AndroidRuntime.cpp revision 8d40c367b05f485cbf3492e8add7c00deba6809b 
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);
83
84extern int register_android_hardware_Camera(JNIEnv *env);
85extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
86extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env);
87extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env);
88extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
89extern int register_android_hardware_Radio(JNIEnv *env);
90extern int register_android_hardware_SensorManager(JNIEnv *env);
91extern int register_android_hardware_SerialPort(JNIEnv *env);
92extern int register_android_hardware_SoundTrigger(JNIEnv *env);
93extern int register_android_hardware_UsbDevice(JNIEnv *env);
94extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
95extern int register_android_hardware_UsbRequest(JNIEnv *env);
96extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
97
98extern int register_android_media_AudioRecord(JNIEnv *env);
99extern int register_android_media_AudioSystem(JNIEnv *env);
100extern int register_android_media_AudioTrack(JNIEnv *env);
101extern int register_android_media_JetPlayer(JNIEnv *env);
102extern int register_android_media_ToneGenerator(JNIEnv *env);
103
104namespace android {
105
106/*
107 * JNI-based registration functions.  Note these are properly contained in
108 * namespace android.
109 */
110extern int register_android_content_AssetManager(JNIEnv* env);
111extern int register_android_util_EventLog(JNIEnv* env);
112extern int register_android_util_Log(JNIEnv* env);
113extern int register_android_util_PathParser(JNIEnv* env);
114extern int register_android_content_StringBlock(JNIEnv* env);
115extern int register_android_content_XmlBlock(JNIEnv* env);
116extern int register_android_graphics_Canvas(JNIEnv* env);
117extern int register_android_graphics_CanvasProperty(JNIEnv* env);
118extern int register_android_graphics_ColorFilter(JNIEnv* env);
119extern int register_android_graphics_DrawFilter(JNIEnv* env);
120extern int register_android_graphics_FontFamily(JNIEnv* env);
121extern int register_android_graphics_LayerRasterizer(JNIEnv*);
122extern int register_android_graphics_Matrix(JNIEnv* env);
123extern int register_android_graphics_Paint(JNIEnv* env);
124extern int register_android_graphics_Path(JNIEnv* env);
125extern int register_android_graphics_PathMeasure(JNIEnv* env);
126extern int register_android_graphics_Picture(JNIEnv*);
127extern int register_android_graphics_PorterDuff(JNIEnv* env);
128extern int register_android_graphics_Rasterizer(JNIEnv* env);
129extern int register_android_graphics_Region(JNIEnv* env);
130extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
131extern int register_android_graphics_Xfermode(JNIEnv* env);
132extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
133extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
134extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
135extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
136extern int register_android_view_DisplayListCanvas(JNIEnv* env);
137extern int register_android_view_GraphicBuffer(JNIEnv* env);
138extern int register_android_view_HardwareLayer(JNIEnv* env);
139extern int register_android_view_RenderNode(JNIEnv* env);
140extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
141extern int register_android_view_Surface(JNIEnv* env);
142extern int register_android_view_SurfaceControl(JNIEnv* env);
143extern int register_android_view_SurfaceSession(JNIEnv* env);
144extern int register_android_view_TextureView(JNIEnv* env);
145extern int register_android_view_ThreadedRenderer(JNIEnv* env);
146extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
147extern int register_android_database_CursorWindow(JNIEnv* env);
148extern int register_android_database_SQLiteConnection(JNIEnv* env);
149extern int register_android_database_SQLiteGlobal(JNIEnv* env);
150extern int register_android_database_SQLiteDebug(JNIEnv* env);
151extern int register_android_nio_utils(JNIEnv* env);
152extern int register_android_os_Debug(JNIEnv* env);
153extern int register_android_os_MessageQueue(JNIEnv* env);
154extern int register_android_os_Parcel(JNIEnv* env);
155extern int register_android_os_SELinux(JNIEnv* env);
156extern int register_android_os_SystemProperties(JNIEnv *env);
157extern int register_android_os_SystemClock(JNIEnv* env);
158extern int register_android_os_Trace(JNIEnv* env);
159extern int register_android_os_FileObserver(JNIEnv *env);
160extern int register_android_os_UEventObserver(JNIEnv* env);
161extern int register_android_os_MemoryFile(JNIEnv* env);
162extern int register_android_net_LocalSocketImpl(JNIEnv* env);
163extern int register_android_net_NetworkUtils(JNIEnv* env);
164extern int register_android_net_TrafficStats(JNIEnv* env);
165extern int register_android_text_AndroidCharacter(JNIEnv *env);
166extern int register_android_text_StaticLayout(JNIEnv *env);
167extern int register_android_text_AndroidBidi(JNIEnv *env);
168extern int register_android_opengl_classes(JNIEnv *env);
169extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
170extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
171extern int register_android_backup_BackupDataInput(JNIEnv *env);
172extern int register_android_backup_BackupDataOutput(JNIEnv *env);
173extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
174extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
175extern int register_android_app_backup_FullBackup(JNIEnv *env);
176extern int register_android_app_ActivityThread(JNIEnv *env);
177extern int register_android_app_NativeActivity(JNIEnv *env);
178extern int register_android_media_RemoteDisplay(JNIEnv *env);
179extern int register_android_view_InputChannel(JNIEnv* env);
180extern int register_android_view_InputDevice(JNIEnv* env);
181extern int register_android_view_InputEventReceiver(JNIEnv* env);
182extern int register_android_view_InputEventSender(JNIEnv* env);
183extern int register_android_view_InputQueue(JNIEnv* env);
184extern int register_android_view_KeyCharacterMap(JNIEnv *env);
185extern int register_android_view_KeyEvent(JNIEnv* env);
186extern int register_android_view_MotionEvent(JNIEnv* env);
187extern int register_android_view_PointerIcon(JNIEnv* env);
188extern int register_android_view_VelocityTracker(JNIEnv* env);
189extern int register_android_content_res_ObbScanner(JNIEnv* env);
190extern int register_android_content_res_Configuration(JNIEnv* env);
191extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
192extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
193extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
194extern int register_com_android_internal_os_Zygote(JNIEnv *env);
195extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
196
197static AndroidRuntime* gCurRuntime = NULL;
198
199/*
200 * Code written in the Java Programming Language calls here from main().
201 */
202static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
203{
204    gCurRuntime->onStarted();
205}
206
207static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
208{
209    gCurRuntime->onZygoteInit();
210}
211
212static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
213        jobject clazz, jboolean exitWithoutCleanup)
214{
215    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
216}
217
218/*
219 * JNI registration.
220 */
221static const JNINativeMethod gMethods[] = {
222    { "nativeFinishInit", "()V",
223        (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
224    { "nativeZygoteInit", "()V",
225        (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit },
226    { "nativeSetExitWithoutCleanup", "(Z)V",
227        (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
228};
229
230int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
231{
232    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
233        gMethods, NELEM(gMethods));
234}
235
236// ----------------------------------------------------------------------
237
238/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
239
240AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
241        mExitWithoutCleanup(false),
242        mArgBlockStart(argBlockStart),
243        mArgBlockLength(argBlockLength)
244{
245    SkGraphics::Init();
246    // There is also a global font cache, but its budget is specified by
247    // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT.
248
249    // Pre-allocate enough space to hold a fair number of options.
250    mOptions.setCapacity(20);
251
252    assert(gCurRuntime == NULL);        // one per process
253    gCurRuntime = this;
254}
255
256AndroidRuntime::~AndroidRuntime()
257{
258    SkGraphics::Term();
259}
260
261/*
262 * Register native methods using JNI.
263 */
264/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
265    const char* className, const JNINativeMethod* gMethods, int numMethods)
266{
267    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
268}
269
270void AndroidRuntime::setArgv0(const char* argv0) {
271    memset(mArgBlockStart, 0, mArgBlockLength);
272    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
273}
274
275status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
276    const Vector<String8>& args)
277{
278    JNIEnv* env;
279    jmethodID methodId;
280
281    ALOGD("Calling main entry %s", className.string());
282
283    env = getJNIEnv();
284    if (clazz == NULL || env == NULL) {
285        return UNKNOWN_ERROR;
286    }
287
288    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
289    if (methodId == NULL) {
290        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
291        return UNKNOWN_ERROR;
292    }
293
294    /*
295     * We want to call main() with a String array with our arguments in it.
296     * Create an array and populate it.
297     */
298    jclass stringClass;
299    jobjectArray strArray;
300
301    const size_t numArgs = args.size();
302    stringClass = env->FindClass("java/lang/String");
303    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
304
305    for (size_t i = 0; i < numArgs; i++) {
306        jstring argStr = env->NewStringUTF(args[i].string());
307        env->SetObjectArrayElement(strArray, i, argStr);
308    }
309
310    env->CallStaticVoidMethod(clazz, methodId, strArray);
311    return NO_ERROR;
312}
313
314/*
315 * The VM calls this through the "exit" hook.
316 */
317static void runtime_exit(int code)
318{
319    gCurRuntime->exit(code);
320}
321
322/*
323 * The VM calls this through the "vfprintf" hook.
324 *
325 * We ignore "fp" and just write the results to the log file.
326 */
327static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
328{
329    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
330}
331
332/**
333 * The VM calls this when mutex contention debugging is enabled to
334 * determine whether or not the blocked thread was a "sensitive thread"
335 * for user responsiveness/smoothess.
336 *
337 * Our policy for this is whether or not we're tracing any StrictMode
338 * events on this thread (which we might've inherited via Binder calls
339 * into us)
340 */
341static bool runtime_isSensitiveThread() {
342    IPCThreadState* state = IPCThreadState::selfOrNull();
343    return state && state->getStrictModePolicy() != 0;
344}
345
346static int hasDir(const char* dir)
347{
348    struct stat s;
349    int res = stat(dir, &s);
350    if (res == 0) {
351        return S_ISDIR(s.st_mode);
352    }
353    return 0;
354}
355
356static bool hasFile(const char* file) {
357    struct stat s;
358    int res = stat(file, &s);
359    if (res == 0) {
360        return S_ISREG(s.st_mode);
361    }
362    return false;
363}
364
365// Convenience wrapper over the property API that returns an
366// std::string.
367std::string getProperty(const char* key, const char* defaultValue) {
368    std::vector<char> temp(PROPERTY_VALUE_MAX);
369    const int len = property_get(key, &temp[0], defaultValue);
370    if (len < 0) {
371        return "";
372    }
373    return std::string(&temp[0], len);
374}
375
376/*
377 * Read the persistent locale. Inspects the following system properties
378 * (in order) and returns the first non-empty property in the list :
379 *
380 * (1) persist.sys.locale
381 * (2) persist.sys.language/country/localevar (country and localevar are
382 * inspected iff. language is non-empty.
383 * (3) ro.product.locale
384 * (4) ro.product.locale.language/region
385 *
386 * Note that we need to inspect persist.sys.language/country/localevar to
387 * preserve language settings for devices that are upgrading from Lollipop
388 * to M. The same goes for ro.product.locale.language/region as well.
389 */
390const std::string readLocale()
391{
392    const std::string locale = getProperty("persist.sys.locale", "");
393    if (!locale.empty()) {
394        return locale;
395    }
396
397    const std::string language = getProperty("persist.sys.language", "");
398    if (!language.empty()) {
399        const std::string country = getProperty("persist.sys.country", "");
400        const std::string variant = getProperty("persist.sys.localevar", "");
401
402        std::string out = language;
403        if (!country.empty()) {
404            out = out + "-" + country;
405        }
406
407        if (!variant.empty()) {
408            out = out + "-" + variant;
409        }
410
411        return out;
412    }
413
414    const std::string productLocale = getProperty("ro.product.locale", "");
415    if (!productLocale.empty()) {
416        return productLocale;
417    }
418
419    // If persist.sys.locale and ro.product.locale are missing,
420    // construct a locale value from the individual locale components.
421    const std::string productLanguage = getProperty("ro.product.locale.language", "en");
422    const std::string productRegion = getProperty("ro.product.locale.region", "US");
423
424    return productLanguage + "-" + productRegion;
425}
426
427void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
428{
429    JavaVMOption opt;
430    opt.optionString = optionString;
431    opt.extraInfo = extraInfo;
432    mOptions.add(opt);
433}
434
435/*
436 * Parse a property containing space-separated options that should be
437 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
438 *
439 * This will cut up "extraOptsBuf" as we chop it into individual options.
440 *
441 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
442 *
443 * Adds the strings, if any, to mOptions.
444 */
445void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
446{
447    char* start = extraOptsBuf;
448    char* end = NULL;
449    while (*start != '\0') {
450        while (*start == ' ')                   /* skip leading whitespace */
451            start++;
452        if (*start == '\0')                     /* was trailing ws, bail */
453            break;
454
455        end = start+1;
456        while (*end != ' ' && *end != '\0')     /* find end of token */
457            end++;
458        if (*end == ' ')
459            *end++ = '\0';          /* mark end, advance to indicate more */
460
461        if (quotingArg != NULL) {
462            addOption(quotingArg);
463        }
464        addOption(start);
465        start = end;
466    }
467}
468
469/*
470 * Reads a "property" into "buffer" with a default of "defaultArg". If
471 * the property is non-empty, it is treated as a runtime option such
472 * as "-Xmx32m".
473 *
474 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
475 *
476 * If an argument is found, it is added to mOptions.
477 *
478 * If an option is found, it is added to mOptions and true is
479 * returned. Otherwise false is returned.
480 */
481bool AndroidRuntime::parseRuntimeOption(const char* property,
482                                        char* buffer,
483                                        const char* runtimeArg,
484                                        const char* defaultArg)
485{
486    strcpy(buffer, runtimeArg);
487    size_t runtimeArgLen = strlen(runtimeArg);
488    property_get(property, buffer+runtimeArgLen, defaultArg);
489    if (buffer[runtimeArgLen] == '\0') {
490        return false;
491    }
492    addOption(buffer);
493    return true;
494}
495
496/*
497 * Reads a "property" into "buffer". If the property is non-empty, it
498 * is treated as a dex2oat compiler option that should be
499 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
500 *
501 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
502 *
503 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
504 *
505 * If an option is found, it is added to mOptions and true is
506 * returned. Otherwise false is returned.
507 */
508bool AndroidRuntime::parseCompilerOption(const char* property,
509                                         char* buffer,
510                                         const char* compilerArg,
511                                         const char* quotingArg)
512{
513    strcpy(buffer, compilerArg);
514    size_t compilerArgLen = strlen(compilerArg);
515    property_get(property, buffer+compilerArgLen, "");
516    if (buffer[compilerArgLen] == '\0') {
517        return false;
518    }
519    addOption(quotingArg);
520    addOption(buffer);
521    return true;
522}
523
524/*
525 * Reads a "property" into "buffer". If the property is non-empty, it
526 * is treated as a dex2oat compiler runtime option that should be
527 * passed as a quoted option, e.g. "-Ximage-compiler-option
528 * --runtime-arg -Ximage-compiler-option -Xmx32m".
529 *
530 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
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::parseCompilerRuntimeOption(const char* property,
538                                                char* buffer,
539                                                const char* runtimeArg,
540                                                const char* quotingArg)
541{
542    strcpy(buffer, runtimeArg);
543    size_t runtimeArgLen = strlen(runtimeArg);
544    property_get(property, buffer+runtimeArgLen, "");
545    if (buffer[runtimeArgLen] == '\0') {
546        return false;
547    }
548    addOption(quotingArg);
549    addOption("--runtime-arg");
550    addOption(quotingArg);
551    addOption(buffer);
552    return true;
553}
554
555/*
556 * Start the Dalvik Virtual Machine.
557 *
558 * Various arguments, most determined by system properties, are passed in.
559 * The "mOptions" vector is updated.
560 *
561 * CAUTION: when adding options in here, be careful not to put the
562 * char buffer inside a nested scope.  Adding the buffer to the
563 * options using mOptions.add() does not copy the buffer, so if the
564 * buffer goes out of scope the option may be overwritten.  It's best
565 * to put the buffer at the top of the function so that it is more
566 * unlikely that someone will surround it in a scope at a later time
567 * and thus introduce a bug.
568 *
569 * Returns 0 on success.
570 */
571int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
572{
573    JavaVMInitArgs initArgs;
574    char propBuf[PROPERTY_VALUE_MAX];
575    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
576    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
577    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
578    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
579    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
580    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
581    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
582    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
583    char jitcodecachesizeOptsBuf[sizeof("-Xjitcodecachesize:")-1 + PROPERTY_VALUE_MAX];
584    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
585    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
586    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
587    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
588    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
589    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
590    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
591    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
592    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
593    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
594    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
595    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
596    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
597    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
598    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
599    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
600    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
601    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
602    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
603    char extraOptsBuf[PROPERTY_VALUE_MAX];
604    char voldDecryptBuf[PROPERTY_VALUE_MAX];
605    enum {
606      kEMDefault,
607      kEMIntPortable,
608      kEMIntFast,
609      kEMJitCompiler,
610    } executionMode = kEMDefault;
611    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
612    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
613    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
614    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
615    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
616    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
617    char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX];
618
619    bool checkJni = false;
620    property_get("dalvik.vm.checkjni", propBuf, "");
621    if (strcmp(propBuf, "true") == 0) {
622        checkJni = true;
623    } else if (strcmp(propBuf, "false") != 0) {
624        /* property is neither true nor false; fall back on kernel parameter */
625        property_get("ro.kernel.android.checkjni", propBuf, "");
626        if (propBuf[0] == '1') {
627            checkJni = true;
628        }
629    }
630    ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
631    if (checkJni) {
632        /* extended JNI checking */
633        addOption("-Xcheck:jni");
634
635        /* with -Xcheck:jni, this provides a JNI function call trace */
636        //addOption("-verbose:jni");
637    }
638
639    property_get("dalvik.vm.execution-mode", propBuf, "");
640    if (strcmp(propBuf, "int:portable") == 0) {
641        executionMode = kEMIntPortable;
642    } else if (strcmp(propBuf, "int:fast") == 0) {
643        executionMode = kEMIntFast;
644    } else if (strcmp(propBuf, "int:jit") == 0) {
645        executionMode = kEMJitCompiler;
646    }
647
648    parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
649
650    strcpy(jniOptsBuf, "-Xjniopts:");
651    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
652        ALOGI("JNI options: '%s'\n", jniOptsBuf);
653    }
654
655    /* route exit() to our handler */
656    addOption("exit", (void*) runtime_exit);
657
658    /* route fprintf() to our handler */
659    addOption("vfprintf", (void*) runtime_vfprintf);
660
661    /* register the framework-specific "is sensitive thread" hook */
662    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
663
664    /* enable verbose; standard options are { jni, gc, class } */
665    //addOption("-verbose:jni");
666    addOption("-verbose:gc");
667    //addOption("-verbose:class");
668
669    /*
670     * The default starting and maximum size of the heap.  Larger
671     * values should be specified in a product property override.
672     */
673    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
674    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
675
676    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
677    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
678    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
679    parseRuntimeOption("dalvik.vm.heaptargetutilization",
680                       heaptargetutilizationOptsBuf,
681                       "-XX:HeapTargetUtilization=");
682
683    /*
684     * JIT related options.
685     */
686    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
687    parseRuntimeOption("dalvik.vm.jitcodecachesize", jitcodecachesizeOptsBuf, "-Xjitcodecachesize:");
688    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
689
690    property_get("ro.config.low_ram", propBuf, "");
691    if (strcmp(propBuf, "true") == 0) {
692      addOption("-XX:LowMemoryMode");
693    }
694
695    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
696    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
697
698    /*
699     * Enable debugging only for apps forked from zygote.
700     * Set suspend=y to pause during VM init and use android ADB transport.
701     */
702    if (zygote) {
703      addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
704    }
705
706    parseRuntimeOption("dalvik.vm.lockprof.threshold",
707                       lockProfThresholdBuf,
708                       "-Xlockprofthreshold:");
709
710    if (executionMode == kEMIntPortable) {
711        addOption("-Xint:portable");
712    } else if (executionMode == kEMIntFast) {
713        addOption("-Xint:fast");
714    } else if (executionMode == kEMJitCompiler) {
715        addOption("-Xint:jit");
716    }
717
718    // If we are booting without the real /data, don't spend time compiling.
719    property_get("vold.decrypt", voldDecryptBuf, "");
720    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
721                             (strcmp(voldDecryptBuf, "1") == 0));
722
723    // Extra options for boot.art/boot.oat image generation.
724    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
725                               "-Xms", "-Ximage-compiler-option");
726    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
727                               "-Xmx", "-Ximage-compiler-option");
728    if (skip_compilation) {
729        addOption("-Ximage-compiler-option");
730        addOption("--compiler-filter=verify-none");
731    } else {
732        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
733                            "--compiler-filter=", "-Ximage-compiler-option");
734    }
735
736    // Make sure there is a preloaded-classes file.
737    if (!hasFile("/system/etc/preloaded-classes")) {
738        ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
739              strerror(errno));
740        return -1;
741    }
742    addOption("-Ximage-compiler-option");
743    addOption("--image-classes=/system/etc/preloaded-classes");
744
745    // If there is a compiled-classes file, push it.
746    if (hasFile("/system/etc/compiled-classes")) {
747        addOption("-Ximage-compiler-option");
748        addOption("--compiled-classes=/system/etc/compiled-classes");
749    }
750
751    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
752    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
753
754    // Extra options for DexClassLoader.
755    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
756                               "-Xms", "-Xcompiler-option");
757    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
758                               "-Xmx", "-Xcompiler-option");
759    if (skip_compilation) {
760        addOption("-Xcompiler-option");
761        addOption("--compiler-filter=verify-none");
762
763        // We skip compilation when a minimal runtime is brought up for decryption. In that case
764        // /data is temporarily backed by a tmpfs, which is usually small.
765        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
766        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
767        // directly instead.
768        addOption("--runtime-arg");
769        addOption("-Xnorelocate");
770    } else {
771        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
772                            "--compiler-filter=", "-Xcompiler-option");
773    }
774    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
775    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
776                        "-Ximage-compiler-option");
777
778    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
779    // pass the instruction-set-features/variant as an image-compiler-option.
780    // TODO: Find a better way for the instruction-set.
781#if defined(__arm__)
782    constexpr const char* instruction_set = "arm";
783#elif defined(__aarch64__)
784    constexpr const char* instruction_set = "arm64";
785#elif defined(__mips__) && !defined(__LP64__)
786    constexpr const char* instruction_set = "mips";
787#elif defined(__mips__) && defined(__LP64__)
788    constexpr const char* instruction_set = "mips64";
789#elif defined(__i386__)
790    constexpr const char* instruction_set = "x86";
791#elif defined(__x86_64__)
792    constexpr const char* instruction_set = "x86_64";
793#else
794    constexpr const char* instruction_set = "unknown";
795#endif
796    // Note: it is OK to reuse the buffer, as the values are exactly the same between
797    //       * compiler-option, used for runtime compilation (DexClassLoader)
798    //       * image-compiler-option, used for boot-image compilation on device
799
800    // Copy the variant.
801    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
802    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
803                        "--instruction-set-variant=", "-Ximage-compiler-option");
804    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
805                        "--instruction-set-variant=", "-Xcompiler-option");
806    // Copy the features.
807    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
808    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
809                        "--instruction-set-features=", "-Ximage-compiler-option");
810    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
811                        "--instruction-set-features=", "-Xcompiler-option");
812
813
814    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
815    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
816
817    /* extra options; parse this late so it overrides others */
818    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
819    parseExtraOpts(extraOptsBuf, NULL);
820
821    /* Set the properties for locale */
822    {
823        strcpy(localeOption, "-Duser.locale=");
824        const std::string locale = readLocale();
825        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
826        addOption(localeOption);
827    }
828
829    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
830    property_get("ro.debuggable", propBuf, "0");
831    if (strcmp(propBuf, "1") == 0) {
832        property_get("dalvik.vm.method-trace", propBuf, "false");
833        if (strcmp(propBuf, "true") == 0) {
834            addOption("-Xmethod-trace");
835            parseRuntimeOption("dalvik.vm.method-trace-file",
836                               methodTraceFileBuf,
837                               "-Xmethod-trace-file:");
838            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
839                               methodTraceFileSizeBuf,
840                               "-Xmethod-trace-file-size:");
841            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
842            if (strcmp(propBuf, "true") == 0) {
843                addOption("-Xmethod-trace-stream");
844            }
845        }
846    }
847
848    // Native bridge library. "0" means that native bridge is disabled.
849    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
850    if (propBuf[0] == '\0') {
851        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
852    } else if (strcmp(propBuf, "0") != 0) {
853        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
854                 "-XX:NativeBridge=%s", propBuf);
855        addOption(nativeBridgeLibrary);
856    }
857
858#if defined(__LP64__)
859    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
860#else
861    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
862#endif  // defined(__LP64__)
863    property_get(cpu_abilist_property_name, propBuf, "");
864    if (propBuf[0] == '\0') {
865        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
866        return -1;
867    }
868    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
869    addOption(cpuAbiListBuf);
870
871    // Dalvik-cache pruning counter.
872    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
873                       "-Xzygote-max-boot-retry=");
874
875    /*
876     * When running with debug.generate-debug-info, add --generate-debug-info to
877     * the compiler options so that the boot image, if it is compiled on device,
878     * will include native debugging information.
879     */
880    property_get("debug.generate-debug-info", propBuf, "");
881    if (strcmp(propBuf, "true") == 0) {
882        addOption("-Xcompiler-option");
883        addOption("--generate-debug-info");
884        addOption("-Ximage-compiler-option");
885        addOption("--generate-debug-info");
886    }
887
888    /*
889     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
890     * contain the fingerprint and can be parsed.
891     */
892    parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:");
893
894    initArgs.version = JNI_VERSION_1_4;
895    initArgs.options = mOptions.editArray();
896    initArgs.nOptions = mOptions.size();
897    initArgs.ignoreUnrecognized = JNI_FALSE;
898
899    /*
900     * Initialize the VM.
901     *
902     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
903     * If this call succeeds, the VM is ready, and we can start issuing
904     * JNI calls.
905     */
906    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
907        ALOGE("JNI_CreateJavaVM failed\n");
908        return -1;
909    }
910
911    return 0;
912}
913
914char* AndroidRuntime::toSlashClassName(const char* className)
915{
916    char* result = strdup(className);
917    for (char* cp = result; *cp != '\0'; cp++) {
918        if (*cp == '.') {
919            *cp = '/';
920        }
921    }
922    return result;
923}
924
925/** Create a Java string from an ASCII or Latin-1 string */
926jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
927    if (!bytes) return NULL;
928    int length = strlen(bytes);
929    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
930    if (!buffer) return NULL;
931    jchar* chp = buffer;
932    for (int i = 0; i < length; i++) {
933        *chp++ = *bytes++;
934    }
935    return env->NewString(buffer, length);
936}
937
938
939/*
940 * Start the Android runtime.  This involves starting the virtual machine
941 * and calling the "static void main(String[] args)" method in the class
942 * named by "className".
943 *
944 * Passes the main function two arguments, the class name and the specified
945 * options string.
946 */
947void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
948{
949    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
950            className != NULL ? className : "(unknown)", getuid());
951
952    static const String8 startSystemServer("start-system-server");
953
954    /*
955     * 'startSystemServer == true' means runtime is obsolete and not run from
956     * init.rc anymore, so we print out the boot start event here.
957     */
958    for (size_t i = 0; i < options.size(); ++i) {
959        if (options[i] == startSystemServer) {
960           /* track our progress through the boot sequence */
961           const int LOG_BOOT_PROGRESS_START = 3000;
962           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
963        }
964    }
965
966    const char* rootDir = getenv("ANDROID_ROOT");
967    if (rootDir == NULL) {
968        rootDir = "/system";
969        if (!hasDir("/system")) {
970            LOG_FATAL("No root directory specified, and /android does not exist.");
971            return;
972        }
973        setenv("ANDROID_ROOT", rootDir, 1);
974    }
975
976    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
977    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
978
979    /* start the virtual machine */
980    JniInvocation jni_invocation;
981    jni_invocation.Init(NULL);
982    JNIEnv* env;
983    if (startVm(&mJavaVM, &env, zygote) != 0) {
984        return;
985    }
986    onVmCreated(env);
987
988    /*
989     * Register android functions.
990     */
991    if (startReg(env) < 0) {
992        ALOGE("Unable to register all android natives\n");
993        return;
994    }
995
996    /*
997     * We want to call main() with a String array with arguments in it.
998     * At present we have two arguments, the class name and an option string.
999     * Create an array to hold them.
1000     */
1001    jclass stringClass;
1002    jobjectArray strArray;
1003    jstring classNameStr;
1004
1005    stringClass = env->FindClass("java/lang/String");
1006    assert(stringClass != NULL);
1007    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1008    assert(strArray != NULL);
1009    classNameStr = env->NewStringUTF(className);
1010    assert(classNameStr != NULL);
1011    env->SetObjectArrayElement(strArray, 0, classNameStr);
1012
1013    for (size_t i = 0; i < options.size(); ++i) {
1014        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1015        assert(optionsStr != NULL);
1016        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1017    }
1018
1019    /*
1020     * Start VM.  This thread becomes the main thread of the VM, and will
1021     * not return until the VM exits.
1022     */
1023    char* slashClassName = toSlashClassName(className);
1024    jclass startClass = env->FindClass(slashClassName);
1025    if (startClass == NULL) {
1026        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1027        /* keep going */
1028    } else {
1029        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1030            "([Ljava/lang/String;)V");
1031        if (startMeth == NULL) {
1032            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1033            /* keep going */
1034        } else {
1035            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1036
1037#if 0
1038            if (env->ExceptionCheck())
1039                threadExitUncaughtException(env);
1040#endif
1041        }
1042    }
1043    free(slashClassName);
1044
1045    ALOGD("Shutting down VM\n");
1046    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1047        ALOGW("Warning: unable to detach main thread\n");
1048    if (mJavaVM->DestroyJavaVM() != 0)
1049        ALOGW("Warning: VM did not shut down cleanly\n");
1050}
1051
1052void AndroidRuntime::exit(int code)
1053{
1054    if (mExitWithoutCleanup) {
1055        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1056        ::_exit(code);
1057    } else {
1058        ALOGI("VM exiting with result code %d.", code);
1059        onExit(code);
1060        ::exit(code);
1061    }
1062}
1063
1064void AndroidRuntime::onVmCreated(JNIEnv* env)
1065{
1066    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1067}
1068
1069/*
1070 * Get the JNIEnv pointer for this thread.
1071 *
1072 * Returns NULL if the slot wasn't allocated or populated.
1073 */
1074/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1075{
1076    JNIEnv* env;
1077    JavaVM* vm = AndroidRuntime::getJavaVM();
1078    assert(vm != NULL);
1079
1080    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1081        return NULL;
1082    return env;
1083}
1084
1085/*
1086 * Makes the current thread visible to the VM.
1087 *
1088 * The JNIEnv pointer returned is only valid for the current thread, and
1089 * thus must be tucked into thread-local storage.
1090 */
1091static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1092{
1093    JavaVMAttachArgs args;
1094    JavaVM* vm;
1095    jint result;
1096
1097    vm = AndroidRuntime::getJavaVM();
1098    assert(vm != NULL);
1099
1100    args.version = JNI_VERSION_1_4;
1101    args.name = (char*) threadName;
1102    args.group = NULL;
1103
1104    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1105    if (result != JNI_OK)
1106        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1107
1108    return result;
1109}
1110
1111/*
1112 * Detach the current thread from the set visible to the VM.
1113 */
1114static int javaDetachThread(void)
1115{
1116    JavaVM* vm;
1117    jint result;
1118
1119    vm = AndroidRuntime::getJavaVM();
1120    assert(vm != NULL);
1121
1122    result = vm->DetachCurrentThread();
1123    if (result != JNI_OK)
1124        ALOGE("ERROR: thread detach failed\n");
1125    return result;
1126}
1127
1128/*
1129 * When starting a native thread that will be visible from the VM, we
1130 * bounce through this to get the right attach/detach action.
1131 * Note that this function calls free(args)
1132 */
1133/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1134    void* start = ((void**)args)[0];
1135    void* userData = ((void **)args)[1];
1136    char* name = (char*) ((void **)args)[2];        // we own this storage
1137    free(args);
1138    JNIEnv* env;
1139    int result;
1140
1141    /* hook us into the VM */
1142    if (javaAttachThread(name, &env) != JNI_OK)
1143        return -1;
1144
1145    /* start the thread running */
1146    result = (*(android_thread_func_t)start)(userData);
1147
1148    /* unhook us */
1149    javaDetachThread();
1150    free(name);
1151
1152    return result;
1153}
1154
1155/*
1156 * This is invoked from androidCreateThreadEtc() via the callback
1157 * set with androidSetCreateThreadFunc().
1158 *
1159 * We need to create the new thread in such a way that it gets hooked
1160 * into the VM before it really starts executing.
1161 */
1162/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1163                                android_thread_func_t entryFunction,
1164                                void* userData,
1165                                const char* threadName,
1166                                int32_t threadPriority,
1167                                size_t threadStackSize,
1168                                android_thread_id_t* threadId)
1169{
1170    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1171    int result;
1172
1173    if (!threadName)
1174        threadName = "unnamed thread";
1175
1176    args[0] = (void*) entryFunction;
1177    args[1] = userData;
1178    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1179
1180    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1181        threadName, threadPriority, threadStackSize, threadId);
1182    return result;
1183}
1184
1185/*
1186 * Create a thread that is visible from the VM.
1187 *
1188 * This is called from elsewhere in the library.
1189 */
1190/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1191    void (*start)(void *), void* arg)
1192{
1193    android_thread_id_t threadId = 0;
1194    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1195        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1196    return threadId;
1197}
1198
1199#if 0
1200static void quickTest(void* arg)
1201{
1202    const char* str = (const char*) arg;
1203
1204    printf("In quickTest: %s\n", str);
1205}
1206#endif
1207
1208#ifdef NDEBUG
1209    #define REG_JNI(name)      { name }
1210    struct RegJNIRec {
1211        int (*mProc)(JNIEnv*);
1212    };
1213#else
1214    #define REG_JNI(name)      { name, #name }
1215    struct RegJNIRec {
1216        int (*mProc)(JNIEnv*);
1217        const char* mName;
1218    };
1219#endif
1220
1221typedef void (*RegJAMProc)();
1222
1223static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1224{
1225    for (size_t i = 0; i < count; i++) {
1226        if (array[i].mProc(env) < 0) {
1227#ifndef NDEBUG
1228            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1229#endif
1230            return -1;
1231        }
1232    }
1233    return 0;
1234}
1235
1236static const RegJNIRec gRegJNI[] = {
1237    REG_JNI(register_com_android_internal_os_RuntimeInit),
1238    REG_JNI(register_android_os_SystemClock),
1239    REG_JNI(register_android_util_EventLog),
1240    REG_JNI(register_android_util_Log),
1241    REG_JNI(register_android_util_PathParser),
1242    REG_JNI(register_android_content_AssetManager),
1243    REG_JNI(register_android_content_StringBlock),
1244    REG_JNI(register_android_content_XmlBlock),
1245    REG_JNI(register_android_text_AndroidCharacter),
1246    REG_JNI(register_android_text_StaticLayout),
1247    REG_JNI(register_android_text_AndroidBidi),
1248    REG_JNI(register_android_view_InputDevice),
1249    REG_JNI(register_android_view_KeyCharacterMap),
1250    REG_JNI(register_android_os_Process),
1251    REG_JNI(register_android_os_SystemProperties),
1252    REG_JNI(register_android_os_Binder),
1253    REG_JNI(register_android_os_Parcel),
1254    REG_JNI(register_android_nio_utils),
1255    REG_JNI(register_android_graphics_Graphics),
1256    REG_JNI(register_android_view_DisplayEventReceiver),
1257    REG_JNI(register_android_view_RenderNode),
1258    REG_JNI(register_android_view_RenderNodeAnimator),
1259    REG_JNI(register_android_view_GraphicBuffer),
1260    REG_JNI(register_android_view_DisplayListCanvas),
1261    REG_JNI(register_android_view_HardwareLayer),
1262    REG_JNI(register_android_view_ThreadedRenderer),
1263    REG_JNI(register_android_view_Surface),
1264    REG_JNI(register_android_view_SurfaceControl),
1265    REG_JNI(register_android_view_SurfaceSession),
1266    REG_JNI(register_android_view_TextureView),
1267    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1268    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1269    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1270    REG_JNI(register_android_opengl_jni_EGL14),
1271    REG_JNI(register_android_opengl_jni_EGLExt),
1272    REG_JNI(register_android_opengl_jni_GLES10),
1273    REG_JNI(register_android_opengl_jni_GLES10Ext),
1274    REG_JNI(register_android_opengl_jni_GLES11),
1275    REG_JNI(register_android_opengl_jni_GLES11Ext),
1276    REG_JNI(register_android_opengl_jni_GLES20),
1277    REG_JNI(register_android_opengl_jni_GLES30),
1278    REG_JNI(register_android_opengl_jni_GLES31),
1279    REG_JNI(register_android_opengl_jni_GLES31Ext),
1280
1281    REG_JNI(register_android_graphics_Bitmap),
1282    REG_JNI(register_android_graphics_BitmapFactory),
1283    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1284    REG_JNI(register_android_graphics_Camera),
1285    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1286    REG_JNI(register_android_graphics_Canvas),
1287    REG_JNI(register_android_graphics_CanvasProperty),
1288    REG_JNI(register_android_graphics_ColorFilter),
1289    REG_JNI(register_android_graphics_DrawFilter),
1290    REG_JNI(register_android_graphics_FontFamily),
1291    REG_JNI(register_android_graphics_Interpolator),
1292    REG_JNI(register_android_graphics_LayerRasterizer),
1293    REG_JNI(register_android_graphics_MaskFilter),
1294    REG_JNI(register_android_graphics_Matrix),
1295    REG_JNI(register_android_graphics_Movie),
1296    REG_JNI(register_android_graphics_NinePatch),
1297    REG_JNI(register_android_graphics_Paint),
1298    REG_JNI(register_android_graphics_Path),
1299    REG_JNI(register_android_graphics_PathMeasure),
1300    REG_JNI(register_android_graphics_PathEffect),
1301    REG_JNI(register_android_graphics_Picture),
1302    REG_JNI(register_android_graphics_PorterDuff),
1303    REG_JNI(register_android_graphics_Rasterizer),
1304    REG_JNI(register_android_graphics_Region),
1305    REG_JNI(register_android_graphics_Shader),
1306    REG_JNI(register_android_graphics_SurfaceTexture),
1307    REG_JNI(register_android_graphics_Typeface),
1308    REG_JNI(register_android_graphics_Xfermode),
1309    REG_JNI(register_android_graphics_YuvImage),
1310    REG_JNI(register_android_graphics_pdf_PdfDocument),
1311    REG_JNI(register_android_graphics_pdf_PdfEditor),
1312    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1313
1314    REG_JNI(register_android_database_CursorWindow),
1315    REG_JNI(register_android_database_SQLiteConnection),
1316    REG_JNI(register_android_database_SQLiteGlobal),
1317    REG_JNI(register_android_database_SQLiteDebug),
1318    REG_JNI(register_android_os_Debug),
1319    REG_JNI(register_android_os_FileObserver),
1320    REG_JNI(register_android_os_MessageQueue),
1321    REG_JNI(register_android_os_SELinux),
1322    REG_JNI(register_android_os_Trace),
1323    REG_JNI(register_android_os_UEventObserver),
1324    REG_JNI(register_android_net_LocalSocketImpl),
1325    REG_JNI(register_android_net_NetworkUtils),
1326    REG_JNI(register_android_net_TrafficStats),
1327    REG_JNI(register_android_os_MemoryFile),
1328    REG_JNI(register_com_android_internal_os_Zygote),
1329    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1330    REG_JNI(register_android_hardware_Camera),
1331    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1332    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1333    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1334    REG_JNI(register_android_hardware_camera2_DngCreator),
1335    REG_JNI(register_android_hardware_Radio),
1336    REG_JNI(register_android_hardware_SensorManager),
1337    REG_JNI(register_android_hardware_SerialPort),
1338    REG_JNI(register_android_hardware_SoundTrigger),
1339    REG_JNI(register_android_hardware_UsbDevice),
1340    REG_JNI(register_android_hardware_UsbDeviceConnection),
1341    REG_JNI(register_android_hardware_UsbRequest),
1342    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1343    REG_JNI(register_android_media_AudioRecord),
1344    REG_JNI(register_android_media_AudioSystem),
1345    REG_JNI(register_android_media_AudioTrack),
1346    REG_JNI(register_android_media_JetPlayer),
1347    REG_JNI(register_android_media_RemoteDisplay),
1348    REG_JNI(register_android_media_ToneGenerator),
1349
1350    REG_JNI(register_android_opengl_classes),
1351    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1352    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1353    REG_JNI(register_android_backup_BackupDataInput),
1354    REG_JNI(register_android_backup_BackupDataOutput),
1355    REG_JNI(register_android_backup_FileBackupHelperBase),
1356    REG_JNI(register_android_backup_BackupHelperDispatcher),
1357    REG_JNI(register_android_app_backup_FullBackup),
1358    REG_JNI(register_android_app_ActivityThread),
1359    REG_JNI(register_android_app_NativeActivity),
1360    REG_JNI(register_android_view_InputChannel),
1361    REG_JNI(register_android_view_InputEventReceiver),
1362    REG_JNI(register_android_view_InputEventSender),
1363    REG_JNI(register_android_view_InputQueue),
1364    REG_JNI(register_android_view_KeyEvent),
1365    REG_JNI(register_android_view_MotionEvent),
1366    REG_JNI(register_android_view_PointerIcon),
1367    REG_JNI(register_android_view_VelocityTracker),
1368
1369    REG_JNI(register_android_content_res_ObbScanner),
1370    REG_JNI(register_android_content_res_Configuration),
1371
1372    REG_JNI(register_android_animation_PropertyValuesHolder),
1373    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1374    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1375};
1376
1377/*
1378 * Register android native functions with the VM.
1379 */
1380/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1381{
1382    ATRACE_NAME("RegisterAndroidNatives");
1383    /*
1384     * This hook causes all future threads created in this process to be
1385     * attached to the JavaVM.  (This needs to go away in favor of JNI
1386     * Attach calls.)
1387     */
1388    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1389
1390    ALOGV("--- registering native functions ---\n");
1391
1392    /*
1393     * Every "register" function calls one or more things that return
1394     * a local reference (e.g. FindClass).  Because we haven't really
1395     * started the VM yet, they're all getting stored in the base frame
1396     * and never released.  Use Push/Pop to manage the storage.
1397     */
1398    env->PushLocalFrame(200);
1399
1400    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1401        env->PopLocalFrame(NULL);
1402        return -1;
1403    }
1404    env->PopLocalFrame(NULL);
1405
1406    //createJavaThread("fubar", quickTest, (void*) "hello");
1407
1408    return 0;
1409}
1410
1411AndroidRuntime* AndroidRuntime::getRuntime()
1412{
1413    return gCurRuntime;
1414}
1415
1416/**
1417 * Used by surface flinger's DdmConnection to register native methods from
1418 * the framework.
1419 */
1420extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1421    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1422}
1423}   // namespace android
1424