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