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 /** 26 * @test 27 * @bug 8031320 28 * @summary Verify processing of UseRTMLocking and UseBiasedLocking 29 * options combination on CPU and VM with rtm support. 30 * @library /test/lib / 31 * @modules java.base/jdk.internal.misc 32 * java.management 33 * 34 * @build sun.hotspot.WhiteBox 35 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 36 * sun.hotspot.WhiteBox$WhiteBoxPermission 37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 38 * -XX:+WhiteBoxAPI 39 * compiler.rtm.cli.TestUseRTMLockingOptionWithBiasedLocking 40 */ 41 42 package compiler.rtm.cli; 43 44 import compiler.testlibrary.rtm.predicate.SupportedCPU; 45 import compiler.testlibrary.rtm.predicate.SupportedVM; 46 import jdk.test.lib.process.ExitCode; 47 import jdk.test.lib.cli.CommandLineOptionTest; 48 import jdk.test.lib.cli.predicate.AndPredicate; 49 50 public class TestUseRTMLockingOptionWithBiasedLocking 51 extends CommandLineOptionTest { 52 private TestUseRTMLockingOptionWithBiasedLocking() { 53 super(new AndPredicate(new SupportedCPU(), new SupportedVM())); 54 } 55 56 @Override 57 public void runTestCases() throws Throwable { 58 String warningMessage 59 = RTMGenericCommandLineOptionTest.RTM_BIASED_LOCKING_WARNING; 60 String shouldPassMessage = "JVM startup should pass with both " 61 + "-XX:+UseRTMLocking and " 62 + "-XX:-UseBiasedLocking flags set without any warnings"; 63 // verify that we will not get a warning 64 CommandLineOptionTest.verifySameJVMStartup(null, 65 new String[] { warningMessage }, shouldPassMessage, 66 shouldPassMessage, ExitCode.OK, 67 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 68 "-XX:+UseRTMLocking", "-XX:-UseBiasedLocking"); 69 70 // verify that we will get a warning 71 CommandLineOptionTest.verifySameJVMStartup( 72 new String[] { warningMessage }, null, 73 "JVM startup should pass when both -XX:+UseRTMLocking and " 74 + "-XX:+UseBiasedLocking flags set", 75 "Flags -XX:+UseRTMLocking" 76 + " and -XX:+UseBiasedLocking conflicts. " 77 + "Warning should be shown.", ExitCode.OK, 78 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 79 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking"); 80 // verify that UseBiasedLocking is false when we use rtm locking 81 CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking", 82 "false", 83 "Value of option 'UseBiasedLocking' should be false if" 84 + "-XX:+UseRTMLocking flag set.", 85 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 86 "-XX:+UseRTMLocking"); 87 // verify that we can't turn on biased locking when 88 // using rtm locking 89 CommandLineOptionTest 90 .verifyOptionValueForSameVM( 91 "UseBiasedLocking", 92 "false", 93 "Value of option 'UseBiasedLocking' should be false if" 94 + "both -XX:+UseRTMLocking and " 95 + "-XX:+UseBiasedLocking flags set.", 96 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 97 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking"); 98 } 99 100 public static void main(String args[]) throws Throwable { 101 new TestUseRTMLockingOptionWithBiasedLocking().test(); 102 } 103 }