jlong rvmStartThread(Env* env, JavaThread* threadObj) {
Env* newEnv = rvmCreateEnv(env->vm);
if (!newEnv) {
rvmThrowOutOfMemoryError(env); // rvmCreateEnv() doesn't throw OutOfMemoryError if allocation fails
return 0;
}
rvmLockThreadsList();
if (threadObj->threadPtr != 0) {
rvmThrowIllegalStateException(env, "thread has already been started");
rvmUnlockThreadsList();
return 0;
}
Thread* thread = allocThread(env);
if (!thread) {
rvmUnlockThreadsList();
return 0;
}
size_t stackSize = (size_t) threadObj->stackSize;
if (stackSize == 0) {
stackSize = THREAD_DEFAULT_STACK_SIZE;
} else if (stackSize < THREAD_MIN_STACK_SIZE) {
stackSize = THREAD_MIN_STACK_SIZE;
}
stackSize += THREAD_SIGNAL_STACK_SIZE;
stackSize = (stackSize + THREAD_STACK_SIZE_MULTIPLE - 1) & ~(THREAD_STACK_SIZE_MULTIPLE - 1);
pthread_attr_t threadAttr;
pthread_attr_init(&threadAttr);
pthread_attr_setdetachstate(&threadAttr, PTHREAD_CREATE_DETACHED);
pthread_attr_setstacksize(&threadAttr, stackSize);
pthread_attr_setguardsize(&threadAttr, THREAD_STACK_GUARD_SIZE);
ThreadEntryPointArgs args = {0};
args.env = newEnv;
args.thread = thread;
args.threadObj = threadObj;
int err = 0;
if ((err = pthread_create(&thread->pThread, &threadAttr, startThreadEntryPoint, &args)) != 0) {
rvmUnlockThreadsList();
rvmThrowInternalErrorErrno(env, err);
return 0;
}
while (thread->status != THREAD_STARTING) {
pthread_cond_wait(&threadStartCond, &threadsLock);
}
DL_PREPEND(threads, thread);
pthread_cond_broadcast(&threadsChangedCond);
thread->status = THREAD_VMWAIT;
pthread_cond_broadcast(&threadStartCond);
rvmUnlockThreadsList();
return PTR_TO_LONG(thread);
}
Env* rvmStartup(Options* options) {
// TODO: Error handling
TRACE("Initializing logging");
if (!rvmInitLog(options)) return NULL;
#if defined(IOS) && (defined(RVM_ARMV7) || defined(RVM_THUMBV7))
// Enable IEEE-754 denormal support.
// Without this the VFP treats numbers that are close to zero as zero itself.
// See http://developer.apple.com/library/ios/#technotes/tn2293/_index.html.
fenv_t fenv;
fegetenv(&fenv);
fenv.__fpscr &= ~__fpscr_flush_to_zero;
fesetenv(&fenv);
#endif
// print PID if it was requested
if(options->printPID) {
pid_t pid = getpid();
if(options->pidFile) {
FILE* f = fopen(options->pidFile, "w");
if (!f) return NULL;
fprintf(f, "%d", pid);
fclose(f);
} else {
fprintf(stderr, "[DEBUG] %s: pid=%d\n", LOG_TAG, pid);
}
}
// setup the TCP channel socket and wait
// for the debugger to connect
if(options->enableHooks) {
if(!rvmHookSetupTCPChannel(options)) return NULL;
if(!rvmHookHandshake(options)) return NULL;
}
TRACE("Initializing GC");
if (!initGC(options)) return NULL;
// Ignore SIGPIPE signals. SIGPIPE interrupts write() calls which we don't
// want. Dalvik does this too in dalvikvm/Main.cpp.
if (!ignoreSignal(SIGPIPE)) return NULL;
// Ignore SIGXFSZ signals. SIGXFSZ is raised when writing beyond the RLIMIT_FSIZE
// of the current process (at least on Darwin) using pwrite().
if (!ignoreSignal(SIGXFSZ)) return NULL;
VM* vm = rvmCreateVM(options);
if (!vm) return NULL;
Env* env = rvmCreateEnv(vm);
if (!env) return NULL;
// TODO: What if we can't allocate Env?
if (!initClasspathEntries(env, options->resourcesPath, options->rawBootclasspath, &options->bootclasspath)) return NULL;
if (!initClasspathEntries(env, options->resourcesPath, options->rawClasspath, &options->classpath)) return NULL;
// Call init on modules
TRACE("Initializing classes");
if (!rvmInitClasses(env)) return NULL;
TRACE("Initializing memory");
if (!rvmInitMemory(env)) return NULL;
TRACE("Initializing methods");
if (!rvmInitMethods(env)) return NULL;
TRACE("Initializing strings");
if (!rvmInitStrings(env)) return NULL;
TRACE("Initializing monitors");
if (!rvmInitMonitors(env)) return NULL;
TRACE("Initializing proxy");
if (!rvmInitProxy(env)) return NULL;
TRACE("Initializing threads");
if (!rvmInitThreads(env)) return NULL;
TRACE("Initializing attributes");
if (!rvmInitAttributes(env)) return NULL;
TRACE("Initializing primitive wrapper classes");
if (!rvmInitPrimitiveWrapperClasses(env)) return NULL;
TRACE("Initializing exceptions");
if (!rvmInitExceptions(env)) return NULL;
TRACE("Initializing signals");
if (!rvmInitSignals(env)) return NULL;
TRACE("Initializing JNI");
if (!rvmInitJNI(env)) return NULL;
// Initialize the RoboVM rt JNI code
// RT_JNI_OnLoad(&vm->javaVM, NULL);
// Initialize the dalvik rt JNI code
TRACE("Initializing dalvik's runtime JNI code");
registerCoreLibrariesJni((JNIEnv*) env);
#ifdef DARWIN
TRACE("Initializing JAR NSURLProtocol");
registerJARURLProtocol();
#endif
TRACE("Creating system ClassLoader");
systemClassLoader = rvmGetSystemClassLoader(env);
if (rvmExceptionOccurred(env)) goto error_system_ClassLoader;
env->currentThread->threadObj->contextClassLoader = systemClassLoader;
TRACE("Initialization done");
env->vm->initialized = TRUE;
// Start Daemons
TRACE("Starting Daemons");
java_lang_Daemons = rvmFindClassUsingLoader(env, "java/lang/Daemons", NULL);
if (!java_lang_Daemons) goto error_daemons;
java_lang_Daemons_start = rvmGetClassMethod(env, java_lang_Daemons, "start", "()V");
if (!java_lang_Daemons_start) goto error_daemons;
rvmCallVoidClassMethod(env, java_lang_Daemons, java_lang_Daemons_start);
if (rvmExceptionCheck(env)) goto error_daemons;
TRACE("Daemons started");
jboolean errorDuringSetup = FALSE;
//If our options has any properties, let's set them before we call our main.
if (options->properties) {
//First, find java.lang.System, which has the setProperty method.
Class* clazz = rvmFindClassUsingLoader(env, "java/lang/System", NULL);
if (clazz) {
//Get the setProperty method.
Method* method = rvmGetClassMethod(env, clazz, "setProperty", "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");
if (method) {
SystemProperty* property = options->properties;
//Go through all of our properties and add each one in turn by calling setProperty.
while (property != NULL) {
Object* key = NULL;
Object* value = NULL;
//The key is not allowed to be an empty string, so don't set it if we don't get a key.
if(property->key && strlen(property->key) > 0) {
key = rvmNewStringUTF(env, property->key, -1);
} else {
FATAL("Cannot have empty key in system property.");
errorDuringSetup = TRUE;
break;
}
if (property->value) {
value = rvmNewStringUTF(env, property->value, -1);
} else {
value = rvmNewStringUTF(env, "", -1);
}
if (key && value) {
rvmCallObjectClassMethod(env, clazz, method, key, value);
} else {
if (!key) {
FATALF("Error creating string from system property key: %s", property->key);
}
if (!value) {
FATALF("Error creating string from system property value: %s", property->value);
}
errorDuringSetup = TRUE;
break;
}
property = property->next; //Advance to the next property.
}
}
}
}
return (errorDuringSetup) ? NULL : env;
error_daemons:
error_system_ClassLoader:
rvmDetachCurrentThread(env->vm, TRUE, FALSE);
return NULL;
}
Env* rvmStartup(Options* options) {
// TODO: Error handling
TRACE("Initializing GC");
if (!initGC(options)) return NULL;
VM* vm = rvmCreateVM(options);
if (!vm) return NULL;
Env* env = rvmCreateEnv(vm);
if (!env) return NULL;
// TODO: What if we can't allocate Env?
if (!initClasspathEntries(env, options->basePath, options->rawBootclasspath, &options->bootclasspath)) return NULL;
if (!initClasspathEntries(env, options->basePath, options->rawClasspath, &options->classpath)) return NULL;
// Call init on modules
TRACE("Initializing logging");
if (!rvmInitLog(env)) return NULL;
TRACE("Initializing classes");
if (!rvmInitClasses(env)) return NULL;
TRACE("Initializing methods");
if (!rvmInitMethods(env)) return NULL;
TRACE("Initializing strings");
if (!rvmInitStrings(env)) return NULL;
TRACE("Initializing monitors");
if (!rvmInitMonitors(env)) return NULL;
TRACE("Initializing threads");
if (!rvmInitThreads(env)) return NULL;
TRACE("Initializing attributes");
if (!rvmInitAttributes(env)) return NULL;
TRACE("Initializing primitive wrapper classes");
if (!rvmInitPrimitiveWrapperClasses(env)) return NULL;
TRACE("Initializing exceptions");
if (!rvmInitExceptions(env)) return NULL;
TRACE("Initializing signals");
if (!rvmInitSignals(env)) return NULL;
TRACE("Initializing memory");
if (!rvmInitMemory(env)) return NULL;
// Initialize the RoboVM rt JNI code
// RT_JNI_OnLoad(&vm->javaVM, NULL);
// Initialize dalvik's JNIHelp code in libnativehelper
TRACE("Initializing dalvik's libnativehelper");
registerJniHelp((JNIEnv*) env);
// Initialize the dalvik rt JNI code
TRACE("Initializing dalvik's runtime JNI code");
registerCoreLibrariesJni((JNIEnv*) env);
TRACE("Creating system ClassLoader");
systemClassLoader = rvmGetSystemClassLoader(env);
if (rvmExceptionOccurred(env)) goto error_system_ClassLoader;
env->currentThread->threadObj->contextClassLoader = systemClassLoader;
TRACE("Initialization done");
// Start Daemons
TRACE("Starting Daemons");
java_lang_Daemons = rvmFindClassUsingLoader(env, "java/lang/Daemons", NULL);
if (!java_lang_Daemons) goto error_daemons;
java_lang_Daemons_start = rvmGetClassMethod(env, java_lang_Daemons, "start", "()V");
if (!java_lang_Daemons_start) goto error_daemons;
rvmCallVoidClassMethod(env, java_lang_Daemons, java_lang_Daemons_start);
if (rvmExceptionCheck(env)) goto error_daemons;
TRACE("Daemons started");
return env;
error_daemons:
error_system_ClassLoader:
rvmDetachCurrentThread(env->vm, TRUE);
return NULL;
}
Env* rvmStartup(Options* options) {
// TODO: Error handling
#if defined(IOS) && (defined(RVM_ARMV7) || defined(RVM_THUMBV7))
// Enable IEEE-754 denormal support.
// Without this the VFP treats numbers that are close to zero as zero itself.
// See http://developer.apple.com/library/ios/#technotes/tn2293/_index.html.
fenv_t fenv;
fegetenv(&fenv);
fenv.__fpscr &= ~__fpscr_flush_to_zero;
fesetenv(&fenv);
#endif
TRACE("Initializing GC");
if (!initGC(options)) return NULL;
// Ignore SIGPIPE signals. SIGPIPE interrupts write() calls which we don't
// want. Dalvik does this too in dalvikvm/Main.cpp.
if (!ignoreSignal(SIGPIPE)) return NULL;
// Ignore SIGXFSZ signals. SIGXFSZ is raised when writing beyond the RLIMIT_FSIZE
// of the current process (at least on Darwin) using pwrite().
if (!ignoreSignal(SIGXFSZ)) return NULL;
VM* vm = rvmCreateVM(options);
if (!vm) return NULL;
Env* env = rvmCreateEnv(vm);
if (!env) return NULL;
// TODO: What if we can't allocate Env?
if (!initClasspathEntries(env, options->basePath, options->rawBootclasspath, &options->bootclasspath)) return NULL;
if (!initClasspathEntries(env, options->basePath, options->rawClasspath, &options->classpath)) return NULL;
// Call init on modules
TRACE("Initializing logging");
if (!rvmInitLog(env)) return NULL;
TRACE("Initializing classes");
if (!rvmInitClasses(env)) return NULL;
TRACE("Initializing memory");
if (!rvmInitMemory(env)) return NULL;
TRACE("Initializing methods");
if (!rvmInitMethods(env)) return NULL;
TRACE("Initializing strings");
if (!rvmInitStrings(env)) return NULL;
TRACE("Initializing monitors");
if (!rvmInitMonitors(env)) return NULL;
TRACE("Initializing proxy");
if (!rvmInitProxy(env)) return NULL;
TRACE("Initializing threads");
if (!rvmInitThreads(env)) return NULL;
TRACE("Initializing attributes");
if (!rvmInitAttributes(env)) return NULL;
TRACE("Initializing primitive wrapper classes");
if (!rvmInitPrimitiveWrapperClasses(env)) return NULL;
TRACE("Initializing exceptions");
if (!rvmInitExceptions(env)) return NULL;
TRACE("Initializing signals");
if (!rvmInitSignals(env)) return NULL;
// Initialize the RoboVM rt JNI code
// RT_JNI_OnLoad(&vm->javaVM, NULL);
// Initialize the dalvik rt JNI code
TRACE("Initializing dalvik's runtime JNI code");
registerCoreLibrariesJni((JNIEnv*) env);
TRACE("Creating system ClassLoader");
systemClassLoader = rvmGetSystemClassLoader(env);
if (rvmExceptionOccurred(env)) goto error_system_ClassLoader;
env->currentThread->threadObj->contextClassLoader = systemClassLoader;
TRACE("Initialization done");
env->vm->initialized = TRUE;
// Start Daemons
TRACE("Starting Daemons");
java_lang_Daemons = rvmFindClassUsingLoader(env, "java/lang/Daemons", NULL);
if (!java_lang_Daemons) goto error_daemons;
java_lang_Daemons_start = rvmGetClassMethod(env, java_lang_Daemons, "start", "()V");
if (!java_lang_Daemons_start) goto error_daemons;
rvmCallVoidClassMethod(env, java_lang_Daemons, java_lang_Daemons_start);
if (rvmExceptionCheck(env)) goto error_daemons;
TRACE("Daemons started");
return env;
error_daemons:
error_system_ClassLoader:
rvmDetachCurrentThread(env->vm, TRUE, FALSE);
return NULL;
}
static jint attachThread(VM* vm, Env** envPtr, char* name, Object* group, jboolean daemon) {
Env* env = *envPtr; // env is NULL if rvmAttachCurrentThread() was called. If non NULL rvmInitThreads() was called.
if (!env) {
// If the thread was already attached there's an Env* associated with the thread.
env = (Env*) pthread_getspecific(tlsEnvKey);
if (env) {
env->attachCount++;
*envPtr = env;
return JNI_OK;
}
}
if (!env) {
env = rvmCreateEnv(vm);
if (!env) goto error;
}
setThreadEnv(env);
if (rvmExceptionOccurred(env)) goto error;
Thread* thread = allocThread(env);
if (!thread) goto error;
thread->stackAddr = getStackAddress();
thread->pThread = pthread_self();
env->currentThread = thread;
rvmChangeThreadStatus(env, thread, THREAD_RUNNING);
JavaThread* threadObj = (JavaThread*) rvmAllocateObject(env, java_lang_Thread);
if (!threadObj) goto error;
rvmLockThreadsList();
if (!initThread(env, thread, threadObj)) {
rvmUnlockThreadsList();
goto error;
}
if (!rvmSetupSignals(env)) {
rvmUnlockThreadsList();
goto error;
}
DL_PREPEND(threads, thread);
pthread_cond_broadcast(&threadsChangedCond);
rvmUnlockThreadsList();
Object* threadName = NULL;
if (name) {
threadName = rvmNewStringUTF(env, name, -1);
if (!threadName) goto error_remove;
}
Method* threadConstructor = rvmGetInstanceMethod2(env, java_lang_Thread, "<init>", "(JLjava/lang/String;Ljava/lang/ThreadGroup;Z)V");
if (!threadConstructor) goto error_remove;
rvmCallNonvirtualVoidInstanceMethod(env, (Object*) threadObj, threadConstructor, PTR_TO_LONG(thread), threadName, group, daemon);
if (rvmExceptionOccurred(env)) goto error_remove;
*envPtr = env;
return JNI_OK;
error_remove:
rvmLockThreadsList();
DL_DELETE(threads, thread);
pthread_cond_broadcast(&threadsChangedCond);
rvmTearDownSignals(env);
rvmUnlockThreadsList();
error:
if (env) env->currentThread = NULL;
clearThreadEnv();
return JNI_ERR;
}
