jdk

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/*
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 * Copyright (c) 2017, 2022, 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 Testexecstack.java
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 * @summary Searches for all libraries in test VM and checks that they
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 *          have the noexecstack bit set.
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 * @requires (os.family == "linux")
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 * @library /test/lib
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 * @modules java.base/jdk.internal.misc
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 * @build jdk.test.whitebox.WhiteBox
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 * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
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 *                   TestCheckJDK
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 */
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import jdk.test.lib.Asserts;
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import jdk.test.whitebox.WhiteBox;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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public class TestCheckJDK {
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    static boolean testPassed = true;
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    private static final WhiteBox WB = WhiteBox.getWhiteBox();
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    static void checkExecStack(Path file) {
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        String filename = file.toString();
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        Path parent = file.getParent();
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        if ((parent.endsWith("bin") && !filename.endsWith(".diz")) || filename.endsWith(".so")) {
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            if (!WB.checkLibSpecifiesNoexecstack(filename)) {
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                System.out.println("Library does not have the noexecstack bit set: " + filename);
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                testPassed = false;
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            }
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        }
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    }
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    public static void main(String[] args) throws Throwable {
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        String vmInstallDir = System.getProperty("java.home");
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        Files.walk(Paths.get(vmInstallDir)).filter(Files::isRegularFile).forEach(TestCheckJDK::checkExecStack);
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        Asserts.assertTrue(testPassed,
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            "The tested VM contains libs that don't have the noexecstack " +
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            "bit set. They must be linked with -z,noexecstack.");
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    }
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}
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