--- /dev/null
+/* src/vm/initialize.cpp - static class initializer functions
+
+ Copyright (C) 1996-2005, 2006, 2007, 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
+
+ This file is part of CACAO.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+
+*/
+
+
+#include "config.h"
+
+#include <string.h>
+
+#include "vm/types.h"
+
+#include "threads/lock.hpp"
+
+#include "vm/jit/builtin.hpp"
+#include "vm/class.h"
+#include "vm/exceptions.hpp"
+#include "vm/global.h"
+#include "vm/globals.hpp"
+#include "vm/initialize.hpp"
+#include "vm/loader.hpp"
+#include "vm/options.h"
+#include "vm/vm.hpp"
+
+#if defined(ENABLE_STATISTICS)
+# include "vm/statistics.h"
+#endif
+
+#include "vm/jit/asmpart.h"
+
+
+/* private functions **********************************************************/
+
+static bool initialize_class_intern(classinfo *c);
+
+
+/* initialize_init *************************************************************
+
+ Initialize important system classes.
+
+*******************************************************************************/
+
+void initialize_init(void)
+{
+ TRACESUBSYSTEMINITIALIZATION("initialize_init");
+
+#if defined(ENABLE_JAVASE)
+# if defined(WITH_JAVA_RUNTIME_LIBRARY_GNU_CLASSPATH)
+
+ /* Nothing. */
+
+# elif defined(WITH_JAVA_RUNTIME_LIBRARY_OPENJDK)
+
+ if (!initialize_class(class_java_lang_String))
+ vm_abort("initialize_init: Initialization failed: java.lang.String");
+
+ if (!initialize_class(class_java_lang_System))
+ vm_abort("initialize_init: Initialization failed: java.lang.System");
+
+ if (!initialize_class(class_java_lang_ThreadGroup))
+ vm_abort("initialize_init: Initialization failed: java.lang.ThreadGroup");
+
+ if (!initialize_class(class_java_lang_Thread))
+ vm_abort("initialize_init: Initialization failed: java.lang.Thread");
+
+# else
+# error unknown classpath configuration
+# endif
+
+#elif defined(ENABLE_JAVAME_CLDC1_1)
+
+ /* Nothing. */
+
+#else
+# error unknown Java configuration
+#endif
+}
+
+/* initialize_class ************************************************************
+
+ In Java, every class can have a static initialization
+ function. This function has to be called BEFORE calling other
+ methods or accessing static variables.
+
+*******************************************************************************/
+
+bool initialize_class(classinfo *c)
+{
+ bool r;
+
+ if (!makeinitializations)
+ return true;
+
+ LOCK_MONITOR_ENTER(c);
+
+ /* maybe the class is already initalized or the current thread, which can
+ pass the monitor, is currently initalizing this class */
+
+ if (CLASS_IS_OR_ALMOST_INITIALIZED(c)) {
+ LOCK_MONITOR_EXIT(c);
+
+ return true;
+ }
+
+ /* if <clinit> throw an Error before, the class was marked with an
+ error and we have to throw a NoClassDefFoundError */
+
+ if (c->state & CLASS_ERROR) {
+ exceptions_throw_noclassdeffounderror(c->name);
+
+ LOCK_MONITOR_EXIT(c);
+
+ /* ...but return true, this is ok (mauve test) */
+
+ return true;
+ }
+
+ /* this initalizing run begins NOW */
+
+ c->state |= CLASS_INITIALIZING;
+
+ /* call the internal function */
+
+ r = initialize_class_intern(c);
+
+ /* if return value is not NULL everything was ok and the class is
+ initialized */
+
+ if (r)
+ c->state |= CLASS_INITIALIZED;
+
+ /* this initalizing run is done */
+
+ c->state &= ~CLASS_INITIALIZING;
+
+ LOCK_MONITOR_EXIT(c);
+
+ return r;
+}
+
+
+/* initialize_class_intern *****************************************************
+
+ This function MUST NOT be called directly, because of thread
+ <clinit> race conditions.
+
+*******************************************************************************/
+
+static bool initialize_class_intern(classinfo *c)
+{
+ methodinfo *m;
+ java_handle_t *cause;
+ classinfo *clazz;
+
+ /* maybe the class is not already linked */
+
+ if (!(c->state & CLASS_LINKED))
+ if (!link_class(c))
+ return false;
+
+#if defined(ENABLE_STATISTICS)
+ if (opt_stat)
+ count_class_inits++;
+#endif
+
+ /* Initialize super class. */
+
+ if (c->super != NULL) {
+ if (!(c->super->state & CLASS_INITIALIZED)) {
+#if !defined(NDEBUG)
+ if (initverbose)
+ log_message_class_message_class("Initialize super class ",
+ c->super,
+ " from ",
+ c);
+#endif
+
+ if (!initialize_class(c->super))
+ return false;
+ }
+ }
+
+ /* interfaces implemented need not to be initialized (VM Spec 2.17.4) */
+
+ m = class_findmethod(c, utf_clinit, utf_void__void);
+
+ if (m == NULL) {
+#if !defined(NDEBUG)
+ if (initverbose)
+ log_message_class("Class has no static class initializer: ", c);
+#endif
+
+ return true;
+ }
+
+ /* Sun's and IBM's JVM don't care about the static flag */
+/* if (!(m->flags & ACC_STATIC)) { */
+/* log_text("Class initializer is not static!"); */
+
+#if !defined(NDEBUG)
+ if (initverbose)
+ log_message_class("Starting static class initializer for class: ", c);
+#endif
+
+ /* now call the initializer */
+
+ (void) vm_call_method(m, NULL);
+
+ /* we have an exception or error */
+
+ cause = exceptions_get_exception();
+
+ if (cause != NULL) {
+ /* class is NOT initialized and is marked with error */
+
+ c->state |= CLASS_ERROR;
+
+ /* Load java/lang/Exception for the instanceof check. */
+
+ clazz = load_class_bootstrap(utf_java_lang_Exception);
+
+ if (clazz == NULL)
+ return false;
+
+ /* Is this an exception? Yes, than wrap it. */
+
+ if (builtin_instanceof(cause, clazz)) {
+ /* clear exception, because we are calling jit code again */
+
+ exceptions_clear_exception();
+
+ /* wrap the exception */
+
+ exceptions_throw_exceptionininitializererror(cause);
+ }
+
+ return false;
+ }
+
+#if !defined(NDEBUG)
+ if (initverbose)
+ log_message_class("Finished static class initializer for class: ", c);
+#endif
+
+ return true;
+}
+
+
+/*
+ * These are local overrides for various environment variables in Emacs.
+ * Please do not remove this and leave it at the end of the file, where
+ * Emacs will automagically detect them.
+ * ---------------------------------------------------------------------
+ * Local variables:
+ * mode: c
+ * indent-tabs-mode: t
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ */
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