74 lines
2.7 KiB
Java
74 lines
2.7 KiB
Java
/*
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* Copyright (c) 2018, 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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* @bug 8184732
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* @summary Ensure that special locks never safepoint check.
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.management
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* @build sun.hotspot.WhiteBox
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* @run driver ClassFileInstaller sun.hotspot.WhiteBox
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* @run main NoSafepointVerifier
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*/
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.Platform;
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import sun.hotspot.WhiteBox;
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public class NoSafepointVerifier {
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static void runTest(String test) throws Exception {
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if (Platform.isDebugBuild()){
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ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
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"-Xbootclasspath/a:.",
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"-XX:+UnlockDiagnosticVMOptions",
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"-XX:+WhiteBoxAPI",
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"-XX:-CreateCoredumpOnCrash",
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"NoSafepointVerifier",
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test);
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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output.shouldContain(test);
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}
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}
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static String test1 = "Special locks or below should never safepoint";
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static String test2 = "Possible safepoint reached by thread that does not allow it";
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public static void main(String args[]) throws Exception {
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if (args.length > 0) {
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if (args[0].equals(test1)) {
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WhiteBox.getWhiteBox().assertSpecialLock(/*vm_block*/true, /*safepoint_check_always*/true);
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} else if (args[0].equals(test2)) {
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WhiteBox.getWhiteBox().assertSpecialLock(/*vm_block*/true, /*safepoint_check_always*/false);
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}
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} else {
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runTest(test1);
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runTest(test2);
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}
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}
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}
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