AndroidRuntime.cpp revision 8b8b242985d3b12d21be11e8f0efb74d3236ea74 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define ATRACE_TAG ATRACE_TAG_DALVIK
18#define LOG_TAG "AndroidRuntime"
19//#define LOG_NDEBUG 0
20
21#include <android_runtime/AndroidRuntime.h>
22#include <binder/IBinder.h>
23#include <binder/IPCThreadState.h>
24#include <binder/IServiceManager.h>
25#include <utils/Log.h>
26#include <utils/misc.h>
27#include <utils/Trace.h>
28#include <binder/Parcel.h>
29#include <utils/threads.h>
30#include <cutils/properties.h>
31
32#include <SkGraphics.h>
33#include <SkImageDecoder.h>
34
35#include "jni.h"
36#include "JNIHelp.h"
37#include "JniInvocation.h"
38#include "android_util_Binder.h"
39
40#include <stdio.h>
41#include <signal.h>
42#include <sys/stat.h>
43#include <sys/types.h>
44#include <signal.h>
45#include <dirent.h>
46#include <assert.h>
47
48#include <string>
49#include <vector>
50
51
52using namespace android;
53
54extern int register_android_os_Binder(JNIEnv* env);
55extern int register_android_os_Process(JNIEnv* env);
56extern int register_android_graphics_Bitmap(JNIEnv*);
57extern int register_android_graphics_BitmapFactory(JNIEnv*);
58extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
59extern int register_android_graphics_Camera(JNIEnv* env);
60extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
61extern int register_android_graphics_Graphics(JNIEnv* env);
62extern int register_android_graphics_Interpolator(JNIEnv* env);
63extern int register_android_graphics_MaskFilter(JNIEnv* env);
64extern int register_android_graphics_Movie(JNIEnv* env);
65extern int register_android_graphics_NinePatch(JNIEnv*);
66extern int register_android_graphics_PathEffect(JNIEnv* env);
67extern int register_android_graphics_Shader(JNIEnv* env);
68extern int register_android_graphics_Typeface(JNIEnv* env);
69extern int register_android_graphics_YuvImage(JNIEnv* env);
70
71extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
72extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
73extern int register_android_opengl_jni_EGL14(JNIEnv* env);
74extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
75extern int register_android_opengl_jni_GLES10(JNIEnv* env);
76extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
77extern int register_android_opengl_jni_GLES11(JNIEnv* env);
78extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
79extern int register_android_opengl_jni_GLES20(JNIEnv* env);
80extern int register_android_opengl_jni_GLES30(JNIEnv* env);
81extern int register_android_opengl_jni_GLES31(JNIEnv* env);
82extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
83extern int register_android_opengl_jni_GLES32(JNIEnv* env);
84
85extern int register_android_hardware_Camera(JNIEnv *env);
86extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
87extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env);
88extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env);
89extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
90extern int register_android_hardware_Radio(JNIEnv *env);
91extern int register_android_hardware_SensorManager(JNIEnv *env);
92extern int register_android_hardware_SerialPort(JNIEnv *env);
93extern int register_android_hardware_SoundTrigger(JNIEnv *env);
94extern int register_android_hardware_UsbDevice(JNIEnv *env);
95extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
96extern int register_android_hardware_UsbRequest(JNIEnv *env);
97extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
98
99extern int register_android_media_AudioRecord(JNIEnv *env);
100extern int register_android_media_AudioSystem(JNIEnv *env);
101extern int register_android_media_AudioTrack(JNIEnv *env);
102extern int register_android_media_JetPlayer(JNIEnv *env);
103extern int register_android_media_ToneGenerator(JNIEnv *env);
104
105namespace android {
106
107/*
108 * JNI-based registration functions.  Note these are properly contained in
109 * namespace android.
110 */
111extern int register_android_auditing_SecurityLog(JNIEnv* env);
112extern int register_android_content_AssetManager(JNIEnv* env);
113extern int register_android_util_EventLog(JNIEnv* env);
114extern int register_android_util_Log(JNIEnv* env);
115extern int register_android_util_PathParser(JNIEnv* env);
116extern int register_android_content_StringBlock(JNIEnv* env);
117extern int register_android_content_XmlBlock(JNIEnv* env);
118extern int register_android_graphics_Canvas(JNIEnv* env);
119extern int register_android_graphics_CanvasProperty(JNIEnv* env);
120extern int register_android_graphics_ColorFilter(JNIEnv* env);
121extern int register_android_graphics_DrawFilter(JNIEnv* env);
122extern int register_android_graphics_FontFamily(JNIEnv* env);
123extern int register_android_graphics_LayerRasterizer(JNIEnv*);
124extern int register_android_graphics_Matrix(JNIEnv* env);
125extern int register_android_graphics_Paint(JNIEnv* env);
126extern int register_android_graphics_Path(JNIEnv* env);
127extern int register_android_graphics_PathMeasure(JNIEnv* env);
128extern int register_android_graphics_Picture(JNIEnv*);
129extern int register_android_graphics_PorterDuff(JNIEnv* env);
130extern int register_android_graphics_Rasterizer(JNIEnv* env);
131extern int register_android_graphics_Region(JNIEnv* env);
132extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
133extern int register_android_graphics_Xfermode(JNIEnv* env);
134extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
135extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
136extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
137extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
138extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
139extern int register_android_view_DisplayListCanvas(JNIEnv* env);
140extern int register_android_view_GraphicBuffer(JNIEnv* env);
141extern int register_android_view_HardwareLayer(JNIEnv* env);
142extern int register_android_view_RenderNode(JNIEnv* env);
143extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
144extern int register_android_view_Surface(JNIEnv* env);
145extern int register_android_view_SurfaceControl(JNIEnv* env);
146extern int register_android_view_SurfaceSession(JNIEnv* env);
147extern int register_android_view_TextureView(JNIEnv* env);
148extern int register_android_view_ThreadedRenderer(JNIEnv* env);
149extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
150extern int register_android_database_CursorWindow(JNIEnv* env);
151extern int register_android_database_SQLiteConnection(JNIEnv* env);
152extern int register_android_database_SQLiteGlobal(JNIEnv* env);
153extern int register_android_database_SQLiteDebug(JNIEnv* env);
154extern int register_android_nio_utils(JNIEnv* env);
155extern int register_android_os_Debug(JNIEnv* env);
156extern int register_android_os_MessageQueue(JNIEnv* env);
157extern int register_android_os_Parcel(JNIEnv* env);
158extern int register_android_os_SELinux(JNIEnv* env);
159extern int register_android_os_SystemProperties(JNIEnv *env);
160extern int register_android_os_SystemClock(JNIEnv* env);
161extern int register_android_os_Trace(JNIEnv* env);
162extern int register_android_os_FileObserver(JNIEnv *env);
163extern int register_android_os_UEventObserver(JNIEnv* env);
164extern int register_android_os_MemoryFile(JNIEnv* env);
165extern int register_android_net_LocalSocketImpl(JNIEnv* env);
166extern int register_android_net_NetworkUtils(JNIEnv* env);
167extern int register_android_net_TrafficStats(JNIEnv* env);
168extern int register_android_text_AndroidCharacter(JNIEnv *env);
169extern int register_android_text_StaticLayout(JNIEnv *env);
170extern int register_android_text_AndroidBidi(JNIEnv *env);
171extern int register_android_opengl_classes(JNIEnv *env);
172extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
173extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
174extern int register_android_backup_BackupDataInput(JNIEnv *env);
175extern int register_android_backup_BackupDataOutput(JNIEnv *env);
176extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
177extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
178extern int register_android_app_backup_FullBackup(JNIEnv *env);
179extern int register_android_app_ActivityThread(JNIEnv *env);
180extern int register_android_app_NativeActivity(JNIEnv *env);
181extern int register_android_media_RemoteDisplay(JNIEnv *env);
182extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
183extern int register_android_view_InputChannel(JNIEnv* env);
184extern int register_android_view_InputDevice(JNIEnv* env);
185extern int register_android_view_InputEventReceiver(JNIEnv* env);
186extern int register_android_view_InputEventSender(JNIEnv* env);
187extern int register_android_view_InputQueue(JNIEnv* env);
188extern int register_android_view_KeyCharacterMap(JNIEnv *env);
189extern int register_android_view_KeyEvent(JNIEnv* env);
190extern int register_android_view_MotionEvent(JNIEnv* env);
191extern int register_android_view_PointerIcon(JNIEnv* env);
192extern int register_android_view_VelocityTracker(JNIEnv* env);
193extern int register_android_content_res_ObbScanner(JNIEnv* env);
194extern int register_android_content_res_Configuration(JNIEnv* env);
195extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
196extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
197extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
198extern int register_com_android_internal_os_Zygote(JNIEnv *env);
199extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
200extern int register_android_os_HardwarePropertiesManager(JNIEnv *env);
201
202static AndroidRuntime* gCurRuntime = NULL;
203
204/*
205 * Code written in the Java Programming Language calls here from main().
206 */
207static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
208{
209    gCurRuntime->onStarted();
210}
211
212static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
213{
214    gCurRuntime->onZygoteInit();
215}
216
217static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
218        jobject clazz, jboolean exitWithoutCleanup)
219{
220    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
221}
222
223/*
224 * JNI registration.
225 */
226static const JNINativeMethod gMethods[] = {
227    { "nativeFinishInit", "()V",
228        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
229    { "nativeZygoteInit", "()V",
230        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
231    { "nativeSetExitWithoutCleanup", "(Z)V",
232        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
233};
234
235int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
236{
237    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
238        gMethods, NELEM(gMethods));
239}
240
241// ----------------------------------------------------------------------
242
243/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
244
245AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
246        mExitWithoutCleanup(false),
247        mArgBlockStart(argBlockStart),
248        mArgBlockLength(argBlockLength)
249{
250    SkGraphics::Init();
251    // There is also a global font cache, but its budget is specified by
252    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
253
254    // Pre-allocate enough space to hold a fair number of options.
255    mOptions.setCapacity(20);
256
257    assert(gCurRuntime == NULL);        // one per process
258    gCurRuntime = this;
259}
260
261AndroidRuntime::~AndroidRuntime()
262{
263    SkGraphics::Term();
264}
265
266/*
267 * Register native methods using JNI.
268 */
269/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
270    const char* className, const JNINativeMethod* gMethods, int numMethods)
271{
272    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
273}
274
275void AndroidRuntime::setArgv0(const char* argv0) {
276    memset(mArgBlockStart, 0, mArgBlockLength);
277    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
278}
279
280status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
281    const Vector<String8>& args)
282{
283    JNIEnv* env;
284    jmethodID methodId;
285
286    ALOGD("Calling main entry %s", className.string());
287
288    env = getJNIEnv();
289    if (clazz == NULL || env == NULL) {
290        return UNKNOWN_ERROR;
291    }
292
293    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
294    if (methodId == NULL) {
295        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
296        return UNKNOWN_ERROR;
297    }
298
299    /*
300     * We want to call main() with a String array with our arguments in it.
301     * Create an array and populate it.
302     */
303    jclass stringClass;
304    jobjectArray strArray;
305
306    const size_t numArgs = args.size();
307    stringClass = env->FindClass("java/lang/String");
308    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
309
310    for (size_t i = 0; i < numArgs; i++) {
311        jstring argStr = env->NewStringUTF(args[i].string());
312        env->SetObjectArrayElement(strArray, i, argStr);
313    }
314
315    env->CallStaticVoidMethod(clazz, methodId, strArray);
316    return NO_ERROR;
317}
318
319/*
320 * The VM calls this through the "exit" hook.
321 */
322static void runtime_exit(int code)
323{
324    gCurRuntime->exit(code);
325}
326
327/*
328 * The VM calls this through the "vfprintf" hook.
329 *
330 * We ignore "fp" and just write the results to the log file.
331 */
332static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
333{
334    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
335}
336
337/**
338 * The VM calls this when mutex contention debugging is enabled to
339 * determine whether or not the blocked thread was a "sensitive thread"
340 * for user responsiveness/smoothess.
341 *
342 * Our policy for this is whether or not we're tracing any StrictMode
343 * events on this thread (which we might've inherited via Binder calls
344 * into us)
345 */
346static bool runtime_isSensitiveThread() {
347    IPCThreadState* state = IPCThreadState::selfOrNull();
348    return state && state->getStrictModePolicy() != 0;
349}
350
351static int hasDir(const char* dir)
352{
353    struct stat s;
354    int res = stat(dir, &s);
355    if (res == 0) {
356        return S_ISDIR(s.st_mode);
357    }
358    return 0;
359}
360
361static bool hasFile(const char* file) {
362    struct stat s;
363    int res = stat(file, &s);
364    if (res == 0) {
365        return S_ISREG(s.st_mode);
366    }
367    return false;
368}
369
370// Convenience wrapper over the property API that returns an
371// std::string.
372std::string getProperty(const char* key, const char* defaultValue) {
373    std::vector<char> temp(PROPERTY_VALUE_MAX);
374    const int len = property_get(key, &temp[0], defaultValue);
375    if (len < 0) {
376        return "";
377    }
378    return std::string(&temp[0], len);
379}
380
381/*
382 * Read the persistent locale. Inspects the following system properties
383 * (in order) and returns the first non-empty property in the list :
384 *
385 * (1) persist.sys.locale
386 * (2) persist.sys.language/country/localevar (country and localevar are
387 * inspected iff. language is non-empty.
388 * (3) ro.product.locale
389 * (4) ro.product.locale.language/region
390 *
391 * Note that we need to inspect persist.sys.language/country/localevar to
392 * preserve language settings for devices that are upgrading from Lollipop
393 * to M. The same goes for ro.product.locale.language/region as well.
394 */
395const std::string readLocale()
396{
397    const std::string locale = getProperty("persist.sys.locale", "");
398    if (!locale.empty()) {
399        return locale;
400    }
401
402    const std::string language = getProperty("persist.sys.language", "");
403    if (!language.empty()) {
404        const std::string country = getProperty("persist.sys.country", "");
405        const std::string variant = getProperty("persist.sys.localevar", "");
406
407        std::string out = language;
408        if (!country.empty()) {
409            out = out + "-" + country;
410        }
411
412        if (!variant.empty()) {
413            out = out + "-" + variant;
414        }
415
416        return out;
417    }
418
419    const std::string productLocale = getProperty("ro.product.locale", "");
420    if (!productLocale.empty()) {
421        return productLocale;
422    }
423
424    // If persist.sys.locale and ro.product.locale are missing,
425    // construct a locale value from the individual locale components.
426    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
427    const std::string productRegion = getProperty("ro.product.locale.region", "US");
428
429    return productLanguage + "-" + productRegion;
430}
431
432void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
433{
434    JavaVMOption opt;
435    opt.optionString = optionString;
436    opt.extraInfo = extraInfo;
437    mOptions.add(opt);
438}
439
440/*
441 * Parse a property containing space-separated options that should be
442 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
443 *
444 * This will cut up "extraOptsBuf" as we chop it into individual options.
445 *
446 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
447 *
448 * Adds the strings, if any, to mOptions.
449 */
450void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
451{
452    char* start = extraOptsBuf;
453    char* end = NULL;
454    while (*start != '\0') {
455        while (*start == ' ')                   /* skip leading whitespace */
456            start++;
457        if (*start == '\0')                     /* was trailing ws, bail */
458            break;
459
460        end = start+1;
461        while (*end != ' ' && *end != '\0')     /* find end of token */
462            end++;
463        if (*end == ' ')
464            *end++ = '\0';          /* mark end, advance to indicate more */
465
466        if (quotingArg != NULL) {
467            addOption(quotingArg);
468        }
469        addOption(start);
470        start = end;
471    }
472}
473
474/*
475 * Reads a "property" into "buffer" with a default of "defaultArg". If
476 * the property is non-empty, it is treated as a runtime option such
477 * as "-Xmx32m".
478 *
479 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
480 *
481 * If an argument is found, it is added to mOptions.
482 *
483 * If an option is found, it is added to mOptions and true is
484 * returned. Otherwise false is returned.
485 */
486bool AndroidRuntime::parseRuntimeOption(const char* property,
487                                        char* buffer,
488                                        const char* runtimeArg,
489                                        const char* defaultArg)
490{
491    strcpy(buffer, runtimeArg);
492    size_t runtimeArgLen = strlen(runtimeArg);
493    property_get(property, buffer+runtimeArgLen, defaultArg);
494    if (buffer[runtimeArgLen] == '\0') {
495        return false;
496    }
497    addOption(buffer);
498    return true;
499}
500
501/*
502 * Reads a "property" into "buffer". If the property is non-empty, it
503 * is treated as a dex2oat compiler option that should be
504 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
505 *
506 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
507 *
508 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
509 *
510 * If an option is found, it is added to mOptions and true is
511 * returned. Otherwise false is returned.
512 */
513bool AndroidRuntime::parseCompilerOption(const char* property,
514                                         char* buffer,
515                                         const char* compilerArg,
516                                         const char* quotingArg)
517{
518    strcpy(buffer, compilerArg);
519    size_t compilerArgLen = strlen(compilerArg);
520    property_get(property, buffer+compilerArgLen, "");
521    if (buffer[compilerArgLen] == '\0') {
522        return false;
523    }
524    addOption(quotingArg);
525    addOption(buffer);
526    return true;
527}
528
529/*
530 * Reads a "property" into "buffer". If the property is non-empty, it
531 * is treated as a dex2oat compiler runtime option that should be
532 * passed as a quoted option, e.g. "-Ximage-compiler-option
533 * --runtime-arg -Ximage-compiler-option -Xmx32m".
534 *
535 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
536 *
537 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
538 *
539 * If an option is found, it is added to mOptions and true is
540 * returned. Otherwise false is returned.
541 */
542bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
543                                                char* buffer,
544                                                const char* runtimeArg,
545                                                const char* quotingArg)
546{
547    strcpy(buffer, runtimeArg);
548    size_t runtimeArgLen = strlen(runtimeArg);
549    property_get(property, buffer+runtimeArgLen, "");
550    if (buffer[runtimeArgLen] == '\0') {
551        return false;
552    }
553    addOption(quotingArg);
554    addOption("--runtime-arg");
555    addOption(quotingArg);
556    addOption(buffer);
557    return true;
558}
559
560/*
561 * Start the Dalvik Virtual Machine.
562 *
563 * Various arguments, most determined by system properties, are passed in.
564 * The "mOptions" vector is updated.
565 *
566 * CAUTION: when adding options in here, be careful not to put the
567 * char buffer inside a nested scope.  Adding the buffer to the
568 * options using mOptions.add() does not copy the buffer, so if the
569 * buffer goes out of scope the option may be overwritten.  It's best
570 * to put the buffer at the top of the function so that it is more
571 * unlikely that someone will surround it in a scope at a later time
572 * and thus introduce a bug.
573 *
574 * Returns 0 on success.
575 */
576int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
577{
578    JavaVMInitArgs initArgs;
579    char propBuf[PROPERTY_VALUE_MAX];
580    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
581    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
582    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
583    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
584    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
585    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
586    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
587    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
588    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
589    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
590    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
591    char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
592    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
593    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
594    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
595    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
596    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
597    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
598    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
599    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
600    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
601    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
602    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
603    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
604    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
605    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
606    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
607    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
608    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
609    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
610    char extraOptsBuf[PROPERTY_VALUE_MAX];
611    char voldDecryptBuf[PROPERTY_VALUE_MAX];
612    enum {
613      kEMDefault,
614      kEMIntPortable,
615      kEMIntFast,
616      kEMJitCompiler,
617    } executionMode = kEMDefault;
618    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
619    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
620    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
621    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
622    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
623    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
624    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
625
626    bool checkJni = false;
627    property_get("dalvik.vm.checkjni", propBuf, "");
628    if (strcmp(propBuf, "true") == 0) {
629        checkJni = true;
630    } else if (strcmp(propBuf, "false") != 0) {
631        /* property is neither true nor false; fall back on kernel parameter */
632        property_get("ro.kernel.android.checkjni", propBuf, "");
633        if (propBuf[0] == '1') {
634            checkJni = true;
635        }
636    }
637    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
638    if (checkJni) {
639        /* extended JNI checking */
640        addOption("-Xcheck:jni");
641
642        /* with -Xcheck:jni, this provides a JNI function call trace */
643        //addOption("-verbose:jni");
644    }
645
646    property_get("dalvik.vm.execution-mode", propBuf, "");
647    if (strcmp(propBuf, "int:portable") == 0) {
648        executionMode = kEMIntPortable;
649    } else if (strcmp(propBuf, "int:fast") == 0) {
650        executionMode = kEMIntFast;
651    } else if (strcmp(propBuf, "int:jit") == 0) {
652        executionMode = kEMJitCompiler;
653    }
654
655    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
656
657    strcpy(jniOptsBuf, "-Xjniopts:");
658    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
659        ALOGI("JNI options: '%s'\n", jniOptsBuf);
660    }
661
662    /* route exit() to our handler */
663    addOption("exit", (void*) runtime_exit);
664
665    /* route fprintf() to our handler */
666    addOption("vfprintf", (void*) runtime_vfprintf);
667
668    /* register the framework-specific "is sensitive thread" hook */
669    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
670
671    /* enable verbose; standard options are { jni, gc, class } */
672    //addOption("-verbose:jni");
673    addOption("-verbose:gc");
674    //addOption("-verbose:class");
675
676    /*
677     * The default starting and maximum size of the heap.  Larger
678     * values should be specified in a product property override.
679     */
680    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
681    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
682
683    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
684    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
685    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
686    parseRuntimeOption("dalvik.vm.heaptargetutilization",
687                       heaptargetutilizationOptsBuf,
688                       "-XX:HeapTargetUtilization=");
689
690    /*
691     * JIT related options.
692     */
693    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
694    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
695    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
696    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
697    property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
698    if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
699        addOption("-Xjitsaveprofilinginfo");
700    }
701
702    property_get("ro.config.low_ram", propBuf, "");
703    if (strcmp(propBuf, "true") == 0) {
704      addOption("-XX:LowMemoryMode");
705    }
706
707    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
708    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
709
710    /*
711     * Enable debugging only for apps forked from zygote.
712     * Set suspend=y to pause during VM init and use android ADB transport.
713     */
714    if (zygote) {
715      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
716    }
717
718    parseRuntimeOption("dalvik.vm.lockprof.threshold",
719                       lockProfThresholdBuf,
720                       "-Xlockprofthreshold:");
721
722    if (executionMode == kEMIntPortable) {
723        addOption("-Xint:portable");
724    } else if (executionMode == kEMIntFast) {
725        addOption("-Xint:fast");
726    } else if (executionMode == kEMJitCompiler) {
727        addOption("-Xint:jit");
728    }
729
730    // If we are booting without the real /data, don't spend time compiling.
731    property_get("vold.decrypt", voldDecryptBuf, "");
732    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
733                             (strcmp(voldDecryptBuf, "1") == 0));
734
735    // Extra options for boot.art/boot.oat image generation.
736    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
737                               "-Xms", "-Ximage-compiler-option");
738    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
739                               "-Xmx", "-Ximage-compiler-option");
740    if (skip_compilation) {
741        addOption("-Ximage-compiler-option");
742        addOption("--compiler-filter=verify-none");
743    } else {
744        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
745                            "--compiler-filter=", "-Ximage-compiler-option");
746    }
747
748    // Make sure there is a preloaded-classes file.
749    if (!hasFile("/system/etc/preloaded-classes")) {
750        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
751              strerror(errno));
752        return -1;
753    }
754    addOption("-Ximage-compiler-option");
755    addOption("--image-classes=/system/etc/preloaded-classes");
756
757    // If there is a compiled-classes file, push it.
758    if (hasFile("/system/etc/compiled-classes")) {
759        addOption("-Ximage-compiler-option");
760        addOption("--compiled-classes=/system/etc/compiled-classes");
761    }
762
763    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
764    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
765
766    // Extra options for DexClassLoader.
767    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
768                               "-Xms", "-Xcompiler-option");
769    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
770                               "-Xmx", "-Xcompiler-option");
771    if (skip_compilation) {
772        addOption("-Xcompiler-option");
773        addOption("--compiler-filter=verify-none");
774
775        // We skip compilation when a minimal runtime is brought up for decryption. In that case
776        // /data is temporarily backed by a tmpfs, which is usually small.
777        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
778        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
779        // directly instead.
780        addOption("--runtime-arg");
781        addOption("-Xnorelocate");
782    } else {
783        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
784                            "--compiler-filter=", "-Xcompiler-option");
785    }
786    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
787    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
788                        "-Ximage-compiler-option");
789
790    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
791    // pass the instruction-set-features/variant as an image-compiler-option.
792    // TODO: Find a better way for the instruction-set.
793#if defined(__arm__)
794    constexpr const char* instruction_set = "arm";
795#elif defined(__aarch64__)
796    constexpr const char* instruction_set = "arm64";
797#elif defined(__mips__) && !defined(__LP64__)
798    constexpr const char* instruction_set = "mips";
799#elif defined(__mips__) && defined(__LP64__)
800    constexpr const char* instruction_set = "mips64";
801#elif defined(__i386__)
802    constexpr const char* instruction_set = "x86";
803#elif defined(__x86_64__)
804    constexpr const char* instruction_set = "x86_64";
805#else
806    constexpr const char* instruction_set = "unknown";
807#endif
808    // Note: it is OK to reuse the buffer, as the values are exactly the same between
809    //       * compiler-option, used for runtime compilation (DexClassLoader)
810    //       * image-compiler-option, used for boot-image compilation on device
811
812    // Copy the variant.
813    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
814    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
815                        "--instruction-set-variant=", "-Ximage-compiler-option");
816    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
817                        "--instruction-set-variant=", "-Xcompiler-option");
818    // Copy the features.
819    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
820    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
821                        "--instruction-set-features=", "-Ximage-compiler-option");
822    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
823                        "--instruction-set-features=", "-Xcompiler-option");
824
825
826    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
827    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
828
829    /* extra options; parse this late so it overrides others */
830    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
831    parseExtraOpts(extraOptsBuf, NULL);
832
833    /* Set the properties for locale */
834    {
835        strcpy(localeOption, "-Duser.locale=");
836        const std::string locale = readLocale();
837        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
838        addOption(localeOption);
839    }
840
841    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
842    property_get("ro.debuggable", propBuf, "0");
843    if (strcmp(propBuf, "1") == 0) {
844        property_get("dalvik.vm.method-trace", propBuf, "false");
845        if (strcmp(propBuf, "true") == 0) {
846            addOption("-Xmethod-trace");
847            parseRuntimeOption("dalvik.vm.method-trace-file",
848                               methodTraceFileBuf,
849                               "-Xmethod-trace-file:");
850            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
851                               methodTraceFileSizeBuf,
852                               "-Xmethod-trace-file-size:");
853            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
854            if (strcmp(propBuf, "true") == 0) {
855                addOption("-Xmethod-trace-stream");
856            }
857        }
858    }
859
860    // Native bridge library. "0" means that native bridge is disabled.
861    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
862    if (propBuf[0] == '\0') {
863        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
864    } else if (strcmp(propBuf, "0") != 0) {
865        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
866                 "-XX:NativeBridge=%s", propBuf);
867        addOption(nativeBridgeLibrary);
868    }
869
870#if defined(__LP64__)
871    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
872#else
873    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
874#endif  // defined(__LP64__)
875    property_get(cpu_abilist_property_name, propBuf, "");
876    if (propBuf[0] == '\0') {
877        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
878        return -1;
879    }
880    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
881    addOption(cpuAbiListBuf);
882
883    // Dalvik-cache pruning counter.
884    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
885                       "-Xzygote-max-boot-retry=");
886
887    /*
888     * When running with debug.generate-debug-info, add --generate-debug-info to
889     * the compiler options so that the boot image, if it is compiled on device,
890     * will include native debugging information.
891     */
892    property_get("debug.generate-debug-info", propBuf, "");
893    if (strcmp(propBuf, "true") == 0) {
894        addOption("-Xcompiler-option");
895        addOption("--generate-debug-info");
896        addOption("-Ximage-compiler-option");
897        addOption("--generate-debug-info");
898    }
899
900    /*
901     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
902     * contain the fingerprint and can be parsed.
903     */
904    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
905
906    initArgs.version = JNI_VERSION_1_4;
907    initArgs.options = mOptions.editArray();
908    initArgs.nOptions = mOptions.size();
909    initArgs.ignoreUnrecognized = JNI_FALSE;
910
911    /*
912     * Initialize the VM.
913     *
914     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
915     * If this call succeeds, the VM is ready, and we can start issuing
916     * JNI calls.
917     */
918    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
919        ALOGE("JNI_CreateJavaVM failed\n");
920        return -1;
921    }
922
923    return 0;
924}
925
926char* AndroidRuntime::toSlashClassName(const char* className)
927{
928    char* result = strdup(className);
929    for (char* cp = result; *cp != '\0'; cp++) {
930        if (*cp == '.') {
931            *cp = '/';
932        }
933    }
934    return result;
935}
936
937/** Create a Java string from an ASCII or Latin-1 string */
938jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
939    if (!bytes) return NULL;
940    int length = strlen(bytes);
941    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
942    if (!buffer) return NULL;
943    jchar* chp = buffer;
944    for (int i = 0; i < length; i++) {
945        *chp++ = *bytes++;
946    }
947    return env->NewString(buffer, length);
948}
949
950
951/*
952 * Start the Android runtime.  This involves starting the virtual machine
953 * and calling the "static void main(String[] args)" method in the class
954 * named by "className".
955 *
956 * Passes the main function two arguments, the class name and the specified
957 * options string.
958 */
959void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
960{
961    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
962            className != NULL ? className : "(unknown)", getuid());
963
964    static const String8 startSystemServer("start-system-server");
965
966    /*
967     * 'startSystemServer == true' means runtime is obsolete and not run from
968     * init.rc anymore, so we print out the boot start event here.
969     */
970    for (size_t i = 0; i < options.size(); ++i) {
971        if (options[i] == startSystemServer) {
972           /* track our progress through the boot sequence */
973           const int LOG_BOOT_PROGRESS_START = 3000;
974           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
975        }
976    }
977
978    const char* rootDir = getenv("ANDROID_ROOT");
979    if (rootDir == NULL) {
980        rootDir = "/system";
981        if (!hasDir("/system")) {
982            LOG_FATAL("No root directory specified, and /android does not exist.");
983            return;
984        }
985        setenv("ANDROID_ROOT", rootDir, 1);
986    }
987
988    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
989    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
990
991    /* start the virtual machine */
992    JniInvocation jni_invocation;
993    jni_invocation.Init(NULL);
994    JNIEnv* env;
995    if (startVm(&mJavaVM, &env, zygote) != 0) {
996        return;
997    }
998    onVmCreated(env);
999
1000    /*
1001     * Register android functions.
1002     */
1003    if (startReg(env) < 0) {
1004        ALOGE("Unable to register all android natives\n");
1005        return;
1006    }
1007
1008    /*
1009     * We want to call main() with a String array with arguments in it.
1010     * At present we have two arguments, the class name and an option string.
1011     * Create an array to hold them.
1012     */
1013    jclass stringClass;
1014    jobjectArray strArray;
1015    jstring classNameStr;
1016
1017    stringClass = env->FindClass("java/lang/String");
1018    assert(stringClass != NULL);
1019    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1020    assert(strArray != NULL);
1021    classNameStr = env->NewStringUTF(className);
1022    assert(classNameStr != NULL);
1023    env->SetObjectArrayElement(strArray, 0, classNameStr);
1024
1025    for (size_t i = 0; i < options.size(); ++i) {
1026        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1027        assert(optionsStr != NULL);
1028        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1029    }
1030
1031    /*
1032     * Start VM.  This thread becomes the main thread of the VM, and will
1033     * not return until the VM exits.
1034     */
1035    char* slashClassName = toSlashClassName(className);
1036    jclass startClass = env->FindClass(slashClassName);
1037    if (startClass == NULL) {
1038        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1039        /* keep going */
1040    } else {
1041        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1042            "([Ljava/lang/String;)V");
1043        if (startMeth == NULL) {
1044            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1045            /* keep going */
1046        } else {
1047            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1048
1049#if 0
1050            if (env->ExceptionCheck())
1051                threadExitUncaughtException(env);
1052#endif
1053        }
1054    }
1055    free(slashClassName);
1056
1057    ALOGD("Shutting down VM\n");
1058    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1059        ALOGW("Warning: unable to detach main thread\n");
1060    if (mJavaVM->DestroyJavaVM() != 0)
1061        ALOGW("Warning: VM did not shut down cleanly\n");
1062}
1063
1064void AndroidRuntime::exit(int code)
1065{
1066    if (mExitWithoutCleanup) {
1067        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1068        ::_exit(code);
1069    } else {
1070        ALOGI("VM exiting with result code %d.", code);
1071        onExit(code);
1072        ::exit(code);
1073    }
1074}
1075
1076void AndroidRuntime::onVmCreated(JNIEnv* env)
1077{
1078    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1079}
1080
1081/*
1082 * Get the JNIEnv pointer for this thread.
1083 *
1084 * Returns NULL if the slot wasn't allocated or populated.
1085 */
1086/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1087{
1088    JNIEnv* env;
1089    JavaVM* vm = AndroidRuntime::getJavaVM();
1090    assert(vm != NULL);
1091
1092    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1093        return NULL;
1094    return env;
1095}
1096
1097/*
1098 * Makes the current thread visible to the VM.
1099 *
1100 * The JNIEnv pointer returned is only valid for the current thread, and
1101 * thus must be tucked into thread-local storage.
1102 */
1103static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1104{
1105    JavaVMAttachArgs args;
1106    JavaVM* vm;
1107    jint result;
1108
1109    vm = AndroidRuntime::getJavaVM();
1110    assert(vm != NULL);
1111
1112    args.version = JNI_VERSION_1_4;
1113    args.name = (char*) threadName;
1114    args.group = NULL;
1115
1116    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1117    if (result != JNI_OK)
1118        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1119
1120    return result;
1121}
1122
1123/*
1124 * Detach the current thread from the set visible to the VM.
1125 */
1126static int javaDetachThread(void)
1127{
1128    JavaVM* vm;
1129    jint result;
1130
1131    vm = AndroidRuntime::getJavaVM();
1132    assert(vm != NULL);
1133
1134    result = vm->DetachCurrentThread();
1135    if (result != JNI_OK)
1136        ALOGE("ERROR: thread detach failed\n");
1137    return result;
1138}
1139
1140/*
1141 * When starting a native thread that will be visible from the VM, we
1142 * bounce through this to get the right attach/detach action.
1143 * Note that this function calls free(args)
1144 */
1145/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1146    void* start = ((void**)args)[0];
1147    void* userData = ((void **)args)[1];
1148    char* name = (char*) ((void **)args)[2];        // we own this storage
1149    free(args);
1150    JNIEnv* env;
1151    int result;
1152
1153    /* hook us into the VM */
1154    if (javaAttachThread(name, &env) != JNI_OK)
1155        return -1;
1156
1157    /* start the thread running */
1158    result = (*(android_thread_func_t)start)(userData);
1159
1160    /* unhook us */
1161    javaDetachThread();
1162    free(name);
1163
1164    return result;
1165}
1166
1167/*
1168 * This is invoked from androidCreateThreadEtc() via the callback
1169 * set with androidSetCreateThreadFunc().
1170 *
1171 * We need to create the new thread in such a way that it gets hooked
1172 * into the VM before it really starts executing.
1173 */
1174/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1175                                android_thread_func_t entryFunction,
1176                                void* userData,
1177                                const char* threadName,
1178                                int32_t threadPriority,
1179                                size_t threadStackSize,
1180                                android_thread_id_t* threadId)
1181{
1182    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1183    int result;
1184
1185    if (!threadName)
1186        threadName = "unnamed thread";
1187
1188    args[0] = (void*) entryFunction;
1189    args[1] = userData;
1190    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1191
1192    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1193        threadName, threadPriority, threadStackSize, threadId);
1194    return result;
1195}
1196
1197/*
1198 * Create a thread that is visible from the VM.
1199 *
1200 * This is called from elsewhere in the library.
1201 */
1202/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1203    void (*start)(void *), void* arg)
1204{
1205    android_thread_id_t threadId = 0;
1206    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1207        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1208    return threadId;
1209}
1210
1211#if 0
1212static void quickTest(void* arg)
1213{
1214    const char* str = (const char*) arg;
1215
1216    printf("In quickTest: %s\n", str);
1217}
1218#endif
1219
1220#ifdef NDEBUG
1221    #define REG_JNI(name)      { name }
1222    struct RegJNIRec {
1223        int (*mProc)(JNIEnv*);
1224    };
1225#else
1226    #define REG_JNI(name)      { name, #name }
1227    struct RegJNIRec {
1228        int (*mProc)(JNIEnv*);
1229        const char* mName;
1230    };
1231#endif
1232
1233typedef void (*RegJAMProc)();
1234
1235static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1236{
1237    for (size_t i = 0; i < count; i++) {
1238        if (array[i].mProc(env) < 0) {
1239#ifndef NDEBUG
1240            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1241#endif
1242            return -1;
1243        }
1244    }
1245    return 0;
1246}
1247
1248static const RegJNIRec gRegJNI[] = {
1249    REG_JNI(register_com_android_internal_os_RuntimeInit),
1250    REG_JNI(register_android_os_SystemClock),
1251    REG_JNI(register_android_util_EventLog),
1252    REG_JNI(register_android_util_Log),
1253    REG_JNI(register_android_util_PathParser),
1254    REG_JNI(register_android_auditing_SecurityLog),
1255    REG_JNI(register_android_content_AssetManager),
1256    REG_JNI(register_android_content_StringBlock),
1257    REG_JNI(register_android_content_XmlBlock),
1258    REG_JNI(register_android_text_AndroidCharacter),
1259    REG_JNI(register_android_text_StaticLayout),
1260    REG_JNI(register_android_text_AndroidBidi),
1261    REG_JNI(register_android_view_InputDevice),
1262    REG_JNI(register_android_view_KeyCharacterMap),
1263    REG_JNI(register_android_os_Process),
1264    REG_JNI(register_android_os_SystemProperties),
1265    REG_JNI(register_android_os_Binder),
1266    REG_JNI(register_android_os_Parcel),
1267    REG_JNI(register_android_nio_utils),
1268    REG_JNI(register_android_graphics_Canvas),
1269    REG_JNI(register_android_graphics_Graphics),
1270    REG_JNI(register_android_view_DisplayEventReceiver),
1271    REG_JNI(register_android_view_RenderNode),
1272    REG_JNI(register_android_view_RenderNodeAnimator),
1273    REG_JNI(register_android_view_GraphicBuffer),
1274    REG_JNI(register_android_view_DisplayListCanvas),
1275    REG_JNI(register_android_view_HardwareLayer),
1276    REG_JNI(register_android_view_ThreadedRenderer),
1277    REG_JNI(register_android_view_Surface),
1278    REG_JNI(register_android_view_SurfaceControl),
1279    REG_JNI(register_android_view_SurfaceSession),
1280    REG_JNI(register_android_view_TextureView),
1281    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1282    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1283    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1284    REG_JNI(register_android_opengl_jni_EGL14),
1285    REG_JNI(register_android_opengl_jni_EGLExt),
1286    REG_JNI(register_android_opengl_jni_GLES10),
1287    REG_JNI(register_android_opengl_jni_GLES10Ext),
1288    REG_JNI(register_android_opengl_jni_GLES11),
1289    REG_JNI(register_android_opengl_jni_GLES11Ext),
1290    REG_JNI(register_android_opengl_jni_GLES20),
1291    REG_JNI(register_android_opengl_jni_GLES30),
1292    REG_JNI(register_android_opengl_jni_GLES31),
1293    REG_JNI(register_android_opengl_jni_GLES31Ext),
1294    REG_JNI(register_android_opengl_jni_GLES32),
1295
1296    REG_JNI(register_android_graphics_Bitmap),
1297    REG_JNI(register_android_graphics_BitmapFactory),
1298    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1299    REG_JNI(register_android_graphics_Camera),
1300    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1301    REG_JNI(register_android_graphics_CanvasProperty),
1302    REG_JNI(register_android_graphics_ColorFilter),
1303    REG_JNI(register_android_graphics_DrawFilter),
1304    REG_JNI(register_android_graphics_FontFamily),
1305    REG_JNI(register_android_graphics_Interpolator),
1306    REG_JNI(register_android_graphics_LayerRasterizer),
1307    REG_JNI(register_android_graphics_MaskFilter),
1308    REG_JNI(register_android_graphics_Matrix),
1309    REG_JNI(register_android_graphics_Movie),
1310    REG_JNI(register_android_graphics_NinePatch),
1311    REG_JNI(register_android_graphics_Paint),
1312    REG_JNI(register_android_graphics_Path),
1313    REG_JNI(register_android_graphics_PathMeasure),
1314    REG_JNI(register_android_graphics_PathEffect),
1315    REG_JNI(register_android_graphics_Picture),
1316    REG_JNI(register_android_graphics_PorterDuff),
1317    REG_JNI(register_android_graphics_Rasterizer),
1318    REG_JNI(register_android_graphics_Region),
1319    REG_JNI(register_android_graphics_Shader),
1320    REG_JNI(register_android_graphics_SurfaceTexture),
1321    REG_JNI(register_android_graphics_Typeface),
1322    REG_JNI(register_android_graphics_Xfermode),
1323    REG_JNI(register_android_graphics_YuvImage),
1324    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1325    REG_JNI(register_android_graphics_pdf_PdfDocument),
1326    REG_JNI(register_android_graphics_pdf_PdfEditor),
1327    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1328
1329    REG_JNI(register_android_database_CursorWindow),
1330    REG_JNI(register_android_database_SQLiteConnection),
1331    REG_JNI(register_android_database_SQLiteGlobal),
1332    REG_JNI(register_android_database_SQLiteDebug),
1333    REG_JNI(register_android_os_Debug),
1334    REG_JNI(register_android_os_FileObserver),
1335    REG_JNI(register_android_os_MessageQueue),
1336    REG_JNI(register_android_os_SELinux),
1337    REG_JNI(register_android_os_Trace),
1338    REG_JNI(register_android_os_UEventObserver),
1339    REG_JNI(register_android_net_LocalSocketImpl),
1340    REG_JNI(register_android_net_NetworkUtils),
1341    REG_JNI(register_android_net_TrafficStats),
1342    REG_JNI(register_android_os_MemoryFile),
1343    REG_JNI(register_com_android_internal_os_Zygote),
1344    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1345    REG_JNI(register_android_hardware_Camera),
1346    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1347    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1348    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1349    REG_JNI(register_android_hardware_camera2_DngCreator),
1350    REG_JNI(register_android_hardware_Radio),
1351    REG_JNI(register_android_hardware_SensorManager),
1352    REG_JNI(register_android_hardware_SerialPort),
1353    REG_JNI(register_android_hardware_SoundTrigger),
1354    REG_JNI(register_android_hardware_UsbDevice),
1355    REG_JNI(register_android_hardware_UsbDeviceConnection),
1356    REG_JNI(register_android_hardware_UsbRequest),
1357    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1358    REG_JNI(register_android_media_AudioRecord),
1359    REG_JNI(register_android_media_AudioSystem),
1360    REG_JNI(register_android_media_AudioTrack),
1361    REG_JNI(register_android_media_JetPlayer),
1362    REG_JNI(register_android_media_RemoteDisplay),
1363    REG_JNI(register_android_media_ToneGenerator),
1364
1365    REG_JNI(register_android_opengl_classes),
1366    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1367    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1368    REG_JNI(register_android_backup_BackupDataInput),
1369    REG_JNI(register_android_backup_BackupDataOutput),
1370    REG_JNI(register_android_backup_FileBackupHelperBase),
1371    REG_JNI(register_android_backup_BackupHelperDispatcher),
1372    REG_JNI(register_android_app_backup_FullBackup),
1373    REG_JNI(register_android_app_ActivityThread),
1374    REG_JNI(register_android_app_NativeActivity),
1375    REG_JNI(register_android_util_jar_StrictJarFile),
1376    REG_JNI(register_android_view_InputChannel),
1377    REG_JNI(register_android_view_InputEventReceiver),
1378    REG_JNI(register_android_view_InputEventSender),
1379    REG_JNI(register_android_view_InputQueue),
1380    REG_JNI(register_android_view_KeyEvent),
1381    REG_JNI(register_android_view_MotionEvent),
1382    REG_JNI(register_android_view_PointerIcon),
1383    REG_JNI(register_android_view_VelocityTracker),
1384
1385    REG_JNI(register_android_content_res_ObbScanner),
1386    REG_JNI(register_android_content_res_Configuration),
1387
1388    REG_JNI(register_android_animation_PropertyValuesHolder),
1389    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1390    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1391    REG_JNI(register_android_os_HardwarePropertiesManager),
1392
1393};
1394
1395/*
1396 * Register android native functions with the VM.
1397 */
1398/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1399{
1400    ATRACE_NAME("RegisterAndroidNatives");
1401    /*
1402     * This hook causes all future threads created in this process to be
1403     * attached to the JavaVM.  (This needs to go away in favor of JNI
1404     * Attach calls.)
1405     */
1406    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1407
1408    ALOGV("--- registering native functions ---\n");
1409
1410    /*
1411     * Every "register" function calls one or more things that return
1412     * a local reference (e.g. FindClass).  Because we haven't really
1413     * started the VM yet, they're all getting stored in the base frame
1414     * and never released.  Use Push/Pop to manage the storage.
1415     */
1416    env->PushLocalFrame(200);
1417
1418    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1419        env->PopLocalFrame(NULL);
1420        return -1;
1421    }
1422    env->PopLocalFrame(NULL);
1423
1424    //createJavaThread("fubar", quickTest, (void*) "hello");
1425
1426    return 0;
1427}
1428
1429AndroidRuntime* AndroidRuntime::getRuntime()
1430{
1431    return gCurRuntime;
1432}
1433
1434/**
1435 * Used by surface flinger's DdmConnection to register native methods from
1436 * the framework.
1437 */
1438extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1439    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1440}
1441}   // namespace android
1442