AndroidRuntime.cpp revision becc56d7ea523aa153219446232cbf5e561726f4 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define ATRACE_TAG ATRACE_TAG_DALVIK
18#define LOG_TAG "AndroidRuntime"
19//#define LOG_NDEBUG 0
20
21#include <android_runtime/AndroidRuntime.h>
22#include <binder/IBinder.h>
23#include <binder/IPCThreadState.h>
24#include <binder/IServiceManager.h>
25#include <utils/Log.h>
26#include <utils/misc.h>
27#include <utils/Trace.h>
28#include <binder/Parcel.h>
29#include <utils/threads.h>
30#include <cutils/properties.h>
31
32#include <SkGraphics.h>
33
34#include "jni.h"
35#include "JNIHelp.h"
36#include "JniInvocation.h"
37#include "android_util_Binder.h"
38
39#include <stdio.h>
40#include <signal.h>
41#include <sys/stat.h>
42#include <sys/types.h>
43#include <signal.h>
44#include <dirent.h>
45#include <assert.h>
46
47#include <string>
48#include <vector>
49
50
51using namespace android;
52
53extern int register_android_os_Binder(JNIEnv* env);
54extern int register_android_os_Process(JNIEnv* env);
55extern int register_android_graphics_Bitmap(JNIEnv*);
56extern int register_android_graphics_BitmapFactory(JNIEnv*);
57extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
58extern int register_android_graphics_Camera(JNIEnv* env);
59extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
60extern int register_android_graphics_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_seccomp(JNIEnv* env);
164extern int register_android_os_SystemProperties(JNIEnv *env);
165extern int register_android_os_SystemClock(JNIEnv* env);
166extern int register_android_os_Trace(JNIEnv* env);
167extern int register_android_os_FileObserver(JNIEnv *env);
168extern int register_android_os_UEventObserver(JNIEnv* env);
169extern int register_android_os_MemoryFile(JNIEnv* env);
170extern int register_android_net_LocalSocketImpl(JNIEnv* env);
171extern int register_android_net_NetworkUtils(JNIEnv* env);
172extern int register_android_net_TrafficStats(JNIEnv* env);
173extern int register_android_text_AndroidCharacter(JNIEnv *env);
174extern int register_android_text_StaticLayout(JNIEnv *env);
175extern int register_android_text_AndroidBidi(JNIEnv *env);
176extern int register_android_opengl_classes(JNIEnv *env);
177extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
178extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
179extern int register_android_backup_BackupDataInput(JNIEnv *env);
180extern int register_android_backup_BackupDataOutput(JNIEnv *env);
181extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
182extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
183extern int register_android_app_backup_FullBackup(JNIEnv *env);
184extern int register_android_app_Activity(JNIEnv *env);
185extern int register_android_app_ActivityThread(JNIEnv *env);
186extern int register_android_app_ApplicationLoaders(JNIEnv *env);
187extern int register_android_app_NativeActivity(JNIEnv *env);
188extern int register_android_media_RemoteDisplay(JNIEnv *env);
189extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
190extern int register_android_view_InputChannel(JNIEnv* env);
191extern int register_android_view_InputDevice(JNIEnv* env);
192extern int register_android_view_InputEventReceiver(JNIEnv* env);
193extern int register_android_view_InputEventSender(JNIEnv* env);
194extern int register_android_view_InputQueue(JNIEnv* env);
195extern int register_android_view_KeyCharacterMap(JNIEnv *env);
196extern int register_android_view_KeyEvent(JNIEnv* env);
197extern int register_android_view_MotionEvent(JNIEnv* env);
198extern int register_android_view_PointerIcon(JNIEnv* env);
199extern int register_android_view_VelocityTracker(JNIEnv* env);
200extern int register_android_content_res_ObbScanner(JNIEnv* env);
201extern int register_android_content_res_Configuration(JNIEnv* env);
202extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
203extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
204extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
205extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env);
206extern int register_com_android_internal_os_PathClassLoaderFactory(JNIEnv* env);
207extern int register_com_android_internal_os_Zygote(JNIEnv *env);
208extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
209
210static AndroidRuntime* gCurRuntime = NULL;
211
212/*
213 * Code written in the Java Programming Language calls here from main().
214 */
215static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
216{
217    gCurRuntime->onStarted();
218}
219
220static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
221{
222    gCurRuntime->onZygoteInit();
223}
224
225static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
226        jobject clazz, jboolean exitWithoutCleanup)
227{
228    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
229}
230
231/*
232 * JNI registration.
233 */
234
235int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
236{
237    const JNINativeMethod methods[] = {
238        { "nativeFinishInit", "()V",
239            (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
240        { "nativeSetExitWithoutCleanup", "(Z)V",
241            (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
242    };
243    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
244        methods, NELEM(methods));
245}
246
247int register_com_android_internal_os_ZygoteInit(JNIEnv* env)
248{
249    const JNINativeMethod methods[] = {
250        { "nativeZygoteInit", "()V",
251            (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit },
252    };
253    return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit",
254        methods, NELEM(methods));
255}
256
257// ----------------------------------------------------------------------
258
259/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
260
261AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
262        mExitWithoutCleanup(false),
263        mArgBlockStart(argBlockStart),
264        mArgBlockLength(argBlockLength)
265{
266    SkGraphics::Init();
267    // There is also a global font cache, but its budget is specified by
268    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
269
270    // Pre-allocate enough space to hold a fair number of options.
271    mOptions.setCapacity(20);
272
273    assert(gCurRuntime == NULL);        // one per process
274    gCurRuntime = this;
275}
276
277AndroidRuntime::~AndroidRuntime()
278{
279    SkGraphics::Term();
280}
281
282/*
283 * Register native methods using JNI.
284 */
285/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
286    const char* className, const JNINativeMethod* gMethods, int numMethods)
287{
288    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
289}
290
291void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
292    if (setProcName) {
293        int len = strlen(argv0);
294        if (len < 15) {
295            pthread_setname_np(pthread_self(), argv0);
296        } else {
297            pthread_setname_np(pthread_self(), argv0 + len - 15);
298        }
299    }
300    memset(mArgBlockStart, 0, mArgBlockLength);
301    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
302}
303
304status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
305    const Vector<String8>& args)
306{
307    JNIEnv* env;
308    jmethodID methodId;
309
310    ALOGD("Calling main entry %s", className.string());
311
312    env = getJNIEnv();
313    if (clazz == NULL || env == NULL) {
314        return UNKNOWN_ERROR;
315    }
316
317    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
318    if (methodId == NULL) {
319        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
320        return UNKNOWN_ERROR;
321    }
322
323    /*
324     * We want to call main() with a String array with our arguments in it.
325     * Create an array and populate it.
326     */
327    jclass stringClass;
328    jobjectArray strArray;
329
330    const size_t numArgs = args.size();
331    stringClass = env->FindClass("java/lang/String");
332    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
333
334    for (size_t i = 0; i < numArgs; i++) {
335        jstring argStr = env->NewStringUTF(args[i].string());
336        env->SetObjectArrayElement(strArray, i, argStr);
337    }
338
339    env->CallStaticVoidMethod(clazz, methodId, strArray);
340    return NO_ERROR;
341}
342
343/*
344 * The VM calls this through the "exit" hook.
345 */
346static void runtime_exit(int code)
347{
348    gCurRuntime->exit(code);
349}
350
351/*
352 * The VM calls this through the "vfprintf" hook.
353 *
354 * We ignore "fp" and just write the results to the log file.
355 */
356static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
357{
358    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
359}
360
361/**
362 * The VM calls this when mutex contention debugging is enabled to
363 * determine whether or not the blocked thread was a "sensitive thread"
364 * for user responsiveness/smoothess.
365 *
366 * Our policy for this is whether or not we're tracing any StrictMode
367 * events on this thread (which we might've inherited via Binder calls
368 * into us)
369 */
370static bool runtime_isSensitiveThread() {
371    IPCThreadState* state = IPCThreadState::selfOrNull();
372    return state && state->getStrictModePolicy() != 0;
373}
374
375static int hasDir(const char* dir)
376{
377    struct stat s;
378    int res = stat(dir, &s);
379    if (res == 0) {
380        return S_ISDIR(s.st_mode);
381    }
382    return 0;
383}
384
385static bool hasFile(const char* file) {
386    struct stat s;
387    int res = stat(file, &s);
388    if (res == 0) {
389        return S_ISREG(s.st_mode);
390    }
391    return false;
392}
393
394// Convenience wrapper over the property API that returns an
395// std::string.
396std::string getProperty(const char* key, const char* defaultValue) {
397    std::vector<char> temp(PROPERTY_VALUE_MAX);
398    const int len = property_get(key, &temp[0], defaultValue);
399    if (len < 0) {
400        return "";
401    }
402    return std::string(&temp[0], len);
403}
404
405/*
406 * Read the persistent locale. Inspects the following system properties
407 * (in order) and returns the first non-empty property in the list :
408 *
409 * (1) persist.sys.locale
410 * (2) persist.sys.language/country/localevar (country and localevar are
411 * inspected iff. language is non-empty.
412 * (3) ro.product.locale
413 * (4) ro.product.locale.language/region
414 *
415 * Note that we need to inspect persist.sys.language/country/localevar to
416 * preserve language settings for devices that are upgrading from Lollipop
417 * to M. The same goes for ro.product.locale.language/region as well.
418 */
419const std::string readLocale()
420{
421    const std::string locale = getProperty("persist.sys.locale", "");
422    if (!locale.empty()) {
423        return locale;
424    }
425
426    const std::string language = getProperty("persist.sys.language", "");
427    if (!language.empty()) {
428        const std::string country = getProperty("persist.sys.country", "");
429        const std::string variant = getProperty("persist.sys.localevar", "");
430
431        std::string out = language;
432        if (!country.empty()) {
433            out = out + "-" + country;
434        }
435
436        if (!variant.empty()) {
437            out = out + "-" + variant;
438        }
439
440        return out;
441    }
442
443    const std::string productLocale = getProperty("ro.product.locale", "");
444    if (!productLocale.empty()) {
445        return productLocale;
446    }
447
448    // If persist.sys.locale and ro.product.locale are missing,
449    // construct a locale value from the individual locale components.
450    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
451    const std::string productRegion = getProperty("ro.product.locale.region", "US");
452
453    return productLanguage + "-" + productRegion;
454}
455
456void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
457{
458    JavaVMOption opt;
459    opt.optionString = optionString;
460    opt.extraInfo = extraInfo;
461    mOptions.add(opt);
462}
463
464/*
465 * Parse a property containing space-separated options that should be
466 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
467 *
468 * This will cut up "extraOptsBuf" as we chop it into individual options.
469 *
470 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
471 *
472 * Adds the strings, if any, to mOptions.
473 */
474void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
475{
476    char* start = extraOptsBuf;
477    char* end = NULL;
478    while (*start != '\0') {
479        while (*start == ' ')                   /* skip leading whitespace */
480            start++;
481        if (*start == '\0')                     /* was trailing ws, bail */
482            break;
483
484        end = start+1;
485        while (*end != ' ' && *end != '\0')     /* find end of token */
486            end++;
487        if (*end == ' ')
488            *end++ = '\0';          /* mark end, advance to indicate more */
489
490        if (quotingArg != NULL) {
491            addOption(quotingArg);
492        }
493        addOption(start);
494        start = end;
495    }
496}
497
498/*
499 * Reads a "property" into "buffer" with a default of "defaultArg". If
500 * the property is non-empty, it is treated as a runtime option such
501 * as "-Xmx32m".
502 *
503 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
504 *
505 * If an argument is found, it is added to mOptions.
506 *
507 * If an option is found, it is added to mOptions and true is
508 * returned. Otherwise false is returned.
509 */
510bool AndroidRuntime::parseRuntimeOption(const char* property,
511                                        char* buffer,
512                                        const char* runtimeArg,
513                                        const char* defaultArg)
514{
515    strcpy(buffer, runtimeArg);
516    size_t runtimeArgLen = strlen(runtimeArg);
517    property_get(property, buffer+runtimeArgLen, defaultArg);
518    if (buffer[runtimeArgLen] == '\0') {
519        return false;
520    }
521    addOption(buffer);
522    return true;
523}
524
525/*
526 * Reads a "property" into "buffer". If the property is non-empty, it
527 * is treated as a dex2oat compiler option that should be
528 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
529 *
530 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
531 *
532 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
533 *
534 * If an option is found, it is added to mOptions and true is
535 * returned. Otherwise false is returned.
536 */
537bool AndroidRuntime::parseCompilerOption(const char* property,
538                                         char* buffer,
539                                         const char* compilerArg,
540                                         const char* quotingArg)
541{
542    strcpy(buffer, compilerArg);
543    size_t compilerArgLen = strlen(compilerArg);
544    property_get(property, buffer+compilerArgLen, "");
545    if (buffer[compilerArgLen] == '\0') {
546        return false;
547    }
548    addOption(quotingArg);
549    addOption(buffer);
550    return true;
551}
552
553/*
554 * Reads a "property" into "buffer". If the property is non-empty, it
555 * is treated as a dex2oat compiler runtime option that should be
556 * passed as a quoted option, e.g. "-Ximage-compiler-option
557 * --runtime-arg -Ximage-compiler-option -Xmx32m".
558 *
559 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
560 *
561 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
562 *
563 * If an option is found, it is added to mOptions and true is
564 * returned. Otherwise false is returned.
565 */
566bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
567                                                char* buffer,
568                                                const char* runtimeArg,
569                                                const char* quotingArg)
570{
571    strcpy(buffer, runtimeArg);
572    size_t runtimeArgLen = strlen(runtimeArg);
573    property_get(property, buffer+runtimeArgLen, "");
574    if (buffer[runtimeArgLen] == '\0') {
575        return false;
576    }
577    addOption(quotingArg);
578    addOption("--runtime-arg");
579    addOption(quotingArg);
580    addOption(buffer);
581    return true;
582}
583
584/*
585 * Start the Dalvik Virtual Machine.
586 *
587 * Various arguments, most determined by system properties, are passed in.
588 * The "mOptions" vector is updated.
589 *
590 * CAUTION: when adding options in here, be careful not to put the
591 * char buffer inside a nested scope.  Adding the buffer to the
592 * options using mOptions.add() does not copy the buffer, so if the
593 * buffer goes out of scope the option may be overwritten.  It's best
594 * to put the buffer at the top of the function so that it is more
595 * unlikely that someone will surround it in a scope at a later time
596 * and thus introduce a bug.
597 *
598 * Returns 0 on success.
599 */
600int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
601{
602    JavaVMInitArgs initArgs;
603    char propBuf[PROPERTY_VALUE_MAX];
604    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
605    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
606    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
607    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
608    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
609    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
610    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
611    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
612    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
613    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
614    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
615    char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
616    char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
617    char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
618    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
619    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
620    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
621    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
622    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
623    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
624    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
625    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
626    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
627    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
628    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
629    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
630    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
631    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
632    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
633    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
634    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
635    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
636    char extraOptsBuf[PROPERTY_VALUE_MAX];
637    char voldDecryptBuf[PROPERTY_VALUE_MAX];
638    enum {
639      kEMDefault,
640      kEMIntPortable,
641      kEMIntFast,
642      kEMJitCompiler,
643    } executionMode = kEMDefault;
644    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
645    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
646    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
647    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
648    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
649    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
650    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
651
652    bool checkJni = false;
653    property_get("dalvik.vm.checkjni", propBuf, "");
654    if (strcmp(propBuf, "true") == 0) {
655        checkJni = true;
656    } else if (strcmp(propBuf, "false") != 0) {
657        /* property is neither true nor false; fall back on kernel parameter */
658        property_get("ro.kernel.android.checkjni", propBuf, "");
659        if (propBuf[0] == '1') {
660            checkJni = true;
661        }
662    }
663    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
664    if (checkJni) {
665        /* extended JNI checking */
666        addOption("-Xcheck:jni");
667
668        /* with -Xcheck:jni, this provides a JNI function call trace */
669        //addOption("-verbose:jni");
670    }
671
672    property_get("dalvik.vm.execution-mode", propBuf, "");
673    if (strcmp(propBuf, "int:portable") == 0) {
674        executionMode = kEMIntPortable;
675    } else if (strcmp(propBuf, "int:fast") == 0) {
676        executionMode = kEMIntFast;
677    } else if (strcmp(propBuf, "int:jit") == 0) {
678        executionMode = kEMJitCompiler;
679    }
680
681    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
682
683    strcpy(jniOptsBuf, "-Xjniopts:");
684    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
685        ALOGI("JNI options: '%s'\n", jniOptsBuf);
686    }
687
688    /* route exit() to our handler */
689    addOption("exit", (void*) runtime_exit);
690
691    /* route fprintf() to our handler */
692    addOption("vfprintf", (void*) runtime_vfprintf);
693
694    /* register the framework-specific "is sensitive thread" hook */
695    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
696
697    /* enable verbose; standard options are { jni, gc, class } */
698    //addOption("-verbose:jni");
699    addOption("-verbose:gc");
700    //addOption("-verbose:class");
701
702    /*
703     * The default starting and maximum size of the heap.  Larger
704     * values should be specified in a product property override.
705     */
706    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
707    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
708
709    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
710    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
711    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
712    parseRuntimeOption("dalvik.vm.heaptargetutilization",
713                       heaptargetutilizationOptsBuf,
714                       "-XX:HeapTargetUtilization=");
715
716    /*
717     * JIT related options.
718     */
719    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
720    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
721    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
722    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
723    property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
724    if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
725        addOption("-Xjitsaveprofilinginfo");
726    }
727
728    parseRuntimeOption("dalvik.vm.jitprithreadweight",
729                       jitprithreadweightOptBuf,
730                       "-Xjitprithreadweight:");
731
732    parseRuntimeOption("dalvik.vm.jittransitionweight",
733                       jittransitionweightOptBuf,
734                       "-Xjittransitionweight:");
735
736    property_get("ro.config.low_ram", propBuf, "");
737    if (strcmp(propBuf, "true") == 0) {
738      addOption("-XX:LowMemoryMode");
739    }
740
741    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
742    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
743
744    /*
745     * Enable debugging only for apps forked from zygote.
746     * Set suspend=y to pause during VM init and use android ADB transport.
747     */
748    if (zygote) {
749      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
750    }
751
752    parseRuntimeOption("dalvik.vm.lockprof.threshold",
753                       lockProfThresholdBuf,
754                       "-Xlockprofthreshold:");
755
756    if (executionMode == kEMIntPortable) {
757        addOption("-Xint:portable");
758    } else if (executionMode == kEMIntFast) {
759        addOption("-Xint:fast");
760    } else if (executionMode == kEMJitCompiler) {
761        addOption("-Xint:jit");
762    }
763
764    // If we are booting without the real /data, don't spend time compiling.
765    property_get("vold.decrypt", voldDecryptBuf, "");
766    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
767                             (strcmp(voldDecryptBuf, "1") == 0));
768
769    // Extra options for boot.art/boot.oat image generation.
770    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
771                               "-Xms", "-Ximage-compiler-option");
772    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
773                               "-Xmx", "-Ximage-compiler-option");
774    if (skip_compilation) {
775        addOption("-Ximage-compiler-option");
776        addOption("--compiler-filter=verify-none");
777    } else {
778        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
779                            "--compiler-filter=", "-Ximage-compiler-option");
780    }
781
782    // Make sure there is a preloaded-classes file.
783    if (!hasFile("/system/etc/preloaded-classes")) {
784        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
785              strerror(errno));
786        return -1;
787    }
788    addOption("-Ximage-compiler-option");
789    addOption("--image-classes=/system/etc/preloaded-classes");
790
791    // If there is a compiled-classes file, push it.
792    if (hasFile("/system/etc/compiled-classes")) {
793        addOption("-Ximage-compiler-option");
794        addOption("--compiled-classes=/system/etc/compiled-classes");
795    }
796
797    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
798    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
799
800    // Extra options for DexClassLoader.
801    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
802                               "-Xms", "-Xcompiler-option");
803    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
804                               "-Xmx", "-Xcompiler-option");
805    if (skip_compilation) {
806        addOption("-Xcompiler-option");
807        addOption("--compiler-filter=verify-none");
808
809        // We skip compilation when a minimal runtime is brought up for decryption. In that case
810        // /data is temporarily backed by a tmpfs, which is usually small.
811        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
812        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
813        // directly instead.
814        addOption("--runtime-arg");
815        addOption("-Xnorelocate");
816    } else {
817        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
818                            "--compiler-filter=", "-Xcompiler-option");
819    }
820    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
821    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
822                        "-Ximage-compiler-option");
823
824    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
825    // pass the instruction-set-features/variant as an image-compiler-option.
826    // TODO: Find a better way for the instruction-set.
827#if defined(__arm__)
828    constexpr const char* instruction_set = "arm";
829#elif defined(__aarch64__)
830    constexpr const char* instruction_set = "arm64";
831#elif defined(__mips__) && !defined(__LP64__)
832    constexpr const char* instruction_set = "mips";
833#elif defined(__mips__) && defined(__LP64__)
834    constexpr const char* instruction_set = "mips64";
835#elif defined(__i386__)
836    constexpr const char* instruction_set = "x86";
837#elif defined(__x86_64__)
838    constexpr const char* instruction_set = "x86_64";
839#else
840    constexpr const char* instruction_set = "unknown";
841#endif
842    // Note: it is OK to reuse the buffer, as the values are exactly the same between
843    //       * compiler-option, used for runtime compilation (DexClassLoader)
844    //       * image-compiler-option, used for boot-image compilation on device
845
846    // Copy the variant.
847    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
848    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
849                        "--instruction-set-variant=", "-Ximage-compiler-option");
850    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
851                        "--instruction-set-variant=", "-Xcompiler-option");
852    // Copy the features.
853    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
854    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
855                        "--instruction-set-features=", "-Ximage-compiler-option");
856    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
857                        "--instruction-set-features=", "-Xcompiler-option");
858
859
860    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
861    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
862
863    /* extra options; parse this late so it overrides others */
864    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
865    parseExtraOpts(extraOptsBuf, NULL);
866
867    /* Set the properties for locale */
868    {
869        strcpy(localeOption, "-Duser.locale=");
870        const std::string locale = readLocale();
871        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
872        addOption(localeOption);
873    }
874
875    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
876    property_get("ro.debuggable", propBuf, "0");
877    if (strcmp(propBuf, "1") == 0) {
878        property_get("dalvik.vm.method-trace", propBuf, "false");
879        if (strcmp(propBuf, "true") == 0) {
880            addOption("-Xmethod-trace");
881            parseRuntimeOption("dalvik.vm.method-trace-file",
882                               methodTraceFileBuf,
883                               "-Xmethod-trace-file:");
884            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
885                               methodTraceFileSizeBuf,
886                               "-Xmethod-trace-file-size:");
887            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
888            if (strcmp(propBuf, "true") == 0) {
889                addOption("-Xmethod-trace-stream");
890            }
891        }
892    }
893
894    // Native bridge library. "0" means that native bridge is disabled.
895    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
896    if (propBuf[0] == '\0') {
897        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
898    } else if (strcmp(propBuf, "0") != 0) {
899        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
900                 "-XX:NativeBridge=%s", propBuf);
901        addOption(nativeBridgeLibrary);
902    }
903
904#if defined(__LP64__)
905    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
906#else
907    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
908#endif  // defined(__LP64__)
909    property_get(cpu_abilist_property_name, propBuf, "");
910    if (propBuf[0] == '\0') {
911        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
912        return -1;
913    }
914    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
915    addOption(cpuAbiListBuf);
916
917    // Dalvik-cache pruning counter.
918    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
919                       "-Xzygote-max-boot-retry=");
920
921    /*
922     * When running with debug.generate-debug-info, add --generate-debug-info to
923     * the compiler options so that the boot image, if it is compiled on device,
924     * will include native debugging information.
925     */
926    property_get("debug.generate-debug-info", propBuf, "");
927    if (strcmp(propBuf, "true") == 0) {
928        addOption("-Xcompiler-option");
929        addOption("--generate-debug-info");
930        addOption("-Ximage-compiler-option");
931        addOption("--generate-debug-info");
932    }
933
934    /*
935     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
936     * contain the fingerprint and can be parsed.
937     */
938    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
939
940    initArgs.version = JNI_VERSION_1_4;
941    initArgs.options = mOptions.editArray();
942    initArgs.nOptions = mOptions.size();
943    initArgs.ignoreUnrecognized = JNI_FALSE;
944
945    /*
946     * Initialize the VM.
947     *
948     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
949     * If this call succeeds, the VM is ready, and we can start issuing
950     * JNI calls.
951     */
952    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
953        ALOGE("JNI_CreateJavaVM failed\n");
954        return -1;
955    }
956
957    return 0;
958}
959
960char* AndroidRuntime::toSlashClassName(const char* className)
961{
962    char* result = strdup(className);
963    for (char* cp = result; *cp != '\0'; cp++) {
964        if (*cp == '.') {
965            *cp = '/';
966        }
967    }
968    return result;
969}
970
971/** Create a Java string from an ASCII or Latin-1 string */
972jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
973    if (!bytes) return NULL;
974    int length = strlen(bytes);
975    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
976    if (!buffer) return NULL;
977    jchar* chp = buffer;
978    for (int i = 0; i < length; i++) {
979        *chp++ = *bytes++;
980    }
981    return env->NewString(buffer, length);
982}
983
984
985/*
986 * Start the Android runtime.  This involves starting the virtual machine
987 * and calling the "static void main(String[] args)" method in the class
988 * named by "className".
989 *
990 * Passes the main function two arguments, the class name and the specified
991 * options string.
992 */
993void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
994{
995    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
996            className != NULL ? className : "(unknown)", getuid());
997
998    static const String8 startSystemServer("start-system-server");
999
1000    /*
1001     * 'startSystemServer == true' means runtime is obsolete and not run from
1002     * init.rc anymore, so we print out the boot start event here.
1003     */
1004    for (size_t i = 0; i < options.size(); ++i) {
1005        if (options[i] == startSystemServer) {
1006           /* track our progress through the boot sequence */
1007           const int LOG_BOOT_PROGRESS_START = 3000;
1008           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
1009        }
1010    }
1011
1012    const char* rootDir = getenv("ANDROID_ROOT");
1013    if (rootDir == NULL) {
1014        rootDir = "/system";
1015        if (!hasDir("/system")) {
1016            LOG_FATAL("No root directory specified, and /android does not exist.");
1017            return;
1018        }
1019        setenv("ANDROID_ROOT", rootDir, 1);
1020    }
1021
1022    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1023    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1024
1025    /* start the virtual machine */
1026    JniInvocation jni_invocation;
1027    jni_invocation.Init(NULL);
1028    JNIEnv* env;
1029    if (startVm(&mJavaVM, &env, zygote) != 0) {
1030        return;
1031    }
1032    onVmCreated(env);
1033
1034    /*
1035     * Register android functions.
1036     */
1037    if (startReg(env) < 0) {
1038        ALOGE("Unable to register all android natives\n");
1039        return;
1040    }
1041
1042    /*
1043     * We want to call main() with a String array with arguments in it.
1044     * At present we have two arguments, the class name and an option string.
1045     * Create an array to hold them.
1046     */
1047    jclass stringClass;
1048    jobjectArray strArray;
1049    jstring classNameStr;
1050
1051    stringClass = env->FindClass("java/lang/String");
1052    assert(stringClass != NULL);
1053    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1054    assert(strArray != NULL);
1055    classNameStr = env->NewStringUTF(className);
1056    assert(classNameStr != NULL);
1057    env->SetObjectArrayElement(strArray, 0, classNameStr);
1058
1059    for (size_t i = 0; i < options.size(); ++i) {
1060        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1061        assert(optionsStr != NULL);
1062        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1063    }
1064
1065    /*
1066     * Start VM.  This thread becomes the main thread of the VM, and will
1067     * not return until the VM exits.
1068     */
1069    char* slashClassName = toSlashClassName(className);
1070    jclass startClass = env->FindClass(slashClassName);
1071    if (startClass == NULL) {
1072        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1073        /* keep going */
1074    } else {
1075        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1076            "([Ljava/lang/String;)V");
1077        if (startMeth == NULL) {
1078            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1079            /* keep going */
1080        } else {
1081            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1082
1083#if 0
1084            if (env->ExceptionCheck())
1085                threadExitUncaughtException(env);
1086#endif
1087        }
1088    }
1089    free(slashClassName);
1090
1091    ALOGD("Shutting down VM\n");
1092    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1093        ALOGW("Warning: unable to detach main thread\n");
1094    if (mJavaVM->DestroyJavaVM() != 0)
1095        ALOGW("Warning: VM did not shut down cleanly\n");
1096}
1097
1098void AndroidRuntime::exit(int code)
1099{
1100    if (mExitWithoutCleanup) {
1101        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1102        ::_exit(code);
1103    } else {
1104        ALOGI("VM exiting with result code %d.", code);
1105        onExit(code);
1106        ::exit(code);
1107    }
1108}
1109
1110void AndroidRuntime::onVmCreated(JNIEnv* env)
1111{
1112    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1113}
1114
1115/*
1116 * Get the JNIEnv pointer for this thread.
1117 *
1118 * Returns NULL if the slot wasn't allocated or populated.
1119 */
1120/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1121{
1122    JNIEnv* env;
1123    JavaVM* vm = AndroidRuntime::getJavaVM();
1124    assert(vm != NULL);
1125
1126    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1127        return NULL;
1128    return env;
1129}
1130
1131/*
1132 * Makes the current thread visible to the VM.
1133 *
1134 * The JNIEnv pointer returned is only valid for the current thread, and
1135 * thus must be tucked into thread-local storage.
1136 */
1137static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1138{
1139    JavaVMAttachArgs args;
1140    JavaVM* vm;
1141    jint result;
1142
1143    vm = AndroidRuntime::getJavaVM();
1144    assert(vm != NULL);
1145
1146    args.version = JNI_VERSION_1_4;
1147    args.name = (char*) threadName;
1148    args.group = NULL;
1149
1150    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1151    if (result != JNI_OK)
1152        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1153
1154    return result;
1155}
1156
1157/*
1158 * Detach the current thread from the set visible to the VM.
1159 */
1160static int javaDetachThread(void)
1161{
1162    JavaVM* vm;
1163    jint result;
1164
1165    vm = AndroidRuntime::getJavaVM();
1166    assert(vm != NULL);
1167
1168    result = vm->DetachCurrentThread();
1169    if (result != JNI_OK)
1170        ALOGE("ERROR: thread detach failed\n");
1171    return result;
1172}
1173
1174/*
1175 * When starting a native thread that will be visible from the VM, we
1176 * bounce through this to get the right attach/detach action.
1177 * Note that this function calls free(args)
1178 */
1179/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1180    void* start = ((void**)args)[0];
1181    void* userData = ((void **)args)[1];
1182    char* name = (char*) ((void **)args)[2];        // we own this storage
1183    free(args);
1184    JNIEnv* env;
1185    int result;
1186
1187    /* hook us into the VM */
1188    if (javaAttachThread(name, &env) != JNI_OK)
1189        return -1;
1190
1191    /* start the thread running */
1192    result = (*(android_thread_func_t)start)(userData);
1193
1194    /* unhook us */
1195    javaDetachThread();
1196    free(name);
1197
1198    return result;
1199}
1200
1201/*
1202 * This is invoked from androidCreateThreadEtc() via the callback
1203 * set with androidSetCreateThreadFunc().
1204 *
1205 * We need to create the new thread in such a way that it gets hooked
1206 * into the VM before it really starts executing.
1207 */
1208/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1209                                android_thread_func_t entryFunction,
1210                                void* userData,
1211                                const char* threadName,
1212                                int32_t threadPriority,
1213                                size_t threadStackSize,
1214                                android_thread_id_t* threadId)
1215{
1216    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1217    int result;
1218
1219    LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1220
1221    args[0] = (void*) entryFunction;
1222    args[1] = userData;
1223    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1224
1225    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1226        threadName, threadPriority, threadStackSize, threadId);
1227    return result;
1228}
1229
1230/*
1231 * Create a thread that is visible from the VM.
1232 *
1233 * This is called from elsewhere in the library.
1234 */
1235/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1236    void (*start)(void *), void* arg)
1237{
1238    android_thread_id_t threadId = 0;
1239    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1240        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1241    return threadId;
1242}
1243
1244#if 0
1245static void quickTest(void* arg)
1246{
1247    const char* str = (const char*) arg;
1248
1249    printf("In quickTest: %s\n", str);
1250}
1251#endif
1252
1253#ifdef NDEBUG
1254    #define REG_JNI(name)      { name }
1255    struct RegJNIRec {
1256        int (*mProc)(JNIEnv*);
1257    };
1258#else
1259    #define REG_JNI(name)      { name, #name }
1260    struct RegJNIRec {
1261        int (*mProc)(JNIEnv*);
1262        const char* mName;
1263    };
1264#endif
1265
1266typedef void (*RegJAMProc)();
1267
1268static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1269{
1270    for (size_t i = 0; i < count; i++) {
1271        if (array[i].mProc(env) < 0) {
1272#ifndef NDEBUG
1273            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1274#endif
1275            return -1;
1276        }
1277    }
1278    return 0;
1279}
1280
1281static const RegJNIRec gRegJNI[] = {
1282    REG_JNI(register_com_android_internal_os_RuntimeInit),
1283    REG_JNI(register_com_android_internal_os_ZygoteInit),
1284    REG_JNI(register_android_os_SystemClock),
1285    REG_JNI(register_android_util_EventLog),
1286    REG_JNI(register_android_util_Log),
1287    REG_JNI(register_android_util_MemoryIntArray),
1288    REG_JNI(register_android_util_PathParser),
1289    REG_JNI(register_android_app_admin_SecurityLog),
1290    REG_JNI(register_android_content_AssetManager),
1291    REG_JNI(register_android_content_StringBlock),
1292    REG_JNI(register_android_content_XmlBlock),
1293    REG_JNI(register_android_text_AndroidCharacter),
1294    REG_JNI(register_android_text_StaticLayout),
1295    REG_JNI(register_android_text_AndroidBidi),
1296    REG_JNI(register_android_view_InputDevice),
1297    REG_JNI(register_android_view_KeyCharacterMap),
1298    REG_JNI(register_android_os_Process),
1299    REG_JNI(register_android_os_SystemProperties),
1300    REG_JNI(register_android_os_Binder),
1301    REG_JNI(register_android_os_Parcel),
1302    REG_JNI(register_android_os_HwBinder),
1303    REG_JNI(register_android_os_HwBlob),
1304    REG_JNI(register_android_os_HwParcel),
1305    REG_JNI(register_android_os_HwRemoteBinder),
1306    REG_JNI(register_android_os_VintfObject),
1307    REG_JNI(register_android_nio_utils),
1308    REG_JNI(register_android_graphics_Canvas),
1309    REG_JNI(register_android_graphics_Graphics),
1310    REG_JNI(register_android_view_DisplayEventReceiver),
1311    REG_JNI(register_android_view_RenderNode),
1312    REG_JNI(register_android_view_RenderNodeAnimator),
1313    REG_JNI(register_android_view_DisplayListCanvas),
1314    REG_JNI(register_android_view_HardwareLayer),
1315    REG_JNI(register_android_view_ThreadedRenderer),
1316    REG_JNI(register_android_view_Surface),
1317    REG_JNI(register_android_view_SurfaceControl),
1318    REG_JNI(register_android_view_SurfaceSession),
1319    REG_JNI(register_android_view_TextureView),
1320    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1321    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1322    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1323    REG_JNI(register_android_opengl_jni_EGL14),
1324    REG_JNI(register_android_opengl_jni_EGLExt),
1325    REG_JNI(register_android_opengl_jni_GLES10),
1326    REG_JNI(register_android_opengl_jni_GLES10Ext),
1327    REG_JNI(register_android_opengl_jni_GLES11),
1328    REG_JNI(register_android_opengl_jni_GLES11Ext),
1329    REG_JNI(register_android_opengl_jni_GLES20),
1330    REG_JNI(register_android_opengl_jni_GLES30),
1331    REG_JNI(register_android_opengl_jni_GLES31),
1332    REG_JNI(register_android_opengl_jni_GLES31Ext),
1333    REG_JNI(register_android_opengl_jni_GLES32),
1334
1335    REG_JNI(register_android_graphics_Bitmap),
1336    REG_JNI(register_android_graphics_BitmapFactory),
1337    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1338    REG_JNI(register_android_graphics_Camera),
1339    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1340    REG_JNI(register_android_graphics_CanvasProperty),
1341    REG_JNI(register_android_graphics_ColorFilter),
1342    REG_JNI(register_android_graphics_DrawFilter),
1343    REG_JNI(register_android_graphics_FontFamily),
1344    REG_JNI(register_android_graphics_GraphicBuffer),
1345    REG_JNI(register_android_graphics_Interpolator),
1346    REG_JNI(register_android_graphics_MaskFilter),
1347    REG_JNI(register_android_graphics_Matrix),
1348    REG_JNI(register_android_graphics_Movie),
1349    REG_JNI(register_android_graphics_NinePatch),
1350    REG_JNI(register_android_graphics_Paint),
1351    REG_JNI(register_android_graphics_Path),
1352    REG_JNI(register_android_graphics_PathMeasure),
1353    REG_JNI(register_android_graphics_PathEffect),
1354    REG_JNI(register_android_graphics_Picture),
1355    REG_JNI(register_android_graphics_Region),
1356    REG_JNI(register_android_graphics_Shader),
1357    REG_JNI(register_android_graphics_SurfaceTexture),
1358    REG_JNI(register_android_graphics_Typeface),
1359    REG_JNI(register_android_graphics_YuvImage),
1360    REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
1361    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1362    REG_JNI(register_android_graphics_pdf_PdfDocument),
1363    REG_JNI(register_android_graphics_pdf_PdfEditor),
1364    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1365
1366    REG_JNI(register_android_database_CursorWindow),
1367    REG_JNI(register_android_database_SQLiteConnection),
1368    REG_JNI(register_android_database_SQLiteGlobal),
1369    REG_JNI(register_android_database_SQLiteDebug),
1370    REG_JNI(register_android_os_Debug),
1371    REG_JNI(register_android_os_FileObserver),
1372    REG_JNI(register_android_os_GraphicsEnvironment),
1373    REG_JNI(register_android_os_MessageQueue),
1374    REG_JNI(register_android_os_SELinux),
1375    REG_JNI(register_android_os_seccomp),
1376    REG_JNI(register_android_os_Trace),
1377    REG_JNI(register_android_os_UEventObserver),
1378    REG_JNI(register_android_net_LocalSocketImpl),
1379    REG_JNI(register_android_net_NetworkUtils),
1380    REG_JNI(register_android_net_TrafficStats),
1381    REG_JNI(register_android_os_MemoryFile),
1382    REG_JNI(register_com_android_internal_os_PathClassLoaderFactory),
1383    REG_JNI(register_com_android_internal_os_Zygote),
1384    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1385    REG_JNI(register_android_hardware_Camera),
1386    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1387    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1388    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1389    REG_JNI(register_android_hardware_camera2_DngCreator),
1390    REG_JNI(register_android_hardware_HardwareBuffer),
1391    REG_JNI(register_android_hardware_Radio),
1392    REG_JNI(register_android_hardware_SensorManager),
1393    REG_JNI(register_android_hardware_SerialPort),
1394    REG_JNI(register_android_hardware_SoundTrigger),
1395    REG_JNI(register_android_hardware_UsbDevice),
1396    REG_JNI(register_android_hardware_UsbDeviceConnection),
1397    REG_JNI(register_android_hardware_UsbRequest),
1398    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1399    REG_JNI(register_android_media_AudioRecord),
1400    REG_JNI(register_android_media_AudioSystem),
1401    REG_JNI(register_android_media_AudioTrack),
1402    REG_JNI(register_android_media_JetPlayer),
1403    REG_JNI(register_android_media_RemoteDisplay),
1404    REG_JNI(register_android_media_ToneGenerator),
1405
1406    REG_JNI(register_android_opengl_classes),
1407    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1408    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1409    REG_JNI(register_android_backup_BackupDataInput),
1410    REG_JNI(register_android_backup_BackupDataOutput),
1411    REG_JNI(register_android_backup_FileBackupHelperBase),
1412    REG_JNI(register_android_backup_BackupHelperDispatcher),
1413    REG_JNI(register_android_app_backup_FullBackup),
1414    REG_JNI(register_android_app_Activity),
1415    REG_JNI(register_android_app_ActivityThread),
1416    REG_JNI(register_android_app_ApplicationLoaders),
1417    REG_JNI(register_android_app_NativeActivity),
1418    REG_JNI(register_android_util_jar_StrictJarFile),
1419    REG_JNI(register_android_view_InputChannel),
1420    REG_JNI(register_android_view_InputEventReceiver),
1421    REG_JNI(register_android_view_InputEventSender),
1422    REG_JNI(register_android_view_InputQueue),
1423    REG_JNI(register_android_view_KeyEvent),
1424    REG_JNI(register_android_view_MotionEvent),
1425    REG_JNI(register_android_view_PointerIcon),
1426    REG_JNI(register_android_view_VelocityTracker),
1427
1428    REG_JNI(register_android_content_res_ObbScanner),
1429    REG_JNI(register_android_content_res_Configuration),
1430
1431    REG_JNI(register_android_animation_PropertyValuesHolder),
1432    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1433    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1434    REG_JNI(register_com_android_internal_os_FuseAppLoop),
1435};
1436
1437/*
1438 * Register android native functions with the VM.
1439 */
1440/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1441{
1442    ATRACE_NAME("RegisterAndroidNatives");
1443    /*
1444     * This hook causes all future threads created in this process to be
1445     * attached to the JavaVM.  (This needs to go away in favor of JNI
1446     * Attach calls.)
1447     */
1448    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1449
1450    ALOGV("--- registering native functions ---\n");
1451
1452    /*
1453     * Every "register" function calls one or more things that return
1454     * a local reference (e.g. FindClass).  Because we haven't really
1455     * started the VM yet, they're all getting stored in the base frame
1456     * and never released.  Use Push/Pop to manage the storage.
1457     */
1458    env->PushLocalFrame(200);
1459
1460    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1461        env->PopLocalFrame(NULL);
1462        return -1;
1463    }
1464    env->PopLocalFrame(NULL);
1465
1466    //createJavaThread("fubar", quickTest, (void*) "hello");
1467
1468    return 0;
1469}
1470
1471AndroidRuntime* AndroidRuntime::getRuntime()
1472{
1473    return gCurRuntime;
1474}
1475
1476/**
1477 * Used by surface flinger's DdmConnection to register native methods from
1478 * the framework.
1479 */
1480extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1481    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1482}
1483}   // namespace android
1484