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 UseRTMForStackLocks option processing on CPU with 29 * rtm support when VM supports rtm locking. 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.TestUseRTMForStackLocksOptionOnSupportedConfig 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 TestUseRTMForStackLocksOptionOnSupportedConfig 52 extends CommandLineOptionTest { 53 private static final String DEFAULT_VALUE = "false"; 54 55 private TestUseRTMForStackLocksOptionOnSupportedConfig() { 56 super(new AndPredicate(new SupportedCPU(), new SupportedOS(), new SupportedVM())); 57 } 58 59 @Override 60 public void runTestCases() throws Throwable { 61 String errorMessage 62 = CommandLineOptionTest.getExperimentalOptionErrorMessage( 63 "UseRTMForStackLocks"); 64 String warningMessage 65 = RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING; 66 67 String shouldFailMessage = " VM option 'UseRTMForStackLocks' is " 68 + "experimental%nJVM startup should fail without " 69 + "-XX:+UnlockExperimentalVMOptions flag"; 70 71 CommandLineOptionTest.verifySameJVMStartup( 72 new String[] { errorMessage }, null, shouldFailMessage, 73 shouldFailMessage + "%nError message expected", ExitCode.FAIL, 74 "-XX:+UseRTMForStackLocks"); 75 String shouldPassMessage = " VM option 'UseRTMForStackLocks'" 76 + " is experimental%nJVM startup should pass with " 77 + "-XX:+UnlockExperimentalVMOptions flag"; 78 // verify that we get a warning when trying to use rtm for stack 79 // lock, but not using rtm locking. 80 CommandLineOptionTest.verifySameJVMStartup( 81 new String[] { warningMessage }, null, shouldPassMessage, 82 "There should be warning when trying to use rtm for stack " 83 + "lock, but not using rtm locking", ExitCode.OK, 84 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 85 "-XX:+UseRTMForStackLocks", 86 "-XX:-UseRTMLocking"); 87 // verify that we don't get a warning when no using rtm for stack 88 // lock and not using rtm locking. 89 CommandLineOptionTest.verifySameJVMStartup(null, 90 new String[] { warningMessage }, shouldPassMessage, 91 "There should not be any warning when use both " 92 + "-XX:-UseRTMForStackLocks and -XX:-UseRTMLocking " 93 + "flags", 94 ExitCode.OK, 95 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 96 "-XX:-UseRTMForStackLocks", 97 "-XX:-UseRTMLocking"); 98 // verify that we don't get a warning when using rtm for stack 99 // lock and using rtm locking. 100 CommandLineOptionTest.verifySameJVMStartup(null, 101 new String[] { warningMessage }, shouldPassMessage, 102 "There should not be any warning when use both " 103 + "-XX:+UseRTMForStackLocks and -XX:+UseRTMLocking" 104 + " flags", 105 ExitCode.OK, 106 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 107 "-XX:+UseRTMForStackLocks", 108 "-XX:+UseRTMLocking"); 109 // verify that default value if false 110 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks", 111 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE, 112 "Default value of option 'UseRTMForStackLocks' should be false", 113 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS); 114 // verify that default value is false even with +UseRTMLocking 115 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks", 116 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE, 117 "Default value of option 'UseRTMForStackLocks' should be false", 118 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 119 "-XX:+UseRTMLocking"); 120 // verify that we can turn the option on 121 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks", 122 "true", "Value of option 'UseRTMForStackLocks' should " 123 + "be able to be set as 'true' when both " 124 + "-XX:+UseRTMForStackLocks and " 125 + "-XX:+UseRTMLocking flags used", 126 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 127 "-XX:+UseRTMLocking", "-XX:+UseRTMForStackLocks"); 128 } 129 130 public static void main(String args[]) throws Throwable { 131 new TestUseRTMForStackLocksOptionOnSupportedConfig().test(); 132 } 133 }