jdk

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/*
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 * Copyright (c) 2019, Google Inc. All rights reserved.
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 * Copyright (c) 2019, 2020, Oracle and/or its affiliates. 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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/*
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 * @test
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 * @summary Test with extra TLS size.
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 * @modules java.base/jdk.internal.misc
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 * @library /test/lib
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 * @requires os.family == "linux"
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 * @compile T.java
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 * @run main/native TestTLS
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 */
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import jdk.test.lib.Utils;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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public class TestTLS {
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    public static void main(String args[]) throws Exception {
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        test01();
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    }
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    // Testcase 1. Run with stack size adjusted for TLS, expect success
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    public static void test01() throws Exception {
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        ProcessBuilder pb = ProcessTools.createNativeTestProcessBuilder("stack-tls", "-add_tls");
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        pb.environment().put("CLASSPATH", Utils.TEST_CLASS_PATH);
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        new OutputAnalyzer(pb.start())
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            .shouldHaveExitValue(0);
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    }
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    // Testcase 2. Run with no stack size adjustment and expect failure.
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    // Potential failures include StackOverflowError, thread creation failures,
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    // crashes, and etc. The test case can be used to demonstrate the TLS issue
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    // but is excluded from running in regular testing.
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    public static void test02() throws Exception {
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        ProcessBuilder pb = ProcessTools.createNativeTestProcessBuilder("stack-tls");
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        pb.environment().put("CLASSPATH", Utils.TEST_CLASS_PATH);
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        new OutputAnalyzer(pb.start())
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            .shouldHaveExitValue(1);
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    }
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}
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