#endif
-/* init_system_exceptions ******************************************************
+/* exceptions_init *************************************************************
- Load and link exceptions used in the system.
+ Initialize the exceptions subsystem.
*******************************************************************************/
-bool exceptions_init(void)
+void exceptions_init(void)
{
#if !(defined(__ARM__) && defined(__LINUX__))
/* On arm-linux the first memory page can't be mmap'ed, as it
if (OFFSET(java_bytearray_t, data) <= EXCEPTION_HARDWARE_LARGEST)
vm_abort("signal_init: array-data offset is less or equal the maximum hardware-exception displacement: %d <= %d", OFFSET(java_bytearray_t, data), EXCEPTION_HARDWARE_LARGEST);
-
- /* java/lang/Throwable */
-
- if (!(class_java_lang_Throwable =
- load_class_bootstrap(utf_java_lang_Throwable)) ||
- !link_class(class_java_lang_Throwable))
- return false;
-
- /* java/lang/Error */
-
- if (!(class_java_lang_Error = load_class_bootstrap(utf_java_lang_Error)) ||
- !link_class(class_java_lang_Error))
- return false;
-
-#if defined(ENABLE_JAVASE)
- /* java/lang/LinkageError */
-
- if (!(class_java_lang_LinkageError =
- load_class_bootstrap(utf_java_lang_LinkageError)) ||
- !link_class(class_java_lang_LinkageError))
- return false;
-#endif
-
- /* java/lang/NoClassDefFoundError */
-
- if (!(class_java_lang_NoClassDefFoundError =
- load_class_bootstrap(utf_java_lang_NoClassDefFoundError)) ||
- !link_class(class_java_lang_NoClassDefFoundError))
- return false;
-
- /* java/lang/OutOfMemoryError */
-
- if (!(class_java_lang_OutOfMemoryError =
- load_class_bootstrap(utf_java_lang_OutOfMemoryError)) ||
- !link_class(class_java_lang_OutOfMemoryError))
- return false;
-
- /* java/lang/VirtualMachineError */
-
- if (!(class_java_lang_VirtualMachineError =
- load_class_bootstrap(utf_java_lang_VirtualMachineError)) ||
- !link_class(class_java_lang_VirtualMachineError))
- return false;
-
-
- /* java/lang/Exception */
-
- if (!(class_java_lang_Exception =
- load_class_bootstrap(utf_java_lang_Exception)) ||
- !link_class(class_java_lang_Exception))
- return false;
-
- /* java/lang/ClassCastException */
-
- if (!(class_java_lang_ClassCastException =
- load_class_bootstrap(utf_java_lang_ClassCastException)) ||
- !link_class(class_java_lang_ClassCastException))
- return false;
-
- /* java/lang/ClassNotFoundException */
-
- if (!(class_java_lang_ClassNotFoundException =
- load_class_bootstrap(utf_java_lang_ClassNotFoundException)) ||
- !link_class(class_java_lang_ClassNotFoundException))
- return false;
-
- /* java/lang/NullPointerException */
-
- if (!(class_java_lang_NullPointerException =
- load_class_bootstrap(utf_java_lang_NullPointerException)) ||
- !link_class(class_java_lang_NullPointerException))
- return false;
-
-
-#if defined(WITH_CLASSPATH_GNU)
- /* java/lang/VMThrowable */
-
- if (!(class_java_lang_VMThrowable =
- load_class_bootstrap(utf_java_lang_VMThrowable)) ||
- !link_class(class_java_lang_VMThrowable))
- return false;
-#endif
-
- return true;
}
java_handle_t *exceptions_get_exception(void)
{
+ java_object_t *o;
java_handle_t *e;
+#if defined(ENABLE_THREADS)
+ threadobject *t;
+
+ t = THREADOBJECT;
+#endif
- /* get the exception */
+ /* Get the exception. */
LLNI_CRITICAL_START;
- e = LLNI_WRAP(*exceptionptr);
+#if defined(ENABLE_THREADS)
+ o = t->_exceptionptr;
+#else
+ o = _no_threads_exceptionptr;
+#endif
+
+ e = LLNI_WRAP(o);
LLNI_CRITICAL_END;
- /* return the exception */
+ /* Return the exception. */
return e;
}
*******************************************************************************/
-void exceptions_set_exception(java_handle_t *o)
+void exceptions_set_exception(java_handle_t *e)
{
- /* set the exception */
+ threadobject *t;
+ java_object_t *o;
+
+#if defined(ENABLE_THREADS)
+ t = THREADOBJECT;
+#else
+ t = NULL;
+#endif
+
+ /* Set the exception. */
LLNI_CRITICAL_START;
- *exceptionptr = LLNI_UNWRAP(o);
+ o = LLNI_UNWRAP(e);
+
+#if !defined(NDEBUG)
+ if (opt_DebugExceptions) {
+ printf("[exceptions_set_exception : t=%p, o=%p, class=",
+ (void *) t, (void *) o);
+ class_print(o->vftbl->class);
+ printf("]\n");
+ }
+#endif
+
+#if defined(ENABLE_THREADS)
+ t->_exceptionptr = o;
+#else
+ _no_threads_exceptionptr = o;
+#endif
LLNI_CRITICAL_END;
}
void exceptions_clear_exception(void)
{
- exceptions_set_exception(NULL);
+ threadobject *t;
+
+#if defined(ENABLE_THREADS)
+ t = THREADOBJECT;
+#else
+ t = NULL;
+#endif
+
+ /* Set the exception. */
+
+#if !defined(NDEBUG)
+ if (opt_DebugExceptions) {
+ printf("[exceptions_clear_exception: t=%p]\n", (void *) t);
+ }
+#endif
+
+#if defined(ENABLE_THREADS)
+ t->_exceptionptr = NULL;
+#else
+ _no_threads_exceptionptr = NULL;
+#endif
}
{
java_handle_t *o;
- /* get the exception */
+ /* Get the exception... */
o = exceptions_get_exception();
- /* and clear the exception */
+ /* ...and clear the exception if it is set. */
- exceptions_clear_exception();
+ if (o != NULL)
+ exceptions_clear_exception();
/* return the exception */
}
-/* exceptions_new_class ********************************************************
+/* exceptions_abort ************************************************************
- Creates an exception object from the given class and initalizes it.
+ Prints exception to be thrown and aborts.
IN:
- class....class pointer
+ classname....class name
+ message......exception message
*******************************************************************************/
-static java_handle_t *exceptions_new_class(classinfo *c)
+static void exceptions_abort(utf *classname, utf *message)
{
- java_handle_t *o;
+ log_println("exception thrown while VM is initializing: ");
- o = native_new_and_init(c);
+ log_start();
+ utf_display_printable_ascii_classname(classname);
- if (o == NULL)
- return exceptions_get_exception();
+ if (message != NULL) {
+ log_print(": ");
+ utf_display_printable_ascii_classname(message);
+ }
- return o;
+ log_finish();
+
+ vm_abort("Aborting...");
}
classinfo *c;
java_handle_t *o;
+ if (vm_initializing)
+ exceptions_abort(classname, NULL);
+
c = load_class_bootstrap(classname);
if (c == NULL)
return exceptions_get_exception();
- o = exceptions_new_class(c);
-
- return o;
-}
-
-
-/* exceptions_throw_class ******************************************************
-
- Creates an exception object from the given class, initalizes and
- throws it.
-
- IN:
- class....class pointer
-
-*******************************************************************************/
-
-static void exceptions_throw_class(classinfo *c)
-{
- java_handle_t *o;
-
- o = exceptions_new_class(c);
+ o = native_new_and_init(c);
if (o == NULL)
- return;
+ return exceptions_get_exception();
- exceptions_set_exception(o);
+ return o;
}
static void exceptions_throw_utf(utf *classname)
{
- classinfo *c;
+ java_handle_t *o;
- c = load_class_bootstrap(classname);
+ o = exceptions_new_utf(classname);
- if (c == NULL)
+ if (o == NULL)
return;
- exceptions_throw_class(c);
+ exceptions_set_exception(o);
}
methodinfo *m;
java_lang_Throwable *object;
+ if (vm_initializing)
+ exceptions_abort(classname, NULL);
+
object = (java_lang_Throwable *) cause;
c = load_class_bootstrap(classname);
java_handle_t *o;
methodinfo *m;
+ if (vm_initializing)
+ exceptions_abort(classname, NULL);
+
c = load_class_bootstrap(classname);
if (c == NULL)
java_lang_String *s;
java_lang_Throwable *object;
+ if (vm_initializing)
+ exceptions_abort(classname, NULL);
+
object = (java_lang_Throwable *) cause;
c = load_class_bootstrap(classname);
java_handle_t *o;
classinfo *c;
+ if (vm_initializing)
+ exceptions_abort(classname, NULL);
+
c = load_class_bootstrap(classname);
if (c == NULL)
}
-/* exceptions_new_class_utf ****************************************************
-
- Creates an exception object of the given class and initalizes it.
-
- IN:
- c..........class pointer
- message....the message as UTF-8 string
-
-*******************************************************************************/
-
-static java_handle_t *exceptions_new_class_utf(classinfo *c, utf *message)
-{
- java_handle_t *o;
- java_handle_t *s;
-
- s = javastring_new(message);
-
- if (s == NULL)
- return exceptions_get_exception();
-
- o = native_new_and_init_string(c, s);
-
- if (o == NULL)
- return exceptions_get_exception();
-
- return o;
-}
-
-
/* exceptions_new_utf_utf ******************************************************
Creates an exception object with the given name and initalizes it
static java_handle_t *exceptions_new_utf_utf(utf *classname, utf *message)
{
classinfo *c;
+ java_handle_t *s;
java_handle_t *o;
+ if (vm_initializing)
+ exceptions_abort(classname, message);
+
c = load_class_bootstrap(classname);
if (c == NULL)
return exceptions_get_exception();
- o = exceptions_new_class_utf(c, message);
-
- return o;
-}
-
-
-/* exceptions_throw_class_utf **************************************************
-
- Creates an exception object of the given class, initalizes and
- throws it with the given utf message.
-
- IN:
- c..........class pointer
- message....the message as an UTF-8
+ s = javastring_new(message);
-*******************************************************************************/
+ if (s == NULL)
+ return exceptions_get_exception();
-static void exceptions_throw_class_utf(classinfo *c, utf *message)
-{
- java_handle_t *o;
+ o = native_new_and_init_string(c, s);
- o = exceptions_new_class_utf(c, message);
+ if (o == NULL)
+ return exceptions_get_exception();
- exceptions_set_exception(o);
+ return o;
}
{
java_handle_t *o;
- o = exceptions_new_class_utf(class_java_lang_Error, message);
+ o = exceptions_new_utf_utf(utf_java_lang_Error, message);
return o;
}
java_object_t *exceptions_asm_new_abstractmethoderror(u1 *sp, u1 *ra)
{
- stackframeinfo sfi;
- java_handle_t *e;
+ stackframeinfo_t sfi;
+ java_handle_t *e;
+ java_object_t *o;
- /* create the stackframeinfo (XPC is equal to RA) */
+ /* Fill and add a stackframeinfo (XPC is equal to RA). */
- stacktrace_create_extern_stackframeinfo(&sfi, NULL, sp, ra, ra);
+ stacktrace_stackframeinfo_add(&sfi, NULL, sp, ra, ra);
/* create the exception */
e = exceptions_new_error(utf_java_lang_AbstractMethodError);
#endif
- /* remove the stackframeinfo */
+ /* Remove the stackframeinfo. */
- stacktrace_remove_stackframeinfo(&sfi);
+ stacktrace_stackframeinfo_remove(&sfi);
- return e;
+ /* unwrap the exception */
+ /* ATTENTION: do the this _after_ the stackframeinfo was removed */
+
+ o = LLNI_UNWRAP(e);
+
+ return o;
}
*******************************************************************************/
void exceptions_throw_classnotfoundexception(utf *name)
-{
- /* we use class here, as this one is rather frequent */
-
- exceptions_throw_class_utf(class_java_lang_ClassNotFoundException, name);
+{
+ exceptions_throw_utf_utf(utf_java_lang_ClassNotFoundException, name);
}
void exceptions_throw_noclassdeffounderror(utf *name)
{
- if (vm_initializing)
- vm_abort("java.lang.NoClassDefFoundError: %s", name->text);
-
- exceptions_throw_class_utf(class_java_lang_NoClassDefFoundError, name);
+ exceptions_throw_utf_utf(utf_java_lang_NoClassDefFoundError, name);
}
void exceptions_throw_linkageerror(const char *message, classinfo *c)
{
- java_handle_t *o;
- char *msg;
- s4 msglen;
+ utf *u;
+ char *msg;
+ int len;
/* calculate exception message length */
- msglen = strlen(message) + 1;
+ len = strlen(message) + 1;
if (c != NULL)
- msglen += utf_bytes(c->name);
+ len += utf_bytes(c->name);
/* allocate memory */
- msg = MNEW(char, msglen);
+ msg = MNEW(char, len);
/* generate message */
- strcpy(msg,message);
+ strcpy(msg, message);
if (c != NULL)
utf_cat_classname(msg, c->name);
- o = native_new_and_init_string(class_java_lang_LinkageError,
- javastring_new_from_utf_string(msg));
+ u = utf_new_char(msg);
/* free memory */
- MFREE(msg, char, msglen);
+ MFREE(msg, char, len);
- if (o == NULL)
- return;
-
- exceptions_set_exception(o);
+ exceptions_throw_utf_utf(utf_java_lang_LinkageError, u);
}
#if defined(ENABLE_JAVASE)
exceptions_throw_utf_utf(utf_java_lang_NoSuchMethodError, u);
#else
- exceptions_throw_class_utf(class_java_lang_Error, u);
+ exceptions_throw_utf_utf(utf_java_lang_Error, u);
#endif
}
void exceptions_throw_outofmemoryerror(void)
{
- exceptions_throw_class(class_java_lang_OutOfMemoryError);
+ exceptions_throw_utf(utf_java_lang_OutOfMemoryError);
}
#if defined(ENABLE_JAVASE)
exceptions_throw_utf_utf(utf_java_lang_UnsatisfiedLinkError, name);
#else
- exceptions_throw_class_utf(class_java_lang_Error, name);
+ exceptions_throw_utf_utf(utf_java_lang_Error, name);
#endif
}
void exceptions_throw_arraystoreexception(void)
{
exceptions_throw_utf(utf_java_lang_ArrayStoreException);
-/* e = native_new_and_init(class_java_lang_ArrayStoreException); */
}
classname = c->name;
- e = exceptions_new_class_utf(class_java_lang_ClassCastException, classname);
+ e = exceptions_new_utf_utf(utf_java_lang_ClassCastException, classname);
return e;
}
{
java_handle_t *o;
- o = exceptions_new_class(class_java_lang_NullPointerException);
+ o = exceptions_new_utf(utf_java_lang_NullPointerException);
return o;
}
void exceptions_throw_nullpointerexception(void)
{
- exceptions_throw_class(class_java_lang_NullPointerException);
+ exceptions_throw_utf(utf_java_lang_NullPointerException);
}
void exceptions_classnotfoundexception_to_noclassdeffounderror(void)
{
+ classinfo *c;
java_handle_t *o;
java_handle_t *cause;
java_lang_Throwable *object;
java_lang_String *s;
- /* get the cause */
+ /* Load java/lang/ClassNotFoundException for the instanceof
+ check. */
+
+ c = load_class_bootstrap(utf_java_lang_ClassNotFoundException);
+
+ if (c == NULL)
+ return;
+
+ /* Get the cause. */
cause = exceptions_get_exception();
- /* convert ClassNotFoundException's to NoClassDefFoundError's */
+ /* Convert ClassNotFoundException's to NoClassDefFoundError's. */
- if (builtin_instanceof(cause, class_java_lang_ClassNotFoundException)) {
+ if (builtin_instanceof(cause, c)) {
/* clear exception, because we are calling jit code again */
exceptions_clear_exception();
*******************************************************************************/
#if defined(ENABLE_JIT)
-u1 *exceptions_handle_exception(java_object_t *xptr, u1 *xpc, u1 *pv, u1 *sp)
+u1 *exceptions_handle_exception(java_object_t *xptro, u1 *xpc, u1 *pv, u1 *sp)
{
- methodinfo *m;
- codeinfo *code;
- s4 issync;
- dseg_exception_entry *ex;
- s4 exceptiontablelength;
- s4 i;
- classref_or_classinfo cr;
- classinfo *c;
+ stackframeinfo_t sfi;
+ java_handle_t *xptr;
+ methodinfo *m;
+ codeinfo *code;
+ exceptiontable_t *et;
+ exceptiontable_entry_t *ete;
+ s4 i;
+ classref_or_classinfo cr;
+ classinfo *c;
#if defined(ENABLE_THREADS)
- java_object_t *o;
+ java_object_t *o;
#endif
+ u1 *result;
#ifdef __S390__
/* Addresses are 31 bit integers */
# define ADDR_MASK(x) (x)
#endif
- xpc = ADDR_MASK(xpc);
+ xptr = LLNI_WRAP(xptro);
+ xpc = ADDR_MASK(xpc);
+
+ /* Fill and add a stackframeinfo (XPC is equal to RA). */
- /* get info from the method header */
+ stacktrace_stackframeinfo_add(&sfi, pv, sp, xpc, xpc);
- code = *((codeinfo **) (pv + CodeinfoPointer));
- issync = *((s4 *) (pv + IsSync));
- ex = (dseg_exception_entry *) (pv + ExTableStart);
- exceptiontablelength = *((s4 *) (pv + ExTableSize));
+ result = NULL;
+
+ /* Get the codeinfo for the current method. */
+
+ code = code_get_codeinfo_for_pv(pv);
/* Get the methodinfo pointer from the codeinfo pointer. For
- asm_vm_call_method the codeinfo pointer is NULL. */
+ asm_vm_call_method the codeinfo pointer is NULL and we simply
+ can return the proper exception handler. */
+
+ if (code == NULL) {
+ result = (u1 *) (uintptr_t) &asm_vm_call_method_exception_handler;
+ goto exceptions_handle_exception_return;
+ }
- m = (code == NULL) ? NULL : code->m;
+ m = code->m;
#if !defined(NDEBUG)
/* print exception trace */
if (opt_TraceExceptions)
- trace_exception(xptr, m, xpc);
+ trace_exception(LLNI_DIRECT(xptr), m, xpc);
# if defined(ENABLE_VMLOG)
vmlog_cacao_throw(xptr);
# endif
#endif
- for (i = 0; i < exceptiontablelength; i++) {
- /* ATTENTION: keep this here, as we need to decrement the
- pointer before the loop executes! */
+ /* Get the exception table. */
- ex--;
+ et = code->exceptiontable;
- /* If the start and end PC is NULL, this means we have the
- special case of asm_vm_call_method. So, just return the
- proper exception handler. */
+ if (et != NULL) {
+ /* Iterate over all exception table entries. */
- if ((ex->startpc == NULL) && (ex->endpc == NULL))
- return (u1 *) (ptrint) &asm_vm_call_method_exception_handler;
+ ete = et->entries;
+ for (i = 0; i < et->length; i++, ete++) {
/* is the xpc is the current catch range */
- if ((ADDR_MASK(ex->startpc) <= xpc) && (xpc < ADDR_MASK(ex->endpc))) {
- cr = ex->catchtype;
+ if ((ADDR_MASK(ete->startpc) <= xpc) && (xpc < ADDR_MASK(ete->endpc))) {
+ cr = ete->catchtype;
/* NULL catches everything */
}
#endif
- return ex->handlerpc;
+ result = ete->handlerpc;
+ goto exceptions_handle_exception_return;
}
/* resolve or load/link the exception class */
if (IS_CLASSREF(cr)) {
/* The exception class reference is unresolved. */
- /* We have to do _eager_ resolving here. While the class of */
- /* the exception object is guaranteed to be loaded, it may */
- /* well have been loaded by a different loader than the */
- /* defining loader of m's class, which is the one we must */
- /* use to resolve the catch class. Thus lazy resolving */
- /* might fail, even if the result of the resolution would */
- /* be an already loaded class. */
+ /* We have to do _eager_ resolving here. While the
+ class of the exception object is guaranteed to be
+ loaded, it may well have been loaded by a different
+ loader than the defining loader of m's class, which
+ is the one we must use to resolve the catch
+ class. Thus lazy resolving might fail, even if the
+ result of the resolution would be an already loaded
+ class. */
c = resolve_classref_eager(cr.ref);
if (c == NULL) {
/* Exception resolving the exception class, argh! */
- return NULL;
+ goto exceptions_handle_exception_return;
}
- /* Ok, we resolved it. Enter it in the table, so we don't */
- /* have to do this again. */
- /* XXX this write should be atomic. Is it? */
+ /* Ok, we resolved it. Enter it in the table, so we
+ don't have to do this again. */
+ /* XXX this write should be atomic. Is it? */
- ex->catchtype.cls = c;
- } else {
+ ete->catchtype.cls = c;
+ }
+ else {
c = cr.cls;
/* XXX I don't think this case can ever happen. -Edwin */
/* use the methods' classloader */
if (!load_class_from_classloader(c->name,
m->class->classloader))
- return NULL;
+ goto exceptions_handle_exception_return;
- /* XXX I think, if it is not linked, we can be sure that */
- /* the exception object is no (indirect) instance of it, no? */
- /* -Edwin */
+ /* XXX I think, if it is not linked, we can be sure
+ that the exception object is no (indirect) instance
+ of it, no? -Edwin */
if (!(c->state & CLASS_LINKED))
if (!link_class(c))
- return NULL;
+ goto exceptions_handle_exception_return;
}
/* is the thrown exception an instance of the catch class? */
}
#endif
- return ex->handlerpc;
+ result = ete->handlerpc;
+ goto exceptions_handle_exception_return;
}
}
}
+ }
#if defined(ENABLE_THREADS)
- /* is this method synchronized? */
+ /* Is this method realization synchronized? */
- if (issync) {
- /* get synchronization object */
+ if (code_is_synchronized(code)) {
+ /* Get synchronization object. */
-# if (defined(__MIPS__) && (SIZEOF_VOID_P == 4)) || defined(__I386__) || defined(__S390__) || defined(__POWERPC__)
- /* XXX change this if we ever want to use 4-byte stackslots */
- o = *((java_object_t **) (sp + issync - 8));
-# else
- o = *((java_object_t **) (sp + issync - SIZEOF_VOID_P));
-# endif
+ o = *((java_object_t **) (sp + code->synchronizedoffset));
assert(o != NULL);
- lock_monitor_exit(o);
+ lock_monitor_exit(LLNI_QUICKWRAP(o));
}
#endif
# endif
#endif /* !defined(NDEBUG) */
- return NULL;
+ result = NULL;
+
+exceptions_handle_exception_return:
+
+ /* Remove the stackframeinfo. */
+
+ stacktrace_stackframeinfo_remove(&sfi);
+
+ return result;
}
#endif /* defined(ENABLE_JIT) */
projects / cacao.git / blobdiff