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 UseRTMForStackLocks option processing on CPU with 29 * rtm support when VM supports rtm locking. 30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary 31 * @build TestUseRTMForStackLocksOptionOnSupportedConfig 32 * @run main ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 35 * -XX:+WhiteBoxAPI 36 * TestUseRTMForStackLocksOptionOnSupportedConfig 37 */ 38 39 import com.oracle.java.testlibrary.*; 40 import com.oracle.java.testlibrary.cli.*; 41 import com.oracle.java.testlibrary.cli.predicate.AndPredicate; 42 import rtm.predicate.SupportedCPU; 43 import rtm.predicate.SupportedVM; 44 45 public class TestUseRTMForStackLocksOptionOnSupportedConfig 46 extends CommandLineOptionTest { 47 private static final String DEFAULT_VALUE = "false"; 48 49 private TestUseRTMForStackLocksOptionOnSupportedConfig() { 50 super(new AndPredicate(new SupportedVM(), new SupportedCPU())); 51 } 52 53 @Override 54 public void runTestCases() throws Throwable { 55 String errorMessage 56 = CommandLineOptionTest.getExperimentalOptionErrorMessage( 57 "UseRTMForStackLocks"); 58 String warningMessage 59 = RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING; 60 61 String shouldFailMessage = " VM option 'UseRTMForStackLocks' is " 62 + "experimental%nJVM startup should fail without " 63 + "-XX:+UnlockExperimentalVMOptions flag"; 64 65 CommandLineOptionTest.verifySameJVMStartup( 66 new String[] { errorMessage }, null, shouldFailMessage, 67 shouldFailMessage + "%nError message expected", ExitCode.FAIL, 68 "-XX:+UseRTMForStackLocks"); 69 String shouldPassMessage = " VM option 'UseRTMForStackLocks'" 70 + " is experimental%nJVM startup should pass with " 71 + "-XX:+UnlockExperimentalVMOptions flag"; 72 // verify that we get a warning when trying to use rtm for stack 73 // lock, but not using rtm locking. 74 CommandLineOptionTest.verifySameJVMStartup( 75 new String[] { warningMessage }, null, shouldPassMessage, 76 "There should be warning when trying to use rtm for stack " 77 + "lock, but not using rtm locking", ExitCode.OK, 78 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 79 "-XX:+UseRTMForStackLocks", 80 "-XX:-UseRTMLocking"); 81 // verify that we don't get a warning when no using rtm for stack 82 // lock and not using rtm locking. 83 CommandLineOptionTest.verifySameJVMStartup(null, 84 new String[] { warningMessage }, shouldPassMessage, 85 "There should not be any warning when use both " 86 + "-XX:-UseRTMForStackLocks and -XX:-UseRTMLocking " 87 + "flags", 88 ExitCode.OK, 89 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 90 "-XX:-UseRTMForStackLocks", 91 "-XX:-UseRTMLocking"); 92 // verify that we don't get a warning when using rtm for stack 93 // lock and using rtm locking. 94 CommandLineOptionTest.verifySameJVMStartup(null, 95 new String[] { warningMessage }, shouldPassMessage, 96 "There should not be any warning when use both " 97 + "-XX:+UseRTMForStackLocks and -XX:+UseRTMLocking" 98 + " flags", 99 ExitCode.OK, 100 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 101 "-XX:+UseRTMForStackLocks", 102 "-XX:+UseRTMLocking"); 103 // verify that default value if false 104 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks", 105 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE, 106 "Default value of option 'UseRTMForStackLocks' should be false", 107 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS); 108 // verify that default value is false even with +UseRTMLocking 109 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks", 110 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE, 111 "Default value of option 'UseRTMForStackLocks' should be false", 112 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 113 "-XX:+UseRTMLocking"); 114 // verify that we can turn the option on 115 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks", 116 "true", "Value of option 'UseRTMForStackLocks' should " 117 + "be able to be set as 'true' when both " 118 + "-XX:+UseRTMForStackLocks and " 119 + "-XX:+UseRTMLocking flags used", 120 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 121 "-XX:+UseRTMLocking", "-XX:+UseRTMForStackLocks"); 122 } 123 124 public static void main(String args[]) throws Throwable { 125 new TestUseRTMForStackLocksOptionOnSupportedConfig().test(); 126 } 127 }