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      1 /*
      2  * Copyright (c) 1994, 2011, Oracle and/or its affiliates. All rights reserved.
      3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
      4  *
      5  * This code is free software; you can redistribute it and/or modify it
      6  * under the terms of the GNU General Public License version 2 only, as
      7  * published by the Free Software Foundation.  Oracle designates this
      8  * particular file as subject to the "Classpath" exception as provided
      9  * by Oracle in the LICENSE file that accompanied this code.
     10  *
     11  * This code is distributed in the hope that it will be useful, but WITHOUT
     12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     14  * version 2 for more details (a copy is included in the LICENSE file that
     15  * accompanied this code).
     16  *
     17  * You should have received a copy of the GNU General Public License version
     18  * 2 along with this work; if not, write to the Free Software Foundation,
     19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
     20  *
     21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
     22  * or visit www.oracle.com if you need additional information or have any
     23  * questions.
     24  */
     25 
     26 /*
     27  *      Implementation of class Throwable
     28  *
     29  *      former classruntime.c, Wed Jun 26 18:43:20 1991
     30  */
     31 
     32 #include <stdio.h>
     33 #include <signal.h>
     34 
     35 #include "jni.h"
     36 #include "jvm.h"
     37 
     38 #include "JNIHelp.h"
     39 
     40 #define NATIVE_METHOD(className, functionName, signature) \
     41 { #functionName, signature, (void*)(className ## _ ## functionName) }
     42 
     43 /*
     44  * Fill in the current stack trace in this exception.  This is
     45  * usually called automatically when the exception is created but it
     46  * may also be called explicitly by the user.  This routine returns
     47  * `this' so you can write 'throw e.fillInStackTrace();'
     48  */
     49 JNIEXPORT jobject JNICALL
     50 Throwable_fillInStackTrace(JNIEnv *env, jobject throwable, int dummy)
     51 {
     52     JVM_FillInStackTrace(env, throwable);
     53     return throwable;
     54 }
     55 
     56 JNIEXPORT jint JNICALL
     57 Throwable_getStackTraceDepth(JNIEnv *env, jobject throwable)
     58 {
     59     return JVM_GetStackTraceDepth(env, throwable);
     60 }
     61 
     62 JNIEXPORT jobject JNICALL
     63 Throwable_getStackTraceElement(JNIEnv *env,
     64                                               jobject throwable, jint index)
     65 {
     66     return JVM_GetStackTraceElement(env, throwable, index);
     67 }
     68 static JNINativeMethod gMethods[] = {
     69   NATIVE_METHOD(Throwable, fillInStackTrace, "(I)Ljava/lang/Throwable;"),
     70   NATIVE_METHOD(Throwable, getStackTraceDepth, "()I"),
     71   NATIVE_METHOD(Throwable, getStackTraceElement, "(I)Ljava/lang/StackTraceElement;"),
     72 };
     73 
     74 void register_java_lang_Throwable(JNIEnv* env) {
     75   jniRegisterNativeMethods(env, "java/lang/Throwable", gMethods, NELEM(gMethods));
     76 }
     77