1 /* 2 * Copyright (c) 2020, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @summary Linux kernel stack guard should not cause segfaults on x86-32 27 * @modules java.base/jdk.internal.misc 28 * @library /test/lib 29 * @requires os.family == "linux" 30 * @compile T.java 31 * @run main/native TestStackGap 32 */ 33 34 35 import jdk.test.lib.Utils; 36 import jdk.test.lib.process.ProcessTools; 37 import jdk.test.lib.process.OutputAnalyzer; 38 39 public class TestStackGap { 40 public static void main(String args[]) throws Exception { 41 ProcessBuilder pb = ProcessTools.createNativeTestProcessBuilder("stack-gap"); 42 pb.environment().put("CLASSPATH", Utils.TEST_CLASS_PATH); 43 new OutputAnalyzer(pb.start()) 44 .shouldHaveExitValue(0); 45 46 pb = ProcessTools.createNativeTestProcessBuilder("stack-gap", 47 "-XX:+DisablePrimordialThreadGuardPages"); 48 pb.environment().put("CLASSPATH", Utils.TEST_CLASS_PATH); 49 new OutputAnalyzer(pb.start()) 50 .shouldHaveExitValue(0); 51 } 52 } 53