| /* |
| * Copyright (c) 2014, 2016, 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 8001071 |
| * @summary Add simple range check into VM implemenation of Unsafe access methods |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| */ |
| |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.Platform; |
| |
| import jdk.internal.misc.Unsafe; |
| |
| public class RangeCheck { |
| |
| public static void main(String args[]) throws Exception { |
| if (!Platform.isDebugBuild()) { |
| System.out.println("Testing assert which requires a debug build. Passing silently."); |
| return; |
| } |
| |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| true, |
| "-Xmx32m", |
| "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED", |
| "-XX:-TransmitErrorReport", |
| "-XX:-CreateCoredumpOnCrash", |
| "-XX:-InlineUnsafeOps", // The compiler intrinsics doesn't have the assert |
| DummyClassWithMainRangeCheck.class.getName()); |
| |
| OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
| output.shouldMatch("assert\\(byte_offset < p_size\\) failed: Unsafe access: offset \\d+ > object's size \\d+"); |
| } |
| |
| public static class DummyClassWithMainRangeCheck { |
| public static void main(String args[]) throws Exception { |
| Unsafe unsafe = Unsafe.getUnsafe(); |
| unsafe.getObject(new DummyClassWithMainRangeCheck(), Short.MAX_VALUE); |
| } |
| } |
| } |