1 /* nat/VMThrowable.c - java/lang/Throwable
3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
5 M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
6 P. Tomsich, J. Wenninger
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
25 Contact: cacao@complang.tuwien.ac.at
27 Authors: Joseph Wenninger
29 $Id: VMThrowable.c 1680 2004-12-04 12:02:08Z jowenn $
33 #include "native/jni.h"
34 #include "native/native.h"
35 #include "native/include/java_lang_Class.h"
36 #include "native/include/java_lang_Throwable.h"
37 #include "native/include/java_lang_VMClass.h"
38 #include "native/include/java_lang_VMThrowable.h"
39 #include "vm/builtin.h"
40 #include "vm/loader.h"
41 #include "vm/tables.h"
42 #include "vm/jit/asmpart.h"
46 * Class: java/lang/VMThrowable
47 * Method: fillInStackTrace
48 * Signature: (Ljava/lang/Throwable;)Ljava/lang/VMThrowable;
50 JNIEXPORT java_lang_VMThrowable* JNICALL Java_java_lang_VMThrowable_fillInStackTrace(JNIEnv *env, jclass clazz, java_lang_Throwable *par1)
52 classinfo *class_java_lang_VMThrowable = NULL;
53 java_lang_VMThrowable *vmthrow;
55 if (!class_java_lang_VMThrowable)
56 class_java_lang_VMThrowable = class_new(utf_new_char("java/lang/VMThrowable"));
58 if (class_java_lang_VMThrowable == NULL)
59 panic("Needed class java.lang.VMThrowable missing");
61 vmthrow = (java_lang_VMThrowable *) native_new_and_init(class_java_lang_VMThrowable);
64 panic("Needed instance of class java.lang.VMThrowable could not be created");
67 cacao_stacktrace_NormalTrace(&(vmthrow->vmData));
74 java_objectarray* generateStackTraceArray(JNIEnv *env,stacktraceelement *el,long size)
81 c = class_new(utf_new_char("java/lang/StackTraceElement"));
89 m = class_findmethod(c,
90 utf_new_char("<init>"),
91 utf_new_char("(Ljava/lang/String;ILjava/lang/String;Ljava/lang/String;Z)V"));
94 panic("java.lang.StackTraceElement misses needed constructor");
96 oa = builtin_anewarray(size, c);
101 /* printf("Should return an array with %ld element(s)\n",size);*/
104 for(resultPos=0;size>0;size--,el++,resultPos++) {
105 java_objectheader *element;
112 element=builtin_new(c);
114 panic("Memory for stack trace element could not be allocated");
117 #warning call constructor once jni is fixed to allow more than three parameters
120 (*env)->CallVoidMethod(env,element,m,
121 javastring_new(el->method->class->sourcefile),
122 source[size].linenumber,
123 javastring_new(el->method->class->name),
124 javastring_new(el->method->name),
125 el->method->flags & ACC_NATIVE);
127 if (!(el->method->flags & ACC_NATIVE))setfield_critical(c,element,"fileName",
128 "Ljava/lang/String;", jobject,
129 (jobject) javastring_new(el->method->class->sourcefile));
130 /* setfield_critical(c,element,"className", "Ljava/lang/String;", jobject, */
131 /* (jobject) javastring_new(el->method->class->name)); */
132 setfield_critical(c,element,"declaringClass", "Ljava/lang/String;", jobject,
133 (jobject) Java_java_lang_VMClass_getName(env, NULL, (java_lang_Class *) el->method->class));
134 setfield_critical(c,element,"methodName", "Ljava/lang/String;", jobject,
135 (jobject) javastring_new(el->method->name));
136 setfield_critical(c,element,"lineNumber", "I", jint,
137 (jint) ((el->method->flags & ACC_NATIVE) ? -1:(el->linenumber)));
138 setfield_critical(c,element,"isNative", "Z", jboolean,
139 (jboolean) ((el->method->flags & ACC_NATIVE) ? 1:0));
144 oa->data[resultPos]=element;
153 * Class: java/lang/VMThrowable
154 * Method: getStackTrace
155 * Signature: (Ljava/lang/Throwable;)[Ljava/lang/StackTraceElement;
157 JNIEXPORT java_objectarray* JNICALL Java_java_lang_VMThrowable_getStackTrace(JNIEnv *env, java_lang_VMThrowable *this, java_lang_Throwable *par1)
160 stackTraceBuffer *buf=(stackTraceBuffer*)this->vmData;
162 stacktraceelement *el;
163 classinfo *excClass=par1->header.vftbl->class;
164 utf* init=utf_new_char("<init>");
165 utf* throwable=utf_new_char("java/lang/Throwable");
166 long destElementCount;
167 stacktraceelement *tmpEl;
169 if (!buf) panic("Invalid java.lang.VMThrowable.vmData field in java.lang.VMThrowable.getStackTrace native code");
172 if (size<=2) panic("Invalid java.lang.VMThrowable.vmData field in java.lang.VMThrowable.getStackTrace native code (length<=2)");
174 el=&(buf->start[2]); /* element 0==VMThrowable.fillInStackTrace native call, 1==Throwable.fillInStackTrace*/
175 if (el->method!=0) { /* => not a builtin native wrapper*/
176 if ((el->method->class->name==throwable) && (el->method->name == init) ){
177 /* We assume that we are within the initializer of the exception object, the exception object itself should not appear
178 in the stack trace, so we skip till we reach the first function, which is not an init function or till we reach the exception object class*/
179 for (; (size>0) && (el->method->name==init) && (el->method->class!=excClass); el++, size--) {
185 log_text("Invalid stacktrace for VMThrowable.getStackTrace()");
191 for (destElementCount = 0, tmpEl=el; size>0; size--,tmpEl++) {
192 if (tmpEl->method!=0) destElementCount++;
195 return generateStackTraceArray(env,el,destElementCount);
203 * These are local overrides for various environment variables in Emacs.
204 * Please do not remove this and leave it at the end of the file, where
205 * Emacs will automagically detect them.
206 * ---------------------------------------------------------------------
209 * indent-tabs-mode: t