1 /* src/native/vm/gnu/gnu_classpath_VMStackWalker.c
3 Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
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., 51 Franklin Street, Fifth Floor, Boston, MA
30 #include "native/jni.h"
31 #include "native/llni.h"
32 #include "native/native.h"
34 #include "native/include/java_lang_Class.h"
35 #include "native/include/java_lang_ClassLoader.h"
37 #include "native/include/gnu_classpath_VMStackWalker.h"
39 #include "vm/builtin.h"
40 #include "vm/global.h"
42 #include "vm/jit/stacktrace.h"
44 #include "vmcore/class.h"
47 /* native methods implemented by this file ************************************/
49 static JNINativeMethod methods[] = {
50 { "getClassContext", "()[Ljava/lang/Class;", (void *) (ptrint) &Java_gnu_classpath_VMStackWalker_getClassContext },
51 { "getCallingClass", "()Ljava/lang/Class;", (void *) (ptrint) &Java_gnu_classpath_VMStackWalker_getCallingClass },
52 { "getCallingClassLoader", "()Ljava/lang/ClassLoader;", (void *) (ptrint) &Java_gnu_classpath_VMStackWalker_getCallingClassLoader },
53 { "firstNonNullClassLoader", "()Ljava/lang/ClassLoader;", (void *) (ptrint) &Java_gnu_classpath_VMStackWalker_firstNonNullClassLoader },
57 /* _Jv_gnu_classpath_VMStackWalker_init ****************************************
59 Register native functions.
61 *******************************************************************************/
63 void _Jv_gnu_classpath_VMStackWalker_init(void)
67 u = utf_new_char("gnu/classpath/VMStackWalker");
69 native_method_register(u, methods, NATIVE_METHODS_COUNT);
74 * Class: gnu/classpath/VMStackWalker
75 * Method: getClassContext
76 * Signature: ()[Ljava/lang/Class;
78 JNIEXPORT java_handle_objectarray_t* JNICALL Java_gnu_classpath_VMStackWalker_getClassContext(JNIEnv *env, jclass clazz)
80 java_handle_objectarray_t *oa;
82 oa = stacktrace_getClassContext();
89 * Class: gnu/classpath/VMStackWalker
90 * Method: getCallingClass
91 * Signature: ()Ljava/lang/Class;
93 JNIEXPORT java_lang_Class* JNICALL Java_gnu_classpath_VMStackWalker_getCallingClass(JNIEnv *env, jclass clazz)
95 java_handle_objectarray_t *oa;
98 oa = stacktrace_getClassContext();
103 if (LLNI_array_size(oa) < 2)
106 LLNI_objectarray_element_get(oa, 1, o);
108 return (java_lang_Class *) o;
113 * Class: gnu/classpath/VMStackWalker
114 * Method: getCallingClassLoader
115 * Signature: ()Ljava/lang/ClassLoader;
117 JNIEXPORT java_lang_ClassLoader* JNICALL Java_gnu_classpath_VMStackWalker_getCallingClassLoader(JNIEnv *env, jclass clazz)
119 java_handle_objectarray_t *oa;
123 oa = stacktrace_getClassContext();
128 if (LLNI_array_size(oa) < 2)
131 c = (classinfo *) LLNI_array_direct(oa, 1);
137 return (java_lang_ClassLoader *) cl->object;
142 * Class: gnu/classpath/VMStackWalker
143 * Method: firstNonNullClassLoader
144 * Signature: ()Ljava/lang/ClassLoader;
146 JNIEXPORT java_lang_ClassLoader* JNICALL Java_gnu_classpath_VMStackWalker_firstNonNullClassLoader(JNIEnv *env, jclass clazz)
148 java_handle_objectarray_t *oa;
153 oa = stacktrace_getClassContext();
158 for (i = 0; i < LLNI_array_size(oa); i++) {
159 c = (classinfo *) LLNI_array_direct(oa, i);
163 return (java_lang_ClassLoader *) cl->object;
171 * These are local overrides for various environment variables in Emacs.
172 * Please do not remove this and leave it at the end of the file, where
173 * Emacs will automagically detect them.
174 * ---------------------------------------------------------------------
177 * indent-tabs-mode: t
181 * vim:noexpandtab:sw=4:ts=4: