82 lines
2.7 KiB
Java
82 lines
2.7 KiB
Java
/*
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* Copyright (c) 2020 Alibaba Group Holding Limited. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @library / /test/lib
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* @bug 8246051
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* @summary A test for SIGBUS in aarch64 by unalgined unsafe access
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* @requires os.arch=="aarch64"
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* @run main/othervm/timeout=200 -XX:-Inline TestUnsafeUnalignedSwap
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*/
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import sun.misc.Unsafe;
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import java.lang.reflect.Field;
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import java.util.*;
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import jdk.test.lib.Asserts;
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public class TestUnsafeUnalignedSwap {
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private final static Unsafe U;
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private static long sum = 4;
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static volatile long[] arrayLong = new long[1001];
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static volatile int[] arrayInt = new int[1001];
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static {
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try {
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Field f = Unsafe.class.getDeclaredField("theUnsafe");
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f.setAccessible(true);
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U = (Unsafe) f.get(null);
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} catch (ReflectiveOperationException e) {
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throw new InternalError(e);
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}
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}
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// Bug 8246051 : Unsafe.compareAndSwapLong should not crash
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public static void testCompareAndSwapLong() {
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try {
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if (U.compareAndSwapLong(arrayLong, Unsafe.ARRAY_LONG_BASE_OFFSET + 1, 3243, 2334)) {
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sum++;
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} else {
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sum--;
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}
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} catch (InternalError e) {
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System.out.println(e.getMessage());
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}
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}
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public static void testCompareAndSwapInt() {
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try {
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if (U.compareAndSwapInt(arrayInt, Unsafe.ARRAY_INT_BASE_OFFSET + 1, 3243, 2334)) {
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sum++;
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} else {
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sum--;
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}
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} catch (InternalError e) {
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System.out.println(e.getMessage());
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}
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}
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public static void test() {
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testCompareAndSwapLong();
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testCompareAndSwapInt();
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}
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public static void main(String[] args) {
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test();
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}
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}
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