1 /*
   2  * Copyright (c) 2019, Google Inc. All rights reserved.
   3  * Copyright (c) 2019, 2020, Oracle and/or its affiliates. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  */
  24 
  25 /*
  26  * @test
  27  * @summary Test with extra TLS size.
  28  * @modules java.base/jdk.internal.misc
  29  * @library /test/lib
  30  * @requires os.family == "linux"
  31  * @compile T.java
  32  * @run main/native TestTLS
  33  */
  34 import jdk.test.lib.Utils;
  35 import jdk.test.lib.process.ProcessTools;
  36 import jdk.test.lib.process.OutputAnalyzer;
  37 
  38 
  39 public class TestTLS {
  40     public static void main(String args[]) throws Exception {
  41         test01();
  42     }
  43 
  44     // Testcase 1. Run with stack size adjusted for TLS, expect success
  45     public static void test01() throws Exception {
  46         ProcessBuilder pb = ProcessTools.createNativeTestProcessBuilder("stack-tls", "-add_tls");
  47         pb.environment().put("CLASSPATH", Utils.TEST_CLASS_PATH);
  48         new OutputAnalyzer(pb.start())
  49             .shouldHaveExitValue(0);
  50     }
  51 
  52     // Testcase 2. Run with no stack size adjustment and expect failure.
  53     // Potential failures include StackOverflowError, thread creation failures,
  54     // crashes, and etc. The test case can be used to demonstrate the TLS issue
  55     // but is excluded from running in regular testing.
  56     public static void test02() throws Exception {
  57         ProcessBuilder pb = ProcessTools.createNativeTestProcessBuilder("stack-tls");
  58         pb.environment().put("CLASSPATH", Utils.TEST_CLASS_PATH);
  59         new OutputAnalyzer(pb.start())
  60             .shouldHaveExitValue(1);
  61     }
  62 }