1 /* 2 * Copyright (c) 2017, 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 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 sun.hotspot.WhiteBox 32 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 35 * TestCheckJDK 36 */ 37 38 import jdk.test.lib.Asserts; 39 import sun.hotspot.WhiteBox; 40 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 if (filename.endsWith(".so")) { 52 if (!WB.checkLibSpecifiesNoexecstack(filename)) { 53 System.out.println("Library does not have the noexecstack bit set: " + filename); 54 testPassed = false; 55 } 56 } 57 } 58 59 public static void main(String[] args) throws Throwable { 60 String vmInstallDir = System.getProperty("java.home"); 61 62 Files.walk(Paths.get(vmInstallDir)).filter(Files::isRegularFile).forEach(TestCheckJDK::checkExecStack); 63 64 Asserts.assertTrue(testPassed, 65 "The tested VM contains libs that don't have the noexecstack " + 66 "bit set. They must be linked with -z,noexecstack."); 67 } 68 }