AndroidRuntime.cpp revision 4449ef5b6a85ef4e16dbd5d939db7b11eac0b586 
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_AnimatedVectorDrawable(JNIEnv* env);
135extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
136extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
137extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
138extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
139extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
140extern int register_android_view_DisplayListCanvas(JNIEnv* env);
141extern int register_android_view_GraphicBuffer(JNIEnv* env);
142extern int register_android_view_HardwareLayer(JNIEnv* env);
143extern int register_android_view_RenderNode(JNIEnv* env);
144extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
145extern int register_android_view_Surface(JNIEnv* env);
146extern int register_android_view_SurfaceControl(JNIEnv* env);
147extern int register_android_view_SurfaceSession(JNIEnv* env);
148extern int register_android_view_TextureView(JNIEnv* env);
149extern int register_android_view_ThreadedRenderer(JNIEnv* env);
150extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
151extern int register_android_database_CursorWindow(JNIEnv* env);
152extern int register_android_database_SQLiteConnection(JNIEnv* env);
153extern int register_android_database_SQLiteGlobal(JNIEnv* env);
154extern int register_android_database_SQLiteDebug(JNIEnv* env);
155extern int register_android_nio_utils(JNIEnv* env);
156extern int register_android_os_Debug(JNIEnv* env);
157extern int register_android_os_MessageQueue(JNIEnv* env);
158extern int register_android_os_Parcel(JNIEnv* env);
159extern int register_android_os_SELinux(JNIEnv* env);
160extern int register_android_os_SystemProperties(JNIEnv *env);
161extern int register_android_os_SystemClock(JNIEnv* env);
162extern int register_android_os_Trace(JNIEnv* env);
163extern int register_android_os_FileObserver(JNIEnv *env);
164extern int register_android_os_UEventObserver(JNIEnv* env);
165extern int register_android_os_MemoryFile(JNIEnv* env);
166extern int register_android_net_LocalSocketImpl(JNIEnv* env);
167extern int register_android_net_NetworkUtils(JNIEnv* env);
168extern int register_android_net_TrafficStats(JNIEnv* env);
169extern int register_android_text_AndroidCharacter(JNIEnv *env);
170extern int register_android_text_StaticLayout(JNIEnv *env);
171extern int register_android_text_AndroidBidi(JNIEnv *env);
172extern int register_android_opengl_classes(JNIEnv *env);
173extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
174extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
175extern int register_android_backup_BackupDataInput(JNIEnv *env);
176extern int register_android_backup_BackupDataOutput(JNIEnv *env);
177extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
178extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
179extern int register_android_app_backup_FullBackup(JNIEnv *env);
180extern int register_android_app_ApplicationLoaders(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_Zygote(JNIEnv *env);
202extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
203
204static AndroidRuntime* gCurRuntime = NULL;
205
206/*
207 * Code written in the Java Programming Language calls here from main().
208 */
209static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
210{
211    gCurRuntime->onStarted();
212}
213
214static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
215{
216    gCurRuntime->onZygoteInit();
217}
218
219static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
220        jobject clazz, jboolean exitWithoutCleanup)
221{
222    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
223}
224
225/*
226 * JNI registration.
227 */
228static const JNINativeMethod gMethods[] = {
229    { "nativeFinishInit", "()V",
230        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
231    { "nativeZygoteInit", "()V",
232        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
233    { "nativeSetExitWithoutCleanup", "(Z)V",
234        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
235};
236
237int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
238{
239    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
240        gMethods, NELEM(gMethods));
241}
242
243// ----------------------------------------------------------------------
244
245/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
246
247AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
248        mExitWithoutCleanup(false),
249        mArgBlockStart(argBlockStart),
250        mArgBlockLength(argBlockLength)
251{
252    SkGraphics::Init();
253    // There is also a global font cache, but its budget is specified by
254    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
255
256    // Pre-allocate enough space to hold a fair number of options.
257    mOptions.setCapacity(20);
258
259    assert(gCurRuntime == NULL);        // one per process
260    gCurRuntime = this;
261}
262
263AndroidRuntime::~AndroidRuntime()
264{
265    SkGraphics::Term();
266}
267
268/*
269 * Register native methods using JNI.
270 */
271/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
272    const char* className, const JNINativeMethod* gMethods, int numMethods)
273{
274    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
275}
276
277void AndroidRuntime::setArgv0(const char* argv0) {
278    memset(mArgBlockStart, 0, mArgBlockLength);
279    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
280}
281
282status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
283    const Vector<String8>& args)
284{
285    JNIEnv* env;
286    jmethodID methodId;
287
288    ALOGD("Calling main entry %s", className.string());
289
290    env = getJNIEnv();
291    if (clazz == NULL || env == NULL) {
292        return UNKNOWN_ERROR;
293    }
294
295    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
296    if (methodId == NULL) {
297        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
298        return UNKNOWN_ERROR;
299    }
300
301    /*
302     * We want to call main() with a String array with our arguments in it.
303     * Create an array and populate it.
304     */
305    jclass stringClass;
306    jobjectArray strArray;
307
308    const size_t numArgs = args.size();
309    stringClass = env->FindClass("java/lang/String");
310    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
311
312    for (size_t i = 0; i < numArgs; i++) {
313        jstring argStr = env->NewStringUTF(args[i].string());
314        env->SetObjectArrayElement(strArray, i, argStr);
315    }
316
317    env->CallStaticVoidMethod(clazz, methodId, strArray);
318    return NO_ERROR;
319}
320
321/*
322 * The VM calls this through the "exit" hook.
323 */
324static void runtime_exit(int code)
325{
326    gCurRuntime->exit(code);
327}
328
329/*
330 * The VM calls this through the "vfprintf" hook.
331 *
332 * We ignore "fp" and just write the results to the log file.
333 */
334static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
335{
336    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
337}
338
339/**
340 * The VM calls this when mutex contention debugging is enabled to
341 * determine whether or not the blocked thread was a "sensitive thread"
342 * for user responsiveness/smoothess.
343 *
344 * Our policy for this is whether or not we're tracing any StrictMode
345 * events on this thread (which we might've inherited via Binder calls
346 * into us)
347 */
348static bool runtime_isSensitiveThread() {
349    IPCThreadState* state = IPCThreadState::selfOrNull();
350    return state && state->getStrictModePolicy() != 0;
351}
352
353static int hasDir(const char* dir)
354{
355    struct stat s;
356    int res = stat(dir, &s);
357    if (res == 0) {
358        return S_ISDIR(s.st_mode);
359    }
360    return 0;
361}
362
363static bool hasFile(const char* file) {
364    struct stat s;
365    int res = stat(file, &s);
366    if (res == 0) {
367        return S_ISREG(s.st_mode);
368    }
369    return false;
370}
371
372// Convenience wrapper over the property API that returns an
373// std::string.
374std::string getProperty(const char* key, const char* defaultValue) {
375    std::vector<char> temp(PROPERTY_VALUE_MAX);
376    const int len = property_get(key, &temp[0], defaultValue);
377    if (len < 0) {
378        return "";
379    }
380    return std::string(&temp[0], len);
381}
382
383/*
384 * Read the persistent locale. Inspects the following system properties
385 * (in order) and returns the first non-empty property in the list :
386 *
387 * (1) persist.sys.locale
388 * (2) persist.sys.language/country/localevar (country and localevar are
389 * inspected iff. language is non-empty.
390 * (3) ro.product.locale
391 * (4) ro.product.locale.language/region
392 *
393 * Note that we need to inspect persist.sys.language/country/localevar to
394 * preserve language settings for devices that are upgrading from Lollipop
395 * to M. The same goes for ro.product.locale.language/region as well.
396 */
397const std::string readLocale()
398{
399    const std::string locale = getProperty("persist.sys.locale", "");
400    if (!locale.empty()) {
401        return locale;
402    }
403
404    const std::string language = getProperty("persist.sys.language", "");
405    if (!language.empty()) {
406        const std::string country = getProperty("persist.sys.country", "");
407        const std::string variant = getProperty("persist.sys.localevar", "");
408
409        std::string out = language;
410        if (!country.empty()) {
411            out = out + "-" + country;
412        }
413
414        if (!variant.empty()) {
415            out = out + "-" + variant;
416        }
417
418        return out;
419    }
420
421    const std::string productLocale = getProperty("ro.product.locale", "");
422    if (!productLocale.empty()) {
423        return productLocale;
424    }
425
426    // If persist.sys.locale and ro.product.locale are missing,
427    // construct a locale value from the individual locale components.
428    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
429    const std::string productRegion = getProperty("ro.product.locale.region", "US");
430
431    return productLanguage + "-" + productRegion;
432}
433
434void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
435{
436    JavaVMOption opt;
437    opt.optionString = optionString;
438    opt.extraInfo = extraInfo;
439    mOptions.add(opt);
440}
441
442/*
443 * Parse a property containing space-separated options that should be
444 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
445 *
446 * This will cut up "extraOptsBuf" as we chop it into individual options.
447 *
448 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
449 *
450 * Adds the strings, if any, to mOptions.
451 */
452void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
453{
454    char* start = extraOptsBuf;
455    char* end = NULL;
456    while (*start != '\0') {
457        while (*start == ' ')                   /* skip leading whitespace */
458            start++;
459        if (*start == '\0')                     /* was trailing ws, bail */
460            break;
461
462        end = start+1;
463        while (*end != ' ' && *end != '\0')     /* find end of token */
464            end++;
465        if (*end == ' ')
466            *end++ = '\0';          /* mark end, advance to indicate more */
467
468        if (quotingArg != NULL) {
469            addOption(quotingArg);
470        }
471        addOption(start);
472        start = end;
473    }
474}
475
476/*
477 * Reads a "property" into "buffer" with a default of "defaultArg". If
478 * the property is non-empty, it is treated as a runtime option such
479 * as "-Xmx32m".
480 *
481 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
482 *
483 * If an argument is found, it is added to mOptions.
484 *
485 * If an option is found, it is added to mOptions and true is
486 * returned. Otherwise false is returned.
487 */
488bool AndroidRuntime::parseRuntimeOption(const char* property,
489                                        char* buffer,
490                                        const char* runtimeArg,
491                                        const char* defaultArg)
492{
493    strcpy(buffer, runtimeArg);
494    size_t runtimeArgLen = strlen(runtimeArg);
495    property_get(property, buffer+runtimeArgLen, defaultArg);
496    if (buffer[runtimeArgLen] == '\0') {
497        return false;
498    }
499    addOption(buffer);
500    return true;
501}
502
503/*
504 * Reads a "property" into "buffer". If the property is non-empty, it
505 * is treated as a dex2oat compiler option that should be
506 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
507 *
508 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
509 *
510 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
511 *
512 * If an option is found, it is added to mOptions and true is
513 * returned. Otherwise false is returned.
514 */
515bool AndroidRuntime::parseCompilerOption(const char* property,
516                                         char* buffer,
517                                         const char* compilerArg,
518                                         const char* quotingArg)
519{
520    strcpy(buffer, compilerArg);
521    size_t compilerArgLen = strlen(compilerArg);
522    property_get(property, buffer+compilerArgLen, "");
523    if (buffer[compilerArgLen] == '\0') {
524        return false;
525    }
526    addOption(quotingArg);
527    addOption(buffer);
528    return true;
529}
530
531/*
532 * Reads a "property" into "buffer". If the property is non-empty, it
533 * is treated as a dex2oat compiler runtime option that should be
534 * passed as a quoted option, e.g. "-Ximage-compiler-option
535 * --runtime-arg -Ximage-compiler-option -Xmx32m".
536 *
537 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
538 *
539 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
540 *
541 * If an option is found, it is added to mOptions and true is
542 * returned. Otherwise false is returned.
543 */
544bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
545                                                char* buffer,
546                                                const char* runtimeArg,
547                                                const char* quotingArg)
548{
549    strcpy(buffer, runtimeArg);
550    size_t runtimeArgLen = strlen(runtimeArg);
551    property_get(property, buffer+runtimeArgLen, "");
552    if (buffer[runtimeArgLen] == '\0') {
553        return false;
554    }
555    addOption(quotingArg);
556    addOption("--runtime-arg");
557    addOption(quotingArg);
558    addOption(buffer);
559    return true;
560}
561
562/*
563 * Start the Dalvik Virtual Machine.
564 *
565 * Various arguments, most determined by system properties, are passed in.
566 * The "mOptions" vector is updated.
567 *
568 * CAUTION: when adding options in here, be careful not to put the
569 * char buffer inside a nested scope.  Adding the buffer to the
570 * options using mOptions.add() does not copy the buffer, so if the
571 * buffer goes out of scope the option may be overwritten.  It's best
572 * to put the buffer at the top of the function so that it is more
573 * unlikely that someone will surround it in a scope at a later time
574 * and thus introduce a bug.
575 *
576 * Returns 0 on success.
577 */
578int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
579{
580    JavaVMInitArgs initArgs;
581    char propBuf[PROPERTY_VALUE_MAX];
582    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
583    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
584    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
585    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
586    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
587    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
588    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
589    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
590    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
591    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
592    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
593    char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
594    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
595    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
596    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
597    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
598    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
599    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
600    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
601    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
602    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
603    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
604    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
605    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
606    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
607    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
608    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
609    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
610    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
611    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
612    char extraOptsBuf[PROPERTY_VALUE_MAX];
613    char voldDecryptBuf[PROPERTY_VALUE_MAX];
614    enum {
615      kEMDefault,
616      kEMIntPortable,
617      kEMIntFast,
618      kEMJitCompiler,
619    } executionMode = kEMDefault;
620    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
621    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
622    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
623    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
624    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
625    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
626    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
627
628    bool checkJni = false;
629    property_get("dalvik.vm.checkjni", propBuf, "");
630    if (strcmp(propBuf, "true") == 0) {
631        checkJni = true;
632    } else if (strcmp(propBuf, "false") != 0) {
633        /* property is neither true nor false; fall back on kernel parameter */
634        property_get("ro.kernel.android.checkjni", propBuf, "");
635        if (propBuf[0] == '1') {
636            checkJni = true;
637        }
638    }
639    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
640    if (checkJni) {
641        /* extended JNI checking */
642        addOption("-Xcheck:jni");
643
644        /* with -Xcheck:jni, this provides a JNI function call trace */
645        //addOption("-verbose:jni");
646    }
647
648    property_get("dalvik.vm.execution-mode", propBuf, "");
649    if (strcmp(propBuf, "int:portable") == 0) {
650        executionMode = kEMIntPortable;
651    } else if (strcmp(propBuf, "int:fast") == 0) {
652        executionMode = kEMIntFast;
653    } else if (strcmp(propBuf, "int:jit") == 0) {
654        executionMode = kEMJitCompiler;
655    }
656
657    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
658
659    strcpy(jniOptsBuf, "-Xjniopts:");
660    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
661        ALOGI("JNI options: '%s'\n", jniOptsBuf);
662    }
663
664    /* route exit() to our handler */
665    addOption("exit", (void*) runtime_exit);
666
667    /* route fprintf() to our handler */
668    addOption("vfprintf", (void*) runtime_vfprintf);
669
670    /* register the framework-specific "is sensitive thread" hook */
671    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
672
673    /* enable verbose; standard options are { jni, gc, class } */
674    //addOption("-verbose:jni");
675    addOption("-verbose:gc");
676    //addOption("-verbose:class");
677
678    /*
679     * The default starting and maximum size of the heap.  Larger
680     * values should be specified in a product property override.
681     */
682    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
683    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
684
685    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
686    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
687    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
688    parseRuntimeOption("dalvik.vm.heaptargetutilization",
689                       heaptargetutilizationOptsBuf,
690                       "-XX:HeapTargetUtilization=");
691
692    /*
693     * JIT related options.
694     */
695    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
696    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
697    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
698    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
699    property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
700    if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
701        addOption("-Xjitsaveprofilinginfo");
702    }
703
704    property_get("ro.config.low_ram", propBuf, "");
705    if (strcmp(propBuf, "true") == 0) {
706      addOption("-XX:LowMemoryMode");
707    }
708
709    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
710    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
711
712    /*
713     * Enable debugging only for apps forked from zygote.
714     * Set suspend=y to pause during VM init and use android ADB transport.
715     */
716    if (zygote) {
717      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
718    }
719
720    parseRuntimeOption("dalvik.vm.lockprof.threshold",
721                       lockProfThresholdBuf,
722                       "-Xlockprofthreshold:");
723
724    if (executionMode == kEMIntPortable) {
725        addOption("-Xint:portable");
726    } else if (executionMode == kEMIntFast) {
727        addOption("-Xint:fast");
728    } else if (executionMode == kEMJitCompiler) {
729        addOption("-Xint:jit");
730    }
731
732    // If we are booting without the real /data, don't spend time compiling.
733    property_get("vold.decrypt", voldDecryptBuf, "");
734    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
735                             (strcmp(voldDecryptBuf, "1") == 0));
736
737    // Extra options for boot.art/boot.oat image generation.
738    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
739                               "-Xms", "-Ximage-compiler-option");
740    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
741                               "-Xmx", "-Ximage-compiler-option");
742    if (skip_compilation) {
743        addOption("-Ximage-compiler-option");
744        addOption("--compiler-filter=verify-none");
745    } else {
746        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
747                            "--compiler-filter=", "-Ximage-compiler-option");
748    }
749
750    // Make sure there is a preloaded-classes file.
751    if (!hasFile("/system/etc/preloaded-classes")) {
752        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
753              strerror(errno));
754        return -1;
755    }
756    addOption("-Ximage-compiler-option");
757    addOption("--image-classes=/system/etc/preloaded-classes");
758
759    // If there is a compiled-classes file, push it.
760    if (hasFile("/system/etc/compiled-classes")) {
761        addOption("-Ximage-compiler-option");
762        addOption("--compiled-classes=/system/etc/compiled-classes");
763    }
764
765    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
766    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
767
768    // Extra options for DexClassLoader.
769    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
770                               "-Xms", "-Xcompiler-option");
771    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
772                               "-Xmx", "-Xcompiler-option");
773    if (skip_compilation) {
774        addOption("-Xcompiler-option");
775        addOption("--compiler-filter=verify-none");
776
777        // We skip compilation when a minimal runtime is brought up for decryption. In that case
778        // /data is temporarily backed by a tmpfs, which is usually small.
779        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
780        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
781        // directly instead.
782        addOption("--runtime-arg");
783        addOption("-Xnorelocate");
784    } else {
785        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
786                            "--compiler-filter=", "-Xcompiler-option");
787    }
788    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
789    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
790                        "-Ximage-compiler-option");
791
792    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
793    // pass the instruction-set-features/variant as an image-compiler-option.
794    // TODO: Find a better way for the instruction-set.
795#if defined(__arm__)
796    constexpr const char* instruction_set = "arm";
797#elif defined(__aarch64__)
798    constexpr const char* instruction_set = "arm64";
799#elif defined(__mips__) && !defined(__LP64__)
800    constexpr const char* instruction_set = "mips";
801#elif defined(__mips__) && defined(__LP64__)
802    constexpr const char* instruction_set = "mips64";
803#elif defined(__i386__)
804    constexpr const char* instruction_set = "x86";
805#elif defined(__x86_64__)
806    constexpr const char* instruction_set = "x86_64";
807#else
808    constexpr const char* instruction_set = "unknown";
809#endif
810    // Note: it is OK to reuse the buffer, as the values are exactly the same between
811    //       * compiler-option, used for runtime compilation (DexClassLoader)
812    //       * image-compiler-option, used for boot-image compilation on device
813
814    // Copy the variant.
815    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
816    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
817                        "--instruction-set-variant=", "-Ximage-compiler-option");
818    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
819                        "--instruction-set-variant=", "-Xcompiler-option");
820    // Copy the features.
821    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
822    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
823                        "--instruction-set-features=", "-Ximage-compiler-option");
824    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
825                        "--instruction-set-features=", "-Xcompiler-option");
826
827
828    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
829    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
830
831    /* extra options; parse this late so it overrides others */
832    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
833    parseExtraOpts(extraOptsBuf, NULL);
834
835    /* Set the properties for locale */
836    {
837        strcpy(localeOption, "-Duser.locale=");
838        const std::string locale = readLocale();
839        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
840        addOption(localeOption);
841    }
842
843    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
844    property_get("ro.debuggable", propBuf, "0");
845    if (strcmp(propBuf, "1") == 0) {
846        property_get("dalvik.vm.method-trace", propBuf, "false");
847        if (strcmp(propBuf, "true") == 0) {
848            addOption("-Xmethod-trace");
849            parseRuntimeOption("dalvik.vm.method-trace-file",
850                               methodTraceFileBuf,
851                               "-Xmethod-trace-file:");
852            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
853                               methodTraceFileSizeBuf,
854                               "-Xmethod-trace-file-size:");
855            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
856            if (strcmp(propBuf, "true") == 0) {
857                addOption("-Xmethod-trace-stream");
858            }
859        }
860    }
861
862    // Native bridge library. "0" means that native bridge is disabled.
863    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
864    if (propBuf[0] == '\0') {
865        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
866    } else if (strcmp(propBuf, "0") != 0) {
867        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
868                 "-XX:NativeBridge=%s", propBuf);
869        addOption(nativeBridgeLibrary);
870    }
871
872#if defined(__LP64__)
873    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
874#else
875    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
876#endif  // defined(__LP64__)
877    property_get(cpu_abilist_property_name, propBuf, "");
878    if (propBuf[0] == '\0') {
879        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
880        return -1;
881    }
882    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
883    addOption(cpuAbiListBuf);
884
885    // Dalvik-cache pruning counter.
886    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
887                       "-Xzygote-max-boot-retry=");
888
889    /*
890     * When running with debug.generate-debug-info, add --generate-debug-info to
891     * the compiler options so that the boot image, if it is compiled on device,
892     * will include native debugging information.
893     */
894    property_get("debug.generate-debug-info", propBuf, "");
895    if (strcmp(propBuf, "true") == 0) {
896        addOption("-Xcompiler-option");
897        addOption("--generate-debug-info");
898        addOption("-Ximage-compiler-option");
899        addOption("--generate-debug-info");
900    }
901
902    /*
903     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
904     * contain the fingerprint and can be parsed.
905     */
906    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
907
908    initArgs.version = JNI_VERSION_1_4;
909    initArgs.options = mOptions.editArray();
910    initArgs.nOptions = mOptions.size();
911    initArgs.ignoreUnrecognized = JNI_FALSE;
912
913    /*
914     * Initialize the VM.
915     *
916     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
917     * If this call succeeds, the VM is ready, and we can start issuing
918     * JNI calls.
919     */
920    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
921        ALOGE("JNI_CreateJavaVM failed\n");
922        return -1;
923    }
924
925    return 0;
926}
927
928char* AndroidRuntime::toSlashClassName(const char* className)
929{
930    char* result = strdup(className);
931    for (char* cp = result; *cp != '\0'; cp++) {
932        if (*cp == '.') {
933            *cp = '/';
934        }
935    }
936    return result;
937}
938
939/** Create a Java string from an ASCII or Latin-1 string */
940jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
941    if (!bytes) return NULL;
942    int length = strlen(bytes);
943    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
944    if (!buffer) return NULL;
945    jchar* chp = buffer;
946    for (int i = 0; i < length; i++) {
947        *chp++ = *bytes++;
948    }
949    return env->NewString(buffer, length);
950}
951
952
953/*
954 * Start the Android runtime.  This involves starting the virtual machine
955 * and calling the "static void main(String[] args)" method in the class
956 * named by "className".
957 *
958 * Passes the main function two arguments, the class name and the specified
959 * options string.
960 */
961void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
962{
963    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
964            className != NULL ? className : "(unknown)", getuid());
965
966    static const String8 startSystemServer("start-system-server");
967
968    /*
969     * 'startSystemServer == true' means runtime is obsolete and not run from
970     * init.rc anymore, so we print out the boot start event here.
971     */
972    for (size_t i = 0; i < options.size(); ++i) {
973        if (options[i] == startSystemServer) {
974           /* track our progress through the boot sequence */
975           const int LOG_BOOT_PROGRESS_START = 3000;
976           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
977        }
978    }
979
980    const char* rootDir = getenv("ANDROID_ROOT");
981    if (rootDir == NULL) {
982        rootDir = "/system";
983        if (!hasDir("/system")) {
984            LOG_FATAL("No root directory specified, and /android does not exist.");
985            return;
986        }
987        setenv("ANDROID_ROOT", rootDir, 1);
988    }
989
990    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
991    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
992
993    /* start the virtual machine */
994    JniInvocation jni_invocation;
995    jni_invocation.Init(NULL);
996    JNIEnv* env;
997    if (startVm(&mJavaVM, &env, zygote) != 0) {
998        return;
999    }
1000    onVmCreated(env);
1001
1002    /*
1003     * Register android functions.
1004     */
1005    if (startReg(env) < 0) {
1006        ALOGE("Unable to register all android natives\n");
1007        return;
1008    }
1009
1010    /*
1011     * We want to call main() with a String array with arguments in it.
1012     * At present we have two arguments, the class name and an option string.
1013     * Create an array to hold them.
1014     */
1015    jclass stringClass;
1016    jobjectArray strArray;
1017    jstring classNameStr;
1018
1019    stringClass = env->FindClass("java/lang/String");
1020    assert(stringClass != NULL);
1021    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1022    assert(strArray != NULL);
1023    classNameStr = env->NewStringUTF(className);
1024    assert(classNameStr != NULL);
1025    env->SetObjectArrayElement(strArray, 0, classNameStr);
1026
1027    for (size_t i = 0; i < options.size(); ++i) {
1028        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1029        assert(optionsStr != NULL);
1030        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1031    }
1032
1033    /*
1034     * Start VM.  This thread becomes the main thread of the VM, and will
1035     * not return until the VM exits.
1036     */
1037    char* slashClassName = toSlashClassName(className);
1038    jclass startClass = env->FindClass(slashClassName);
1039    if (startClass == NULL) {
1040        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1041        /* keep going */
1042    } else {
1043        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1044            "([Ljava/lang/String;)V");
1045        if (startMeth == NULL) {
1046            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1047            /* keep going */
1048        } else {
1049            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1050
1051#if 0
1052            if (env->ExceptionCheck())
1053                threadExitUncaughtException(env);
1054#endif
1055        }
1056    }
1057    free(slashClassName);
1058
1059    ALOGD("Shutting down VM\n");
1060    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1061        ALOGW("Warning: unable to detach main thread\n");
1062    if (mJavaVM->DestroyJavaVM() != 0)
1063        ALOGW("Warning: VM did not shut down cleanly\n");
1064}
1065
1066void AndroidRuntime::exit(int code)
1067{
1068    if (mExitWithoutCleanup) {
1069        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1070        ::_exit(code);
1071    } else {
1072        ALOGI("VM exiting with result code %d.", code);
1073        onExit(code);
1074        ::exit(code);
1075    }
1076}
1077
1078void AndroidRuntime::onVmCreated(JNIEnv* env)
1079{
1080    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1081}
1082
1083/*
1084 * Get the JNIEnv pointer for this thread.
1085 *
1086 * Returns NULL if the slot wasn't allocated or populated.
1087 */
1088/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1089{
1090    JNIEnv* env;
1091    JavaVM* vm = AndroidRuntime::getJavaVM();
1092    assert(vm != NULL);
1093
1094    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1095        return NULL;
1096    return env;
1097}
1098
1099/*
1100 * Makes the current thread visible to the VM.
1101 *
1102 * The JNIEnv pointer returned is only valid for the current thread, and
1103 * thus must be tucked into thread-local storage.
1104 */
1105static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1106{
1107    JavaVMAttachArgs args;
1108    JavaVM* vm;
1109    jint result;
1110
1111    vm = AndroidRuntime::getJavaVM();
1112    assert(vm != NULL);
1113
1114    args.version = JNI_VERSION_1_4;
1115    args.name = (char*) threadName;
1116    args.group = NULL;
1117
1118    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1119    if (result != JNI_OK)
1120        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1121
1122    return result;
1123}
1124
1125/*
1126 * Detach the current thread from the set visible to the VM.
1127 */
1128static int javaDetachThread(void)
1129{
1130    JavaVM* vm;
1131    jint result;
1132
1133    vm = AndroidRuntime::getJavaVM();
1134    assert(vm != NULL);
1135
1136    result = vm->DetachCurrentThread();
1137    if (result != JNI_OK)
1138        ALOGE("ERROR: thread detach failed\n");
1139    return result;
1140}
1141
1142/*
1143 * When starting a native thread that will be visible from the VM, we
1144 * bounce through this to get the right attach/detach action.
1145 * Note that this function calls free(args)
1146 */
1147/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1148    void* start = ((void**)args)[0];
1149    void* userData = ((void **)args)[1];
1150    char* name = (char*) ((void **)args)[2];        // we own this storage
1151    free(args);
1152    JNIEnv* env;
1153    int result;
1154
1155    /* hook us into the VM */
1156    if (javaAttachThread(name, &env) != JNI_OK)
1157        return -1;
1158
1159    /* start the thread running */
1160    result = (*(android_thread_func_t)start)(userData);
1161
1162    /* unhook us */
1163    javaDetachThread();
1164    free(name);
1165
1166    return result;
1167}
1168
1169/*
1170 * This is invoked from androidCreateThreadEtc() via the callback
1171 * set with androidSetCreateThreadFunc().
1172 *
1173 * We need to create the new thread in such a way that it gets hooked
1174 * into the VM before it really starts executing.
1175 */
1176/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1177                                android_thread_func_t entryFunction,
1178                                void* userData,
1179                                const char* threadName,
1180                                int32_t threadPriority,
1181                                size_t threadStackSize,
1182                                android_thread_id_t* threadId)
1183{
1184    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1185    int result;
1186
1187    if (!threadName)
1188        threadName = "unnamed thread";
1189
1190    args[0] = (void*) entryFunction;
1191    args[1] = userData;
1192    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1193
1194    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1195        threadName, threadPriority, threadStackSize, threadId);
1196    return result;
1197}
1198
1199/*
1200 * Create a thread that is visible from the VM.
1201 *
1202 * This is called from elsewhere in the library.
1203 */
1204/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1205    void (*start)(void *), void* arg)
1206{
1207    android_thread_id_t threadId = 0;
1208    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1209        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1210    return threadId;
1211}
1212
1213#if 0
1214static void quickTest(void* arg)
1215{
1216    const char* str = (const char*) arg;
1217
1218    printf("In quickTest: %s\n", str);
1219}
1220#endif
1221
1222#ifdef NDEBUG
1223    #define REG_JNI(name)      { name }
1224    struct RegJNIRec {
1225        int (*mProc)(JNIEnv*);
1226    };
1227#else
1228    #define REG_JNI(name)      { name, #name }
1229    struct RegJNIRec {
1230        int (*mProc)(JNIEnv*);
1231        const char* mName;
1232    };
1233#endif
1234
1235typedef void (*RegJAMProc)();
1236
1237static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1238{
1239    for (size_t i = 0; i < count; i++) {
1240        if (array[i].mProc(env) < 0) {
1241#ifndef NDEBUG
1242            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1243#endif
1244            return -1;
1245        }
1246    }
1247    return 0;
1248}
1249
1250static const RegJNIRec gRegJNI[] = {
1251    REG_JNI(register_com_android_internal_os_RuntimeInit),
1252    REG_JNI(register_android_os_SystemClock),
1253    REG_JNI(register_android_util_EventLog),
1254    REG_JNI(register_android_util_Log),
1255    REG_JNI(register_android_util_PathParser),
1256    REG_JNI(register_android_auditing_SecurityLog),
1257    REG_JNI(register_android_content_AssetManager),
1258    REG_JNI(register_android_content_StringBlock),
1259    REG_JNI(register_android_content_XmlBlock),
1260    REG_JNI(register_android_text_AndroidCharacter),
1261    REG_JNI(register_android_text_StaticLayout),
1262    REG_JNI(register_android_text_AndroidBidi),
1263    REG_JNI(register_android_view_InputDevice),
1264    REG_JNI(register_android_view_KeyCharacterMap),
1265    REG_JNI(register_android_os_Process),
1266    REG_JNI(register_android_os_SystemProperties),
1267    REG_JNI(register_android_os_Binder),
1268    REG_JNI(register_android_os_Parcel),
1269    REG_JNI(register_android_nio_utils),
1270    REG_JNI(register_android_graphics_Canvas),
1271    REG_JNI(register_android_graphics_Graphics),
1272    REG_JNI(register_android_view_DisplayEventReceiver),
1273    REG_JNI(register_android_view_RenderNode),
1274    REG_JNI(register_android_view_RenderNodeAnimator),
1275    REG_JNI(register_android_view_GraphicBuffer),
1276    REG_JNI(register_android_view_DisplayListCanvas),
1277    REG_JNI(register_android_view_HardwareLayer),
1278    REG_JNI(register_android_view_ThreadedRenderer),
1279    REG_JNI(register_android_view_Surface),
1280    REG_JNI(register_android_view_SurfaceControl),
1281    REG_JNI(register_android_view_SurfaceSession),
1282    REG_JNI(register_android_view_TextureView),
1283    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1284    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1285    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1286    REG_JNI(register_android_opengl_jni_EGL14),
1287    REG_JNI(register_android_opengl_jni_EGLExt),
1288    REG_JNI(register_android_opengl_jni_GLES10),
1289    REG_JNI(register_android_opengl_jni_GLES10Ext),
1290    REG_JNI(register_android_opengl_jni_GLES11),
1291    REG_JNI(register_android_opengl_jni_GLES11Ext),
1292    REG_JNI(register_android_opengl_jni_GLES20),
1293    REG_JNI(register_android_opengl_jni_GLES30),
1294    REG_JNI(register_android_opengl_jni_GLES31),
1295    REG_JNI(register_android_opengl_jni_GLES31Ext),
1296    REG_JNI(register_android_opengl_jni_GLES32),
1297
1298    REG_JNI(register_android_graphics_Bitmap),
1299    REG_JNI(register_android_graphics_BitmapFactory),
1300    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1301    REG_JNI(register_android_graphics_Camera),
1302    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1303    REG_JNI(register_android_graphics_CanvasProperty),
1304    REG_JNI(register_android_graphics_ColorFilter),
1305    REG_JNI(register_android_graphics_DrawFilter),
1306    REG_JNI(register_android_graphics_FontFamily),
1307    REG_JNI(register_android_graphics_Interpolator),
1308    REG_JNI(register_android_graphics_LayerRasterizer),
1309    REG_JNI(register_android_graphics_MaskFilter),
1310    REG_JNI(register_android_graphics_Matrix),
1311    REG_JNI(register_android_graphics_Movie),
1312    REG_JNI(register_android_graphics_NinePatch),
1313    REG_JNI(register_android_graphics_Paint),
1314    REG_JNI(register_android_graphics_Path),
1315    REG_JNI(register_android_graphics_PathMeasure),
1316    REG_JNI(register_android_graphics_PathEffect),
1317    REG_JNI(register_android_graphics_Picture),
1318    REG_JNI(register_android_graphics_PorterDuff),
1319    REG_JNI(register_android_graphics_Rasterizer),
1320    REG_JNI(register_android_graphics_Region),
1321    REG_JNI(register_android_graphics_Shader),
1322    REG_JNI(register_android_graphics_SurfaceTexture),
1323    REG_JNI(register_android_graphics_Typeface),
1324    REG_JNI(register_android_graphics_Xfermode),
1325    REG_JNI(register_android_graphics_YuvImage),
1326    REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
1327    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1328    REG_JNI(register_android_graphics_pdf_PdfDocument),
1329    REG_JNI(register_android_graphics_pdf_PdfEditor),
1330    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1331
1332    REG_JNI(register_android_database_CursorWindow),
1333    REG_JNI(register_android_database_SQLiteConnection),
1334    REG_JNI(register_android_database_SQLiteGlobal),
1335    REG_JNI(register_android_database_SQLiteDebug),
1336    REG_JNI(register_android_os_Debug),
1337    REG_JNI(register_android_os_FileObserver),
1338    REG_JNI(register_android_os_MessageQueue),
1339    REG_JNI(register_android_os_SELinux),
1340    REG_JNI(register_android_os_Trace),
1341    REG_JNI(register_android_os_UEventObserver),
1342    REG_JNI(register_android_net_LocalSocketImpl),
1343    REG_JNI(register_android_net_NetworkUtils),
1344    REG_JNI(register_android_net_TrafficStats),
1345    REG_JNI(register_android_os_MemoryFile),
1346    REG_JNI(register_com_android_internal_os_Zygote),
1347    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1348    REG_JNI(register_android_hardware_Camera),
1349    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1350    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1351    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1352    REG_JNI(register_android_hardware_camera2_DngCreator),
1353    REG_JNI(register_android_hardware_Radio),
1354    REG_JNI(register_android_hardware_SensorManager),
1355    REG_JNI(register_android_hardware_SerialPort),
1356    REG_JNI(register_android_hardware_SoundTrigger),
1357    REG_JNI(register_android_hardware_UsbDevice),
1358    REG_JNI(register_android_hardware_UsbDeviceConnection),
1359    REG_JNI(register_android_hardware_UsbRequest),
1360    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1361    REG_JNI(register_android_media_AudioRecord),
1362    REG_JNI(register_android_media_AudioSystem),
1363    REG_JNI(register_android_media_AudioTrack),
1364    REG_JNI(register_android_media_JetPlayer),
1365    REG_JNI(register_android_media_RemoteDisplay),
1366    REG_JNI(register_android_media_ToneGenerator),
1367
1368    REG_JNI(register_android_opengl_classes),
1369    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1370    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1371    REG_JNI(register_android_backup_BackupDataInput),
1372    REG_JNI(register_android_backup_BackupDataOutput),
1373    REG_JNI(register_android_backup_FileBackupHelperBase),
1374    REG_JNI(register_android_backup_BackupHelperDispatcher),
1375    REG_JNI(register_android_app_backup_FullBackup),
1376    REG_JNI(register_android_app_ApplicationLoaders),
1377    REG_JNI(register_android_app_Activity),
1378    REG_JNI(register_android_app_ActivityThread),
1379    REG_JNI(register_android_app_NativeActivity),
1380    REG_JNI(register_android_util_jar_StrictJarFile),
1381    REG_JNI(register_android_view_InputChannel),
1382    REG_JNI(register_android_view_InputEventReceiver),
1383    REG_JNI(register_android_view_InputEventSender),
1384    REG_JNI(register_android_view_InputQueue),
1385    REG_JNI(register_android_view_KeyEvent),
1386    REG_JNI(register_android_view_MotionEvent),
1387    REG_JNI(register_android_view_PointerIcon),
1388    REG_JNI(register_android_view_VelocityTracker),
1389
1390    REG_JNI(register_android_content_res_ObbScanner),
1391    REG_JNI(register_android_content_res_Configuration),
1392
1393    REG_JNI(register_android_animation_PropertyValuesHolder),
1394    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1395    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1396
1397};
1398
1399/*
1400 * Register android native functions with the VM.
1401 */
1402/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1403{
1404    ATRACE_NAME("RegisterAndroidNatives");
1405    /*
1406     * This hook causes all future threads created in this process to be
1407     * attached to the JavaVM.  (This needs to go away in favor of JNI
1408     * Attach calls.)
1409     */
1410    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1411
1412    ALOGV("--- registering native functions ---\n");
1413
1414    /*
1415     * Every "register" function calls one or more things that return
1416     * a local reference (e.g. FindClass).  Because we haven't really
1417     * started the VM yet, they're all getting stored in the base frame
1418     * and never released.  Use Push/Pop to manage the storage.
1419     */
1420    env->PushLocalFrame(200);
1421
1422    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1423        env->PopLocalFrame(NULL);
1424        return -1;
1425    }
1426    env->PopLocalFrame(NULL);
1427
1428    //createJavaThread("fubar", quickTest, (void*) "hello");
1429
1430    return 0;
1431}
1432
1433AndroidRuntime* AndroidRuntime::getRuntime()
1434{
1435    return gCurRuntime;
1436}
1437
1438/**
1439 * Used by surface flinger's DdmConnection to register native methods from
1440 * the framework.
1441 */
1442extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1443    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1444}
1445}   // namespace android
1446