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.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 TestUseRTMForStackLocksOptionOnSupportedConfig 51 extends CommandLineOptionTest { 52 private static final String DEFAULT_VALUE = "false"; 53 54 private TestUseRTMForStackLocksOptionOnSupportedConfig() { 55 super(new AndPredicate(new SupportedVM(), new SupportedCPU())); 56 } 57 58 @Override 59 public void runTestCases() throws Throwable { 60 String errorMessage 61 = CommandLineOptionTest.getExperimentalOptionErrorMessage( 62 "UseRTMForStackLocks"); 63 String warningMessage 64 = RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING; 65 66 String shouldFailMessage = " VM option 'UseRTMForStackLocks' is " 67 + "experimental%nJVM startup should fail without " 68 + "-XX:+UnlockExperimentalVMOptions flag"; 69 70 CommandLineOptionTest.verifySameJVMStartup( 71 new String[] { errorMessage }, null, shouldFailMessage, 72 shouldFailMessage + "%nError message expected", ExitCode.FAIL, 73 "-XX:+UseRTMForStackLocks"); 74 String shouldPassMessage = " VM option 'UseRTMForStackLocks'" 75 + " is experimental%nJVM startup should pass with " 76 + "-XX:+UnlockExperimentalVMOptions flag"; 77 // verify that we get a warning when trying to use rtm for stack 78 // lock, but not using rtm locking. 79 CommandLineOptionTest.verifySameJVMStartup( 80 new String[] { warningMessage }, null, shouldPassMessage, 81 "There should be warning when trying to use rtm for stack " 82 + "lock, but not using rtm locking", ExitCode.OK, 83 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 84 "-XX:+UseRTMForStackLocks", 85 "-XX:-UseRTMLocking"); 86 // verify that we don't get a warning when no using rtm for stack 87 // lock and not using rtm locking. 88 CommandLineOptionTest.verifySameJVMStartup(null, 89 new String[] { warningMessage }, shouldPassMessage, 90 "There should not be any warning when use both " 91 + "-XX:-UseRTMForStackLocks and -XX:-UseRTMLocking " 92 + "flags", 93 ExitCode.OK, 94 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 95 "-XX:-UseRTMForStackLocks", 96 "-XX:-UseRTMLocking"); 97 // verify that we don't get a warning when using rtm for stack 98 // lock and using rtm locking. 99 CommandLineOptionTest.verifySameJVMStartup(null, 100 new String[] { warningMessage }, shouldPassMessage, 101 "There should not be any warning when use both " 102 + "-XX:+UseRTMForStackLocks and -XX:+UseRTMLocking" 103 + " flags", 104 ExitCode.OK, 105 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 106 "-XX:+UseRTMForStackLocks", 107 "-XX:+UseRTMLocking"); 108 // verify that default value if false 109 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks", 110 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE, 111 "Default value of option 'UseRTMForStackLocks' should be false", 112 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS); 113 // verify that default value is false even with +UseRTMLocking 114 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks", 115 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE, 116 "Default value of option 'UseRTMForStackLocks' should be false", 117 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 118 "-XX:+UseRTMLocking"); 119 // verify that we can turn the option on 120 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks", 121 "true", "Value of option 'UseRTMForStackLocks' should " 122 + "be able to be set as 'true' when both " 123 + "-XX:+UseRTMForStackLocks and " 124 + "-XX:+UseRTMLocking flags used", 125 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 126 "-XX:+UseRTMLocking", "-XX:+UseRTMForStackLocks"); 127 } 128 129 public static void main(String args[]) throws Throwable { 130 new TestUseRTMForStackLocksOptionOnSupportedConfig().test(); 131 } 132 }