AndroidRuntime.cpp revision b20a0ce59f59cb5ec857748e056cc341dbd13b92 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define ATRACE_TAG ATRACE_TAG_DALVIK
18#define LOG_TAG "AndroidRuntime"
19#define LOG_NDEBUG 1
20
21#include <android_runtime/AndroidRuntime.h>
22
23#include <android-base/properties.h>
24#include <binder/IBinder.h>
25#include <binder/IPCThreadState.h>
26#include <binder/IServiceManager.h>
27#include <utils/Log.h>
28#include <utils/misc.h>
29#include <utils/Trace.h>
30#include <binder/Parcel.h>
31#include <utils/threads.h>
32#include <cutils/properties.h>
33
34#include <SkGraphics.h>
35
36#include "jni.h"
37#include <nativehelper/JNIHelp.h>
38#include <nativehelper/JniInvocation.h>
39#include "android_util_Binder.h"
40
41#include <stdio.h>
42#include <signal.h>
43#include <sys/stat.h>
44#include <sys/types.h>
45#include <signal.h>
46#include <dirent.h>
47#include <assert.h>
48
49#include <string>
50#include <vector>
51
52using namespace android;
53using android::base::GetProperty;
54
55extern int register_android_os_Binder(JNIEnv* env);
56extern int register_android_os_Process(JNIEnv* env);
57extern int register_android_graphics_Bitmap(JNIEnv*);
58extern int register_android_graphics_BitmapFactory(JNIEnv*);
59extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
60extern int register_android_graphics_ByteBufferStreamAdaptor(JNIEnv* env);
61extern int register_android_graphics_Camera(JNIEnv* env);
62extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
63extern int register_android_graphics_GraphicBuffer(JNIEnv* env);
64extern int register_android_graphics_Graphics(JNIEnv* env);
65extern int register_android_graphics_ImageDecoder(JNIEnv*);
66extern int register_android_graphics_Interpolator(JNIEnv* env);
67extern int register_android_graphics_MaskFilter(JNIEnv* env);
68extern int register_android_graphics_Movie(JNIEnv* env);
69extern int register_android_graphics_NinePatch(JNIEnv*);
70extern int register_android_graphics_PathEffect(JNIEnv* env);
71extern int register_android_graphics_Shader(JNIEnv* env);
72extern int register_android_graphics_Typeface(JNIEnv* env);
73extern int register_android_graphics_YuvImage(JNIEnv* env);
74
75extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
76extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
77extern int register_android_opengl_jni_EGL14(JNIEnv* env);
78extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
79extern int register_android_opengl_jni_GLES10(JNIEnv* env);
80extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
81extern int register_android_opengl_jni_GLES11(JNIEnv* env);
82extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
83extern int register_android_opengl_jni_GLES20(JNIEnv* env);
84extern int register_android_opengl_jni_GLES30(JNIEnv* env);
85extern int register_android_opengl_jni_GLES31(JNIEnv* env);
86extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
87extern int register_android_opengl_jni_GLES32(JNIEnv* env);
88
89extern int register_android_hardware_Camera(JNIEnv *env);
90extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
91extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env);
92extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env);
93extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
94extern int register_android_hardware_HardwareBuffer(JNIEnv *env);
95extern int register_android_hardware_SensorManager(JNIEnv *env);
96extern int register_android_hardware_SerialPort(JNIEnv *env);
97extern int register_android_hardware_SoundTrigger(JNIEnv *env);
98extern int register_android_hardware_UsbDevice(JNIEnv *env);
99extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
100extern int register_android_hardware_UsbRequest(JNIEnv *env);
101extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
102
103extern int register_android_media_AudioRecord(JNIEnv *env);
104extern int register_android_media_AudioSystem(JNIEnv *env);
105extern int register_android_media_AudioTrack(JNIEnv *env);
106extern int register_android_media_JetPlayer(JNIEnv *env);
107extern int register_android_media_ToneGenerator(JNIEnv *env);
108
109namespace android {
110
111/*
112 * JNI-based registration functions.  Note these are properly contained in
113 * namespace android.
114 */
115extern int register_android_app_admin_SecurityLog(JNIEnv* env);
116extern int register_android_content_AssetManager(JNIEnv* env);
117extern int register_android_util_EventLog(JNIEnv* env);
118extern int register_android_util_StatsLog(JNIEnv* env);
119extern int register_android_util_Log(JNIEnv* env);
120extern int register_android_util_MemoryIntArray(JNIEnv* env);
121extern int register_android_util_PathParser(JNIEnv* env);
122extern int register_android_content_StringBlock(JNIEnv* env);
123extern int register_android_content_XmlBlock(JNIEnv* env);
124extern int register_android_content_res_ApkAssets(JNIEnv* env);
125extern int register_android_graphics_Canvas(JNIEnv* env);
126extern int register_android_graphics_CanvasProperty(JNIEnv* env);
127extern int register_android_graphics_ColorFilter(JNIEnv* env);
128extern int register_android_graphics_DrawFilter(JNIEnv* env);
129extern int register_android_graphics_FontFamily(JNIEnv* env);
130extern int register_android_graphics_Matrix(JNIEnv* env);
131extern int register_android_graphics_Paint(JNIEnv* env);
132extern int register_android_graphics_Path(JNIEnv* env);
133extern int register_android_graphics_PathMeasure(JNIEnv* env);
134extern int register_android_graphics_Picture(JNIEnv*);
135extern int register_android_graphics_Region(JNIEnv* env);
136extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
137extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env);
138extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
139extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
140extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
141extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
142extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
143extern int register_android_view_DisplayListCanvas(JNIEnv* env);
144extern int register_android_view_HardwareLayer(JNIEnv* env);
145extern int register_android_view_RenderNode(JNIEnv* env);
146extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
147extern int register_android_view_Surface(JNIEnv* env);
148extern int register_android_view_SurfaceControl(JNIEnv* env);
149extern int register_android_view_SurfaceSession(JNIEnv* env);
150extern int register_android_view_TextureView(JNIEnv* env);
151extern int register_android_view_ThreadedRenderer(JNIEnv* env);
152extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
153extern int register_android_database_CursorWindow(JNIEnv* env);
154extern int register_android_database_SQLiteConnection(JNIEnv* env);
155extern int register_android_database_SQLiteGlobal(JNIEnv* env);
156extern int register_android_database_SQLiteDebug(JNIEnv* env);
157extern int register_android_nio_utils(JNIEnv* env);
158extern int register_android_os_Debug(JNIEnv* env);
159extern int register_android_os_GraphicsEnvironment(JNIEnv* env);
160extern int register_android_os_HidlSupport(JNIEnv* env);
161extern int register_android_os_HwBinder(JNIEnv *env);
162extern int register_android_os_HwBlob(JNIEnv *env);
163extern int register_android_os_HwParcel(JNIEnv *env);
164extern int register_android_os_HwRemoteBinder(JNIEnv *env);
165extern int register_android_os_MessageQueue(JNIEnv* env);
166extern int register_android_os_Parcel(JNIEnv* env);
167extern int register_android_os_SELinux(JNIEnv* env);
168extern int register_android_os_VintfObject(JNIEnv *env);
169extern int register_android_os_VintfRuntimeInfo(JNIEnv *env);
170extern int register_android_os_seccomp(JNIEnv* env);
171extern int register_android_os_SystemProperties(JNIEnv *env);
172extern int register_android_os_SystemClock(JNIEnv* env);
173extern int register_android_os_Trace(JNIEnv* env);
174extern int register_android_os_FileObserver(JNIEnv *env);
175extern int register_android_os_UEventObserver(JNIEnv* env);
176extern int register_android_os_MemoryFile(JNIEnv* env);
177extern int register_android_os_SharedMemory(JNIEnv* env);
178extern int register_android_net_LocalSocketImpl(JNIEnv* env);
179extern int register_android_net_NetworkUtils(JNIEnv* env);
180extern int register_android_text_AndroidCharacter(JNIEnv *env);
181extern int register_android_text_Hyphenator(JNIEnv *env);
182extern int register_android_text_MeasuredText(JNIEnv* env);
183extern int register_android_text_StaticLayout(JNIEnv *env);
184extern int register_android_opengl_classes(JNIEnv *env);
185extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
186extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
187extern int register_android_backup_BackupDataInput(JNIEnv *env);
188extern int register_android_backup_BackupDataOutput(JNIEnv *env);
189extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
190extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
191extern int register_android_app_backup_FullBackup(JNIEnv *env);
192extern int register_android_app_Activity(JNIEnv *env);
193extern int register_android_app_ActivityThread(JNIEnv *env);
194extern int register_android_app_NativeActivity(JNIEnv *env);
195extern int register_android_media_RemoteDisplay(JNIEnv *env);
196extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
197extern int register_android_view_InputChannel(JNIEnv* env);
198extern int register_android_view_InputDevice(JNIEnv* env);
199extern int register_android_view_InputEventReceiver(JNIEnv* env);
200extern int register_android_view_InputEventSender(JNIEnv* env);
201extern int register_android_view_InputQueue(JNIEnv* env);
202extern int register_android_view_KeyCharacterMap(JNIEnv *env);
203extern int register_android_view_KeyEvent(JNIEnv* env);
204extern int register_android_view_MotionEvent(JNIEnv* env);
205extern int register_android_view_PointerIcon(JNIEnv* env);
206extern int register_android_view_VelocityTracker(JNIEnv* env);
207extern int register_android_content_res_ObbScanner(JNIEnv* env);
208extern int register_android_content_res_Configuration(JNIEnv* env);
209extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
210extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
211extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
212extern int register_com_android_internal_os_ClassLoaderFactory(JNIEnv* env);
213extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env);
214extern int register_com_android_internal_os_Zygote(JNIEnv *env);
215extern int register_com_android_internal_os_ZygoteInit(JNIEnv *env);
216extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
217
218static AndroidRuntime* gCurRuntime = NULL;
219
220/*
221 * Code written in the Java Programming Language calls here from main().
222 */
223static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
224{
225    gCurRuntime->onStarted();
226}
227
228static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
229{
230    gCurRuntime->onZygoteInit();
231}
232
233static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
234        jobject clazz, jboolean exitWithoutCleanup)
235{
236    gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
237}
238
239/*
240 * JNI registration.
241 */
242
243int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
244{
245    const JNINativeMethod methods[] = {
246        { "nativeFinishInit", "()V",
247            (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
248        { "nativeSetExitWithoutCleanup", "(Z)V",
249            (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
250    };
251    return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
252        methods, NELEM(methods));
253}
254
255int register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env)
256{
257    const JNINativeMethod methods[] = {
258        { "nativeZygoteInit", "()V",
259            (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit },
260    };
261    return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit",
262        methods, NELEM(methods));
263}
264
265// ----------------------------------------------------------------------
266
267/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
268
269AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
270        mExitWithoutCleanup(false),
271        mArgBlockStart(argBlockStart),
272        mArgBlockLength(argBlockLength)
273{
274    SkGraphics::Init();
275
276    // Pre-allocate enough space to hold a fair number of options.
277    mOptions.setCapacity(20);
278
279    assert(gCurRuntime == NULL);        // one per process
280    gCurRuntime = this;
281}
282
283AndroidRuntime::~AndroidRuntime()
284{
285}
286
287/*
288 * Register native methods using JNI.
289 */
290/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
291    const char* className, const JNINativeMethod* gMethods, int numMethods)
292{
293    return jniRegisterNativeMethods(env, className, gMethods, numMethods);
294}
295
296void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
297    if (setProcName) {
298        int len = strlen(argv0);
299        if (len < 15) {
300            pthread_setname_np(pthread_self(), argv0);
301        } else {
302            pthread_setname_np(pthread_self(), argv0 + len - 15);
303        }
304    }
305    memset(mArgBlockStart, 0, mArgBlockLength);
306    strlcpy(mArgBlockStart, argv0, mArgBlockLength);
307}
308
309status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
310    const Vector<String8>& args)
311{
312    JNIEnv* env;
313    jmethodID methodId;
314
315    ALOGD("Calling main entry %s", className.string());
316
317    env = getJNIEnv();
318    if (clazz == NULL || env == NULL) {
319        return UNKNOWN_ERROR;
320    }
321
322    methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
323    if (methodId == NULL) {
324        ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
325        return UNKNOWN_ERROR;
326    }
327
328    /*
329     * We want to call main() with a String array with our arguments in it.
330     * Create an array and populate it.
331     */
332    jclass stringClass;
333    jobjectArray strArray;
334
335    const size_t numArgs = args.size();
336    stringClass = env->FindClass("java/lang/String");
337    strArray = env->NewObjectArray(numArgs, stringClass, NULL);
338
339    for (size_t i = 0; i < numArgs; i++) {
340        jstring argStr = env->NewStringUTF(args[i].string());
341        env->SetObjectArrayElement(strArray, i, argStr);
342    }
343
344    env->CallStaticVoidMethod(clazz, methodId, strArray);
345    return NO_ERROR;
346}
347
348/*
349 * The VM calls this through the "exit" hook.
350 */
351static void runtime_exit(int code)
352{
353    gCurRuntime->exit(code);
354}
355
356/*
357 * The VM calls this through the "vfprintf" hook.
358 *
359 * We ignore "fp" and just write the results to the log file.
360 */
361static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
362{
363    LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
364}
365
366/**
367 * The VM calls this when mutex contention debugging is enabled to
368 * determine whether or not the blocked thread was a "sensitive thread"
369 * for user responsiveness/smoothess.
370 *
371 * Our policy for this is whether or not we're tracing any StrictMode
372 * events on this thread (which we might've inherited via Binder calls
373 * into us)
374 */
375static bool runtime_isSensitiveThread() {
376    IPCThreadState* state = IPCThreadState::selfOrNull();
377    return state && state->getStrictModePolicy() != 0;
378}
379
380static int hasDir(const char* dir)
381{
382    struct stat s;
383    int res = stat(dir, &s);
384    if (res == 0) {
385        return S_ISDIR(s.st_mode);
386    }
387    return 0;
388}
389
390static bool hasFile(const char* file) {
391    struct stat s;
392    int res = stat(file, &s);
393    if (res == 0) {
394        return S_ISREG(s.st_mode);
395    }
396    return false;
397}
398
399/*
400 * Read the persistent locale. Inspects the following system properties
401 * (in order) and returns the first non-empty property in the list :
402 *
403 * (1) persist.sys.locale
404 * (2) persist.sys.language/country/localevar (country and localevar are
405 * inspected iff. language is non-empty.
406 * (3) ro.product.locale
407 * (4) ro.product.locale.language/region
408 *
409 * Note that we need to inspect persist.sys.language/country/localevar to
410 * preserve language settings for devices that are upgrading from Lollipop
411 * to M. The same goes for ro.product.locale.language/region as well.
412 */
413const std::string readLocale()
414{
415    const std::string locale = GetProperty("persist.sys.locale", "");
416    if (!locale.empty()) {
417        return locale;
418    }
419
420    const std::string language = GetProperty("persist.sys.language", "");
421    if (!language.empty()) {
422        const std::string country = GetProperty("persist.sys.country", "");
423        const std::string variant = GetProperty("persist.sys.localevar", "");
424
425        std::string out = language;
426        if (!country.empty()) {
427            out = out + "-" + country;
428        }
429
430        if (!variant.empty()) {
431            out = out + "-" + variant;
432        }
433
434        return out;
435    }
436
437    const std::string productLocale = GetProperty("ro.product.locale", "");
438    if (!productLocale.empty()) {
439        return productLocale;
440    }
441
442    // If persist.sys.locale and ro.product.locale are missing,
443    // construct a locale value from the individual locale components.
444    const std::string productLanguage = GetProperty("ro.product.locale.language", "en");
445    const std::string productRegion = GetProperty("ro.product.locale.region", "US");
446
447    return productLanguage + "-" + productRegion;
448}
449
450void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
451{
452    JavaVMOption opt;
453    opt.optionString = optionString;
454    opt.extraInfo = extraInfo;
455    mOptions.add(opt);
456}
457
458/*
459 * Parse a property containing space-separated options that should be
460 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
461 *
462 * This will cut up "extraOptsBuf" as we chop it into individual options.
463 *
464 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
465 *
466 * Adds the strings, if any, to mOptions.
467 */
468void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
469{
470    char* start = extraOptsBuf;
471    char* end = NULL;
472    while (*start != '\0') {
473        while (*start == ' ')                   /* skip leading whitespace */
474            start++;
475        if (*start == '\0')                     /* was trailing ws, bail */
476            break;
477
478        end = start+1;
479        while (*end != ' ' && *end != '\0')     /* find end of token */
480            end++;
481        if (*end == ' ')
482            *end++ = '\0';          /* mark end, advance to indicate more */
483
484        if (quotingArg != NULL) {
485            addOption(quotingArg);
486        }
487        addOption(start);
488        start = end;
489    }
490}
491
492/*
493 * Reads a "property" into "buffer" with a default of "defaultArg". If
494 * the property is non-empty, it is treated as a runtime option such
495 * as "-Xmx32m".
496 *
497 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
498 *
499 * If an argument is found, it is added to mOptions.
500 *
501 * If an option is found, it is added to mOptions and true is
502 * returned. Otherwise false is returned.
503 */
504bool AndroidRuntime::parseRuntimeOption(const char* property,
505                                        char* buffer,
506                                        const char* runtimeArg,
507                                        const char* defaultArg)
508{
509    strcpy(buffer, runtimeArg);
510    size_t runtimeArgLen = strlen(runtimeArg);
511    property_get(property, buffer+runtimeArgLen, defaultArg);
512    if (buffer[runtimeArgLen] == '\0') {
513        return false;
514    }
515    addOption(buffer);
516    return true;
517}
518
519/*
520 * Reads a "property" into "buffer". If the property is non-empty, it
521 * is treated as a dex2oat compiler option that should be
522 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified".
523 *
524 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
525 *
526 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
527 *
528 * If an option is found, it is added to mOptions and true is
529 * returned. Otherwise false is returned.
530 */
531bool AndroidRuntime::parseCompilerOption(const char* property,
532                                         char* buffer,
533                                         const char* compilerArg,
534                                         const char* quotingArg)
535{
536    strcpy(buffer, compilerArg);
537    size_t compilerArgLen = strlen(compilerArg);
538    property_get(property, buffer+compilerArgLen, "");
539    if (buffer[compilerArgLen] == '\0') {
540        return false;
541    }
542    addOption(quotingArg);
543    addOption(buffer);
544    return true;
545}
546
547/*
548 * Reads a "property" into "buffer". If the property is non-empty, it
549 * is treated as a dex2oat compiler runtime option that should be
550 * passed as a quoted option, e.g. "-Ximage-compiler-option
551 * --runtime-arg -Ximage-compiler-option -Xmx32m".
552 *
553 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
554 *
555 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
556 *
557 * If an option is found, it is added to mOptions and true is
558 * returned. Otherwise false is returned.
559 */
560bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
561                                                char* buffer,
562                                                const char* runtimeArg,
563                                                const char* quotingArg)
564{
565    strcpy(buffer, runtimeArg);
566    size_t runtimeArgLen = strlen(runtimeArg);
567    property_get(property, buffer+runtimeArgLen, "");
568    if (buffer[runtimeArgLen] == '\0') {
569        return false;
570    }
571    addOption(quotingArg);
572    addOption("--runtime-arg");
573    addOption(quotingArg);
574    addOption(buffer);
575    return true;
576}
577
578/*
579 * Start the Dalvik Virtual Machine.
580 *
581 * Various arguments, most determined by system properties, are passed in.
582 * The "mOptions" vector is updated.
583 *
584 * CAUTION: when adding options in here, be careful not to put the
585 * char buffer inside a nested scope.  Adding the buffer to the
586 * options using mOptions.add() does not copy the buffer, so if the
587 * buffer goes out of scope the option may be overwritten.  It's best
588 * to put the buffer at the top of the function so that it is more
589 * unlikely that someone will surround it in a scope at a later time
590 * and thus introduce a bug.
591 *
592 * Returns 0 on success.
593 */
594int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
595{
596    JavaVMInitArgs initArgs;
597    char propBuf[PROPERTY_VALUE_MAX];
598    char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
599    char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
600    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
601    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
602    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
603    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
604    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
605    char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
606    char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
607    char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
608    char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
609    char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
610    char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
611    char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
612    char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX];
613    char madviseRandomOptsBuf[sizeof("-XX:MadviseRandomAccess:")-1 + PROPERTY_VALUE_MAX];
614    char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
615    char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
616    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
617    char foregroundHeapGrowthMultiplierOptsBuf[
618            sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX];
619    char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
620    char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
621    char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
622    char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
623    char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
624    char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
625    char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
626    char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
627    char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
628    char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
629    char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
630    char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
631    char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
632    char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
633    char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
634    char extraOptsBuf[PROPERTY_VALUE_MAX];
635    char voldDecryptBuf[PROPERTY_VALUE_MAX];
636    enum {
637      kEMDefault,
638      kEMIntPortable,
639      kEMIntFast,
640      kEMJitCompiler,
641    } executionMode = kEMDefault;
642    char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
643    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
644    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
645    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
646    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
647    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
648    std::string fingerprintBuf;
649    char jdwpProviderBuf[sizeof("-XjdwpProvider:") - 1 + PROPERTY_VALUE_MAX];
650
651    bool checkJni = false;
652    property_get("dalvik.vm.checkjni", propBuf, "");
653    if (strcmp(propBuf, "true") == 0) {
654        checkJni = true;
655    } else if (strcmp(propBuf, "false") != 0) {
656        /* property is neither true nor false; fall back on kernel parameter */
657        property_get("ro.kernel.android.checkjni", propBuf, "");
658        if (propBuf[0] == '1') {
659            checkJni = true;
660        }
661    }
662    ALOGV("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
663    if (checkJni) {
664        /* extended JNI checking */
665        addOption("-Xcheck:jni");
666
667        /* with -Xcheck:jni, this provides a JNI function call trace */
668        //addOption("-verbose:jni");
669    }
670
671    property_get("dalvik.vm.execution-mode", propBuf, "");
672    if (strcmp(propBuf, "int:portable") == 0) {
673        executionMode = kEMIntPortable;
674    } else if (strcmp(propBuf, "int:fast") == 0) {
675        executionMode = kEMIntFast;
676    } else if (strcmp(propBuf, "int:jit") == 0) {
677        executionMode = kEMJitCompiler;
678    }
679
680    // If dalvik.vm.stack-trace-dir is set, it enables the "new" stack trace
681    // dump scheme and a new file is created for each stack dump. If it isn't set,
682    // the old scheme is enabled.
683    property_get("dalvik.vm.stack-trace-dir", propBuf, "");
684    if (strlen(propBuf) > 0) {
685        addOption("-Xusetombstonedtraces");
686    } else {
687        parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
688    }
689
690    strcpy(jniOptsBuf, "-Xjniopts:");
691    if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
692        ALOGI("JNI options: '%s'\n", jniOptsBuf);
693    }
694
695    /* route exit() to our handler */
696    addOption("exit", (void*) runtime_exit);
697
698    /* route fprintf() to our handler */
699    addOption("vfprintf", (void*) runtime_vfprintf);
700
701    /* register the framework-specific "is sensitive thread" hook */
702    addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
703
704    /* enable verbose; standard options are { jni, gc, class } */
705    //addOption("-verbose:jni");
706    addOption("-verbose:gc");
707    //addOption("-verbose:class");
708
709    /*
710     * The default starting and maximum size of the heap.  Larger
711     * values should be specified in a product property override.
712     */
713    parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
714    parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
715
716    parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
717    parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
718    parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
719    parseRuntimeOption("dalvik.vm.heaptargetutilization",
720                       heaptargetutilizationOptsBuf,
721                       "-XX:HeapTargetUtilization=");
722
723    /* Foreground heap growth multiplier option */
724    parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier",
725                       foregroundHeapGrowthMultiplierOptsBuf,
726                       "-XX:ForegroundHeapGrowthMultiplier=");
727
728    /*
729     * JIT related options.
730     */
731    parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
732    parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
733    parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
734    parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
735    property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
736    if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
737        addOption("-Xjitsaveprofilinginfo");
738    }
739
740    parseRuntimeOption("dalvik.vm.jitprithreadweight",
741                       jitprithreadweightOptBuf,
742                       "-Xjitprithreadweight:");
743
744    parseRuntimeOption("dalvik.vm.jittransitionweight",
745                       jittransitionweightOptBuf,
746                       "-Xjittransitionweight:");
747
748    /*
749     * Madvise related options.
750     */
751    parseRuntimeOption("dalvik.vm.madvise-random", madviseRandomOptsBuf, "-XX:MadviseRandomAccess:");
752
753    /*
754     * Profile related options.
755     */
756    parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf,
757            "-Xps-hot-startup-method-samples:");
758
759    property_get("ro.config.low_ram", propBuf, "");
760    if (strcmp(propBuf, "true") == 0) {
761      addOption("-XX:LowMemoryMode");
762    }
763
764    parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
765    parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
766
767    /*
768     * Enable debugging only for apps forked from zygote.
769     * Set suspend=y to pause during VM init and use android ADB transport.
770     */
771    if (zygote) {
772      addOption("-XjdwpOptions:suspend=n,server=y");
773    }
774
775    // Set the JDWP provider. By default let the runtime choose.
776    parseRuntimeOption("dalvik.vm.jdwp-provider",
777                       jdwpProviderBuf,
778                       "-XjdwpProvider:",
779                       "default");
780
781    parseRuntimeOption("dalvik.vm.lockprof.threshold",
782                       lockProfThresholdBuf,
783                       "-Xlockprofthreshold:");
784
785    if (executionMode == kEMIntPortable) {
786        addOption("-Xint:portable");
787    } else if (executionMode == kEMIntFast) {
788        addOption("-Xint:fast");
789    } else if (executionMode == kEMJitCompiler) {
790        addOption("-Xint:jit");
791    }
792
793    // If we are booting without the real /data, don't spend time compiling.
794    property_get("vold.decrypt", voldDecryptBuf, "");
795    bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
796                             (strcmp(voldDecryptBuf, "1") == 0));
797
798    // Extra options for boot.art/boot.oat image generation.
799    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
800                               "-Xms", "-Ximage-compiler-option");
801    parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
802                               "-Xmx", "-Ximage-compiler-option");
803    if (skip_compilation) {
804        addOption("-Ximage-compiler-option");
805        addOption("--compiler-filter=assume-verified");
806    } else {
807        parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
808                            "--compiler-filter=", "-Ximage-compiler-option");
809    }
810
811    // If there is a boot profile, it takes precedence over the image and preloaded classes.
812    if (hasFile("/system/etc/boot-image.prof")) {
813        addOption("-Ximage-compiler-option");
814        addOption("--profile-file=/system/etc/boot-image.prof");
815        addOption("-Ximage-compiler-option");
816        addOption("--compiler-filter=speed-profile");
817    } else {
818        // Make sure there is a preloaded-classes file.
819        if (!hasFile("/system/etc/preloaded-classes")) {
820            ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
821                  strerror(errno));
822            return -1;
823        }
824        addOption("-Ximage-compiler-option");
825        addOption("--image-classes=/system/etc/preloaded-classes");
826
827        // If there is a compiled-classes file, push it.
828        if (hasFile("/system/etc/compiled-classes")) {
829            addOption("-Ximage-compiler-option");
830            addOption("--compiled-classes=/system/etc/compiled-classes");
831        }
832
833        // If there is a dirty-image-objects file, push it.
834        if (hasFile("/system/etc/dirty-image-objects")) {
835            addOption("-Ximage-compiler-option");
836            addOption("--dirty-image-objects=/system/etc/dirty-image-objects");
837        }
838    }
839
840    property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
841    parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
842
843    // Extra options for DexClassLoader.
844    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
845                               "-Xms", "-Xcompiler-option");
846    parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
847                               "-Xmx", "-Xcompiler-option");
848    if (skip_compilation) {
849        addOption("-Xcompiler-option");
850        addOption("--compiler-filter=assume-verified");
851
852        // We skip compilation when a minimal runtime is brought up for decryption. In that case
853        // /data is temporarily backed by a tmpfs, which is usually small.
854        // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
855        // specific situation it is acceptable to *not* relocate and run out of the prebuilts
856        // directly instead.
857        addOption("--runtime-arg");
858        addOption("-Xnorelocate");
859    } else {
860        parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
861                            "--compiler-filter=", "-Xcompiler-option");
862    }
863    parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
864    parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
865                        "-Ximage-compiler-option");
866
867    // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
868    // pass the instruction-set-features/variant as an image-compiler-option.
869    // TODO: Find a better way for the instruction-set.
870#if defined(__arm__)
871    constexpr const char* instruction_set = "arm";
872#elif defined(__aarch64__)
873    constexpr const char* instruction_set = "arm64";
874#elif defined(__mips__) && !defined(__LP64__)
875    constexpr const char* instruction_set = "mips";
876#elif defined(__mips__) && defined(__LP64__)
877    constexpr const char* instruction_set = "mips64";
878#elif defined(__i386__)
879    constexpr const char* instruction_set = "x86";
880#elif defined(__x86_64__)
881    constexpr const char* instruction_set = "x86_64";
882#else
883    constexpr const char* instruction_set = "unknown";
884#endif
885    // Note: it is OK to reuse the buffer, as the values are exactly the same between
886    //       * compiler-option, used for runtime compilation (DexClassLoader)
887    //       * image-compiler-option, used for boot-image compilation on device
888
889    // Copy the variant.
890    sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
891    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
892                        "--instruction-set-variant=", "-Ximage-compiler-option");
893    parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
894                        "--instruction-set-variant=", "-Xcompiler-option");
895    // Copy the features.
896    sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
897    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
898                        "--instruction-set-features=", "-Ximage-compiler-option");
899    parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
900                        "--instruction-set-features=", "-Xcompiler-option");
901
902
903    property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
904    parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
905
906    /* extra options; parse this late so it overrides others */
907    property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
908    parseExtraOpts(extraOptsBuf, NULL);
909
910    /* Set the properties for locale */
911    {
912        strcpy(localeOption, "-Duser.locale=");
913        const std::string locale = readLocale();
914        strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
915        addOption(localeOption);
916    }
917
918    // Trace files are stored in /data/misc/trace which is writable only in debug mode.
919    property_get("ro.debuggable", propBuf, "0");
920    if (strcmp(propBuf, "1") == 0) {
921        property_get("dalvik.vm.method-trace", propBuf, "false");
922        if (strcmp(propBuf, "true") == 0) {
923            addOption("-Xmethod-trace");
924            parseRuntimeOption("dalvik.vm.method-trace-file",
925                               methodTraceFileBuf,
926                               "-Xmethod-trace-file:");
927            parseRuntimeOption("dalvik.vm.method-trace-file-siz",
928                               methodTraceFileSizeBuf,
929                               "-Xmethod-trace-file-size:");
930            property_get("dalvik.vm.method-trace-stream", propBuf, "false");
931            if (strcmp(propBuf, "true") == 0) {
932                addOption("-Xmethod-trace-stream");
933            }
934        }
935    }
936
937    // Native bridge library. "0" means that native bridge is disabled.
938    property_get("ro.dalvik.vm.native.bridge", propBuf, "");
939    if (propBuf[0] == '\0') {
940        ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
941    } else if (strcmp(propBuf, "0") != 0) {
942        snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
943                 "-XX:NativeBridge=%s", propBuf);
944        addOption(nativeBridgeLibrary);
945    }
946
947#if defined(__LP64__)
948    const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
949#else
950    const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
951#endif  // defined(__LP64__)
952    property_get(cpu_abilist_property_name, propBuf, "");
953    if (propBuf[0] == '\0') {
954        ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
955        return -1;
956    }
957    snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
958    addOption(cpuAbiListBuf);
959
960    // Dalvik-cache pruning counter.
961    parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
962                       "-Xzygote-max-boot-retry=");
963
964    /*
965     * When running with debug.generate-debug-info, add --generate-debug-info to
966     * the compiler options so that the boot image, if it is compiled on device,
967     * will include native debugging information.
968     */
969    property_get("debug.generate-debug-info", propBuf, "");
970    if (strcmp(propBuf, "true") == 0) {
971        addOption("-Xcompiler-option");
972        addOption("--generate-debug-info");
973        addOption("-Ximage-compiler-option");
974        addOption("--generate-debug-info");
975    }
976
977    /*
978     * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
979     * contain the fingerprint and can be parsed.
980     * Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot
981     * be used here.
982     * Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions.
983     */
984    std::string fingerprint = GetProperty("ro.build.fingerprint", "");
985    if (!fingerprint.empty()) {
986        fingerprintBuf = "-Xfingerprint:" + fingerprint;
987        addOption(fingerprintBuf.c_str());
988    }
989
990    initArgs.version = JNI_VERSION_1_4;
991    initArgs.options = mOptions.editArray();
992    initArgs.nOptions = mOptions.size();
993    initArgs.ignoreUnrecognized = JNI_FALSE;
994
995    /*
996     * Initialize the VM.
997     *
998     * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
999     * If this call succeeds, the VM is ready, and we can start issuing
1000     * JNI calls.
1001     */
1002    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
1003        ALOGE("JNI_CreateJavaVM failed\n");
1004        return -1;
1005    }
1006
1007    return 0;
1008}
1009
1010char* AndroidRuntime::toSlashClassName(const char* className)
1011{
1012    char* result = strdup(className);
1013    for (char* cp = result; *cp != '\0'; cp++) {
1014        if (*cp == '.') {
1015            *cp = '/';
1016        }
1017    }
1018    return result;
1019}
1020
1021/** Create a Java string from an ASCII or Latin-1 string */
1022jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
1023    if (!bytes) return NULL;
1024    int length = strlen(bytes);
1025    jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
1026    if (!buffer) return NULL;
1027    jchar* chp = buffer;
1028    for (int i = 0; i < length; i++) {
1029        *chp++ = *bytes++;
1030    }
1031    return env->NewString(buffer, length);
1032}
1033
1034
1035/*
1036 * Start the Android runtime.  This involves starting the virtual machine
1037 * and calling the "static void main(String[] args)" method in the class
1038 * named by "className".
1039 *
1040 * Passes the main function two arguments, the class name and the specified
1041 * options string.
1042 */
1043void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
1044{
1045    ALOGD(">>>>>> START %s uid %d <<<<<<\n",
1046            className != NULL ? className : "(unknown)", getuid());
1047
1048    static const String8 startSystemServer("start-system-server");
1049
1050    /*
1051     * 'startSystemServer == true' means runtime is obsolete and not run from
1052     * init.rc anymore, so we print out the boot start event here.
1053     */
1054    for (size_t i = 0; i < options.size(); ++i) {
1055        if (options[i] == startSystemServer) {
1056           /* track our progress through the boot sequence */
1057           const int LOG_BOOT_PROGRESS_START = 3000;
1058           LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
1059        }
1060    }
1061
1062    const char* rootDir = getenv("ANDROID_ROOT");
1063    if (rootDir == NULL) {
1064        rootDir = "/system";
1065        if (!hasDir("/system")) {
1066            LOG_FATAL("No root directory specified, and /android does not exist.");
1067            return;
1068        }
1069        setenv("ANDROID_ROOT", rootDir, 1);
1070    }
1071
1072    //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1073    //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1074
1075    /* start the virtual machine */
1076    JniInvocation jni_invocation;
1077    jni_invocation.Init(NULL);
1078    JNIEnv* env;
1079    if (startVm(&mJavaVM, &env, zygote) != 0) {
1080        return;
1081    }
1082    onVmCreated(env);
1083
1084    /*
1085     * Register android functions.
1086     */
1087    if (startReg(env) < 0) {
1088        ALOGE("Unable to register all android natives\n");
1089        return;
1090    }
1091
1092    /*
1093     * We want to call main() with a String array with arguments in it.
1094     * At present we have two arguments, the class name and an option string.
1095     * Create an array to hold them.
1096     */
1097    jclass stringClass;
1098    jobjectArray strArray;
1099    jstring classNameStr;
1100
1101    stringClass = env->FindClass("java/lang/String");
1102    assert(stringClass != NULL);
1103    strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1104    assert(strArray != NULL);
1105    classNameStr = env->NewStringUTF(className);
1106    assert(classNameStr != NULL);
1107    env->SetObjectArrayElement(strArray, 0, classNameStr);
1108
1109    for (size_t i = 0; i < options.size(); ++i) {
1110        jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1111        assert(optionsStr != NULL);
1112        env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1113    }
1114
1115    /*
1116     * Start VM.  This thread becomes the main thread of the VM, and will
1117     * not return until the VM exits.
1118     */
1119    char* slashClassName = toSlashClassName(className != NULL ? className : "");
1120    jclass startClass = env->FindClass(slashClassName);
1121    if (startClass == NULL) {
1122        ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1123        /* keep going */
1124    } else {
1125        jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1126            "([Ljava/lang/String;)V");
1127        if (startMeth == NULL) {
1128            ALOGE("JavaVM unable to find main() in '%s'\n", className);
1129            /* keep going */
1130        } else {
1131            env->CallStaticVoidMethod(startClass, startMeth, strArray);
1132
1133#if 0
1134            if (env->ExceptionCheck())
1135                threadExitUncaughtException(env);
1136#endif
1137        }
1138    }
1139    free(slashClassName);
1140
1141    ALOGD("Shutting down VM\n");
1142    if (mJavaVM->DetachCurrentThread() != JNI_OK)
1143        ALOGW("Warning: unable to detach main thread\n");
1144    if (mJavaVM->DestroyJavaVM() != 0)
1145        ALOGW("Warning: VM did not shut down cleanly\n");
1146}
1147
1148void AndroidRuntime::exit(int code)
1149{
1150    if (mExitWithoutCleanup) {
1151        ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1152        ::_exit(code);
1153    } else {
1154        ALOGI("VM exiting with result code %d.", code);
1155        onExit(code);
1156        ::exit(code);
1157    }
1158}
1159
1160void AndroidRuntime::onVmCreated(JNIEnv* env)
1161{
1162    // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1163}
1164
1165/*
1166 * Get the JNIEnv pointer for this thread.
1167 *
1168 * Returns NULL if the slot wasn't allocated or populated.
1169 */
1170/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1171{
1172    JNIEnv* env;
1173    JavaVM* vm = AndroidRuntime::getJavaVM();
1174    assert(vm != NULL);
1175
1176    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1177        return NULL;
1178    return env;
1179}
1180
1181/*
1182 * Makes the current thread visible to the VM.
1183 *
1184 * The JNIEnv pointer returned is only valid for the current thread, and
1185 * thus must be tucked into thread-local storage.
1186 */
1187static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1188{
1189    JavaVMAttachArgs args;
1190    JavaVM* vm;
1191    jint result;
1192
1193    vm = AndroidRuntime::getJavaVM();
1194    assert(vm != NULL);
1195
1196    args.version = JNI_VERSION_1_4;
1197    args.name = (char*) threadName;
1198    args.group = NULL;
1199
1200    result = vm->AttachCurrentThread(pEnv, (void*) &args);
1201    if (result != JNI_OK)
1202        ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1203
1204    return result;
1205}
1206
1207/*
1208 * Detach the current thread from the set visible to the VM.
1209 */
1210static int javaDetachThread(void)
1211{
1212    JavaVM* vm;
1213    jint result;
1214
1215    vm = AndroidRuntime::getJavaVM();
1216    assert(vm != NULL);
1217
1218    result = vm->DetachCurrentThread();
1219    if (result != JNI_OK)
1220        ALOGE("ERROR: thread detach failed\n");
1221    return result;
1222}
1223
1224/*
1225 * When starting a native thread that will be visible from the VM, we
1226 * bounce through this to get the right attach/detach action.
1227 * Note that this function calls free(args)
1228 */
1229/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1230    void* start = ((void**)args)[0];
1231    void* userData = ((void **)args)[1];
1232    char* name = (char*) ((void **)args)[2];        // we own this storage
1233    free(args);
1234    JNIEnv* env;
1235    int result;
1236
1237    /* hook us into the VM */
1238    if (javaAttachThread(name, &env) != JNI_OK)
1239        return -1;
1240
1241    /* start the thread running */
1242    result = (*(android_thread_func_t)start)(userData);
1243
1244    /* unhook us */
1245    javaDetachThread();
1246    free(name);
1247
1248    return result;
1249}
1250
1251/*
1252 * This is invoked from androidCreateThreadEtc() via the callback
1253 * set with androidSetCreateThreadFunc().
1254 *
1255 * We need to create the new thread in such a way that it gets hooked
1256 * into the VM before it really starts executing.
1257 */
1258/*static*/ int AndroidRuntime::javaCreateThreadEtc(
1259                                android_thread_func_t entryFunction,
1260                                void* userData,
1261                                const char* threadName,
1262                                int32_t threadPriority,
1263                                size_t threadStackSize,
1264                                android_thread_id_t* threadId)
1265{
1266    void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1267    int result;
1268
1269    LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1270
1271    args[0] = (void*) entryFunction;
1272    args[1] = userData;
1273    args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1274
1275    result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1276        threadName, threadPriority, threadStackSize, threadId);
1277    return result;
1278}
1279
1280/*
1281 * Create a thread that is visible from the VM.
1282 *
1283 * This is called from elsewhere in the library.
1284 */
1285/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1286    void (*start)(void *), void* arg)
1287{
1288    android_thread_id_t threadId = 0;
1289    javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1290        ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1291    return threadId;
1292}
1293
1294#if 0
1295static void quickTest(void* arg)
1296{
1297    const char* str = (const char*) arg;
1298
1299    printf("In quickTest: %s\n", str);
1300}
1301#endif
1302
1303#ifdef NDEBUG
1304    #define REG_JNI(name)      { name }
1305    struct RegJNIRec {
1306        int (*mProc)(JNIEnv*);
1307    };
1308#else
1309    #define REG_JNI(name)      { name, #name }
1310    struct RegJNIRec {
1311        int (*mProc)(JNIEnv*);
1312        const char* mName;
1313    };
1314#endif
1315
1316typedef void (*RegJAMProc)();
1317
1318static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1319{
1320    for (size_t i = 0; i < count; i++) {
1321        if (array[i].mProc(env) < 0) {
1322#ifndef NDEBUG
1323            ALOGD("----------!!! %s failed to load\n", array[i].mName);
1324#endif
1325            return -1;
1326        }
1327    }
1328    return 0;
1329}
1330
1331static const RegJNIRec gRegJNI[] = {
1332    REG_JNI(register_com_android_internal_os_RuntimeInit),
1333    REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit),
1334    REG_JNI(register_android_os_SystemClock),
1335    REG_JNI(register_android_util_EventLog),
1336    REG_JNI(register_android_util_Log),
1337    REG_JNI(register_android_util_MemoryIntArray),
1338    REG_JNI(register_android_util_PathParser),
1339    REG_JNI(register_android_util_StatsLog),
1340    REG_JNI(register_android_app_admin_SecurityLog),
1341    REG_JNI(register_android_content_AssetManager),
1342    REG_JNI(register_android_content_StringBlock),
1343    REG_JNI(register_android_content_XmlBlock),
1344    REG_JNI(register_android_content_res_ApkAssets),
1345    REG_JNI(register_android_text_AndroidCharacter),
1346    REG_JNI(register_android_text_Hyphenator),
1347    REG_JNI(register_android_text_MeasuredText),
1348    REG_JNI(register_android_text_StaticLayout),
1349    REG_JNI(register_android_view_InputDevice),
1350    REG_JNI(register_android_view_KeyCharacterMap),
1351    REG_JNI(register_android_os_Process),
1352    REG_JNI(register_android_os_SystemProperties),
1353    REG_JNI(register_android_os_Binder),
1354    REG_JNI(register_android_os_Parcel),
1355    REG_JNI(register_android_os_HidlSupport),
1356    REG_JNI(register_android_os_HwBinder),
1357    REG_JNI(register_android_os_HwBlob),
1358    REG_JNI(register_android_os_HwParcel),
1359    REG_JNI(register_android_os_HwRemoteBinder),
1360    REG_JNI(register_android_os_VintfObject),
1361    REG_JNI(register_android_os_VintfRuntimeInfo),
1362    REG_JNI(register_android_nio_utils),
1363    REG_JNI(register_android_graphics_Canvas),
1364    REG_JNI(register_android_graphics_Graphics),
1365    REG_JNI(register_android_view_DisplayEventReceiver),
1366    REG_JNI(register_android_view_RenderNode),
1367    REG_JNI(register_android_view_RenderNodeAnimator),
1368    REG_JNI(register_android_view_DisplayListCanvas),
1369    REG_JNI(register_android_view_HardwareLayer),
1370    REG_JNI(register_android_view_ThreadedRenderer),
1371    REG_JNI(register_android_view_Surface),
1372    REG_JNI(register_android_view_SurfaceControl),
1373    REG_JNI(register_android_view_SurfaceSession),
1374    REG_JNI(register_android_view_TextureView),
1375    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1376    REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1377    REG_JNI(register_com_google_android_gles_jni_GLImpl),
1378    REG_JNI(register_android_opengl_jni_EGL14),
1379    REG_JNI(register_android_opengl_jni_EGLExt),
1380    REG_JNI(register_android_opengl_jni_GLES10),
1381    REG_JNI(register_android_opengl_jni_GLES10Ext),
1382    REG_JNI(register_android_opengl_jni_GLES11),
1383    REG_JNI(register_android_opengl_jni_GLES11Ext),
1384    REG_JNI(register_android_opengl_jni_GLES20),
1385    REG_JNI(register_android_opengl_jni_GLES30),
1386    REG_JNI(register_android_opengl_jni_GLES31),
1387    REG_JNI(register_android_opengl_jni_GLES31Ext),
1388    REG_JNI(register_android_opengl_jni_GLES32),
1389
1390    REG_JNI(register_android_graphics_Bitmap),
1391    REG_JNI(register_android_graphics_BitmapFactory),
1392    REG_JNI(register_android_graphics_BitmapRegionDecoder),
1393    REG_JNI(register_android_graphics_ByteBufferStreamAdaptor),
1394    REG_JNI(register_android_graphics_Camera),
1395    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1396    REG_JNI(register_android_graphics_CanvasProperty),
1397    REG_JNI(register_android_graphics_ColorFilter),
1398    REG_JNI(register_android_graphics_DrawFilter),
1399    REG_JNI(register_android_graphics_FontFamily),
1400    REG_JNI(register_android_graphics_GraphicBuffer),
1401    REG_JNI(register_android_graphics_ImageDecoder),
1402    REG_JNI(register_android_graphics_Interpolator),
1403    REG_JNI(register_android_graphics_MaskFilter),
1404    REG_JNI(register_android_graphics_Matrix),
1405    REG_JNI(register_android_graphics_Movie),
1406    REG_JNI(register_android_graphics_NinePatch),
1407    REG_JNI(register_android_graphics_Paint),
1408    REG_JNI(register_android_graphics_Path),
1409    REG_JNI(register_android_graphics_PathMeasure),
1410    REG_JNI(register_android_graphics_PathEffect),
1411    REG_JNI(register_android_graphics_Picture),
1412    REG_JNI(register_android_graphics_Region),
1413    REG_JNI(register_android_graphics_Shader),
1414    REG_JNI(register_android_graphics_SurfaceTexture),
1415    REG_JNI(register_android_graphics_Typeface),
1416    REG_JNI(register_android_graphics_YuvImage),
1417    REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
1418    REG_JNI(register_android_graphics_drawable_VectorDrawable),
1419    REG_JNI(register_android_graphics_pdf_PdfDocument),
1420    REG_JNI(register_android_graphics_pdf_PdfEditor),
1421    REG_JNI(register_android_graphics_pdf_PdfRenderer),
1422
1423    REG_JNI(register_android_database_CursorWindow),
1424    REG_JNI(register_android_database_SQLiteConnection),
1425    REG_JNI(register_android_database_SQLiteGlobal),
1426    REG_JNI(register_android_database_SQLiteDebug),
1427    REG_JNI(register_android_os_Debug),
1428    REG_JNI(register_android_os_FileObserver),
1429    REG_JNI(register_android_os_GraphicsEnvironment),
1430    REG_JNI(register_android_os_MessageQueue),
1431    REG_JNI(register_android_os_SELinux),
1432    REG_JNI(register_android_os_seccomp),
1433    REG_JNI(register_android_os_Trace),
1434    REG_JNI(register_android_os_UEventObserver),
1435    REG_JNI(register_android_net_LocalSocketImpl),
1436    REG_JNI(register_android_net_NetworkUtils),
1437    REG_JNI(register_android_os_MemoryFile),
1438    REG_JNI(register_android_os_SharedMemory),
1439    REG_JNI(register_com_android_internal_os_ClassLoaderFactory),
1440    REG_JNI(register_com_android_internal_os_Zygote),
1441    REG_JNI(register_com_android_internal_os_ZygoteInit),
1442    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1443    REG_JNI(register_android_hardware_Camera),
1444    REG_JNI(register_android_hardware_camera2_CameraMetadata),
1445    REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1446    REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1447    REG_JNI(register_android_hardware_camera2_DngCreator),
1448    REG_JNI(register_android_hardware_HardwareBuffer),
1449    REG_JNI(register_android_hardware_SensorManager),
1450    REG_JNI(register_android_hardware_SerialPort),
1451    REG_JNI(register_android_hardware_SoundTrigger),
1452    REG_JNI(register_android_hardware_UsbDevice),
1453    REG_JNI(register_android_hardware_UsbDeviceConnection),
1454    REG_JNI(register_android_hardware_UsbRequest),
1455    REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1456    REG_JNI(register_android_media_AudioRecord),
1457    REG_JNI(register_android_media_AudioSystem),
1458    REG_JNI(register_android_media_AudioTrack),
1459    REG_JNI(register_android_media_JetPlayer),
1460    REG_JNI(register_android_media_RemoteDisplay),
1461    REG_JNI(register_android_media_ToneGenerator),
1462
1463    REG_JNI(register_android_opengl_classes),
1464    REG_JNI(register_android_server_NetworkManagementSocketTagger),
1465    REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1466    REG_JNI(register_android_backup_BackupDataInput),
1467    REG_JNI(register_android_backup_BackupDataOutput),
1468    REG_JNI(register_android_backup_FileBackupHelperBase),
1469    REG_JNI(register_android_backup_BackupHelperDispatcher),
1470    REG_JNI(register_android_app_backup_FullBackup),
1471    REG_JNI(register_android_app_Activity),
1472    REG_JNI(register_android_app_ActivityThread),
1473    REG_JNI(register_android_app_NativeActivity),
1474    REG_JNI(register_android_util_jar_StrictJarFile),
1475    REG_JNI(register_android_view_InputChannel),
1476    REG_JNI(register_android_view_InputEventReceiver),
1477    REG_JNI(register_android_view_InputEventSender),
1478    REG_JNI(register_android_view_InputQueue),
1479    REG_JNI(register_android_view_KeyEvent),
1480    REG_JNI(register_android_view_MotionEvent),
1481    REG_JNI(register_android_view_PointerIcon),
1482    REG_JNI(register_android_view_VelocityTracker),
1483
1484    REG_JNI(register_android_content_res_ObbScanner),
1485    REG_JNI(register_android_content_res_Configuration),
1486
1487    REG_JNI(register_android_animation_PropertyValuesHolder),
1488    REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1489    REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1490    REG_JNI(register_com_android_internal_os_FuseAppLoop),
1491};
1492
1493/*
1494 * Register android native functions with the VM.
1495 */
1496/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1497{
1498    ATRACE_NAME("RegisterAndroidNatives");
1499    /*
1500     * This hook causes all future threads created in this process to be
1501     * attached to the JavaVM.  (This needs to go away in favor of JNI
1502     * Attach calls.)
1503     */
1504    androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1505
1506    ALOGV("--- registering native functions ---\n");
1507
1508    /*
1509     * Every "register" function calls one or more things that return
1510     * a local reference (e.g. FindClass).  Because we haven't really
1511     * started the VM yet, they're all getting stored in the base frame
1512     * and never released.  Use Push/Pop to manage the storage.
1513     */
1514    env->PushLocalFrame(200);
1515
1516    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1517        env->PopLocalFrame(NULL);
1518        return -1;
1519    }
1520    env->PopLocalFrame(NULL);
1521
1522    //createJavaThread("fubar", quickTest, (void*) "hello");
1523
1524    return 0;
1525}
1526
1527AndroidRuntime* AndroidRuntime::getRuntime()
1528{
1529    return gCurRuntime;
1530}
1531
1532/**
1533 * Used by surface flinger's DdmConnection to register native methods from
1534 * the framework.
1535 */
1536extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1537    return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1538}
1539}   // namespace android
1540