jdk-24/test/hotspot/jtreg/serviceability/sa/libNoFramePointer.c
Severin Gehwolf 1ab91ea928 8208091: SA: jhsdb jstack --mixed throws UnmappedAddressException on i686
Be sure to use the same register index in native and Java code.

Reviewed-by: sballal, cjplummer, tbell
2018-07-23 18:08:46 +02:00

58 lines
2.0 KiB
C

/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <jni.h>
static jlong fib(jint num) {
if (num == 0) {
return 0;
}
if (num <= 2) {
return 1;
}
return fib(num - 2) + fib(num -1);
}
static void callCallback(JNIEnv *env, jclass cls, jobject target, jlong result) {
jmethodID mid = (*env)->GetMethodID(env, cls, "callback", "(J)V");
if (mid == NULL) {
jclass nsme = (jclass) (*env)->NewGlobalRef(env, (*env)->FindClass(env, "java/lang/NoSuchMethodException"));
if (nsme != NULL) {
(*env)->ThrowNew(env, nsme, "Can't find method callback()");
}
return;
}
(*env)->CallVoidMethod(env, target, mid, result);
}
static void calculateAndCallCallback(JNIEnv *env, jclass cls, jobject target, jint num) {
jlong result = -1;
result = fib(num);
callCallback(env, cls, target, result);
}
JNIEXPORT void JNICALL
Java_LingeredAppWithNativeMethod_callJNI(JNIEnv *env, jclass cls, jobject target, jint num) {
calculateAndCallCallback(env, cls, target, num);
}