOption("-Ximage-compiler-option");
768    addOption("--image-classes=/system/etc/preloaded-classes");
769
770    // If there is a compiled-classes file, push it.
771    if (hasFile("/system/etc/compiled-classes")) {
772        addOption("-Ximage-compiler-option");
773        addOption("--compiled-classes=/system/etc/compiled-classes");
774    }
775
776    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
777    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
778
779    // Extra options for DexClassLoader.
780    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
781                               "-Xms", "-Xcompiler-option");
782    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
783                               "-Xmx", "-Xcompiler-option");
784    if (skip_compilation) {
785        addOption("-Xcompiler-option");
786        addOption("--compiler-filter=verify-none");
787
788        // We skip compilation when a minimal runtime is brought up for decryption. In that case
789        // /data is temporarily backed by a tmpfs, which is usually small.
790        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
791        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
792        // directly instead.
793        addOption("--runtime-arg");
794        addOption("-Xnorelocate");
795    } else {
796        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
797                            "--compiler-filter=", "-Xcompiler-option");
798    }
799    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
800    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
801                        "-Ximage-compiler-option");
802
803    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
804    // pass the instruction-set-features/variant as an image-compiler-option.
805    // TODO: Find a better way for the instruction-set.
806#if defined(__arm__)
807    constexpr const char* instruction_set = "arm";
808#elif defined(__aarch64__)
809    constexpr const char* instruction_set = "arm64";
810#elif defined(__mips__) && !defined(__LP64__)
811    constexpr const char* instruction_set = "mips";
812#elif defined(__mips__) && defined(__LP64__)
813    constexpr const char* instruction_set = "mips64";
814#elif defined(__i386__)
815    constexpr const char* instruction_set = "x86";
816#elif defined(__x86_64__)
817    constexpr const char* instruction_set = "x86_64";
818#else
819    constexpr const char* instruction_set = "unknown";
820#endif
821    // Note: it is OK to reuse the buffer, as the values are exactly the same between
822    //       * compiler-option, used for runtime compilation (DexClassLoader)
823    //       * image-compiler-option, used for boot-image compilation on device
824
825    // Copy the variant.
826    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
827    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
828                        "--instruction-set-variant=", "-Ximage-compiler-option");
829    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
830                        "--instruction-set-variant=", "-Xcompiler-option");
831    // Copy the features.
832    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
833    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
834                        "--instruction-set-features=", "-Ximage-compiler-option");
835    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
836                        "--instruction-set-features=", "-Xcompiler-option");
837
838
839    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
840    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
841
842    /* extra options; parse this late so it overrides others */
843    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
844    parseExtraOpts(extraOptsBuf, NULL);
845
846    /* Set the properties for locale */
847    {
848        strcpy(localeOption, "-Duser.locale=");
849        const std::string locale = readLocale();
850        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
851        addOption(localeOption);
852    }
853
854    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
855    property_get("ro.debuggable", propBuf, "0");
856    if (strcmp(propBuf, "1") == 0) {
857        property_get("dalvik.vm.method-trace", propBuf, "false");
858        if (strcmp(propBuf, "true") == 0) {
859            addOption("-Xmethod-trace");
860            parseRuntimeOption("dalvik.vm.method-trace-file",
861                               methodTraceFileBuf,
862                               "-Xmethod-trace-file:");
863            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
864                               methodTraceFileSizeBuf,
865                               "-Xmethod-trace-file-size:");
866            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
867            if (strcmp(propBuf, "true") == 0) {
868                addOption("-Xmethod-trace-stream");
869            }
870        }
871    }
872
873    // Native bridge library. "0" means that native bridge is disabled.
874    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
875    if (propBuf[0] == '\0') {
876        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
877    } else if (strcmp(propBuf, "0") != 0) {
878        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
879                 "-XX:NativeBridge=%s", propBuf);
880        addOption(nativeBridgeLibrary);
881    }
882
883#if defined(__LP64__)
884    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
885#else
886    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
887#endif  // defined(__LP64__)
888    property_get(cpu_abilist_property_name, propBuf, "");
889    if (propBuf[0] == '\0') {
890        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
891        return -1;
892    }
893    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
894    addOption(cpuAbiListBuf);
895
896    // Dalvik-cache pruning counter.
897    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
898                       "-Xzygote-max-boot-retry=");
899
900    /*
901     * When running with debug.generate-debug-info, add --generate-debug-info to
902     * the compiler options so that the boot image, if it is compiled on device,
903     * will include native debugging information.
904     */
905    property_get("debug.generate-debug-info", propBuf, "");
906    if (strcmp(propBuf, "true") == 0) {
907        addOption("-Xcompiler-option");
908        addOption("--generate-debug-info");
909        addOption("-Ximage-compiler-option");
910        addOption("--generate-debug-info");
911    }
912
913    /*
914     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
915     * contain the fingerprint and can be parsed.
916     */
917    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
918
919    initArgs.version = JNI_VERSION_1_4;
920    initArgs.options = mOptions.editArray();
921    initArgs.nOptions = mOptions.size();
922    initArgs.ignoreUnrecognized = JNI_FALSE;
923
924    /*
925     * Initialize the VM.
926     *
927     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
928     * If this call succeeds, the VM is ready, and we can start issuing
929     * JNI calls.
930     */
931    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
932        ALOGE("JNI_CreateJavaVM failed\n");
933        return -1;
934    }
935
936    return 0;
937}
938
939char* AndroidRuntime::toSlashClassName(const char* className)
940{
941    char* result = strdup(className);
942    for (char* cp = result; *cp != '\0'; cp++) {
943        if (*cp == '.') {
944            *cp = '/';
945        }
946    }
947    return result;
948}
949
950/** Create a Java string from an ASCII or Latin-1 string */
951jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
952    if (!bytes) return NULL;
953    int length = strlen(bytes);
954    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
955    if (!buffer) return NULL;
956    jchar* chp = buffer;
957    for (int i = 0; i < length; i++) {
958        *chp++ = *bytes++;
959    }
960    return env->NewString(buffer, length);
961}
962
963
964/*
965 * Start the Android runtime.  This involves starting the virtual machine
966 * and calling the "static void main(String[] args)" method in the class
967 * named by "className".
968 *
969 * Passes the main function two arguments, the class name and the specified
970 * options string.
971 */
972void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
973{
974    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
975            className != NULL ? className : "(unknown)", getuid());
976
977    static const String8 startSystemServer("start-system-server");
978
979    /*
980     * 'startSystemServer == true' means runtime is obsolete and not run from
981     * init.rc anymore, so we print out the boot start event here.
982     */
983    for (size_t i = 0; i < options.size(); ++i) {
984        if (options[i] == startSystemServer) {
985           /* track our progress through the boot sequence */
986           const int LOG_BOOT_PROGRESS_START = 3000;
987           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
988        }
989    }
990
991    const char* rootDir = getenv("ANDROID_ROOT");
992    if (rootDir == NULL) {
993        rootDir = "/system";
994        if (!hasDir("/system")) {
995            LOG_FATAL("No root directory specified, and /android does not exist.");
996            return;
997        }
998        setenv("ANDROID_ROOT", rootDir, 1);
999    }
1000
1001    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1002    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1003
1004    /* start the virtual machine */
1005    JniInvocation jni_invocation;
1006    jni_invocation.Init(NULL);
1007    JNIEnv* env;
1008    if (startVm(&mJavaVM, &env, zygote) != 0) {
1009        return;
1010    }
1011    onVmCreated(env);
1012
1013    /*
1014     * Register android functions.
1015     */
1016    if (startReg(env) < 0) {
1017        ALOGE("Unable to register all android natives\n");
1018        return;
1019    }
1020
1021    /*
1022     * We want to call main() with a String array with arguments in it.
1023     * At present we have two arguments, the class name and an option string.
1024     * Create an array to hold them.
1025     */
1026    jclass stringClass;
1027    jobjectArray strArray;
1028    jstring classNameStr;
1029
1030    stringClass = env->FindClass("java/lang/String");
1031    assert(stringClass != NULL);
1032    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1033    assert(strArray != NULL);
1034    classNameStr = env->NewStringUTF(className);
1035    assert(classNameStr != NULL);
1036    env->SetObjectArrayElement(strArray, 0, classNameStr);
1037
1038    for (size_t i = 0; i < options.size(); ++i) {
1039        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1040        assert(optionsStr != NULL);
1041        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1042    }
1043
1044    /*
1045     * Start VM.  This thread becomes the main thread of the VM, and will
1046     * not return until the VM exits.
1047     */
1048    char* slashClassName = toSlashClassName(className);
1049    jclass startClass = env->FindClass(slashClassName);
1050    if (startClass == NULL) {
1051        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1052        /* keep going */
1053    } else {
1054        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1055            "([Ljava/lang/String;)V");
1056        if (startMeth == NULL) {
1057            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1058            /* keep going */
1059        } else {
1060            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1061
1062#if 0
1063            if (env->ExceptionCheck())
1064                threadExitUncaughtException(env);
1065#endif
1066        }
1067    }
1068    free(slashClassName);
1069
1070    ALOGD("Shutting down VM\n");
1071    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1072        ALOGW("Warning: unable to detach main thread\n");
1073    if (mJavaVM->DestroyJavaVM() != 0)
1074        ALOGW("Warning: VM did not shut down cleanly\n");
1075}
1076
1077void AndroidRuntime::exit(int code)
1078{
1079    if (mExitWithoutCleanup) {
1080        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1081        ::_exit(code);
1082    } else {
1083        ALOGI("VM exiting with result code %d.", code);
1084        onExit(code);
1085        ::exit(code);
1086    }
1087}
1088
1089void AndroidRuntime::onVmCreated(JNIEnv* env)
1090{
1091    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1092}
1093
1094/*
1095 * Get the JNIEnv pointer for this thread.
1096 *
1097 * Returns NULL if the slot wasn't allocated or populated.
1098 */
1099/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1100{
1101    JNIEnv* env;
1102    JavaVM* vm = AndroidRuntime::getJavaVM();
1103    assert(vm != NULL);
1104
1105    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1106        return NULL;
1107    return env;
1108}
1109
1110/*
1111 * Makes the current thread visible to the VM.
1112 *
1113 * The JNIEnv pointer returned is only valid for the current thread, and
1114 * thus must be tucked into thread-local storage.
1115 */
1116static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1117{
1118    JavaVMAttachArgs args;
1119    JavaVM* vm;
1120    jint result;
1121
1122    vm = AndroidRuntime::getJavaVM();
1123    assert(vm != NULL);
1124
1125    args.version = JNI_VERSION_1_4;
1126    args.name = (char*) threadName;
1127    args.group = NULL;
1128
1129    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1130    if (result != JNI_OK)
1131        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1132
1133    return result;
1134}
1135
1136/*
1137 * Detach the current thread from the set visible to the VM.
1138 */
1139static int javaDetachThread(void)
1140{
1141    JavaVM* vm;
1142    jint result;
1143
1144    vm = AndroidRuntime::getJavaVM();
1145    assert(vm != NULL);
1146
1147    result = vm->DetachCurrentThread();
1148    if (result != JNI_OK)
1149        ALOGE("ERROR: thread detach failed\n");
1150    return result;
1151}
1152
1153/*
1154 * When starting a native thread that will be visible from the VM, we
1155 * bounce through this to get the right attach/detach action.
1156 * Note that this function calls free(args)
1157 */
1158/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1159    void* start = ((void**)args)[0];
1160    void* userData = ((void **)args)[1];
1161    char* name = (char*) ((void **)args)[2];        // we own this storage
1162    free(args);
1163    JNIEnv* env;
1164    int result;
1165
1166    /* hook us into the VM */
1167    if (javaAttachThread(name, &env) != JNI_OK)
1168        return -1;
1169
1170    /* start the thread running */
1171    result = (*(android_thread_func_t)start)(userData);
1172
1173    /* unhook us */
1174    javaDetachThread();
1175    free(name);
1176
1177    return result;
1178}
1179
1180/*
1181 * This is invoked from androidCreateThreadEtc() via the callback
1182 * set with androidSetCreateThreadFunc().
1183 *
1184 * We need to create the new thread in such a way that it gets hooked
1185 * into the VM before it really starts executing.
1186 */
1187/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1188                                android_thread_func_t entryFunction,
1189                                void* userData,
1190                                const char* threadName,
1191                                int32_t threadPriority,
1192                                size_t threadStackSize,
1193                                android_thread_id_t* threadId)
1194{
1195    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1196    int result;
1197
1198    LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1199
1200    args[0] = (void*) entryFunction;
1201    args[1] = userData;
1202    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1203
1204    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1205        threadName, threadPriority, threadStackSize, threadId);
1206    return result;
1207}
1208
1209/*
1210 * Create a thread that is visible from the VM.
1211 *
1212 * This is called from elsewhere in the library.
1213 */
1214/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1215    void (*start)(void *), void* arg)
1216{
1217    android_thread_id_t threadId = 0;
1218    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1219        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1220    return threadId;
1221}
1222
1223#if 0
1224static void quickTest(void* arg)
1225{
1226    const char* str = (const char*) arg;
1227
1228    printf("In quickTest: %s\n", str);
1229}
1230#endif
1231
1232#ifdef NDEBUG
1233    #define REG_JNI(name)      { name }
1234    struct RegJNIRec {
1235        int (*mProc)(JNIEnv*);
1236    };
1237#else
1238    #define REG_JNI(name)      { name, #name }
1239    struct RegJNIRec {
1240        int (*mProc)(JNIEnv*);
1241        const char* mName;
1242    };
1243#endif
1244
1245typedef void (*RegJAMProc)();
1246
1247static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1248{
1249    for (size_t i = 0; i < count; i++) {
1250        if (array[i].mProc(env) < 0) {
1251#ifndef NDEBUG
1252            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1253#endif
1254            return -1;
1255        }
1256    }
1257    return 0;
1258}
1259
1260static const RegJNIRec gRegJNI[] = {
1261    REG_JNI(register_com_android_internal_os_RuntimeInit),
1262    REG_JNI(register_android_os_SystemClock),
1263    REG_JNI(register_android_util_EventLog),
1264    REG_JNI(register_android_util_Log),
1265    REG_JNI(register_android_util_MemoryIntArray),
1266    REG_JNI(register_android_util_PathParser),
1267    REG_JNI(register_android_app_admin_SecurityLog),
1268    REG_JNI(register_android_content_AssetManager),
1269    REG_JNI(register_android_content_StringBlock),
1270    REG_JNI(register_android_content_XmlBlock),
1271    REG_JNI(register_android_text_AndroidCharacter),
1272    REG_JNI(register_android_text_StaticLayout),
1273    REG_JNI(register_android_text_AndroidBidi),
1274    REG_JNI(register_android_view_InputDevice),
1275    REG_JNI(register_android_view_KeyCharacterMap),
1276    REG_JNI(register_android_os_Process),
1277    REG_JNI(register_android_os_SystemProperties),
1278    REG_JNI(register_android_os_Binder),
1279    REG_JNI(register_android_os_Parcel),
1280    REG_JNI(register_android_nio_utils),
1281    REG_JNI(register_android_graphics_Canvas),
1282    REG_JNI(register_android_graphics_Graphics),
1283    REG_JNI(register_android_view_DisplayEventReceiver),
1284    REG_JNI(register_android_view_RenderNode),
1285    REG_JNI(register_android_view_RenderNodeAnimator),
1286    REG_JNI(register_android_view_GraphicBuffer),
1287    REG_JNI(register_android_view_DisplayListCanvas),
1288    REG_JNI(register_android_view_HardwareLayer),
1289    REG_JNI(register_android_view_ThreadedRenderer),
1290    REG_JNI(register_android_view_Surface),
1291    REG_JNI(register_android_view_SurfaceControl),
1292    REG_JNI(register_android_view_SurfaceSession),
1293    REG_JNI(register_android_view_TextureView),
1294    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1295    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1296    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1297    REG_JNI(register_android_opengl_jni_EGL14),
1298    REG_JNI(register_android_opengl_jni_EGLExt),
1299    REG_JNI(register_android_opengl_jni_GLES10),
1300    REG_JNI(register_android_opengl_jni_GLES10Ext),
1301    REG_JNI(register_android_opengl_jni_GLES11),
1302    REG_JNI(register_android_opengl_jni_GLES11Ext),
1303    REG_JNI(register_android_opengl_jni_GLES20),
1304    REG_JNI(register_android_opengl_jni_GLES30),
1305    REG_JNI(register_android_opengl_jni_GLES31),
1306    REG_JNI(register_android_opengl_jni_GLES31Ext),
1307    REG_JNI(register_android_opengl_jni_GLES32),
1308
1309    REG_JNI(register_android_graphics_Bitmap),
1310    REG_JNI(register_android_graphics_BitmapFactory),
1311    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1312    REG_JNI(register_android_graphics_Camera),
1313    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1314    REG_JNI(register_android_graphics_CanvasProperty),
1315    REG_JNI(register_android_graphics_ColorFilter),
1316    REG_JNI(register_android_graphics_DrawFilter),
1317    REG_JNI(register_android_graphics_FontFamily),
1318    REG_JNI(register_android_graphics_Interpolator),
1319    REG_JNI(register_android_graphics_LayerRasterizer),
1320    REG_JNI(register_android_graphics_MaskFilter),
1321    REG_JNI(register_android_graphics_Matrix),
1322    REG_JNI(register_android_graphics_Movie),
1323    REG_JNI(register_android_graphics_NinePatch),
1324    REG_JNI(register_android_graphics_Paint),
1325    REG_JNI(register_android_graphics_Path),
1326    REG_JNI(register_android_graphics_PathMeasure),
1327    REG_JNI(register_android_graphics_PathEffect),
1328    REG_JNI(register_android_graphics_Picture),
1329    REG_JNI(register_android_graphics_PorterDuff),
1330    REG_JNI(register_android_graphics_Rasterizer),
1331    REG_JNI(register_android_graphics_Region),
1332    REG_JNI(register_android_graphics_Shader),
1333    REG_JNI(register_android_graphics_SurfaceTexture),
1334    REG_JNI(register_android_graphics_Typeface),
1335    REG_JNI(register_android_graphics_Xfermode),
1336    REG_JNI(register_android_graphics_YuvImage),
1337    REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
1338    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1339    REG_JNI(register_android_graphics_pdf_PdfDocument),
1340    REG_JNI(register_android_graphics_pdf_PdfEditor),
1341    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1342
1343    REG_JNI(register_android_database_CursorWindow),
1344    REG_JNI(register_android_database_SQLiteConnection),
1345    REG_JNI(register_android_database_SQLiteGlobal),
1346    REG_JNI(register_android_database_SQLiteDebug),
1347    REG_JNI(register_android_os_Debug),
1348    REG_JNI(register_android_os_FileObserver),
1349    REG_JNI(register_android_os_MessageQueue),
1350    REG_JNI(register_android_os_SELinux),
1351    REG_JNI(register_android_os_Trace),
1352    REG_JNI(register_android_os_UEventObserver),
1353    REG_JNI(register_android_net_LocalSocketImpl),
1354    REG_JNI(register_android_net_NetworkUtils),
1355    REG_JNI(register_android_net_TrafficStats),
1356    REG_JNI(register_android_os_MemoryFile),
1357    REG_JNI(register_com_android_internal_os_PathClassLoaderFactory),
1358    REG_JNI(register_com_android_internal_os_Zygote),
1359    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1360    REG_JNI(register_android_hardware_Camera),
1361    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1362    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1363    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1364    REG_JNI(register_android_hardware_camera2_DngCreator),
1365    REG_JNI(register_android_hardware_Radio),
1366    REG_JNI(register_android_hardware_SensorManager),
1367    REG_JNI(register_android_hardware_SerialPort),
1368    REG_JNI(register_android_hardware_SoundTrigger),
1369    REG_JNI(register_android_hardware_UsbDevice),
1370    REG_JNI(register_android_hardware_UsbDeviceConnection),
1371    REG_JNI(register_android_hardware_UsbRequest),
1372    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1373    REG_JNI(register_android_hardware_location_ContextHubService),
1374    REG_JNI(register_android_media_AudioRecord),
1375    REG_JNI(register_android_media_AudioSystem),
1376    REG_JNI(register_android_media_AudioTrack),
1377    REG_JNI(register_android_media_JetPlayer),
1378    REG_JNI(register_android_media_RemoteDisplay),
1379    REG_JNI(register_android_media_ToneGenerator),
1380
1381    REG_JNI(register_android_opengl_classes),
1382    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1383    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1384    REG_JNI(register_android_backup_BackupDataInput),
1385    REG_JNI(register_android_backup_BackupDataOutput),
1386    REG_JNI(register_android_backup_FileBackupHelperBase),
1387    REG_JNI(register_android_backup_BackupHelperDispatcher),
1388    REG_JNI(register_android_app_backup_FullBackup),
1389    REG_JNI(register_android_app_Activity),
1390    REG_JNI(register_android_app_ActivityThread),
1391    REG_JNI(register_android_app_NativeActivity),
1392    REG_JNI(register_android_util_jar_StrictJarFile),
1393    REG_JNI(register_android_view_InputChannel),
1394    REG_JNI(register_android_view_InputEventReceiver),
1395    REG_JNI(register_android_view_InputEventSender),
1396    REG_JNI(register_android_view_InputQueue),
1397    REG_JNI(register_android_view_KeyEvent),
1398    REG_JNI(register_android_view_MotionEvent),
1399    REG_JNI(register_android_view_PointerIcon),
1400    REG_JNI(register_android_view_VelocityTracker),
1401
1402    REG_JNI(register_android_content_res_ObbScanner),
1403    REG_JNI(register_android_content_res_Configuration),
1404
1405    REG_JNI(register_android_animation_PropertyValuesHolder),
1406    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1407    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1408
1409};
1410
1411/*
1412 * Register android native functions with the VM.
1413 */
1414/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1415{
1416    ATRACE_NAME("RegisterAndroidNatives");
1417    /*
1418     * This hook causes all future threads created in this process to be
1419     * attached to the JavaVM.  (This needs to go away in favor of JNI
1420     * Attach calls.)
1421     */
1422    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1423
1424    ALOGV("--- registering native functions ---\n");
1425
1426    /*
1427     * Every "register" function calls one or more things that return
1428     * a local reference (e.g. FindClass).  Because we haven't really
1429     * started the VM yet, they're all getting stored in the base frame
1430     * and never released.  Use Push/Pop to manage the storage.
1431     */
1432    env->PushLocalFrame(200);
1433
1434    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1435        env->PopLocalFrame(NULL);
1436        return -1;
1437    }
1438    env->PopLocalFrame(NULL);
1439
1440    //createJavaThread("fubar", quickTest, (void*) "hello");
1441
1442    return 0;
1443}
1444
1445AndroidRuntime* AndroidRuntime::getRuntime()
1446{
1447    return gCurRuntime;
1448}
1449
1450/**
1451 * Used by surface flinger's DdmConnection to register native methods from
1452 * the framework.
1453 */
1454extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1455    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1456}
1457}   // namespace android
1458