1 /*
 2  * Copyright (c) 2017, 2022, 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
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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
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22  */
23 
24 /**
25  * @test Testexecstack.java
26  * @summary Searches for all libraries in test VM and checks that they
27  *          have the noexecstack bit set.
28  * @requires (os.family == "linux")
29  * @library /test/lib
30  * @modules java.base/jdk.internal.misc
31  * @build jdk.test.whitebox.WhiteBox
32  * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
33  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
34  *                   TestCheckJDK
35  */
36 
37 import jdk.test.lib.Asserts;
38 import jdk.test.whitebox.WhiteBox;
39 
40 import java.io.File;
41 import java.nio.file.Files;
42 import java.nio.file.Path;
43 import java.nio.file.Paths;
44 
45 public class TestCheckJDK {
46     static boolean testPassed = true;
47     private static final WhiteBox WB = WhiteBox.getWhiteBox();
48 
49     static void checkExecStack(Path file) {
50         String filename = file.toString();
51         Path parent = file.getParent();
52         if ((parent.endsWith("bin") && !filename.endsWith(".diz") && !filename.endsWith(File.separator + "jfrconv")) 
53                 || filename.endsWith(".so")) {
54             if (!WB.checkLibSpecifiesNoexecstack(filename)) {
55                 System.out.println("Library does not have the noexecstack bit set: " + filename);
56                 testPassed = false;
57             }
58         }
59     }
60 
61     public static void main(String[] args) throws Throwable {
62         String vmInstallDir = System.getProperty("java.home");
63 
64         Files.walk(Paths.get(vmInstallDir)).filter(Files::isRegularFile).forEach(TestCheckJDK::checkExecStack);
65 
66         Asserts.assertTrue(testPassed,
67             "The tested VM contains libs that don't have the noexecstack " +
68             "bit set. They must be linked with -z,noexecstack.");
69     }
70 }