/* src/vm/exceptions.c - exception related functions
- Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
- R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
- C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
- Institut f. Computersprachen - TU Wien
+ Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+ C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
+ E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
+ J. Wenninger, Institut f. Computersprachen - TU Wien
This file is part of CACAO.
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., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
- Contact: cacao@complang.tuwien.ac.at
+ Contact: cacao@cacaojvm.org
Authors: Christian Thalinger
Changes: Edwin Steiner
- $Id: exceptions.c 4147 2006-01-12 21:07:11Z twisti $
+ $Id: exceptions.c 5866 2006-10-30 11:00:56Z edwin $
*/
#include "vm/loader.h"
#include "vm/options.h"
#include "vm/stringlocal.h"
+#include "vm/vm.h"
#include "vm/jit/asmpart.h"
#include "vm/jit/jit.h"
#include "vm/jit/methodheader.h"
/* for raising exceptions from native methods *********************************/
-#if !defined(USE_THREADS) || !defined(NATIVE_THREADS)
+#if !defined(ENABLE_THREADS)
java_objectheader *_no_threads_exceptionptr = NULL;
#endif
!link_class(class_java_lang_Error))
return false;
- /* java/lang/NoClassDefFoundError */
+ /* java/lang/AbstractMethodError */
- if (!(class_java_lang_NoClassDefFoundError =
- load_class_bootstrap(utf_java_lang_NoClassDefFoundError)) ||
- !link_class(class_java_lang_NoClassDefFoundError))
+ if (!(class_java_lang_AbstractMethodError =
+ load_class_bootstrap(utf_java_lang_AbstractMethodError)) ||
+ !link_class(class_java_lang_AbstractMethodError))
return false;
/* java/lang/LinkageError */
!link_class(class_java_lang_LinkageError))
return false;
+ /* 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/NoSuchMethodError */
if (!(class_java_lang_NoSuchMethodError =
!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 =
/* print the stacktrace */
if (pss) {
- ASM_CALLJAVAFUNCTION(pss, xptr, NULL, NULL, NULL);
+ (void) vm_call_method(pss, xptr);
/* This normally means, we are EXTREMLY out of memory or have a */
/* serious problem while printStackTrace. But may be another */
t = (java_lang_Throwable *) *exceptionptr;
fprintf(stderr, "Exception while printStackTrace(): ");
- utf_fprint_classname(stderr, t->header.vftbl->class->name);
+ utf_fprint_printable_ascii_classname(stderr, t->header.vftbl->class->name);
if (t->detailMessage) {
char *buf;
}
} else {
- utf_fprint_classname(stderr, c->name);
+ utf_fprint_printable_ascii_classname(stderr, c->name);
fprintf(stderr, ": printStackTrace()V not found!\n");
}
Creates an exception object with the given name and initalizes it.
+ IN:
+ classname....class name in UTF-8
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *new_exception(const char *classname)
Creates an exception object with the given name and initalizes it
with the given char message.
+ IN:
+ classname....class name in UTF-8
+ message......message in UTF-8
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *new_exception_message(const char *classname,
const char *message)
{
- java_objectheader *o;
- classinfo *c;
-
- if (!(c = load_class_bootstrap(utf_new_char(classname))))
- return *exceptionptr;
+ java_lang_String *s;
- o = native_new_and_init_string(c, javastring_new_char(message));
-
- if (!o)
+ s = javastring_new_from_utf_string(message);
+ if (!s)
return *exceptionptr;
- return o;
+ return new_exception_javastring(classname, s);
}
Creates an exception object with the given name and initalizes it
with the given java/lang/Throwable exception.
+ IN:
+ classname....class name in UTF-8
+ throwable....the given Throwable
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *new_exception_throwable(const char *classname,
Creates an exception object with the given name and initalizes it
with the given utf message.
+ IN:
+ classname....class name in UTF-8
+ message......the message as an utf *
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *new_exception_utfmessage(const char *classname, utf *message)
{
- java_objectheader *o;
- classinfo *c;
-
- if (!(c = load_class_bootstrap(utf_new_char(classname))))
- return *exceptionptr;
-
- o = native_new_and_init_string(c, javastring_new(message));
+ java_lang_String *s;
- if (!o)
+ s = javastring_new(message);
+ if (!s)
return *exceptionptr;
- return o;
+ return new_exception_javastring(classname, s);
}
Creates an exception object with the given name and initalizes it
with the given java/lang/String message.
+ IN:
+ classname....class name in UTF-8
+ message......the message as a java.lang.String
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *new_exception_javastring(const char *classname,
Creates an exception object with the given name and initalizes it
with the given int value.
+ IN:
+ classname....class name in UTF-8
+ i............the integer
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *new_exception_int(const char *classname, s4 i)
}
+/* exceptions_new_abstractmethoderror ******************************************
+
+ Generates a java.lang.AbstractMethodError for the VM.
+
+*******************************************************************************/
+
+java_objectheader *exceptions_new_abstractmethoderror(void)
+{
+ java_objectheader *e;
+
+ e = native_new_and_init(class_java_lang_AbstractMethodError);
+
+ if (e == NULL)
+ return *exceptionptr;
+
+ return e;
+}
+
+
+/* exceptions_asm_new_abstractmethoderror **************************************
+
+ Generates a java.lang.AbstractMethodError for
+ asm_abstractmethoderror.
+
+*******************************************************************************/
+
+java_objectheader *exceptions_asm_new_abstractmethoderror(u1 *sp, u1 *ra)
+{
+ stackframeinfo sfi;
+ java_objectheader *e;
+
+ /* create the stackframeinfo (XPC is equal to RA) */
+
+ stacktrace_create_extern_stackframeinfo(&sfi, NULL, sp, ra, ra);
+
+ /* create the exception */
+
+ e = exceptions_new_abstractmethoderror();
+
+ /* remove the stackframeinfo */
+
+ stacktrace_remove_stackframeinfo(&sfi);
+
+ return e;
+}
+
+
+/* exceptions_throw_abstractmethoderror ****************************************
+
+ Generates a java.lang.AbstractMethodError for the VM and throws it.
+
+*******************************************************************************/
+
+void exceptions_throw_abstractmethoderror(void)
+{
+ *exceptionptr = exceptions_new_abstractmethoderror();
+}
+
+
/* new_classformaterror ********************************************************
generates a java.lang.ClassFormatError for the classloader
+ IN:
+ c............the class in which the error was found
+ message......UTF-8 format string
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *new_classformaterror(classinfo *c, const char *message, ...)
msglen = 0;
if (c)
- msglen += utf_strlen(c->name) + strlen(" (");
+ msglen += utf_bytes(c->name) + strlen(" (");
va_start(ap, message);
msglen += get_variable_message_length(message, ap);
/* print message into allocated buffer */
if (c) {
- utf_sprint_classname(msg, c->name);
+ utf_copy_classname(msg, c->name);
strcat(msg, " (");
}
/* exceptions_throw_classformaterror *******************************************
- Generates a java.lang.ClassFormatError for the VM system throw it
- in the VM system.
+ Generate a java.lang.ClassFormatError for the VM system and throw it.
+
+ IN:
+ c............the class in which the error was found
+ message......UTF-8 format string
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
*******************************************************************************/
Generates a java.lang.ClassNotFoundException for the classloader.
+ IN:
+ name.........name of the class not found as a utf *
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *new_classnotfoundexception(utf *name)
{
java_objectheader *o;
+ java_lang_String *s;
- o = native_new_and_init_string(class_java_lang_ClassNotFoundException,
- javastring_new(name));
+ s = javastring_new(name);
+ if (!s)
+ return *exceptionptr;
+
+ o = native_new_and_init_string(class_java_lang_ClassNotFoundException, s);
if (!o)
return *exceptionptr;
Generates a java.lang.NoClassDefFoundError
+ IN:
+ name.........name of the class not found as a utf *
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *new_noclassdeffounderror(utf *name)
{
java_objectheader *o;
+ java_lang_String *s;
+
+ s = javastring_new(name);
+ if (!s)
+ return *exceptionptr;
- o = native_new_and_init_string(class_java_lang_NoClassDefFoundError,
- javastring_new(name));
+ o = native_new_and_init_string(class_java_lang_NoClassDefFoundError, s);
if (!o)
return *exceptionptr;
Generates a java.lang.InternalError for the VM.
+ IN:
+ message......UTF-8 message format string
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *new_internalerror(const char *message, ...)
/* exceptions_new_linkageerror *************************************************
Generates a java.lang.LinkageError with an error message.
- If c != NULL, the name of c is appended to the error message.
+
+ IN:
+ message......UTF-8 message
+ c............class related to the error. If this is != NULL
+ the name of c is appended to the error message.
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
*******************************************************************************/
msglen = strlen(message) + 1;
if (c) {
- msglen += utf_strlen(c->name);
+ msglen += utf_bytes(c->name);
}
/* allocate memory */
strcpy(msg,message);
if (c) {
- utf_strcat(msg, c->name);
+ utf_cat_classname(msg, c->name);
}
o = native_new_and_init_string(class_java_lang_LinkageError,
- javastring_new_char(msg));
+ javastring_new_from_utf_string(msg));
/* free memory */
MFREE(msg, char, msglen);
+ if (!o)
+ return *exceptionptr;
+
return o;
}
Generates a java.lang.NoSuchMethodError with an error message.
+ IN:
+ c............class in which the method was not found
+ name.........name of the method
+ desc.........descriptor of the method
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
*******************************************************************************/
java_objectheader *exceptions_new_nosuchmethoderror(classinfo *c,
/* calculate exception message length */
- msglen = utf_strlen(c->name) + strlen(".") + utf_strlen(name) +
- utf_strlen(desc) + strlen("0");
+ msglen = utf_bytes(c->name) + strlen(".") + utf_bytes(name) +
+ utf_bytes(desc) + strlen("0");
/* allocate memory */
/* generate message */
- utf_sprint(msg, c->name);
+ utf_copy_classname(msg, c->name);
strcat(msg, ".");
- utf_strcat(msg, name);
- utf_strcat(msg, desc);
+ utf_cat(msg, name);
+ utf_cat(msg, desc);
o = native_new_and_init_string(class_java_lang_NoSuchMethodError,
- javastring_new_char(msg));
+ javastring_new_from_utf_string(msg));
/* free memory */
MFREE(msg, char, msglen);
+ if (!o)
+ return *exceptionptr;
+
return o;
}
+/* exceptions_throw_nosuchmethoderror ******************************************
+
+ Generates a java.lang.NoSuchMethodError with an error message.
+
+ IN:
+ c............class in which the method was not found
+ name.........name of the method
+ desc.........descriptor of the method
+
+*******************************************************************************/
+
+void exceptions_throw_nosuchmethoderror(classinfo *c, utf *name, utf *desc)
+{
+ *exceptionptr = exceptions_new_nosuchmethoderror(c, name, desc);
+}
+
+
/* new_unsupportedclassversionerror ********************************************
- generates a java.lang.UnsupportedClassVersionError for the classloader
+ Generate a java.lang.UnsupportedClassVersionError for the classloader
+
+ IN:
+ c............class in which the method was not found
+ message......UTF-8 format string
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
*******************************************************************************/
/* calculate exception message length */
- msglen = utf_strlen(c->name) + strlen(" (") + strlen(")") + strlen("0");
+ msglen = utf_bytes(c->name) + strlen(" (") + strlen(")") + strlen("0");
va_start(ap, message);
msglen += get_variable_message_length(message, ap);
/* generate message */
- utf_sprint_classname(msg, c->name);
+ utf_copy_classname(msg, c->name);
strcat(msg, " (");
va_start(ap, message);
}
-/* new_verifyerror *************************************************************
+/* exceptions_new_verifyerror **************************************************
+
+ Generates a java.lang.VerifyError for the JIT compiler.
+
+ IN:
+ m............method in which the error was found
+ message......UTF-8 format string
- generates a java.lang.VerifyError for the jit compiler
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
*******************************************************************************/
-java_objectheader *new_verifyerror(methodinfo *m, const char *message, ...)
+java_objectheader *exceptions_new_verifyerror(methodinfo *m,
+ const char *message, ...)
{
java_objectheader *o;
va_list ap;
msglen = 0;
if (m)
- msglen = strlen("(class: ") + utf_strlen(m->class->name) +
- strlen(", method: ") + utf_strlen(m->name) +
- strlen(" signature: ") + utf_strlen(m->descriptor) +
+ msglen = strlen("(class: ") + utf_bytes(m->class->name) +
+ strlen(", method: ") + utf_bytes(m->name) +
+ strlen(" signature: ") + utf_bytes(m->descriptor) +
strlen(") ") + strlen("0");
va_start(ap, message);
if (m) {
strcpy(msg, "(class: ");
- utf_strcat(msg, m->class->name);
+ utf_cat_classname(msg, m->class->name);
strcat(msg, ", method: ");
- utf_strcat(msg, m->name);
+ utf_cat(msg, m->name);
strcat(msg, " signature: ");
- utf_strcat(msg, m->descriptor);
+ utf_cat(msg, m->descriptor);
strcat(msg, ") ");
}
}
+/* exceptions_throw_verifyerror ************************************************
+
+ Throws a java.lang.VerifyError for the VM system.
+
+*******************************************************************************/
+
+void exceptions_throw_verifyerror(methodinfo *m, const char *message, ...)
+{
+ *exceptionptr = exceptions_new_verifyerror(m, message);
+}
+
+
+/* exceptions_throw_verifyerror_for_stack **************************************
+
+ throws a java.lang.VerifyError for an invalid stack slot type
+
+ IN:
+ m............method in which the error was found
+ type.........the expected type
+
+ RETURN VALUE:
+ an exception pointer (in any case -- either it is the newly created
+ exception, or an exception thrown while trying to create it).
+
+*******************************************************************************/
+
+void exceptions_throw_verifyerror_for_stack(methodinfo *m,int type)
+{
+ java_objectheader *o;
+ char *msg;
+ s4 msglen;
+ char *typename;
+
+ /* calculate exception message length */
+
+ msglen = 0;
+
+ if (m)
+ msglen = strlen("(class: ") + utf_bytes(m->class->name) +
+ strlen(", method: ") + utf_bytes(m->name) +
+ strlen(" signature: ") + utf_bytes(m->descriptor) +
+ strlen(") Expecting to find longest-------typename on stack")
+ + strlen("0");
+
+ /* allocate memory */
+
+ msg = MNEW(char, msglen);
+
+ /* generate message */
+
+ if (m) {
+ strcpy(msg, "(class: ");
+ utf_cat_classname(msg, m->class->name);
+ strcat(msg, ", method: ");
+ utf_cat(msg, m->name);
+ strcat(msg, " signature: ");
+ utf_cat(msg, m->descriptor);
+ strcat(msg, ") ");
+ }
+ else {
+ msg[0] = 0;
+ }
+
+ strcat(msg,"Expecting to find ");
+ switch (type) {
+ case TYPE_INT: typename = "integer"; break;
+ case TYPE_LNG: typename = "long"; break;
+ case TYPE_FLT: typename = "float"; break;
+ case TYPE_DBL: typename = "double"; break;
+ case TYPE_ADR: typename = "object/array"; break;
+ case TYPE_RET: typename = "returnAddress"; break;
+ default: typename = "<INVALID>"; assert(0); break;
+ }
+ strcat(msg, typename);
+ strcat(msg, " on stack");
+
+ /* create exception object */
+
+ o = new_exception_message(string_java_lang_VerifyError, msg);
+
+ /* free memory */
+
+ MFREE(msg, char, msglen);
+
+ *exceptionptr = o;
+}
+
+
/* new_arithmeticexception *****************************************************
Generates a java.lang.ArithmeticException for the jit compiler.
class_java_lang_Object,
true);
- if (!m)
+ if (m == NULL)
return *exceptionptr;
- ASM_CALLJAVAFUNCTION_ADR(o, m, (void *) (ptrint) index, NULL, NULL, NULL);
+ o = vm_call_method(m, NULL, index);
s = (java_lang_String *) o;
- if (!s)
+ if (s == NULL)
return *exceptionptr;
e = new_exception_javastring(string_java_lang_ArrayIndexOutOfBoundsException,
s);
- if (!e)
+ if (e == NULL)
return *exceptionptr;
return e;
}
-/* new_arraystoreexception *****************************************************
+/* exceptions_new_arraystoreexception ******************************************
- generates a java.lang.ArrayStoreException for the jit compiler
+ Generates a java.lang.ArrayStoreException for the VM compiler.
*******************************************************************************/
-java_objectheader *new_arraystoreexception(void)
+java_objectheader *exceptions_new_arraystoreexception(void)
{
java_objectheader *e;
}
-/* new_classcastexception ******************************************************
+/* exceptions_throw_arraystoreexception ****************************************
+
+ Generates a java.lang.ArrayStoreException for the VM system and
+ throw it in the VM system.
+
+*******************************************************************************/
+
+void exceptions_throw_arraystoreexception(void)
+{
+ *exceptionptr = exceptions_new_arraystoreexception();
+}
+
+
+/* exceptions_new_classcastexception *******************************************
- generates a java.lang.ClassCastException for the jit compiler
+ Generates a java.lang.ClassCastException for the JIT compiler.
*******************************************************************************/
-java_objectheader *new_classcastexception(void)
+java_objectheader *exceptions_new_classcastexception(java_objectheader *o)
{
java_objectheader *e;
+ utf *classname;
+ java_lang_String *s;
- e = new_exception(string_java_lang_ClassCastException);
+ classname = o->vftbl->class->name;
- if (!e)
+ s = javastring_new(classname);
+
+ e = native_new_and_init_string(class_java_lang_ClassCastException, s);
+
+ if (e == NULL)
return *exceptionptr;
return e;
}
-/* new_illegalmonitorstateexception ********************************************
+/* exceptions_new_illegalmonitorstateexception *********************************
Generates a java.lang.IllegalMonitorStateException for the VM
thread system.
*******************************************************************************/
-java_objectheader *new_illegalmonitorstateexception(void)
+java_objectheader *exceptions_new_illegalmonitorstateexception(void)
{
java_objectheader *e;
e = native_new_and_init(class_java_lang_IllegalMonitorStateException);
- if (!e)
+ if (e == NULL)
return *exceptionptr;
return e;
}
+/* exceptions_throw_illegalmonitorstateexception *******************************
+
+ Generates a java.lang.IllegalMonitorStateException for the VM
+ system and throw it in the VM system.
+
+*******************************************************************************/
+
+void exceptions_throw_illegalmonitorstateexception(void)
+{
+ *exceptionptr = exceptions_new_illegalmonitorstateexception();
+}
+
+
/* exceptions_new_negativearraysizeexception ***********************************
Generates a java.lang.NegativeArraySizeException for the VM system.
}
+/* exceptions_new_stringindexoutofboundsexception ******************************
+
+ Generates a java.lang.StringIndexOutOfBoundsException for the VM
+ system.
+
+*******************************************************************************/
+
+java_objectheader *exceptions_new_stringindexoutofboundsexception(void)
+{
+ java_objectheader *e;
+
+ e = new_exception(string_java_lang_StringIndexOutOfBoundsException);
+
+ if (e == NULL)
+ return *exceptionptr;
+
+ return e;
+}
+
+
+/* exceptions_throw_stringindexoutofboundsexception ****************************
+
+ Throws a java.lang.StringIndexOutOfBoundsException for the VM
+ system.
+
+*******************************************************************************/
+
+void exceptions_throw_stringindexoutofboundsexception(void)
+{
+ *exceptionptr = exceptions_new_stringindexoutofboundsexception();
+}
+
+
+/* exceptions_get_and_clear_exception ******************************************
+
+ Gets the exception pointer of the current thread and clears it.
+ This function may return NULL.
+
+*******************************************************************************/
+
+java_objectheader *exceptions_get_and_clear_exception(void)
+{
+ java_objectheader **p;
+ java_objectheader *e;
+
+ /* get the pointer of the exception pointer */
+
+ p = exceptionptr;
+
+ /* get the exception */
+
+ e = *p;
+
+ /* and clear the exception */
+
+ *p = NULL;
+
+ /* return the exception */
+
+ return e;
+}
+
+
/* exceptions_handle_exception *************************************************
- XXX
+ Try to find an exception handler for the given exception and return it.
+ If no handler is found, exit the monitor of the method (if any)
+ and return NULL.
+
+ IN:
+ xptr.........the exception object
+ xpc..........PC of where the exception was thrown
+ pv...........Procedure Value of the current method
+ sp...........current stack pointer
+
+ RETURN VALUE:
+ the address of the first matching exception handler, or
+ NULL if no handler was found
*******************************************************************************/
+#if defined(ENABLE_JIT)
u1 *exceptions_handle_exception(java_objectheader *xptr, u1 *xpc, u1 *pv, u1 *sp)
{
methodinfo *m;
- s4 framesize;
+ codeinfo *code;
s4 issync;
- exceptionentry *ex;
+ dseg_exception_entry *ex;
s4 exceptiontablelength;
s4 i;
classref_or_classinfo cr;
classinfo *c;
+#if defined(ENABLE_THREADS)
java_objectheader *o;
+#endif
- /* get methodinfo pointer from method header */
+ /* get info from the method header */
- m = *((methodinfo **) (pv + MethodPointer));
- framesize = *((s4 *) (pv + FrameSize));
+ code = *((codeinfo **) (pv + CodeinfoPointer));
issync = *((s4 *) (pv + IsSync));
- ex = (exceptionentry *) (pv + ExTableStart);
+ ex = (dseg_exception_entry *)
+ (pv + ExTableStart);
exceptiontablelength = *((s4 *) (pv + ExTableSize));
-#if 0
- if (m != NULL) {
- printf("exceptions_handle_exception(%p, %p, %p, %p): ", xptr, xpc, pv, sp);
- utf_display(m->class->name);
- printf(".");
- utf_display(m->name);
- utf_display(m->descriptor);
- printf(", %d\n", exceptiontablelength);
- }
-#endif
+ /* Get the methodinfo pointer from the codeinfo pointer. For
+ asm_vm_call_method the codeinfo pointer is NULL. */
+
+ m = (code == NULL) ? NULL : code->m;
+#if !defined(NDEBUG)
/* print exception trace */
- if (opt_verbose || runverbose || opt_verboseexception)
+ if (opt_verbose || opt_verbosecall || opt_verboseexception)
builtin_trace_exception(xptr, m, xpc, 1);
+#endif
for (i = 0; i < exceptiontablelength; i++) {
/* ATTENTION: keep this here, as we need to decrement the
ex--;
+ /* 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 ((ex->startpc == NULL) && (ex->endpc == NULL))
+ return (u1 *) (ptrint) &asm_vm_call_method_exception_handler;
+
/* is the xpc is the current catch range */
- if (ex->startpc <= xpc && xpc < ex->endpc) {
+ if ((ex->startpc <= xpc) && (xpc < ex->endpc)) {
cr = ex->catchtype;
/* NULL catches everything */
- if (cr.any == NULL)
+ if (cr.any == NULL) {
+#if !defined(NDEBUG)
+ /* Print stacktrace of exception when caught. */
+
+ if (opt_verboseexception) {
+ exceptions_print_exception(xptr);
+ stacktrace_print_trace(xptr);
+ }
+#endif
+
return ex->handlerpc;
+ }
/* 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. */
+
c = resolve_classref_eager(cr.ref);
+ if (c == NULL) {
+ /* Exception resolving the exception class, argh! */
+ return NULL;
+ }
+
+ /* 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 {
c = cr.cls;
+ /* XXX I don't think this case can ever happen. -Edwin */
if (!(c->state & CLASS_LOADED))
/* use the methods' classloader */
if (!load_class_from_classloader(c->name,
m->class->classloader))
return NULL;
+ /* 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;
/* is the thrown exception an instance of the catch class? */
- if (builtin_instanceof(xptr, c))
+ if (builtin_instanceof(xptr, c)) {
+#if !defined(NDEBUG)
+ /* Print stacktrace of exception when caught. */
+
+ if (opt_verboseexception) {
+ exceptions_print_exception(xptr);
+ stacktrace_print_trace(xptr);
+ }
+#endif
+
return ex->handlerpc;
+ }
}
}
-#if defined(USE_THREADS)
+#if defined(ENABLE_THREADS)
/* is this method synchronized? */
if (issync) {
assert(o != NULL);
- builtin_monitorexit(o);
+ lock_monitor_exit(o);
}
#endif
return NULL;
}
+#endif /* defined(ENABLE_JIT) */
/* exceptions_print_exception **************************************************
*******************************************************************************/
-#if !defined(NDEBUG)
void exceptions_print_exception(java_objectheader *xptr)
{
java_lang_Throwable *t;
utf *u;
t = (java_lang_Throwable *) xptr;
+
+ if (t == NULL) {
+ puts("NULL\n");
+ return;
+ }
+
cause = t->cause;
/* print the root exception */
- utf_display_classname(t->header.vftbl->class->name);
+ utf_display_printable_ascii_classname(t->header.vftbl->class->name);
if (t->detailMessage) {
u = javastring_toutf(t->detailMessage, false);
printf(": ");
- utf_display(u);
+ utf_display_printable_ascii(u);
}
putc('\n', stdout);
/* print the cause if available */
- if (cause && (cause != t)) {
+ if ((cause != NULL) && (cause != t)) {
printf("Caused by: ");
- utf_display_classname(cause->header.vftbl->class->name);
+ utf_display_printable_ascii_classname(cause->header.vftbl->class->name);
if (cause->detailMessage) {
u = javastring_toutf(cause->detailMessage, false);
printf(": ");
- utf_display(u);
+ utf_display_printable_ascii(u);
}
putc('\n', stdout);
}
}
-#endif /* !defined(NDEBUG) */
/*
* c-basic-offset: 4
* tab-width: 4
* End:
+ * vim:noexpandtab:sw=4:ts=4:
*/
projects / cacao.git / blobdiff