AndroidRuntime.cpp revision 70dd7db6a1afdb8a3a9902d818d679d83099463e 
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 1
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_GraphicBuffer(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_HardwareBuffer(JNIEnv *env);
91extern int register_android_hardware_Radio(JNIEnv *env);
92extern int register_android_hardware_SensorManager(JNIEnv *env);
93extern int register_android_hardware_SerialPort(JNIEnv *env);
94extern int register_android_hardware_SoundTrigger(JNIEnv *env);
95extern int register_android_hardware_UsbDevice(JNIEnv *env);
96extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
97extern int register_android_hardware_UsbRequest(JNIEnv *env);
98extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
99
100extern int register_android_media_AudioRecord(JNIEnv *env);
101extern int register_android_media_AudioSystem(JNIEnv *env);
102extern int register_android_media_AudioTrack(JNIEnv *env);
103extern int register_android_media_JetPlayer(JNIEnv *env);
104extern int register_android_media_ToneGenerator(JNIEnv *env);
105
106namespace android {
107
108/*
109 * JNI-based registration functions.  Note these are properly contained in
110 * namespace android.
111 */
112extern int register_android_app_admin_SecurityLog(JNIEnv* env);
113extern int register_android_content_AssetManager(JNIEnv* env);
114extern int register_android_util_EventLog(JNIEnv* env);
115extern int register_android_util_Log(JNIEnv* env);
116extern int register_android_util_MemoryIntArray(JNIEnv* env);
117extern int register_android_util_PathParser(JNIEnv* env);
118extern int register_android_content_StringBlock(JNIEnv* env);
119extern int register_android_content_XmlBlock(JNIEnv* env);
120extern int register_android_graphics_Canvas(JNIEnv* env);
121extern int register_android_graphics_CanvasProperty(JNIEnv* env);
122extern int register_android_graphics_ColorFilter(JNIEnv* env);
123extern int register_android_graphics_DrawFilter(JNIEnv* env);
124extern int register_android_graphics_FontFamily(JNIEnv* env);
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_Region(JNIEnv* env);
131extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
132extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env);
133extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
134extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
135extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
136extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
137extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
138extern int register_android_view_DisplayListCanvas(JNIEnv* env);
139extern int register_android_view_HardwareLayer(JNIEnv* env);
140extern int register_android_view_RenderNode(JNIEnv* env);
141extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
142extern int register_android_view_Surface(JNIEnv* env);
143extern int register_android_view_SurfaceControl(JNIEnv* env);
144extern int register_android_view_SurfaceSession(JNIEnv* env);
145extern int register_android_view_TextureView(JNIEnv* env);
146extern int register_android_view_ThreadedRenderer(JNIEnv* env);
147extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
148extern int register_android_database_CursorWindow(JNIEnv* env);
149extern int register_android_database_SQLiteConnection(JNIEnv* env);
150extern int register_android_database_SQLiteGlobal(JNIEnv* env);
151extern int register_android_database_SQLiteDebug(JNIEnv* env);
152extern int register_android_nio_utils(JNIEnv* env);
153extern int register_android_os_Debug(JNIEnv* env);
154extern int register_android_os_GraphicsEnvironment(JNIEnv* env);
155extern int register_android_os_HwBinder(JNIEnv *env);
156extern int register_android_os_HwBlob(JNIEnv *env);
157extern int register_android_os_HwParcel(JNIEnv *env);
158extern int register_android_os_HwRemoteBinder(JNIEnv *env);
159extern int register_android_os_MessageQueue(JNIEnv* env);
160extern int register_android_os_Parcel(JNIEnv* env);
161extern int register_android_os_SELinux(JNIEnv* env);
162extern int register_android_os_VintfObject(JNIEnv *env);
163extern int register_android_os_VintfRuntimeInfo(JNIEnv *env);
164extern int register_android_os_seccomp(JNIEnv* env);
165extern int register_android_os_SystemProperties(JNIEnv *env);
166extern int register_android_os_SystemClock(JNIEnv* env);
167extern int register_android_os_Trace(JNIEnv* env);
168extern int register_android_os_FileObserver(JNIEnv *env);
169extern int register_android_os_UEventObserver(JNIEnv* env);
170extern int register_android_os_MemoryFile(JNIEnv* env);
171extern int register_android_net_LocalSocketImpl(JNIEnv* env);
172extern int register_android_net_NetworkUtils(JNIEnv* env);
173extern int register_android_net_TrafficStats(JNIEnv* env);
174extern int register_android_text_AndroidCharacter(JNIEnv *env);
175extern int register_android_text_StaticLayout(JNIEnv *env);
176extern int register_android_text_AndroidBidi(JNIEnv *env);
177extern int register_android_opengl_classes(JNIEnv *env);
178extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
179extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
180extern int register_android_backup_BackupDataInput(JNIEnv *env);
181extern int register_android_backup_BackupDataOutput(JNIEnv *env);
182extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
183extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
184extern int register_android_app_backup_FullBackup(JNIEnv *env);
185extern int register_android_app_Activity(JNIEnv *env);
186extern int register_android_app_ActivityThread(JNIEnv *env);
187extern int register_android_app_ApplicationLoaders(JNIEnv *env);
188extern int register_android_app_NativeActivity(JNIEnv *env);
189extern int register_android_media_RemoteDisplay(JNIEnv *env);
190extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
191extern int register_android_view_InputChannel(JNIEnv* env);
192extern int register_android_view_InputDevice(JNIEnv* env);
193extern int register_android_view_InputEventReceiver(JNIEnv* env);
194extern int register_android_view_InputEventSender(JNIEnv* env);
195extern int register_android_view_InputQueue(JNIEnv* env);
196extern int register_android_view_KeyCharacterMap(JNIEnv *env);
197extern int register_android_view_KeyEvent(JNIEnv* env);
198extern int register_android_view_MotionEvent(JNIEnv* env);
199extern int register_android_view_PointerIcon(JNIEnv* env);
200extern int register_android_view_VelocityTracker(JNIEnv* env);
201extern int register_android_content_res_ObbScanner(JNIEnv* env);
202extern int register_android_content_res_Configuration(JNIEnv* env);
203extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
204extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
205extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
206extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env);
207extern int register_com_android_internal_os_PathClassLoaderFactory(JNIEnv* env);
208extern int register_com_android_internal_os_Zygote(JNIEnv *env);
209extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
210
211static AndroidRuntime* gCurRuntime = NULL;
212
213/*
214 * Code written in the Java Programming Language calls here from main().
215 */
216static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
217{
218    gCurRuntime->onStarted();
219}
220
221static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
222{
223    gCurRuntime->onZygoteInit();
224}
225
226static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
227        jobject clazz, jboolean exitWithoutCleanup)
228{
229    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
230}
231
232/*
233 * JNI registration.
234 */
235
236int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
237{
238    const JNINativeMethod methods[] = {
239        { "nativeFinishInit", "()V",
240            (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
241        { "nativeSetExitWithoutCleanup", "(Z)V",
242            (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
243    };
244    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
245        methods, NELEM(methods));
246}
247
248int register_com_android_internal_os_ZygoteInit(JNIEnv* env)
249{
250    const JNINativeMethod methods[] = {
251        { "nativeZygoteInit", "()V",
252            (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit },
253    };
254    return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit",
255        methods, NELEM(methods));
256}
257
258// ----------------------------------------------------------------------
259
260/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
261
262AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
263        mExitWithoutCleanup(false),
264        mArgBlockStart(argBlockStart),
265        mArgBlockLength(argBlockLength)
266{
267    SkGraphics::Init();
268    // There is also a global font cache, but its budget is specified by
269    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
270
271    // Pre-allocate enough space to hold a fair number of options.
272    mOptions.setCapacity(20);
273
274    assert(gCurRuntime == NULL);        // one per process
275    gCurRuntime = this;
276}
277
278AndroidRuntime::~AndroidRuntime()
279{
280    SkGraphics::Term();
281}
282
283/*
284 * Register native methods using JNI.
285 */
286/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
287    const char* className, const JNINativeMethod* gMethods, int numMethods)
288{
289    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
290}
291
292void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
293    if (setProcName) {
294        int len = strlen(argv0);
295        if (len < 15) {
296            pthread_setname_np(pthread_self(), argv0);
297        } else {
298            pthread_setname_np(pthread_self(), argv0 + len - 15);
299        }
300    }
301    memset(mArgBlockStart, 0, mArgBlockLength);
302    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
303}
304
305status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
306    const Vector<String8>& args)
307{
308    JNIEnv* env;
309    jmethodID methodId;
310
311    ALOGD("Calling main entry %s", className.string());
312
313    env = getJNIEnv();
314    if (clazz == NULL || env == NULL) {
315        return UNKNOWN_ERROR;
316    }
317
318    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
319    if (methodId == NULL) {
320        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
321        return UNKNOWN_ERROR;
322    }
323
324    /*
325     * We want to call main() with a String array with our arguments in it.
326     * Create an array and populate it.
327     */
328    jclass stringClass;
329    jobjectArray strArray;
330
331    const size_t numArgs = args.size();
332    stringClass = env->FindClass("java/lang/String");
333    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
334
335    for (size_t i = 0; i < numArgs; i++) {
336        jstring argStr = env->NewStringUTF(args[i].string());
337        env->SetObjectArrayElement(strArray, i, argStr);
338    }
339
340    env->CallStaticVoidMethod(clazz, methodId, strArray);
341    return NO_ERROR;
342}
343
344/*
345 * The VM calls this through the "exit" hook.
346 */
347static void runtime_exit(int code)
348{
349    gCurRuntime->exit(code);
350}
351
352/*
353 * The VM calls this through the "vfprintf" hook.
354 *
355 * We ignore "fp" and just write the results to the log file.
356 */
357static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
358{
359    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
360}
361
362/**
363 * The VM calls this when mutex contention debugging is enabled to
364 * determine whether or not the blocked thread was a "sensitive thread"
365 * for user responsiveness/smoothess.
366 *
367 * Our policy for this is whether or not we're tracing any StrictMode
368 * events on this thread (which we might've inherited via Binder calls
369 * into us)
370 */
371static bool runtime_isSensitiveThread() {
372    IPCThreadState* state = IPCThreadState::selfOrNull();
373    return state && state->getStrictModePolicy() != 0;
374}
375
376static int hasDir(const char* dir)
377{
378    struct stat s;
379    int res = stat(dir, &s);
380    if (res == 0) {
381        return S_ISDIR(s.st_mode);
382    }
383    return 0;
384}
385
386static bool hasFile(const char* file) {
387    struct stat s;
388    int res = stat(file, &s);
389    if (res == 0) {
390        return S_ISREG(s.st_mode);
391    }
392    return false;
393}
394
395// Convenience wrapper over the property API that returns an
396// std::string.
397std::string getProperty(const char* key, const char* defaultValue) {
398    std::vector<char> temp(PROPERTY_VALUE_MAX);
399    const int len = property_get(key, &temp[0], defaultValue);
400    if (len < 0) {
401        return "";
402    }
403    return std::string(&temp[0], len);
404}
405
406/*
407 * Read the persistent locale. Inspects the following system properties
408 * (in order) and returns the first non-empty property in the list :
409 *
410 * (1) persist.sys.locale
411 * (2) persist.sys.language/country/localevar (country and localevar are
412 * inspected iff. language is non-empty.
413 * (3) ro.product.locale
414 * (4) ro.product.locale.language/region
415 *
416 * Note that we need to inspect persist.sys.language/country/localevar to
417 * preserve language settings for devices that are upgrading from Lollipop
418 * to M. The same goes for ro.product.locale.language/region as well.
419 */
420const std::string readLocale()
421{
422    const std::string locale = getProperty("persist.sys.locale", "");
423    if (!locale.empty()) {
424        return locale;
425    }
426
427    const std::string language = getProperty("persist.sys.language", "");
428    if (!language.empty()) {
429        const std::string country = getProperty("persist.sys.country", "");
430        const std::string variant = getProperty("persist.sys.localevar", "");
431
432        std::string out = language;
433        if (!country.empty()) {
434            out = out + "-" + country;
435        }
436
437        if (!variant.empty()) {
438            out = out + "-" + variant;
439        }
440
441        return out;
442    }
443
444    const std::string productLocale = getProperty("ro.product.locale", "");
445    if (!productLocale.empty()) {
446        return productLocale;
447    }
448
449    // If persist.sys.locale and ro.product.locale are missing,
450    // construct a locale value from the individual locale components.
451    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
452    const std::string productRegion = getProperty("ro.product.locale.region", "US");
453
454    return productLanguage + "-" + productRegion;
455}
456
457void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
458{
459    JavaVMOption opt;
460    opt.optionString = optionString;
461    opt.extraInfo = extraInfo;
462    mOptions.add(opt);
463}
464
465/*
466 * Parse a property containing space-separated options that should be
467 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
468 *
469 * This will cut up "extraOptsBuf" as we chop it into individual options.
470 *
471 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
472 *
473 * Adds the strings, if any, to mOptions.
474 */
475void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
476{
477    char* start = extraOptsBuf;
478    char* end = NULL;
479    while (*start != '\0') {
480        while (*start == ' ')                   /* skip leading whitespace */
481            start++;
482        if (*start == '\0')                     /* was trailing ws, bail */
483            break;
484
485        end = start+1;
486        while (*end != ' ' && *end != '\0')     /* find end of token */
487            end++;
488        if (*end == ' ')
489            *end++ = '\0';          /* mark end, advance to indicate more */
490
491        if (quotingArg != NULL) {
492            addOption(quotingArg);
493        }
494        addOption(start);
495        start = end;
496    }
497}
498
499/*
500 * Reads a "property" into "buffer" with a default of "defaultArg". If
501 * the property is non-empty, it is treated as a runtime option such
502 * as "-Xmx32m".
503 *
504 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
505 *
506 * If an argument is found, it is added to mOptions.
507 *
508 * If an option is found, it is added to mOptions and true is
509 * returned. Otherwise false is returned.
510 */
511bool AndroidRuntime::parseRuntimeOption(const char* property,
512                                        char* buffer,
513                                        const char* runtimeArg,
514                                        const char* defaultArg)
515{
516    strcpy(buffer, runtimeArg);
517    size_t runtimeArgLen = strlen(runtimeArg);
518    property_get(property, buffer+runtimeArgLen, defaultArg);
519    if (buffer[runtimeArgLen] == '\0') {
520        return false;
521    }
522    addOption(buffer);
523    return true;
524}
525
526/*
527 * Reads a "property" into "buffer". If the property is non-empty, it
528 * is treated as a dex2oat compiler option that should be
529 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified".
530 *
531 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
532 *
533 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
534 *
535 * If an option is found, it is added to mOptions and true is
536 * returned. Otherwise false is returned.
537 */
538bool AndroidRuntime::parseCompilerOption(const char* property,
539                                         char* buffer,
540                                         const char* compilerArg,
541                                         const char* quotingArg)
542{
543    strcpy(buffer, compilerArg);
544    size_t compilerArgLen = strlen(compilerArg);
545    property_get(property, buffer+compilerArgLen, "");
546    if (buffer[compilerArgLen] == '\0') {
547        return false;
548    }
549    addOption(quotingArg);
550    addOption(buffer);
551    return true;
552}
553
554/*
555 * Reads a "property" into "buffer". If the property is non-empty, it
556 * is treated as a dex2oat compiler runtime option that should be
557 * passed as a quoted option, e.g. "-Ximage-compiler-option
558 * --runtime-arg -Ximage-compiler-option -Xmx32m".
559 *
560 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
561 *
562 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
563 *
564 * If an option is found, it is added to mOptions and true is
565 * returned. Otherwise false is returned.
566 */
567bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
568                                                char* buffer,
569                                                const char* runtimeArg,
570                                                const char* quotingArg)
571{
572    strcpy(buffer, runtimeArg);
573    size_t runtimeArgLen = strlen(runtimeArg);
574    property_get(property, buffer+runtimeArgLen, "");
575    if (buffer[runtimeArgLen] == '\0') {
576        return false;
577    }
578    addOption(quotingArg);
579    addOption("--runtime-arg");
580    addOption(quotingArg);
581    addOption(buffer);
582    return true;
583}
584
585/*
586 * Start the Dalvik Virtual Machine.
587 *
588 * Various arguments, most determined by system properties, are passed in.
589 * The "mOptions" vector is updated.
590 *
591 * CAUTION: when adding options in here, be careful not to put the
592 * char buffer inside a nested scope.  Adding the buffer to the
593 * options using mOptions.add() does not copy the buffer, so if the
594 * buffer goes out of scope the option may be overwritten.  It's best
595 * to put the buffer at the top of the function so that it is more
596 * unlikely that someone will surround it in a scope at a later time
597 * and thus introduce a bug.
598 *
599 * Returns 0 on success.
600 */
601int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
602{
603    JavaVMInitArgs initArgs;
604    char propBuf[PROPERTY_VALUE_MAX];
605    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
606    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
607    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
608    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
609    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
610    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
611    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
612    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
613    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
614    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
615    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
616    char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
617    char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
618    char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
619    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
620    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
621    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
622    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
623    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
624    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
625    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
626    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
627    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
628    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
629    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
630    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
631    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
632    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
633    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
634    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
635    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
636    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
637    char extraOptsBuf[PROPERTY_VALUE_MAX];
638    char voldDecryptBuf[PROPERTY_VALUE_MAX];
639    enum {
640      kEMDefault,
641      kEMIntPortable,
642      kEMIntFast,
643      kEMJitCompiler,
644    } executionMode = kEMDefault;
645    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
646    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
647    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
648    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
649    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
650    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
651    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
652
653    bool checkJni = false;
654    property_get("dalvik.vm.checkjni", propBuf, "");
655    if (strcmp(propBuf, "true") == 0) {
656        checkJni = true;
657    } else if (strcmp(propBuf, "false") != 0) {
658        /* property is neither true nor false; fall back on kernel parameter */
659        property_get("ro.kernel.android.checkjni", propBuf, "");
660        if (propBuf[0] == '1') {
661            checkJni = true;
662        }
663    }
664    ALOGV("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
665    if (checkJni) {
666        /* extended JNI checking */
667        addOption("-Xcheck:jni");
668
669        /* with -Xcheck:jni, this provides a JNI function call trace */
670        //addOption("-verbose:jni");
671    }
672
673    property_get("dalvik.vm.execution-mode", propBuf, "");
674    if (strcmp(propBuf, "int:portable") == 0) {
675        executionMode = kEMIntPortable;
676    } else if (strcmp(propBuf, "int:fast") == 0) {
677        executionMode = kEMIntFast;
678    } else if (strcmp(propBuf, "int:jit") == 0) {
679        executionMode = kEMJitCompiler;
680    }
681
682    // If dalvik.vm.stack-trace-dir is set, it enables the "new" stack trace
683    // dump scheme and a new file is created for each stack dump. If it isn't set,
684    // the old scheme is enabled.
685    property_get("dalvik.vm.stack-trace-dir", propBuf, "");
686    if (strlen(propBuf) > 0) {
687        addOption("-Xusetombstonedtraces");
688    } else {
689        parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
690    }
691
692    strcpy(jniOptsBuf, "-Xjniopts:");
693    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
694        ALOGI("JNI options: '%s'\n", jniOptsBuf);
695    }
696
697    /* route exit() to our handler */
698    addOption("exit", (void*) runtime_exit);
699
700    /* route fprintf() to our handler */
701    addOption("vfprintf", (void*) runtime_vfprintf);
702
703    /* register the framework-specific "is sensitive thread" hook */
704    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
705
706    /* enable verbose; standard options are { jni, gc, class } */
707    //addOption("-verbose:jni");
708    addOption("-verbose:gc");
709    //addOption("-verbose:class");
710
711    /*
712     * The default starting and maximum size of the heap.  Larger
713     * values should be specified in a product property override.
714     */
715    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
716    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
717
718    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
719    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
720    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
721    parseRuntimeOption("dalvik.vm.heaptargetutilization",
722                       heaptargetutilizationOptsBuf,
723                       "-XX:HeapTargetUtilization=");
724
725    /*
726     * JIT related options.
727     */
728    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
729    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
730    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
731    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
732    property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
733    if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
734        addOption("-Xjitsaveprofilinginfo");
735    }
736
737    parseRuntimeOption("dalvik.vm.jitprithreadweight",
738                       jitprithreadweightOptBuf,
739                       "-Xjitprithreadweight:");
740
741    parseRuntimeOption("dalvik.vm.jittransitionweight",
742                       jittransitionweightOptBuf,
743                       "-Xjittransitionweight:");
744
745    property_get("ro.config.low_ram", propBuf, "");
746    if (strcmp(propBuf, "true") == 0) {
747      addOption("-XX:LowMemoryMode");
748    }
749
750    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
751    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
752
753    /*
754     * Enable debugging only for apps forked from zygote.
755     * Set suspend=y to pause during VM init and use android ADB transport.
756     */
757    if (zygote) {
758      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
759    }
760
761    parseRuntimeOption("dalvik.vm.lockprof.threshold",
762                       lockProfThresholdBuf,
763                       "-Xlockprofthreshold:");
764
765    if (executionMode == kEMIntPortable) {
766        addOption("-Xint:portable");
767    } else if (executionMode == kEMIntFast) {
768        addOption("-Xint:fast");
769    } else if (executionMode == kEMJitCompiler) {
770        addOption("-Xint:jit");
771    }
772
773    // If we are booting without the real /data, don't spend time compiling.
774    property_get("vold.decrypt", voldDecryptBuf, "");
775    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
776                             (strcmp(voldDecryptBuf, "1") == 0));
777
778    // Extra options for boot.art/boot.oat image generation.
779    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
780                               "-Xms", "-Ximage-compiler-option");
781    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
782                               "-Xmx", "-Ximage-compiler-option");
783    if (skip_compilation) {
784        addOption("-Ximage-compiler-option");
785        addOption("--compiler-filter=assume-verified");
786    } else {
787        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
788                            "--compiler-filter=", "-Ximage-compiler-option");
789    }
790
791    // Make sure there is a preloaded-classes file.
792    if (!hasFile("/system/etc/preloaded-classes")) {
793        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
794              strerror(errno));
795        return -1;
796    }
797    addOption("-Ximage-compiler-option");
798    addOption("--image-classes=/system/etc/preloaded-classes");
799
800    // If there is a compiled-classes file, push it.
801    if (hasFile("/system/etc/compiled-classes")) {
802        addOption("-Ximage-compiler-option");
803        addOption("--compiled-classes=/system/etc/compiled-classes");
804    }
805
806    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
807    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
808
809    // Extra options for DexClassLoader.
810    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
811                               "-Xms", "-Xcompiler-option");
812    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
813                               "-Xmx", "-Xcompiler-option");
814    if (skip_compilation) {
815        addOption("-Xcompiler-option");
816        addOption("--compiler-filter=assume-verified");
817
818        // We skip compilation when a minimal runtime is brought up for decryption. In that case
819        // /data is temporarily backed by a tmpfs, which is usually small.
820        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
821        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
822        // directly instead.
823        addOption("--runtime-arg");
824        addOption("-Xnorelocate");
825    } else {
826        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
827                            "--compiler-filter=", "-Xcompiler-option");
828    }
829    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
830    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
831                        "-Ximage-compiler-option");
832
833    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
834    // pass the instruction-set-features/variant as an image-compiler-option.
835    // TODO: Find a better way for the instruction-set.
836#if defined(__arm__)
837    constexpr const char* instruction_set = "arm";
838#elif defined(__aarch64__)
839    constexpr const char* instruction_set = "arm64";
840#elif defined(__mips__) && !defined(__LP64__)
841    constexpr const char* instruction_set = "mips";
842#elif defined(__mips__) && defined(__LP64__)
843    constexpr const char* instruction_set = "mips64";
844#elif defined(__i386__)
845    constexpr const char* instruction_set = "x86";
846#elif defined(__x86_64__)
847    constexpr const char* instruction_set = "x86_64";
848#else
849    constexpr const char* instruction_set = "unknown";
850#endif
851    // Note: it is OK to reuse the buffer, as the values are exactly the same between
852    //       * compiler-option, used for runtime compilation (DexClassLoader)
853    //       * image-compiler-option, used for boot-image compilation on device
854
855    // Copy the variant.
856    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
857    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
858                        "--instruction-set-variant=", "-Ximage-compiler-option");
859    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
860                        "--instruction-set-variant=", "-Xcompiler-option");
861    // Copy the features.
862    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
863    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
864                        "--instruction-set-features=", "-Ximage-compiler-option");
865    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
866                        "--instruction-set-features=", "-Xcompiler-option");
867
868
869    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
870    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
871
872    /* extra options; parse this late so it overrides others */
873    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
874    parseExtraOpts(extraOptsBuf, NULL);
875
876    /* Set the properties for locale */
877    {
878        strcpy(localeOption, "-Duser.locale=");
879        const std::string locale = readLocale();
880        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
881        addOption(localeOption);
882    }
883
884    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
885    property_get("ro.debuggable", propBuf, "0");
886    if (strcmp(propBuf, "1") == 0) {
887        property_get("dalvik.vm.method-trace", propBuf, "false");
888        if (strcmp(propBuf, "true") == 0) {
889            addOption("-Xmethod-trace");
890            parseRuntimeOption("dalvik.vm.method-trace-file",
891                               methodTraceFileBuf,
892                               "-Xmethod-trace-file:");
893            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
894                               methodTraceFileSizeBuf,
895                               "-Xmethod-trace-file-size:");
896            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
897            if (strcmp(propBuf, "true") == 0) {
898                addOption("-Xmethod-trace-stream");
899            }
900        }
901    }
902
903    // Native bridge library. "0" means that native bridge is disabled.
904    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
905    if (propBuf[0] == '\0') {
906        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
907    } else if (strcmp(propBuf, "0") != 0) {
908        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
909                 "-XX:NativeBridge=%s", propBuf);
910        addOption(nativeBridgeLibrary);
911    }
912
913#if defined(__LP64__)
914    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
915#else
916    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
917#endif  // defined(__LP64__)
918    property_get(cpu_abilist_property_name, propBuf, "");
919    if (propBuf[0] == '\0') {
920        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
921        return -1;
922    }
923    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
924    addOption(cpuAbiListBuf);
925
926    // Dalvik-cache pruning counter.
927    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
928                       "-Xzygote-max-boot-retry=");
929
930    /*
931     * When running with debug.generate-debug-info, add --generate-debug-info to
932     * the compiler options so that the boot image, if it is compiled on device,
933     * will include native debugging information.
934     */
935    property_get("debug.generate-debug-info", propBuf, "");
936    if (strcmp(propBuf, "true") == 0) {
937        addOption("-Xcompiler-option");
938        addOption("--generate-debug-info");
939        addOption("-Ximage-compiler-option");
940        addOption("--generate-debug-info");
941    }
942
943    /*
944     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
945     * contain the fingerprint and can be parsed.
946     */
947    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
948
949    initArgs.version = JNI_VERSION_1_4;
950    initArgs.options = mOptions.editArray();
951    initArgs.nOptions = mOptions.size();
952    initArgs.ignoreUnrecognized = JNI_FALSE;
953
954    /*
955     * Initialize the VM.
956     *
957     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
958     * If this call succeeds, the VM is ready, and we can start issuing
959     * JNI calls.
960     */
961    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
962        ALOGE("JNI_CreateJavaVM failed\n");
963        return -1;
964    }
965
966    return 0;
967}
968
969char* AndroidRuntime::toSlashClassName(const char* className)
970{
971    char* result = strdup(className);
972    for (char* cp = result; *cp != '\0'; cp++) {
973        if (*cp == '.') {
974            *cp = '/';
975        }
976    }
977    return result;
978}
979
980/** Create a Java string from an ASCII or Latin-1 string */
981jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
982    if (!bytes) return NULL;
983    int length = strlen(bytes);
984    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
985    if (!buffer) return NULL;
986    jchar* chp = buffer;
987    for (int i = 0; i < length; i++) {
988        *chp++ = *bytes++;
989    }
990    return env->NewString(buffer, length);
991}
992
993
994/*
995 * Start the Android runtime.  This involves starting the virtual machine
996 * and calling the "static void main(String[] args)" method in the class
997 * named by "className".
998 *
999 * Passes the main function two arguments, the class name and the specified
1000 * options string.
1001 */
1002void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
1003{
1004    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
1005            className != NULL ? className : "(unknown)", getuid());
1006
1007    static const String8 startSystemServer("start-system-server");
1008
1009    /*
1010     * 'startSystemServer == true' means runtime is obsolete and not run from
1011     * init.rc anymore, so we print out the boot start event here.
1012     */
1013    for (size_t i = 0; i < options.size(); ++i) {
1014        if (options[i] == startSystemServer) {
1015           /* track our progress through the boot sequence */
1016           const int LOG_BOOT_PROGRESS_START = 3000;
1017           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
1018        }
1019    }
1020
1021    const char* rootDir = getenv("ANDROID_ROOT");
1022    if (rootDir == NULL) {
1023        rootDir = "/system";
1024        if (!hasDir("/system")) {
1025            LOG_FATAL("No root directory specified, and /android does not exist.");
1026            return;
1027        }
1028        setenv("ANDROID_ROOT", rootDir, 1);
1029    }
1030
1031    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1032    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1033
1034    /* start the virtual machine */
1035    JniInvocation jni_invocation;
1036    jni_invocation.Init(NULL);
1037    JNIEnv* env;
1038    if (startVm(&mJavaVM, &env, zygote) != 0) {
1039        return;
1040    }
1041    onVmCreated(env);
1042
1043    /*
1044     * Register android functions.
1045     */
1046    if (startReg(env) < 0) {
1047        ALOGE("Unable to register all android natives\n");
1048        return;
1049    }
1050
1051    /*
1052     * We want to call main() with a String array with arguments in it.
1053     * At present we have two arguments, the class name and an option string.
1054     * Create an array to hold them.
1055     */
1056    jclass stringClass;
1057    jobjectArray strArray;
1058    jstring classNameStr;
1059
1060    stringClass = env->FindClass("java/lang/String");
1061    assert(stringClass != NULL);
1062    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1063    assert(strArray != NULL);
1064    classNameStr = env->NewStringUTF(className);
1065    assert(classNameStr != NULL);
1066    env->SetObjectArrayElement(strArray, 0, classNameStr);
1067
1068    for (size_t i = 0; i < options.size(); ++i) {
1069        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1070        assert(optionsStr != NULL);
1071        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1072    }
1073
1074    /*
1075     * Start VM.  This thread becomes the main thread of the VM, and will
1076     * not return until the VM exits.
1077     */
1078    char* slashClassName = toSlashClassName(className);
1079    jclass startClass = env->FindClass(slashClassName);
1080    if (startClass == NULL) {
1081        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1082        /* keep going */
1083    } else {
1084        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1085            "([Ljava/lang/String;)V");
1086        if (startMeth == NULL) {
1087            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1088            /* keep going */
1089        } else {
1090            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1091
1092#if 0
1093            if (env->ExceptionCheck())
1094                threadExitUncaughtException(env);
1095#endif
1096        }
1097    }
1098    free(slashClassName);
1099
1100    ALOGD("Shutting down VM\n");
1101    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1102        ALOGW("Warning: unable to detach main thread\n");
1103    if (mJavaVM->DestroyJavaVM() != 0)
1104        ALOGW("Warning: VM did not shut down cleanly\n");
1105}
1106
1107void AndroidRuntime::exit(int code)
1108{
1109    if (mExitWithoutCleanup) {
1110        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1111        ::_exit(code);
1112    } else {
1113        ALOGI("VM exiting with result code %d.", code);
1114        onExit(code);
1115        ::exit(code);
1116    }
1117}
1118
1119void AndroidRuntime::onVmCreated(JNIEnv* env)
1120{
1121    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1122}
1123
1124/*
1125 * Get the JNIEnv pointer for this thread.
1126 *
1127 * Returns NULL if the slot wasn't allocated or populated.
1128 */
1129/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1130{
1131    JNIEnv* env;
1132    JavaVM* vm = AndroidRuntime::getJavaVM();
1133    assert(vm != NULL);
1134
1135    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1136        return NULL;
1137    return env;
1138}
1139
1140/*
1141 * Makes the current thread visible to the VM.
1142 *
1143 * The JNIEnv pointer returned is only valid for the current thread, and
1144 * thus must be tucked into thread-local storage.
1145 */
1146static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1147{
1148    JavaVMAttachArgs args;
1149    JavaVM* vm;
1150    jint result;
1151
1152    vm = AndroidRuntime::getJavaVM();
1153    assert(vm != NULL);
1154
1155    args.version = JNI_VERSION_1_4;
1156    args.name = (char*) threadName;
1157    args.group = NULL;
1158
1159    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1160    if (result != JNI_OK)
1161        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1162
1163    return result;
1164}
1165
1166/*
1167 * Detach the current thread from the set visible to the VM.
1168 */
1169static int javaDetachThread(void)
1170{
1171    JavaVM* vm;
1172    jint result;
1173
1174    vm = AndroidRuntime::getJavaVM();
1175    assert(vm != NULL);
1176
1177    result = vm->DetachCurrentThread();
1178    if (result != JNI_OK)
1179        ALOGE("ERROR: thread detach failed\n");
1180    return result;
1181}
1182
1183/*
1184 * When starting a native thread that will be visible from the VM, we
1185 * bounce through this to get the right attach/detach action.
1186 * Note that this function calls free(args)
1187 */
1188/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1189    void* start = ((void**)args)[0];
1190    void* userData = ((void **)args)[1];
1191    char* name = (char*) ((void **)args)[2];        // we own this storage
1192    free(args);
1193    JNIEnv* env;
1194    int result;
1195
1196    /* hook us into the VM */
1197    if (javaAttachThread(name, &env) != JNI_OK)
1198        return -1;
1199
1200    /* start the thread running */
1201    result = (*(android_thread_func_t)start)(userData);
1202
1203    /* unhook us */
1204    javaDetachThread();
1205    free(name);
1206
1207    return result;
1208}
1209
1210/*
1211 * This is invoked from androidCreateThreadEtc() via the callback
1212 * set with androidSetCreateThreadFunc().
1213 *
1214 * We need to create the new thread in such a way that it gets hooked
1215 * into the VM before it really starts executing.
1216 */
1217/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1218                                android_thread_func_t entryFunction,
1219                                void* userData,
1220                                const char* threadName,
1221                                int32_t threadPriority,
1222                                size_t threadStackSize,
1223                                android_thread_id_t* threadId)
1224{
1225    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1226    int result;
1227
1228    LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1229
1230    args[0] = (void*) entryFunction;
1231    args[1] = userData;
1232    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1233
1234    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1235        threadName, threadPriority, threadStackSize, threadId);
1236    return result;
1237}
1238
1239/*
1240 * Create a thread that is visible from the VM.
1241 *
1242 * This is called from elsewhere in the library.
1243 */
1244/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1245    void (*start)(void *), void* arg)
1246{
1247    android_thread_id_t threadId = 0;
1248    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1249        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1250    return threadId;
1251}
1252
1253#if 0
1254static void quickTest(void* arg)
1255{
1256    const char* str = (const char*) arg;
1257
1258    printf("In quickTest: %s\n", str);
1259}
1260#endif
1261
1262#ifdef NDEBUG
1263    #define REG_JNI(name)      { name }
1264    struct RegJNIRec {
1265        int (*mProc)(JNIEnv*);
1266    };
1267#else
1268    #define REG_JNI(name)      { name, #name }
1269    struct RegJNIRec {
1270        int (*mProc)(JNIEnv*);
1271        const char* mName;
1272    };
1273#endif
1274
1275typedef void (*RegJAMProc)();
1276
1277static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1278{
1279    for (size_t i = 0; i < count; i++) {
1280        if (array[i].mProc(env) < 0) {
1281#ifndef NDEBUG
1282            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1283#endif
1284            return -1;
1285        }
1286    }
1287    return 0;
1288}
1289
1290static const RegJNIRec gRegJNI[] = {
1291    REG_JNI(register_com_android_internal_os_RuntimeInit),
1292    REG_JNI(register_com_android_internal_os_ZygoteInit),
1293    REG_JNI(register_android_os_SystemClock),
1294    REG_JNI(register_android_util_EventLog),
1295    REG_JNI(register_android_util_Log),
1296    REG_JNI(register_android_util_MemoryIntArray),
1297    REG_JNI(register_android_util_PathParser),
1298    REG_JNI(register_android_app_admin_SecurityLog),
1299    REG_JNI(register_android_content_AssetManager),
1300    REG_JNI(register_android_content_StringBlock),
1301    REG_JNI(register_android_content_XmlBlock),
1302    REG_JNI(register_android_text_AndroidCharacter),
1303    REG_JNI(register_android_text_StaticLayout),
1304    REG_JNI(register_android_text_AndroidBidi),
1305    REG_JNI(register_android_view_InputDevice),
1306    REG_JNI(register_android_view_KeyCharacterMap),
1307    REG_JNI(register_android_os_Process),
1308    REG_JNI(register_android_os_SystemProperties),
1309    REG_JNI(register_android_os_Binder),
1310    REG_JNI(register_android_os_Parcel),
1311    REG_JNI(register_android_os_HwBinder),
1312    REG_JNI(register_android_os_HwBlob),
1313    REG_JNI(register_android_os_HwParcel),
1314    REG_JNI(register_android_os_HwRemoteBinder),
1315    REG_JNI(register_android_os_VintfObject),
1316    REG_JNI(register_android_os_VintfRuntimeInfo),
1317    REG_JNI(register_android_nio_utils),
1318    REG_JNI(register_android_graphics_Canvas),
1319    REG_JNI(register_android_graphics_Graphics),
1320    REG_JNI(register_android_view_DisplayEventReceiver),
1321    REG_JNI(register_android_view_RenderNode),
1322    REG_JNI(register_android_view_RenderNodeAnimator),
1323    REG_JNI(register_android_view_DisplayListCanvas),
1324    REG_JNI(register_android_view_HardwareLayer),
1325    REG_JNI(register_android_view_ThreadedRenderer),
1326    REG_JNI(register_android_view_Surface),
1327    REG_JNI(register_android_view_SurfaceControl),
1328    REG_JNI(register_android_view_SurfaceSession),
1329    REG_JNI(register_android_view_TextureView),
1330    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1331    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1332    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1333    REG_JNI(register_android_opengl_jni_EGL14),
1334    REG_JNI(register_android_opengl_jni_EGLExt),
1335    REG_JNI(register_android_opengl_jni_GLES10),
1336    REG_JNI(register_android_opengl_jni_GLES10Ext),
1337    REG_JNI(register_android_opengl_jni_GLES11),
1338    REG_JNI(register_android_opengl_jni_GLES11Ext),
1339    REG_JNI(register_android_opengl_jni_GLES20),
1340    REG_JNI(register_android_opengl_jni_GLES30),
1341    REG_JNI(register_android_opengl_jni_GLES31),
1342    REG_JNI(register_android_opengl_jni_GLES31Ext),
1343    REG_JNI(register_android_opengl_jni_GLES32),
1344
1345    REG_JNI(register_android_graphics_Bitmap),
1346    REG_JNI(register_android_graphics_BitmapFactory),
1347    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1348    REG_JNI(register_android_graphics_Camera),
1349    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1350    REG_JNI(register_android_graphics_CanvasProperty),
1351    REG_JNI(register_android_graphics_ColorFilter),
1352    REG_JNI(register_android_graphics_DrawFilter),
1353    REG_JNI(register_android_graphics_FontFamily),
1354    REG_JNI(register_android_graphics_GraphicBuffer),
1355    REG_JNI(register_android_graphics_Interpolator),
1356    REG_JNI(register_android_graphics_MaskFilter),
1357    REG_JNI(register_android_graphics_Matrix),
1358    REG_JNI(register_android_graphics_Movie),
1359    REG_JNI(register_android_graphics_NinePatch),
1360    REG_JNI(register_android_graphics_Paint),
1361    REG_JNI(register_android_graphics_Path),
1362    REG_JNI(register_android_graphics_PathMeasure),
1363    REG_JNI(register_android_graphics_PathEffect),
1364    REG_JNI(register_android_graphics_Picture),
1365    REG_JNI(register_android_graphics_Region),
1366    REG_JNI(register_android_graphics_Shader),
1367    REG_JNI(register_android_graphics_SurfaceTexture),
1368    REG_JNI(register_android_graphics_Typeface),
1369    REG_JNI(register_android_graphics_YuvImage),
1370    REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
1371    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1372    REG_JNI(register_android_graphics_pdf_PdfDocument),
1373    REG_JNI(register_android_graphics_pdf_PdfEditor),
1374    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1375
1376    REG_JNI(register_android_database_CursorWindow),
1377    REG_JNI(register_android_database_SQLiteConnection),
1378    REG_JNI(register_android_database_SQLiteGlobal),
1379    REG_JNI(register_android_database_SQLiteDebug),
1380    REG_JNI(register_android_os_Debug),
1381    REG_JNI(register_android_os_FileObserver),
1382    REG_JNI(register_android_os_GraphicsEnvironment),
1383    REG_JNI(register_android_os_MessageQueue),
1384    REG_JNI(register_android_os_SELinux),
1385    REG_JNI(register_android_os_seccomp),
1386    REG_JNI(register_android_os_Trace),
1387    REG_JNI(register_android_os_UEventObserver),
1388    REG_JNI(register_android_net_LocalSocketImpl),
1389    REG_JNI(register_android_net_NetworkUtils),
1390    REG_JNI(register_android_net_TrafficStats),
1391    REG_JNI(register_android_os_MemoryFile),
1392    REG_JNI(register_com_android_internal_os_PathClassLoaderFactory),
1393    REG_JNI(register_com_android_internal_os_Zygote),
1394    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1395    REG_JNI(register_android_hardware_Camera),
1396    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1397    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1398    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1399    REG_JNI(register_android_hardware_camera2_DngCreator),
1400    REG_JNI(register_android_hardware_HardwareBuffer),
1401    REG_JNI(register_android_hardware_Radio),
1402    REG_JNI(register_android_hardware_SensorManager),
1403    REG_JNI(register_android_hardware_SerialPort),
1404    REG_JNI(register_android_hardware_SoundTrigger),
1405    REG_JNI(register_android_hardware_UsbDevice),
1406    REG_JNI(register_android_hardware_UsbDeviceConnection),
1407    REG_JNI(register_android_hardware_UsbRequest),
1408    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1409    REG_JNI(register_android_media_AudioRecord),
1410    REG_JNI(register_android_media_AudioSystem),
1411    REG_JNI(register_android_media_AudioTrack),
1412    REG_JNI(register_android_media_JetPlayer),
1413    REG_JNI(register_android_media_RemoteDisplay),
1414    REG_JNI(register_android_media_ToneGenerator),
1415
1416    REG_JNI(register_android_opengl_classes),
1417    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1418    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1419    REG_JNI(register_android_backup_BackupDataInput),
1420    REG_JNI(register_android_backup_BackupDataOutput),
1421    REG_JNI(register_android_backup_FileBackupHelperBase),
1422    REG_JNI(register_android_backup_BackupHelperDispatcher),
1423    REG_JNI(register_android_app_backup_FullBackup),
1424    REG_JNI(register_android_app_Activity),
1425    REG_JNI(register_android_app_ActivityThread),
1426    REG_JNI(register_android_app_ApplicationLoaders),
1427    REG_JNI(register_android_app_NativeActivity),
1428    REG_JNI(register_android_util_jar_StrictJarFile),
1429    REG_JNI(register_android_view_InputChannel),
1430    REG_JNI(register_android_view_InputEventReceiver),
1431    REG_JNI(register_android_view_InputEventSender),
1432    REG_JNI(register_android_view_InputQueue),
1433    REG_JNI(register_android_view_KeyEvent),
1434    REG_JNI(register_android_view_MotionEvent),
1435    REG_JNI(register_android_view_PointerIcon),
1436    REG_JNI(register_android_view_VelocityTracker),
1437
1438    REG_JNI(register_android_content_res_ObbScanner),
1439    REG_JNI(register_android_content_res_Configuration),
1440
1441    REG_JNI(register_android_animation_PropertyValuesHolder),
1442    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1443    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1444    REG_JNI(register_com_android_internal_os_FuseAppLoop),
1445};
1446
1447/*
1448 * Register android native functions with the VM.
1449 */
1450/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1451{
1452    ATRACE_NAME("RegisterAndroidNatives");
1453    /*
1454     * This hook causes all future threads created in this process to be
1455     * attached to the JavaVM.  (This needs to go away in favor of JNI
1456     * Attach calls.)
1457     */
1458    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1459
1460    ALOGV("--- registering native functions ---\n");
1461
1462    /*
1463     * Every "register" function calls one or more things that return
1464     * a local reference (e.g. FindClass).  Because we haven't really
1465     * started the VM yet, they're all getting stored in the base frame
1466     * and never released.  Use Push/Pop to manage the storage.
1467     */
1468    env->PushLocalFrame(200);
1469
1470    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1471        env->PopLocalFrame(NULL);
1472        return -1;
1473    }
1474    env->PopLocalFrame(NULL);
1475
1476    //createJavaThread("fubar", quickTest, (void*) "hello");
1477
1478    return 0;
1479}
1480
1481AndroidRuntime* AndroidRuntime::getRuntime()
1482{
1483    return gCurRuntime;
1484}
1485
1486/**
1487 * Used by surface flinger's DdmConnection to register native methods from
1488 * the framework.
1489 */
1490extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1491    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1492}
1493}   // namespace android
1494