1 /* 2 * Copyright (c) 2014, 2015, 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 /testlibrary /../../test/lib /compiler/testlibrary 31 * @modules java.base/sun.misc 32 * java.management 33 * @build TestUseRTMLockingOptionWithBiasedLocking 34 * @run main ClassFileInstaller sun.hotspot.WhiteBox 35 * sun.hotspot.WhiteBox$WhiteBoxPermission 36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 37 * -XX:+WhiteBoxAPI TestUseRTMLockingOptionWithBiasedLocking 38 */ 39 40 import com.oracle.java.testlibrary.*; 41 import com.oracle.java.testlibrary.cli.*; 42 import com.oracle.java.testlibrary.cli.predicate.AndPredicate; 43 import rtm.predicate.SupportedCPU; 44 import rtm.predicate.SupportedVM; 45 46 public class TestUseRTMLockingOptionWithBiasedLocking 47 extends CommandLineOptionTest { 48 private TestUseRTMLockingOptionWithBiasedLocking() { 49 super(new AndPredicate(new SupportedCPU(), new SupportedVM())); 50 } 51 52 @Override 53 public void runTestCases() throws Throwable { 54 String warningMessage 55 = RTMGenericCommandLineOptionTest.RTM_BIASED_LOCKING_WARNING; 56 String shouldPassMessage = "JVM startup should pass with both " 57 + "-XX:+UseRTMLocking and " 58 + "-XX:-UseBiasedLocking flags set without any warnings"; 59 // verify that we will not get a warning 60 CommandLineOptionTest.verifySameJVMStartup(null, 61 new String[] { warningMessage }, shouldPassMessage, 62 shouldPassMessage, ExitCode.OK, 63 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 64 "-XX:+UseRTMLocking", "-XX:-UseBiasedLocking"); 65 66 // verify that we will get a warning 67 CommandLineOptionTest.verifySameJVMStartup( 68 new String[] { warningMessage }, null, 69 "JVM startup should pass when both -XX:+UseRTMLocking and " 70 + "-XX:+UseBiasedLocking flags set", 71 "Flags -XX:+UseRTMLocking" 72 + " and -XX:+UseBiasedLocking conflicts. " 73 + "Warning should be shown.", ExitCode.OK, 74 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 75 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking"); 76 // verify that UseBiasedLocking is false when we use rtm locking 77 CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking", 78 "false", 79 "Value of option 'UseBiasedLocking' should be false if" 80 + "-XX:+UseRTMLocking flag set.", 81 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 82 "-XX:+UseRTMLocking"); 83 // verify that we can't turn on biased locking when 84 // using rtm locking 85 CommandLineOptionTest 86 .verifyOptionValueForSameVM( 87 "UseBiasedLocking", 88 "false", 89 "Value of option 'UseBiasedLocking' should be false if" 90 + "both -XX:+UseRTMLocking and " 91 + "-XX:+UseBiasedLocking flags set.", 92 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 93 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking"); 94 } 95 96 public static void main(String args[]) throws Throwable { 97 new TestUseRTMLockingOptionWithBiasedLocking().test(); 98 } 99 }