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