| /* |
| * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @bug 8031320 |
| * @summary Verify processing of UseRTMLocking and UseBiasedLocking |
| * options combination on CPU and VM with rtm support. |
| * @library /test/lib / |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @requires vm.flavor == "server" & !vm.emulatedClient & vm.rtm.cpu & vm.rtm.os |
| * @build sun.hotspot.WhiteBox |
| * @run driver ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * compiler.rtm.cli.TestUseRTMLockingOptionWithBiasedLocking |
| */ |
| |
| package compiler.rtm.cli; |
| |
| import jdk.test.lib.process.ExitCode; |
| import jdk.test.lib.cli.CommandLineOptionTest; |
| |
| public class TestUseRTMLockingOptionWithBiasedLocking { |
| |
| public void runTestCases() throws Throwable { |
| String warningMessage |
| = RTMGenericCommandLineOptionTest.RTM_BIASED_LOCKING_WARNING; |
| String shouldPassMessage = "JVM startup should pass with both " |
| + "-XX:+UseRTMLocking and " |
| + "-XX:-UseBiasedLocking flags set without any warnings"; |
| // verify that we will not get a warning |
| CommandLineOptionTest.verifySameJVMStartup(null, |
| new String[] { warningMessage }, shouldPassMessage, |
| shouldPassMessage, ExitCode.OK, |
| CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, |
| "-XX:+UseRTMLocking", "-XX:-UseBiasedLocking"); |
| |
| // verify that we will get a warning |
| CommandLineOptionTest.verifySameJVMStartup( |
| new String[] { warningMessage }, null, |
| "JVM startup should pass when both -XX:+UseRTMLocking and " |
| + "-XX:+UseBiasedLocking flags set", |
| "Flags -XX:+UseRTMLocking" |
| + " and -XX:+UseBiasedLocking conflicts. " |
| + "Warning should be shown.", ExitCode.OK, |
| CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, |
| "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking"); |
| // verify that UseBiasedLocking is false when we use rtm locking |
| CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking", |
| "false", |
| "Value of option 'UseBiasedLocking' should be false if" |
| + "-XX:+UseRTMLocking flag set.", |
| CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, |
| "-XX:+UseRTMLocking"); |
| // verify that we can't turn on biased locking when |
| // using rtm locking |
| CommandLineOptionTest |
| .verifyOptionValueForSameVM( |
| "UseBiasedLocking", |
| "false", |
| "Value of option 'UseBiasedLocking' should be false if" |
| + "both -XX:+UseRTMLocking and " |
| + "-XX:+UseBiasedLocking flags set.", |
| CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, |
| "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking"); |
| } |
| |
| public static void main(String args[]) throws Throwable { |
| new TestUseRTMLockingOptionWithBiasedLocking().runTestCases(); |
| } |
| } |