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.SupportedOS; 46 import compiler.testlibrary.rtm.predicate.SupportedVM; 47 import jdk.test.lib.process.ExitCode; 48 import jdk.test.lib.cli.CommandLineOptionTest; 49 import jdk.test.lib.cli.predicate.AndPredicate; 50 51 public class TestUseRTMLockingOptionWithBiasedLocking 52 extends CommandLineOptionTest { 53 private TestUseRTMLockingOptionWithBiasedLocking() { 54 super(new AndPredicate(new SupportedCPU(), new SupportedOS(), new SupportedVM())); 55 } 56 57 @Override 58 public void runTestCases() throws Throwable { 59 String warningMessage 60 = RTMGenericCommandLineOptionTest.RTM_BIASED_LOCKING_WARNING; 61 String shouldPassMessage = "JVM startup should pass with both " 62 + "-XX:+UseRTMLocking and " 63 + "-XX:-UseBiasedLocking flags set without any warnings"; 64 // verify that we will not get a warning 65 CommandLineOptionTest.verifySameJVMStartup(null, 66 new String[] { warningMessage }, shouldPassMessage, 67 shouldPassMessage, ExitCode.OK, 68 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 69 "-XX:+UseRTMLocking", "-XX:-UseBiasedLocking"); 70 71 // verify that we will get a warning 72 CommandLineOptionTest.verifySameJVMStartup( 73 new String[] { warningMessage }, null, 74 "JVM startup should pass when both -XX:+UseRTMLocking and " 75 + "-XX:+UseBiasedLocking flags set", 76 "Flags -XX:+UseRTMLocking" 77 + " and -XX:+UseBiasedLocking conflicts. " 78 + "Warning should be shown.", ExitCode.OK, 79 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 80 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking"); 81 // verify that UseBiasedLocking is false when we use rtm locking 82 CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking", 83 "false", 84 "Value of option 'UseBiasedLocking' should be false if" 85 + "-XX:+UseRTMLocking flag set.", 86 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 87 "-XX:+UseRTMLocking"); 88 // verify that we can't turn on biased locking when 89 // using rtm locking 90 CommandLineOptionTest 91 .verifyOptionValueForSameVM( 92 "UseBiasedLocking", 93 "false", 94 "Value of option 'UseBiasedLocking' should be false if" 95 + "both -XX:+UseRTMLocking and " 96 + "-XX:+UseBiasedLocking flags set.", 97 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 98 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking"); 99 } 100 101 public static void main(String args[]) throws Throwable { 102 new TestUseRTMLockingOptionWithBiasedLocking().test(); 103 } 104 }