Quelle libLingeredApp.c

Sprache: C

/*
* Copyright (c) 2020, 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>

// Borrowed from hotspot vmError.cpp.
// Returns an address which is guaranteed to generate a SIGSEGV on read,
// which is not NULL and contains bits in every word
void* get_segfault_address() {
  return (void*)
#ifdef _LP64
    0xABC0000000000ABCULL;
#else
    0x00000ABC;
#endif
}

JNIEXPORT jint JNICALL
Java_jdk_test_lib_apps_LingeredApp_crash(JNIEnv *env, jclass clss)
{
    return *(jint *)get_segfault_address();
}

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