1 /* 2 * Copyright (c) 2014, 2016, 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 26 * @bug 8031320 27 * @summary Verify processing of UseRTMLocking and UseBiasedLocking 28 * options combination on CPU and VM with rtm support. 29 * @library /test/lib / 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 * @requires vm.flavor == "server" & !vm.emulatedClient & vm.rtm.cpu & vm.rtm.os 33 * @build sun.hotspot.WhiteBox 34 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 35 * sun.hotspot.WhiteBox$WhiteBoxPermission 36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 37 * -XX:+WhiteBoxAPI 38 * compiler.rtm.cli.TestUseRTMLockingOptionWithBiasedLocking 39 */ 40 41 package compiler.rtm.cli; 42 43 import jdk.test.lib.process.ExitCode; 44 import jdk.test.lib.cli.CommandLineOptionTest; 45 46 public class TestUseRTMLockingOptionWithBiasedLocking { 47 48 public void runTestCases() throws Throwable { 49 String warningMessage 50 = RTMGenericCommandLineOptionTest.RTM_BIASED_LOCKING_WARNING; 51 String shouldPassMessage = "JVM startup should pass with both " 52 + "-XX:+UseRTMLocking and " 53 + "-XX:-UseBiasedLocking flags set without any warnings"; 54 // verify that we will not get a warning 55 CommandLineOptionTest.verifySameJVMStartup(null, 56 new String[] { warningMessage }, shouldPassMessage, 57 shouldPassMessage, ExitCode.OK, 58 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 59 "-XX:+UseRTMLocking", "-XX:-UseBiasedLocking"); 60 61 // verify that we will get a warning 62 CommandLineOptionTest.verifySameJVMStartup( 63 new String[] { warningMessage }, null, 64 "JVM startup should pass when both -XX:+UseRTMLocking and " 65 + "-XX:+UseBiasedLocking flags set", 66 "Flags -XX:+UseRTMLocking" 67 + " and -XX:+UseBiasedLocking conflicts. " 68 + "Warning should be shown.", ExitCode.OK, 69 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 70 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking"); 71 // verify that UseBiasedLocking is false when we use rtm locking 72 CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking", 73 "false", 74 "Value of option 'UseBiasedLocking' should be false if" 75 + "-XX:+UseRTMLocking flag set.", 76 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 77 "-XX:+UseRTMLocking"); 78 // verify that we can't turn on biased locking when 79 // using rtm locking 80 CommandLineOptionTest 81 .verifyOptionValueForSameVM( 82 "UseBiasedLocking", 83 "false", 84 "Value of option 'UseBiasedLocking' should be false if" 85 + "both -XX:+UseRTMLocking and " 86 + "-XX:+UseBiasedLocking flags set.", 87 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 88 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking"); 89 } 90 91 public static void main(String args[]) throws Throwable { 92 new TestUseRTMLockingOptionWithBiasedLocking().runTestCases(); 93 } 94 }