blob: c24d21dda68c8821ce004288c0d3ca8dadb664bf [file] [log] [blame]
/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define ATRACE_TAG ATRACE_TAG_DALVIK
#define LOG_TAG "AndroidRuntime"
#define LOG_NDEBUG 1
#include <android-base/macros.h>
#include <android-base/parsebool.h>
#include <android-base/properties.h>
#include <android/graphics/jni_runtime.h>
#include <android_runtime/AndroidRuntime.h>
#include <assert.h>
#include <binder/IBinder.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <binder/Parcel.h>
#include <bionic/malloc.h>
#include <cutils/properties.h>
#include <dirent.h>
#include <dlfcn.h>
#include <nativehelper/JNIHelp.h>
#include <nativehelper/JniInvocation.h>
#include <server_configurable_flags/get_flags.h>
#include <signal.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <utils/Log.h>
#include <utils/Trace.h>
#include <utils/misc.h>
#include <utils/threads.h>
#include <string>
#include <vector>
#include "android_util_Binder.h"
#include "jni.h"
using namespace android;
using android::base::GetBoolProperty;
using android::base::GetProperty;
using android::base::ParseBool;
using android::base::ParseBoolResult;
extern int register_android_os_Binder(JNIEnv* env);
extern int register_android_os_Process(JNIEnv* env);
extern int register_android_graphics_GraphicBuffer(JNIEnv* env);
extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
extern int register_android_opengl_jni_EGL14(JNIEnv* env);
extern int register_android_opengl_jni_EGL15(JNIEnv* env);
extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
extern int register_android_opengl_jni_GLES10(JNIEnv* env);
extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
extern int register_android_opengl_jni_GLES11(JNIEnv* env);
extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
extern int register_android_opengl_jni_GLES20(JNIEnv* env);
extern int register_android_opengl_jni_GLES30(JNIEnv* env);
extern int register_android_opengl_jni_GLES31(JNIEnv* env);
extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
extern int register_android_opengl_jni_GLES32(JNIEnv* env);
extern int register_android_hardware_Camera(JNIEnv *env);
extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
extern int register_android_hardware_camera2_impl_CameraExtensionJpegProcessor(JNIEnv* env);
extern int register_android_hardware_camera2_utils_SurfaceUtils(JNIEnv* env);
extern int register_android_hardware_display_DisplayManagerGlobal(JNIEnv* env);
extern int register_android_hardware_HardwareBuffer(JNIEnv *env);
extern int register_android_hardware_OverlayProperties(JNIEnv* env);
extern int register_android_hardware_SensorManager(JNIEnv *env);
extern int register_android_hardware_SerialPort(JNIEnv *env);
extern int register_android_hardware_SyncFence(JNIEnv* env);
extern int register_android_hardware_UsbDevice(JNIEnv *env);
extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
extern int register_android_hardware_UsbRequest(JNIEnv *env);
extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
extern int register_android_media_AudioDeviceAttributes(JNIEnv* env);
extern int register_android_media_AudioEffectDescriptor(JNIEnv *env);
extern int register_android_media_AudioRecord(JNIEnv *env);
extern int register_android_media_AudioSystem(JNIEnv *env);
extern int register_android_media_AudioTrack(JNIEnv *env);
extern int register_android_media_AudioAttributes(JNIEnv *env);
extern int register_android_media_AudioProductStrategies(JNIEnv *env);
extern int register_android_media_AudioVolumeGroups(JNIEnv *env);
extern int register_android_media_AudioVolumeGroupChangeHandler(JNIEnv *env);
extern int register_android_media_MicrophoneInfo(JNIEnv *env);
extern int register_android_media_ToneGenerator(JNIEnv *env);
extern int register_android_media_audio_common_AidlConversion(JNIEnv* env);
extern int register_android_media_midi(JNIEnv *env);
namespace android {
/*
* JNI-based registration functions. Note these are properly contained in
* namespace android.
*/
extern int register_android_app_admin_SecurityLog(JNIEnv* env);
extern int register_android_content_AssetManager(JNIEnv* env);
extern int register_android_util_CharsetUtils(JNIEnv* env);
extern int register_android_util_EventLog(JNIEnv* env);
extern int register_android_util_Log(JNIEnv* env);
extern int register_android_util_MemoryIntArray(JNIEnv* env);
extern int register_android_content_StringBlock(JNIEnv* env);
extern int register_android_content_XmlBlock(JNIEnv* env);
extern int register_android_content_res_ApkAssets(JNIEnv* env);
extern int register_android_content_res_ResourceTimer(JNIEnv* env);
extern int register_android_graphics_BLASTBufferQueue(JNIEnv* env);
extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
extern int register_android_view_InputApplicationHandle(JNIEnv* env);
extern int register_android_view_InputWindowHandle(JNIEnv* env);
extern int register_android_view_Surface(JNIEnv* env);
extern int register_android_view_SurfaceControl(JNIEnv* env);
extern int register_android_view_SurfaceControlHdrLayerInfoListener(JNIEnv* env);
extern int register_android_view_SurfaceSession(JNIEnv* env);
extern int register_android_view_CompositionSamplingListener(JNIEnv* env);
extern int register_android_view_TextureView(JNIEnv* env);
extern int register_android_view_TunnelModeEnabledListener(JNIEnv* env);
extern int register_android_database_CursorWindow(JNIEnv* env);
extern int register_android_database_SQLiteConnection(JNIEnv* env);
extern int register_android_database_SQLiteGlobal(JNIEnv* env);
extern int register_android_database_SQLiteDebug(JNIEnv* env);
extern int register_android_database_SQLiteRawStatement(JNIEnv* env);
extern int register_android_media_MediaMetrics(JNIEnv *env);
extern int register_android_os_Debug(JNIEnv* env);
extern int register_android_os_GraphicsEnvironment(JNIEnv* env);
extern int register_android_os_HidlSupport(JNIEnv* env);
extern int register_android_os_HwBinder(JNIEnv *env);
extern int register_android_os_HwBlob(JNIEnv *env);
extern int register_android_os_HwParcel(JNIEnv *env);
extern int register_android_os_HwRemoteBinder(JNIEnv *env);
extern int register_android_os_NativeHandle(JNIEnv *env);
extern int register_android_os_ServiceManager(JNIEnv *env);
extern int register_android_os_MessageQueue(JNIEnv* env);
extern int register_android_os_Parcel(JNIEnv* env);
extern int register_android_os_PerformanceHintManager(JNIEnv* env);
extern int register_android_os_SELinux(JNIEnv* env);
extern int register_android_os_VintfObject(JNIEnv *env);
extern int register_android_os_VintfRuntimeInfo(JNIEnv *env);
extern int register_android_os_storage_StorageManager(JNIEnv* env);
extern int register_android_os_SystemProperties(JNIEnv *env);
extern int register_android_os_SystemClock(JNIEnv* env);
extern int register_android_os_Trace(JNIEnv* env);
extern int register_android_os_FileObserver(JNIEnv *env);
extern int register_android_os_UEventObserver(JNIEnv* env);
extern int register_android_os_HidlMemory(JNIEnv* env);
extern int register_android_os_MemoryFile(JNIEnv* env);
extern int register_android_os_SharedMemory(JNIEnv* env);
extern int register_android_service_DataLoaderService(JNIEnv* env);
extern int register_android_os_incremental_IncrementalManager(JNIEnv* env);
extern int register_android_net_LocalSocketImpl(JNIEnv* env);
extern int register_android_text_AndroidCharacter(JNIEnv *env);
extern int register_android_text_Hyphenator(JNIEnv *env);
extern int register_android_opengl_classes(JNIEnv *env);
extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
extern int register_android_backup_BackupDataInput(JNIEnv *env);
extern int register_android_backup_BackupDataOutput(JNIEnv *env);
extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
extern int register_android_app_backup_FullBackup(JNIEnv *env);
extern int register_android_app_Activity(JNIEnv *env);
extern int register_android_app_ActivityThread(JNIEnv *env);
extern int register_android_app_NativeActivity(JNIEnv *env);
extern int register_android_media_RemoteDisplay(JNIEnv *env);
extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
extern int register_android_view_InputChannel(JNIEnv* env);
extern int register_android_view_InputDevice(JNIEnv* env);
extern int register_android_view_InputEventReceiver(JNIEnv* env);
extern int register_android_view_InputEventSender(JNIEnv* env);
extern int register_android_view_InputQueue(JNIEnv* env);
extern int register_android_view_KeyCharacterMap(JNIEnv *env);
extern int register_android_view_KeyEvent(JNIEnv* env);
extern int register_android_view_MotionEvent(JNIEnv* env);
extern int register_android_view_MotionPredictor(JNIEnv* env);
extern int register_android_view_PointerIcon(JNIEnv* env);
extern int register_android_view_VelocityTracker(JNIEnv* env);
extern int register_android_view_VerifiedKeyEvent(JNIEnv* env);
extern int register_android_view_VerifiedMotionEvent(JNIEnv* env);
extern int register_android_content_res_ObbScanner(JNIEnv* env);
extern int register_android_content_res_Configuration(JNIEnv* env);
extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
extern int register_android_security_Scrypt(JNIEnv *env);
extern int register_com_android_internal_content_F2fsUtils(JNIEnv* env);
extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
extern int register_com_android_internal_content_om_OverlayConfig(JNIEnv *env);
extern int register_com_android_internal_content_om_OverlayManagerImpl(JNIEnv* env);
extern int register_com_android_internal_net_NetworkUtilsInternal(JNIEnv* env);
extern int register_com_android_internal_os_ClassLoaderFactory(JNIEnv* env);
extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env);
extern int register_com_android_internal_os_KernelAllocationStats(JNIEnv* env);
extern int register_com_android_internal_os_KernelCpuBpfTracking(JNIEnv* env);
extern int register_com_android_internal_os_KernelCpuTotalBpfMapReader(JNIEnv* env);
extern int register_com_android_internal_os_KernelCpuUidBpfMapReader(JNIEnv *env);
extern int register_com_android_internal_os_KernelSingleProcessCpuThreadReader(JNIEnv* env);
extern int register_com_android_internal_os_KernelSingleUidTimeReader(JNIEnv *env);
extern int register_com_android_internal_os_LongArrayMultiStateCounter(JNIEnv* env);
extern int register_com_android_internal_os_LongMultiStateCounter(JNIEnv* env);
extern int register_com_android_internal_os_Zygote(JNIEnv *env);
extern int register_com_android_internal_os_ZygoteCommandBuffer(JNIEnv *env);
extern int register_com_android_internal_os_ZygoteInit(JNIEnv *env);
extern int register_com_android_internal_security_VerityUtils(JNIEnv* env);
extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
extern int register_android_window_WindowInfosListener(JNIEnv* env);
extern int register_android_window_ScreenCapture(JNIEnv* env);
extern int register_jni_common(JNIEnv* env);
// Namespace for Android Runtime flags applied during boot time.
static const char* RUNTIME_NATIVE_BOOT_NAMESPACE = "runtime_native_boot";
// Feature flag name to enable/disable generational garbage collection in ART's
// Concurrent Copying (CC) garbage collector.
static const char* ENABLE_GENERATIONAL_CC = "enable_generational_cc";
// Runtime option enabling generational garbage collection in ART's Concurrent
// Copying (CC) garbage collector.
static const char* kGenerationalCCRuntimeOption = "-Xgc:generational_cc";
// Runtime option disabling generational garbage collection in ART's Concurrent
// Copying (CC) garbage collector.
static const char* kNoGenerationalCCRuntimeOption = "-Xgc:nogenerational_cc";
// Phenotype property name for enabling profiling the boot class path.
static const char* PROFILE_BOOT_CLASS_PATH = "profilebootclasspath";
// Feature flag name for running the JIT in Zygote experiment, b/119800099.
// TODO: Rename the server-level flag or remove.
static const char* ENABLE_JITZYGOTE_IMAGE = "enable_apex_image";
// Flag to pass to the runtime when using the JIT Zygote image.
static const char* kJitZygoteImageOption = "-Xforcejitzygote";
// Feature flag name for disabling lock profiling.
static const char* DISABLE_LOCK_PROFILING = "disable_lock_profiling";
// Runtime option disabling lock profiling.
static const char* kLockProfThresholdRuntimeOption = "-Xlockprofthreshold:0";
static AndroidRuntime* gCurRuntime = NULL;
/*
* Code written in the Java Programming Language calls here from main().
*/
static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
{
gCurRuntime->onStarted();
}
static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
{
gCurRuntime->onZygoteInit();
}
static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
jobject clazz, jboolean exitWithoutCleanup)
{
gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
}
/*
* JNI registration.
*/
int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
{
const JNINativeMethod methods[] = {
{"nativeFinishInit", "()V",
(void*)com_android_internal_os_RuntimeInit_nativeFinishInit},
{"nativeSetExitWithoutCleanup", "(Z)V",
(void*)com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup},
};
return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
methods, NELEM(methods));
}
int register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env)
{
const JNINativeMethod methods[] = {
{ "nativeZygoteInit", "()V",
(void*) com_android_internal_os_ZygoteInit_nativeZygoteInit },
};
return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit",
methods, NELEM(methods));
}
// ----------------------------------------------------------------------
/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
mExitWithoutCleanup(false),
mArgBlockStart(argBlockStart),
mArgBlockLength(argBlockLength)
{
init_android_graphics();
// Pre-allocate enough space to hold a fair number of options.
mOptions.setCapacity(20);
assert(gCurRuntime == NULL); // one per process
gCurRuntime = this;
}
AndroidRuntime::~AndroidRuntime()
{
}
/*
* Register native methods using JNI.
*/
/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
const char* className, const JNINativeMethod* gMethods, int numMethods)
{
return jniRegisterNativeMethods(env, className, gMethods, numMethods);
}
void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
// Set the kernel's task name, for as much of the name as we can fit.
// The kernel's TASK_COMM_LEN minus one for the terminating NUL == 15.
if (setProcName) {
int len = strlen(argv0);
if (len < 15) {
pthread_setname_np(pthread_self(), argv0);
} else {
pthread_setname_np(pthread_self(), argv0 + len - 15);
}
}
// Directly change the memory pointed to by argv[0].
memset(mArgBlockStart, 0, mArgBlockLength);
strlcpy(mArgBlockStart, argv0, mArgBlockLength);
// Let bionic know that we just did that, because __progname points
// into argv[0] (https://issuetracker.google.com/152893281).
setprogname(mArgBlockStart);
}
status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
const Vector<String8>& args)
{
JNIEnv* env;
jmethodID methodId;
ALOGD("Calling main entry %s", className.c_str());
env = getJNIEnv();
if (clazz == NULL || env == NULL) {
return UNKNOWN_ERROR;
}
methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
if (methodId == NULL) {
ALOGE("ERROR: could not find method %s.main(String[])\n", className.c_str());
return UNKNOWN_ERROR;
}
/*
* We want to call main() with a String array with our arguments in it.
* Create an array and populate it.
*/
jclass stringClass;
jobjectArray strArray;
const size_t numArgs = args.size();
stringClass = env->FindClass("java/lang/String");
strArray = env->NewObjectArray(numArgs, stringClass, NULL);
for (size_t i = 0; i < numArgs; i++) {
jstring argStr = env->NewStringUTF(args[i].c_str());
env->SetObjectArrayElement(strArray, i, argStr);
}
env->CallStaticVoidMethod(clazz, methodId, strArray);
return NO_ERROR;
}
/*
* The VM calls this through the "exit" hook.
*/
static void runtime_exit(int code)
{
gCurRuntime->exit(code);
}
/*
* The VM calls this through the "vfprintf" hook.
*
* We ignore "fp" and just write the results to the log file.
*/
static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
{
LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
}
/**
* The VM calls this when mutex contention debugging is enabled to
* determine whether or not the blocked thread was a "sensitive thread"
* for user responsiveness/smoothess.
*
* Our policy for this is whether or not we're tracing any StrictMode
* events on this thread (which we might've inherited via Binder calls
* into us)
*/
static bool runtime_isSensitiveThread() {
IPCThreadState* state = IPCThreadState::selfOrNull();
return state && state->getStrictModePolicy() != 0;
}
static int hasDir(const char* dir)
{
struct stat s;
int res = stat(dir, &s);
if (res == 0) {
return S_ISDIR(s.st_mode);
}
return 0;
}
static bool hasFile(const char* file) {
struct stat s;
int res = stat(file, &s);
if (res == 0) {
return S_ISREG(s.st_mode);
}
return false;
}
/*
* Read the persistent locale. Inspects the following system properties
* (in order) and returns the first non-empty property in the list :
*
* (1) persist.sys.locale
* (2) persist.sys.language/country/localevar (country and localevar are
* inspected iff. language is non-empty.
* (3) ro.product.locale
* (4) ro.product.locale.language/region
*
* Note that we need to inspect persist.sys.language/country/localevar to
* preserve language settings for devices that are upgrading from Lollipop
* to M. The same goes for ro.product.locale.language/region as well.
*/
const std::string readLocale()
{
const std::string locale = GetProperty("persist.sys.locale", "");
if (!locale.empty()) {
return locale;
}
const std::string language = GetProperty("persist.sys.language", "");
if (!language.empty()) {
const std::string country = GetProperty("persist.sys.country", "");
const std::string variant = GetProperty("persist.sys.localevar", "");
std::string out = language;
if (!country.empty()) {
out = out + "-" + country;
}
if (!variant.empty()) {
out = out + "-" + variant;
}
return out;
}
const std::string productLocale = GetProperty("ro.product.locale", "");
if (!productLocale.empty()) {
return productLocale;
}
// If persist.sys.locale and ro.product.locale are missing,
// construct a locale value from the individual locale components.
const std::string productLanguage = GetProperty("ro.product.locale.language", "en");
const std::string productRegion = GetProperty("ro.product.locale.region", "US");
return productLanguage + "-" + productRegion;
}
void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
{
JavaVMOption opt;
opt.optionString = optionString;
opt.extraInfo = extraInfo;
mOptions.add(opt);
}
/*
* Parse a property containing space-separated options that should be
* passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
*
* This will cut up "extraOptsBuf" as we chop it into individual options.
*
* If "quotingArg" is non-null, it is passed before each extra option in mOptions.
*
* Adds the strings, if any, to mOptions.
*/
void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
{
char* start = extraOptsBuf;
char* end = NULL;
while (*start != '\0') {
while (*start == ' ') /* skip leading whitespace */
start++;
if (*start == '\0') /* was trailing ws, bail */
break;
end = start+1;
while (*end != ' ' && *end != '\0') /* find end of token */
end++;
if (*end == ' ')
*end++ = '\0'; /* mark end, advance to indicate more */
if (quotingArg != NULL) {
addOption(quotingArg);
}
addOption(start);
start = end;
}
}
/*
* Reads a "property" into "buffer" with a default of "defaultArg". If
* the property is non-empty, it is treated as a runtime option such
* as "-Xmx32m".
*
* The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
*
* If an argument is found, it is added to mOptions.
*
* If an option is found, it is added to mOptions and true is
* returned. Otherwise false is returned.
*/
bool AndroidRuntime::parseRuntimeOption(const char* property,
char* buffer,
const char* runtimeArg,
const char* defaultArg)
{
strcpy(buffer, runtimeArg);
size_t runtimeArgLen = strlen(runtimeArg);
property_get(property, buffer+runtimeArgLen, defaultArg);
if (buffer[runtimeArgLen] == '\0') {
return false;
}
addOption(buffer);
return true;
}
/*
* Reads a "property" into "buffer". If the property is non-empty, it
* is treated as a dex2oat compiler option that should be
* passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified".
*
* The "compilerArg" is a prefix for the option such as "--compiler-filter=".
*
* The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
*
* If an option is found, it is added to mOptions and true is
* returned. Otherwise false is returned.
*/
bool AndroidRuntime::parseCompilerOption(const char* property,
char* buffer,
const char* compilerArg,
const char* quotingArg)
{
strcpy(buffer, compilerArg);
size_t compilerArgLen = strlen(compilerArg);
property_get(property, buffer+compilerArgLen, "");
if (buffer[compilerArgLen] == '\0') {
return false;
}
addOption(quotingArg);
addOption(buffer);
return true;
}
/*
* Reads a "property" into "buffer". If the property is non-empty, it
* is treated as a dex2oat compiler runtime option that should be
* passed as a quoted option, e.g. "-Ximage-compiler-option
* --runtime-arg -Ximage-compiler-option -Xmx32m".
*
* The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
*
* The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
*
* If an option is found, it is added to mOptions and true is
* returned. Otherwise false is returned.
*/
bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
char* buffer,
const char* runtimeArg,
const char* quotingArg)
{
strcpy(buffer, runtimeArg);
size_t runtimeArgLen = strlen(runtimeArg);
property_get(property, buffer+runtimeArgLen, "");
if (buffer[runtimeArgLen] == '\0') {
return false;
}
addOption(quotingArg);
addOption("--runtime-arg");
addOption(quotingArg);
addOption(buffer);
return true;
}
/*
* Start the Dalvik Virtual Machine.
*
* Various arguments, most determined by system properties, are passed in.
* The "mOptions" vector is updated.
*
* CAUTION: when adding options in here, be careful not to put the
* char buffer inside a nested scope. Adding the buffer to the
* options using mOptions.add() does not copy the buffer, so if the
* buffer goes out of scope the option may be overwritten. It's best
* to put the buffer at the top of the function so that it is more
* unlikely that someone will surround it in a scope at a later time
* and thus introduce a bug.
*
* Returns 0 on success.
*/
int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote, bool primary_zygote)
{
JavaVMInitArgs initArgs;
char propBuf[PROPERTY_VALUE_MAX];
char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
char jitpthreadpriorityOptsBuf[sizeof("-Xjitpthreadpriority:")-1 + PROPERTY_VALUE_MAX];
char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX];
char saveResolvedClassesDelayMsOptsBuf[
sizeof("-Xps-save-resolved-classes-delay-ms:")-1 + PROPERTY_VALUE_MAX];
char profileMinSavePeriodOptsBuf[sizeof("-Xps-min-save-period-ms:")-1 + PROPERTY_VALUE_MAX];
char profileMinFirstSaveOptsBuf[sizeof("-Xps-min-first-save-ms:") - 1 + PROPERTY_VALUE_MAX];
char madviseWillNeedFileSizeVdex[
sizeof("-XMadviseWillNeedVdexFileSize:")-1 + PROPERTY_VALUE_MAX];
char madviseWillNeedFileSizeOdex[
sizeof("-XMadviseWillNeedOdexFileSize:")-1 + PROPERTY_VALUE_MAX];
char madviseWillNeedFileSizeArt[
sizeof("-XMadviseWillNeedArtFileSize:")-1 + PROPERTY_VALUE_MAX];
char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
char foregroundHeapGrowthMultiplierOptsBuf[
sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX];
char finalizerTimeoutMsOptsBuf[sizeof("-XX:FinalizerTimeoutMs=")-1 + PROPERTY_VALUE_MAX];
char threadSuspendTimeoutOptsBuf[sizeof("-XX:ThreadSuspendTimeout=")-1 + PROPERTY_VALUE_MAX];
char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
char dex2oatCpuSetBuf[sizeof("--cpu-set=")-1 + PROPERTY_VALUE_MAX];
char dex2oatCpuSetImageBuf[sizeof("--cpu-set=")-1 + PROPERTY_VALUE_MAX];
char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
char extraOptsBuf[PROPERTY_VALUE_MAX];
char perfettoHprofOptBuf[sizeof("-XX:PerfettoHprof=") + PROPERTY_VALUE_MAX];
char perfettoJavaHeapStackOptBuf[
sizeof("-XX:PerfettoJavaHeapStackProf=") + PROPERTY_VALUE_MAX];
enum {
kEMDefault,
kEMIntPortable,
kEMIntFast,
kEMJitCompiler,
} executionMode = kEMDefault;
char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
char corePlatformApiPolicyBuf[sizeof("-Xcore-platform-api-policy:") + PROPERTY_VALUE_MAX];
char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
std::string fingerprintBuf;
char javaZygoteForkLoopBuf[sizeof("-XX:ForceJavaZygoteForkLoop=") + PROPERTY_VALUE_MAX];
char jdwpProviderBuf[sizeof("-XjdwpProvider:") - 1 + PROPERTY_VALUE_MAX];
char opaqueJniIds[sizeof("-Xopaque-jni-ids:") - 1 + PROPERTY_VALUE_MAX];
char bootImageBuf[sizeof("-Ximage:") - 1 + PROPERTY_VALUE_MAX];
// Read if we are using the profile configuration, do this at the start since the last ART args
// take precedence.
std::string profile_boot_class_path_flag =
server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
PROFILE_BOOT_CLASS_PATH,
/*default_value=*/"");
bool profile_boot_class_path;
switch (ParseBool(profile_boot_class_path_flag)) {
case ParseBoolResult::kError:
// Default to the system property.
profile_boot_class_path =
GetBoolProperty("dalvik.vm.profilebootclasspath", /*default_value=*/false);
break;
case ParseBoolResult::kTrue:
profile_boot_class_path = true;
break;
case ParseBoolResult::kFalse:
profile_boot_class_path = false;
break;
}
if (profile_boot_class_path) {
addOption("-Xcompiler-option");
addOption("--count-hotness-in-compiled-code");
addOption("-Xps-profile-boot-class-path");
addOption("-Xps-profile-aot-code");
addOption("-Xjitsaveprofilinginfo");
}
std::string use_jitzygote_image_flag =
server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
ENABLE_JITZYGOTE_IMAGE,
/*default_value=*/"");
// Use the APEX boot image for boot class path profiling to get JIT samples on BCP methods.
// Also use the APEX boot image if it's explicitly enabled via configuration flag.
const bool use_apex_image = profile_boot_class_path || (use_jitzygote_image_flag == "true");
if (use_apex_image) {
ALOGI("Using JIT Zygote image: '%s'\n", kJitZygoteImageOption);
addOption(kJitZygoteImageOption);
} else if (parseRuntimeOption("dalvik.vm.boot-image", bootImageBuf, "-Ximage:")) {
ALOGI("Using dalvik.vm.boot-image: '%s'\n", bootImageBuf);
} else {
ALOGI("Using default boot image");
}
std::string disable_lock_profiling =
server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
DISABLE_LOCK_PROFILING,
/*default_value=*/ "");
if (disable_lock_profiling == "true") {
addOption(kLockProfThresholdRuntimeOption);
ALOGI("Disabling lock profiling: '%s'\n", kLockProfThresholdRuntimeOption);
} else {
ALOGI("Leaving lock profiling enabled");
}
const bool checkJni = GetBoolProperty("dalvik.vm.checkjni", false);
if (checkJni) {
ALOGD("CheckJNI is ON");
/* extended JNI checking */
addOption("-Xcheck:jni");
/* with -Xcheck:jni, this provides a JNI function call trace */
//addOption("-verbose:jni");
}
const bool odsignVerificationSuccess = GetBoolProperty("odsign.verification.success", false);
if (!odsignVerificationSuccess) {
addOption("-Xdeny-art-apex-data-files");
}
property_get("dalvik.vm.execution-mode", propBuf, "");
if (strcmp(propBuf, "int:portable") == 0) {
executionMode = kEMIntPortable;
} else if (strcmp(propBuf, "int:fast") == 0) {
executionMode = kEMIntFast;
} else if (strcmp(propBuf, "int:jit") == 0) {
executionMode = kEMJitCompiler;
}
strcpy(jniOptsBuf, "-Xjniopts:");
if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
ALOGI("JNI options: '%s'\n", jniOptsBuf);
}
/* route exit() to our handler */
addOption("exit", (void*) runtime_exit);
/* route fprintf() to our handler */
addOption("vfprintf", (void*) runtime_vfprintf);
/* register the framework-specific "is sensitive thread" hook */
addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
/* enable verbose; standard options are { jni, gc, class } */
//addOption("-verbose:jni");
addOption("-verbose:gc");
//addOption("-verbose:class");
// On Android, we always want to allow loading the PerfettoHprof plugin.
// Even with this option set, we will still only actually load the plugin
// if we are on a userdebug build or the app is debuggable or profileable.
// This is enforced in art/runtime/runtime.cc.
//
// We want to be able to disable this, because this does not work on host,
// and we do not want to enable it in tests.
parseRuntimeOption("dalvik.vm.perfetto_hprof", perfettoHprofOptBuf, "-XX:PerfettoHprof=",
"true");
// Enable PerfettoJavaHeapStackProf in the zygote
parseRuntimeOption("dalvik.vm.perfetto_javaheap", perfettoJavaHeapStackOptBuf,
"-XX:PerfettoJavaHeapStackProf=", "true");
if (primary_zygote) {
addOption("-Xprimaryzygote");
}
/*
* The default starting and maximum size of the heap. Larger
* values should be specified in a product property override.
*/
parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
parseRuntimeOption("dalvik.vm.heaptargetutilization",
heaptargetutilizationOptsBuf,
"-XX:HeapTargetUtilization=");
/* Foreground heap growth multiplier option */
parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier",
foregroundHeapGrowthMultiplierOptsBuf,
"-XX:ForegroundHeapGrowthMultiplier=");
/*
* Finalizer and thread suspend timeouts.
*/
parseRuntimeOption("dalvik.vm.finalizer-timeout-ms",
finalizerTimeoutMsOptsBuf,
"-XX:FinalizerTimeoutMs=");
parseRuntimeOption("dalvik.vm.thread-suspend-timeout-ms",
threadSuspendTimeoutOptsBuf,
"-XX:ThreadSuspendTimeout=");
/*
* JIT related options.
*/
parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
parseRuntimeOption("dalvik.vm.jitpthreadpriority",
jitpthreadpriorityOptsBuf,
"-Xjitpthreadpriority:");
addOption("-Xjitsaveprofilinginfo");
parseRuntimeOption("dalvik.vm.jitprithreadweight",
jitprithreadweightOptBuf,
"-Xjitprithreadweight:");
parseRuntimeOption("dalvik.vm.jittransitionweight", jittransitionweightOptBuf,
"-Xjittransitionweight:");
/*
* Use default platform configuration as limits for madvising,
* when no properties are specified.
*/
parseRuntimeOption("dalvik.vm.madvise.vdexfile.size",
madviseWillNeedFileSizeVdex,
"-XMadviseWillNeedVdexFileSize:");
parseRuntimeOption("dalvik.vm.madvise.odexfile.size",
madviseWillNeedFileSizeOdex,
"-XMadviseWillNeedOdexFileSize:");
parseRuntimeOption("dalvik.vm.madvise.artfile.size",
madviseWillNeedFileSizeArt,
"-XMadviseWillNeedArtFileSize:");
/*
* Profile related options.
*/
parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf,
"-Xps-hot-startup-method-samples:");
parseRuntimeOption("dalvik.vm.ps-resolved-classes-delay-ms", saveResolvedClassesDelayMsOptsBuf,
"-Xps-save-resolved-classes-delay-ms:");
parseRuntimeOption("dalvik.vm.ps-min-save-period-ms", profileMinSavePeriodOptsBuf,
"-Xps-min-save-period-ms:");
parseRuntimeOption("dalvik.vm.ps-min-first-save-ms", profileMinFirstSaveOptsBuf,
"-Xps-min-first-save-ms:");
property_get("ro.config.low_ram", propBuf, "");
if (strcmp(propBuf, "true") == 0) {
addOption("-XX:LowMemoryMode");
}
/*
* Garbage-collection related options.
*/
parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
// If it set, honor the "enable_generational_cc" device configuration;
// otherwise, let the runtime use its default behavior.
std::string enable_generational_cc =
server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
ENABLE_GENERATIONAL_CC,
/*default_value=*/ "");
if (enable_generational_cc == "true") {
addOption(kGenerationalCCRuntimeOption);
} else if (enable_generational_cc == "false") {
addOption(kNoGenerationalCCRuntimeOption);
}
parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
/*
* Enable/disable zygote native fork loop.
*/
parseRuntimeOption("dalvik.vm.force-java-zygote-fork-loop",
javaZygoteForkLoopBuf,
"-XX:ForceJavaZygoteForkLoop=");
/*
* Enable debugging only for apps forked from zygote.
*/
if (zygote) {
// Set the JDWP provider and required arguments. By default let the runtime choose how JDWP is
// implemented. When this is not set the runtime defaults to not allowing JDWP.
addOption("-XjdwpOptions:suspend=n,server=y");
parseRuntimeOption("dalvik.vm.jdwp-provider",
jdwpProviderBuf,
"-XjdwpProvider:",
"default");
}
// Only pass an explicit opaque-jni-ids to apps forked from zygote
if (zygote) {
parseRuntimeOption("dalvik.vm.opaque-jni-ids",
opaqueJniIds,
"-Xopaque-jni-ids:",
"swapable");
}
parseRuntimeOption("dalvik.vm.lockprof.threshold",
lockProfThresholdBuf,
"-Xlockprofthreshold:");
if (executionMode == kEMIntPortable) {
addOption("-Xint:portable");
} else if (executionMode == kEMIntFast) {
addOption("-Xint:fast");
} else if (executionMode == kEMJitCompiler) {
addOption("-Xint:jit");
}
// Extra options for JIT.
parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
"--compiler-filter=", "-Xcompiler-option");
parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
parseCompilerOption("dalvik.vm.dex2oat-cpu-set", dex2oatCpuSetBuf, "--cpu-set=",
"-Xcompiler-option");
// Copy the variant.
sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", ABI_STRING);
parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
"--instruction-set-variant=", "-Xcompiler-option");
// Copy the features.
sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", ABI_STRING);
parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
"--instruction-set-features=", "-Xcompiler-option");
/*
* When running with debug.generate-debug-info, add --generate-debug-info to the compiler
* options so that both JITted code and the boot image, if it is compiled on device, will
* include native debugging information.
*/
property_get("debug.generate-debug-info", propBuf, "");
bool generate_debug_info = (strcmp(propBuf, "true") == 0);
if (generate_debug_info) {
addOption("-Xcompiler-option");
addOption("--generate-debug-info");
}
// The mini-debug-info makes it possible to backtrace through compiled code.
bool generate_mini_debug_info = property_get_bool("dalvik.vm.minidebuginfo", 0);
if (generate_mini_debug_info) {
addOption("-Xcompiler-option");
addOption("--generate-mini-debug-info");
}
property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
/* extra options; parse this late so it overrides others */
property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
parseExtraOpts(extraOptsBuf, NULL);
// Extra options for boot image generation.
parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
"-Xms", "-Ximage-compiler-option");
parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
"-Xmx", "-Ximage-compiler-option");
parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
"--compiler-filter=", "-Ximage-compiler-option");
// If there is a dirty-image-objects file, push it.
if (hasFile("/system/etc/dirty-image-objects")) {
addOption("-Ximage-compiler-option");
addOption("--dirty-image-objects=/system/etc/dirty-image-objects");
}
parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
"-Ximage-compiler-option");
parseCompilerOption("dalvik.vm.image-dex2oat-cpu-set", dex2oatCpuSetImageBuf, "--cpu-set=",
"-Ximage-compiler-option");
// The runtime may compile a boot image, when necessary, not using installd. Thus, we need
// to pass the instruction-set-features/variant as an image-compiler-option.
// Note: it is OK to reuse the buffer, as the values are exactly the same between
// * compiler-option, used for runtime compilation (DexClassLoader)
// * image-compiler-option, used for boot-image compilation on device
parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
"--instruction-set-variant=", "-Ximage-compiler-option");
parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
"--instruction-set-features=", "-Ximage-compiler-option");
if (generate_debug_info) {
addOption("-Ximage-compiler-option");
addOption("--generate-debug-info");
}
if (generate_mini_debug_info) {
addOption("-Ximage-compiler-option");
addOption("--generate-mini-debug-info");
}
property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
/* Set the properties for locale */
{
strcpy(localeOption, "-Duser.locale=");
const std::string locale = readLocale();
strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
addOption(localeOption);
}
// Trace files are stored in /data/misc/trace which is writable only in debug mode.
property_get("ro.debuggable", propBuf, "0");
if (strcmp(propBuf, "1") == 0) {
property_get("dalvik.vm.method-trace", propBuf, "false");
if (strcmp(propBuf, "true") == 0) {
addOption("-Xmethod-trace");
parseRuntimeOption("dalvik.vm.method-trace-file",
methodTraceFileBuf,
"-Xmethod-trace-file:");
parseRuntimeOption("dalvik.vm.method-trace-file-siz",
methodTraceFileSizeBuf,
"-Xmethod-trace-file-size:");
property_get("dalvik.vm.method-trace-stream", propBuf, "false");
if (strcmp(propBuf, "true") == 0) {
addOption("-Xmethod-trace-stream");
}
}
}
// Native bridge library. "0" means that native bridge is disabled.
//
// Note: bridging is only enabled for the zygote. Other runs of
// app_process may not have the permissions to mount etc.
property_get("ro.dalvik.vm.native.bridge", propBuf, "");
if (propBuf[0] == '\0') {
ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
} else if (zygote && strcmp(propBuf, "0") != 0) {
snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
"-XX:NativeBridge=%s", propBuf);
addOption(nativeBridgeLibrary);
}
#if defined(__LP64__)
const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
#else
const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
#endif // defined(__LP64__)
property_get(cpu_abilist_property_name, propBuf, "");
if (propBuf[0] == '\0') {
ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
return -1;
}
snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
addOption(cpuAbiListBuf);
// Dalvik-cache pruning counter.
parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
"-Xzygote-max-boot-retry=");
// If set, the property below can be used to enable core platform API violation reporting.
property_get("persist.debug.dalvik.vm.core_platform_api_policy", propBuf, "");
if (propBuf[0] != '\0') {
snprintf(corePlatformApiPolicyBuf,
sizeof(corePlatformApiPolicyBuf),
"-Xcore-platform-api-policy:%s",
propBuf);
addOption(corePlatformApiPolicyBuf);
}
/*
* Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
* contain the fingerprint and can be parsed.
* Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot
* be used here.
* Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions.
*/
std::string fingerprint = GetProperty("ro.build.fingerprint", "");
if (!fingerprint.empty()) {
fingerprintBuf = "-Xfingerprint:" + fingerprint;
addOption(fingerprintBuf.c_str());
}
initArgs.version = JNI_VERSION_1_4;
initArgs.options = mOptions.editArray();
initArgs.nOptions = mOptions.size();
initArgs.ignoreUnrecognized = JNI_FALSE;
/*
* Initialize the VM.
*
* The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
* If this call succeeds, the VM is ready, and we can start issuing
* JNI calls.
*/
if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
ALOGE("JNI_CreateJavaVM failed\n");
return -1;
}
return 0;
}
char* AndroidRuntime::toSlashClassName(const char* className)
{
char* result = strdup(className);
for (char* cp = result; *cp != '\0'; cp++) {
if (*cp == '.') {
*cp = '/';
}
}
return result;
}
/** Create a Java string from an ASCII or Latin-1 string */
jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
if (!bytes) return NULL;
int length = strlen(bytes);
jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
if (!buffer) return NULL;
jchar* chp = buffer;
for (int i = 0; i < length; i++) {
*chp++ = *bytes++;
}
return env->NewString(buffer, length);
}
/*
* Start the Android runtime. This involves starting the virtual machine
* and calling the "static void main(String[] args)" method in the class
* named by "className".
*
* Passes the main function two arguments, the class name and the specified
* options string.
*/
void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
{
ALOGD(">>>>>> START %s uid %d <<<<<<\n",
className != NULL ? className : "(unknown)", getuid());
static const String8 startSystemServer("start-system-server");
// Whether this is the primary zygote, meaning the zygote which will fork system server.
bool primary_zygote = false;
/*
* 'startSystemServer == true' means runtime is obsolete and not run from
* init.rc anymore, so we print out the boot start event here.
*/
for (size_t i = 0; i < options.size(); ++i) {
if (options[i] == startSystemServer) {
primary_zygote = true;
/* track our progress through the boot sequence */
const int LOG_BOOT_PROGRESS_START = 3000;
LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
}
}
const char* rootDir = getenv("ANDROID_ROOT");
if (rootDir == NULL) {
rootDir = "/system";
if (!hasDir("/system")) {
LOG_FATAL("No root directory specified, and /system does not exist.");
return;
}
setenv("ANDROID_ROOT", rootDir, 1);
}
const char* artRootDir = getenv("ANDROID_ART_ROOT");
if (artRootDir == NULL) {
LOG_FATAL("No ART directory specified with ANDROID_ART_ROOT environment variable.");
return;
}
const char* i18nRootDir = getenv("ANDROID_I18N_ROOT");
if (i18nRootDir == NULL) {
LOG_FATAL("No runtime directory specified with ANDROID_I18N_ROOT environment variable.");
return;
}
const char* tzdataRootDir = getenv("ANDROID_TZDATA_ROOT");
if (tzdataRootDir == NULL) {
LOG_FATAL("No tz data directory specified with ANDROID_TZDATA_ROOT environment variable.");
return;
}
//const char* kernelHack = getenv("LD_ASSUME_KERNEL");
//ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
/* start the virtual machine */
JniInvocation jni_invocation;
jni_invocation.Init(NULL);
JNIEnv* env;
if (startVm(&mJavaVM, &env, zygote, primary_zygote) != 0) {
return;
}
onVmCreated(env);
/*
* Register android functions.
*/
if (startReg(env) < 0) {
ALOGE("Unable to register all android natives\n");
return;
}
/*
* We want to call main() with a String array with arguments in it.
* At present we have two arguments, the class name and an option string.
* Create an array to hold them.
*/
jclass stringClass;
jobjectArray strArray;
jstring classNameStr;
stringClass = env->FindClass("java/lang/String");
assert(stringClass != NULL);
strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
assert(strArray != NULL);
classNameStr = env->NewStringUTF(className);
assert(classNameStr != NULL);
env->SetObjectArrayElement(strArray, 0, classNameStr);
for (size_t i = 0; i < options.size(); ++i) {
jstring optionsStr = env->NewStringUTF(options.itemAt(i).c_str());
assert(optionsStr != NULL);
env->SetObjectArrayElement(strArray, i + 1, optionsStr);
}
/*
* Start VM. This thread becomes the main thread of the VM, and will
* not return until the VM exits.
*/
char* slashClassName = toSlashClassName(className != NULL ? className : "");
jclass startClass = env->FindClass(slashClassName);
if (startClass == NULL) {
ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
/* keep going */
} else {
jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
"([Ljava/lang/String;)V");
if (startMeth == NULL) {
ALOGE("JavaVM unable to find main() in '%s'\n", className);
/* keep going */
} else {
env->CallStaticVoidMethod(startClass, startMeth, strArray);
#if 0
if (env->ExceptionCheck())
threadExitUncaughtException(env);
#endif
}
}
free(slashClassName);
ALOGD("Shutting down VM\n");
if (mJavaVM->DetachCurrentThread() != JNI_OK)
ALOGW("Warning: unable to detach main thread\n");
if (mJavaVM->DestroyJavaVM() != 0)
ALOGW("Warning: VM did not shut down cleanly\n");
}
void AndroidRuntime::exit(int code)
{
if (mExitWithoutCleanup) {
ALOGI("VM exiting with result code %d, cleanup skipped.", code);
} else {
ALOGI("VM exiting with result code %d.", code);
onExit(code);
}
#ifdef __ANDROID_CLANG_COVERAGE__
// When compiled with coverage, a function is registered with atexit to call
// `__llvm_profile_write_file` when the process exit.
// For Clang code coverage to work, call exit instead of _exit to run hooks
// registered with atexit.
::exit(code);
#else
::_exit(code);
#endif
}
void AndroidRuntime::onVmCreated(JNIEnv* env)
{
// If AndroidRuntime had anything to do here, we'd have done it in 'start'.
}
/*static*/ JavaVM* AndroidRuntime::getJavaVM() {
return AndroidRuntime::mJavaVM;
}
extern "C" JavaVM* AndroidRuntimeGetJavaVM() {
return AndroidRuntime::getJavaVM();
}
/*
* Get the JNIEnv pointer for this thread.
*
* Returns NULL if the slot wasn't allocated or populated.
*/
/*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
{
JNIEnv* env;
JavaVM* vm = AndroidRuntime::getJavaVM();
assert(vm != NULL);
if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
return NULL;
return env;
}
/*
* Makes the current thread visible to the VM.
*
* The JNIEnv pointer returned is only valid for the current thread, and
* thus must be tucked into thread-local storage.
*/
static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
{
JavaVMAttachArgs args;
JavaVM* vm;
jint result;
vm = AndroidRuntime::getJavaVM();
assert(vm != NULL);
args.version = JNI_VERSION_1_4;
args.name = (char*) threadName;
args.group = NULL;
result = vm->AttachCurrentThread(pEnv, (void*) &args);
if (result != JNI_OK)
ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
return result;
}
/*
* Detach the current thread from the set visible to the VM.
*/
static int javaDetachThread(void)
{
JavaVM* vm;
jint result;
vm = AndroidRuntime::getJavaVM();
assert(vm != NULL);
result = vm->DetachCurrentThread();
if (result != JNI_OK)
ALOGE("ERROR: thread detach failed\n");
return result;
}
/*
* When starting a native thread that will be visible from the VM, we
* bounce through this to get the right attach/detach action.
* Note that this function calls free(args)
*/
/*static*/ int AndroidRuntime::javaThreadShell(void* args) {
void* start = ((void**)args)[0];
void* userData = ((void **)args)[1];
char* name = (char*) ((void **)args)[2]; // we own this storage
free(args);
JNIEnv* env;
int result;
/* hook us into the VM */
if (javaAttachThread(name, &env) != JNI_OK)
return -1;
/* start the thread running */
result = (*(android_thread_func_t)start)(userData);
/* unhook us */
javaDetachThread();
free(name);
return result;
}
/*
* This is invoked from androidCreateThreadEtc() via the callback
* set with androidSetCreateThreadFunc().
*
* We need to create the new thread in such a way that it gets hooked
* into the VM before it really starts executing.
*/
/*static*/ int AndroidRuntime::javaCreateThreadEtc(
android_thread_func_t entryFunction,
void* userData,
const char* threadName,
int32_t threadPriority,
size_t threadStackSize,
android_thread_id_t* threadId)
{
void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free
int result;
LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
args[0] = (void*) entryFunction;
args[1] = userData;
args[2] = (void*) strdup(threadName); // javaThreadShell must free
result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
threadName, threadPriority, threadStackSize, threadId);
return result;
}
/*
* Create a thread that is visible from the VM.
*
* This is called from elsewhere in the library.
*/
/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
void (*start)(void *), void* arg)
{
android_thread_id_t threadId = 0;
javaCreateThreadEtc((android_thread_func_t) start, arg, name,
ANDROID_PRIORITY_DEFAULT, 0, &threadId);
return threadId;
}
#if 0
static void quickTest(void* arg)
{
const char* str = (const char*) arg;
printf("In quickTest: %s\n", str);
}
#endif
#ifdef NDEBUG
#define REG_JNI(name) { name }
struct RegJNIRec {
int (*mProc)(JNIEnv*);
};
#else
#define REG_JNI(name) { name, #name }
struct RegJNIRec {
int (*mProc)(JNIEnv*);
const char* mName;
};
#endif
typedef void (*RegJAMProc)();
static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
{
for (size_t i = 0; i < count; i++) {
if (array[i].mProc(env) < 0) {
#ifndef NDEBUG
ALOGD("----------!!! %s failed to load\n", array[i].mName);
#endif
return -1;
}
}
return 0;
}
static const RegJNIRec gRegJNI[] = {
REG_JNI(register_com_android_internal_os_RuntimeInit),
REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit),
REG_JNI(register_android_os_SystemClock),
REG_JNI(register_android_util_CharsetUtils),
REG_JNI(register_android_util_EventLog),
REG_JNI(register_android_util_Log),
REG_JNI(register_android_util_MemoryIntArray),
REG_JNI(register_android_app_admin_SecurityLog),
REG_JNI(register_android_content_AssetManager),
REG_JNI(register_android_content_StringBlock),
REG_JNI(register_android_content_XmlBlock),
REG_JNI(register_android_content_res_ApkAssets),
REG_JNI(register_android_content_res_ResourceTimer),
REG_JNI(register_android_text_AndroidCharacter),
REG_JNI(register_android_text_Hyphenator),
REG_JNI(register_android_view_InputDevice),
REG_JNI(register_android_view_KeyCharacterMap),
REG_JNI(register_android_os_Process),
REG_JNI(register_android_os_SystemProperties),
REG_JNI(register_android_os_Binder),
REG_JNI(register_android_os_Parcel),
REG_JNI(register_android_os_PerformanceHintManager),
REG_JNI(register_android_os_HidlMemory),
REG_JNI(register_android_os_HidlSupport),
REG_JNI(register_android_os_HwBinder),
REG_JNI(register_android_os_HwBlob),
REG_JNI(register_android_os_HwParcel),
REG_JNI(register_android_os_HwRemoteBinder),
REG_JNI(register_android_os_NativeHandle),
REG_JNI(register_android_os_ServiceManager),
REG_JNI(register_android_os_storage_StorageManager),
REG_JNI(register_android_os_VintfObject),
REG_JNI(register_android_os_VintfRuntimeInfo),
REG_JNI(register_android_service_DataLoaderService),
REG_JNI(register_android_view_DisplayEventReceiver),
REG_JNI(register_android_view_Surface),
REG_JNI(register_android_view_SurfaceControl),
REG_JNI(register_android_view_SurfaceControlHdrLayerInfoListener),
REG_JNI(register_android_view_SurfaceSession),
REG_JNI(register_android_view_InputApplicationHandle),
// This must be called after register_android_view_SurfaceControl since it has a dependency
// on the Java SurfaceControl object that references a native resource via static request.
REG_JNI(register_android_view_InputWindowHandle),
REG_JNI(register_android_view_CompositionSamplingListener),
REG_JNI(register_android_view_TextureView),
REG_JNI(register_android_view_TunnelModeEnabledListener),
REG_JNI(register_com_google_android_gles_jni_EGLImpl),
REG_JNI(register_com_google_android_gles_jni_GLImpl),
REG_JNI(register_android_opengl_jni_EGL14),
REG_JNI(register_android_opengl_jni_EGL15),
REG_JNI(register_android_opengl_jni_EGLExt),
REG_JNI(register_android_opengl_jni_GLES10),
REG_JNI(register_android_opengl_jni_GLES10Ext),
REG_JNI(register_android_opengl_jni_GLES11),
REG_JNI(register_android_opengl_jni_GLES11Ext),
REG_JNI(register_android_opengl_jni_GLES20),
REG_JNI(register_android_opengl_jni_GLES30),
REG_JNI(register_android_opengl_jni_GLES31),
REG_JNI(register_android_opengl_jni_GLES31Ext),
REG_JNI(register_android_opengl_jni_GLES32),
REG_JNI(register_android_graphics_classes),
REG_JNI(register_android_graphics_BLASTBufferQueue),
REG_JNI(register_android_graphics_GraphicBuffer),
REG_JNI(register_android_graphics_GraphicsStatsService),
REG_JNI(register_android_graphics_SurfaceTexture),
REG_JNI(register_android_database_CursorWindow),
REG_JNI(register_android_database_SQLiteConnection),
REG_JNI(register_android_database_SQLiteGlobal),
REG_JNI(register_android_database_SQLiteDebug),
REG_JNI(register_android_database_SQLiteRawStatement),
REG_JNI(register_android_os_Debug),
REG_JNI(register_android_os_FileObserver),
REG_JNI(register_android_os_GraphicsEnvironment),
REG_JNI(register_android_os_MessageQueue),
REG_JNI(register_android_os_SELinux),
REG_JNI(register_android_os_Trace),
REG_JNI(register_android_os_UEventObserver),
REG_JNI(register_android_net_LocalSocketImpl),
REG_JNI(register_android_os_MemoryFile),
REG_JNI(register_android_os_SharedMemory),
REG_JNI(register_android_os_incremental_IncrementalManager),
REG_JNI(register_com_android_internal_content_om_OverlayConfig),
REG_JNI(register_com_android_internal_content_om_OverlayManagerImpl),
REG_JNI(register_com_android_internal_net_NetworkUtilsInternal),
REG_JNI(register_com_android_internal_os_ClassLoaderFactory),
REG_JNI(register_com_android_internal_os_LongArrayMultiStateCounter),
REG_JNI(register_com_android_internal_os_LongMultiStateCounter),
REG_JNI(register_com_android_internal_os_Zygote),
REG_JNI(register_com_android_internal_os_ZygoteCommandBuffer),
REG_JNI(register_com_android_internal_os_ZygoteInit),
REG_JNI(register_com_android_internal_security_VerityUtils),
REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
REG_JNI(register_android_hardware_Camera),
REG_JNI(register_android_hardware_camera2_CameraMetadata),
REG_JNI(register_android_hardware_camera2_DngCreator),
REG_JNI(register_android_hardware_camera2_impl_CameraExtensionJpegProcessor),
REG_JNI(register_android_hardware_camera2_utils_SurfaceUtils),
REG_JNI(register_android_hardware_display_DisplayManagerGlobal),
REG_JNI(register_android_hardware_HardwareBuffer),
REG_JNI(register_android_hardware_OverlayProperties),
REG_JNI(register_android_hardware_SensorManager),
REG_JNI(register_android_hardware_SerialPort),
REG_JNI(register_android_hardware_SyncFence),
REG_JNI(register_android_hardware_UsbDevice),
REG_JNI(register_android_hardware_UsbDeviceConnection),
REG_JNI(register_android_hardware_UsbRequest),
REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
REG_JNI(register_android_media_AudioDeviceAttributes),
REG_JNI(register_android_media_AudioEffectDescriptor),
REG_JNI(register_android_media_AudioSystem),
REG_JNI(register_android_media_AudioRecord),
REG_JNI(register_android_media_AudioTrack),
REG_JNI(register_android_media_AudioAttributes),
REG_JNI(register_android_media_AudioProductStrategies),
REG_JNI(register_android_media_AudioVolumeGroups),
REG_JNI(register_android_media_AudioVolumeGroupChangeHandler),
REG_JNI(register_android_media_MediaMetrics),
REG_JNI(register_android_media_MicrophoneInfo),
REG_JNI(register_android_media_RemoteDisplay),
REG_JNI(register_android_media_ToneGenerator),
REG_JNI(register_android_media_audio_common_AidlConversion),
REG_JNI(register_android_media_midi),
REG_JNI(register_android_opengl_classes),
REG_JNI(register_android_ddm_DdmHandleNativeHeap),
REG_JNI(register_android_backup_BackupDataInput),
REG_JNI(register_android_backup_BackupDataOutput),
REG_JNI(register_android_backup_FileBackupHelperBase),
REG_JNI(register_android_backup_BackupHelperDispatcher),
REG_JNI(register_android_app_backup_FullBackup),
REG_JNI(register_android_app_Activity),
REG_JNI(register_android_app_ActivityThread),
REG_JNI(register_android_app_NativeActivity),
REG_JNI(register_android_util_jar_StrictJarFile),
REG_JNI(register_android_view_InputChannel),
REG_JNI(register_android_view_InputEventReceiver),
REG_JNI(register_android_view_InputEventSender),
REG_JNI(register_android_view_InputQueue),
REG_JNI(register_android_view_KeyEvent),
REG_JNI(register_android_view_MotionEvent),
REG_JNI(register_android_view_MotionPredictor),
REG_JNI(register_android_view_PointerIcon),
REG_JNI(register_android_view_VelocityTracker),
REG_JNI(register_android_view_VerifiedKeyEvent),
REG_JNI(register_android_view_VerifiedMotionEvent),
REG_JNI(register_android_content_res_ObbScanner),
REG_JNI(register_android_content_res_Configuration),
REG_JNI(register_android_animation_PropertyValuesHolder),
REG_JNI(register_android_security_Scrypt),
REG_JNI(register_com_android_internal_content_F2fsUtils),
REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
REG_JNI(register_com_android_internal_os_FuseAppLoop),
REG_JNI(register_com_android_internal_os_KernelAllocationStats),
REG_JNI(register_com_android_internal_os_KernelCpuBpfTracking),
REG_JNI(register_com_android_internal_os_KernelCpuTotalBpfMapReader),
REG_JNI(register_com_android_internal_os_KernelCpuUidBpfMapReader),
REG_JNI(register_com_android_internal_os_KernelSingleProcessCpuThreadReader),
REG_JNI(register_com_android_internal_os_KernelSingleUidTimeReader),
REG_JNI(register_android_window_WindowInfosListener),
REG_JNI(register_android_window_ScreenCapture),
REG_JNI(register_jni_common),
};
/*
* Register android native functions with the VM.
*/
/*static*/ int AndroidRuntime::startReg(JNIEnv* env)
{
ATRACE_NAME("RegisterAndroidNatives");
/*
* This hook causes all future threads created in this process to be
* attached to the JavaVM. (This needs to go away in favor of JNI
* Attach calls.)
*/
androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
ALOGV("--- registering native functions ---\n");
/*
* Every "register" function calls one or more things that return
* a local reference (e.g. FindClass). Because we haven't really
* started the VM yet, they're all getting stored in the base frame
* and never released. Use Push/Pop to manage the storage.
*/
env->PushLocalFrame(200);
if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
env->PopLocalFrame(NULL);
return -1;
}
env->PopLocalFrame(NULL);
//createJavaThread("fubar", quickTest, (void*) "hello");
return 0;
}
AndroidRuntime* AndroidRuntime::getRuntime()
{
return gCurRuntime;
}
/**
* Used by surface flinger's DdmConnection to register native methods from
* the framework.
*/
extern "C" jint registerFrameworkNatives(JNIEnv* env) {
return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
}
} // namespace android