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 UseRTMForStackLocks option processing on CPUs without 29 * rtm support and/or on VMs without rtm locking support. 30 * @library /testlibrary /../../test/lib /compiler/testlibrary 31 * @modules java.base/sun.misc 32 * java.management 33 * @build TestUseRTMForStackLocksOptionOnUnsupportedConfig 34 * @run main ClassFileInstaller sun.hotspot.WhiteBox 35 * sun.hotspot.WhiteBox$WhiteBoxPermission 36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 37 * -XX:+WhiteBoxAPI 38 * TestUseRTMForStackLocksOptionOnUnsupportedConfig 39 */ 40 41 import jdk.test.lib.ExitCode; 42 import jdk.test.lib.cli.CommandLineOptionTest; 43 import jdk.test.lib.cli.predicate.AndPredicate; 44 import jdk.test.lib.cli.predicate.NotPredicate; 45 import rtm.predicate.SupportedCPU; 46 import rtm.predicate.SupportedVM; 47 48 public class TestUseRTMForStackLocksOptionOnUnsupportedConfig 49 extends RTMGenericCommandLineOptionTest { 50 private static final String DEFAULT_VALUE = "false"; 51 52 private TestUseRTMForStackLocksOptionOnUnsupportedConfig() { 53 super(new NotPredicate(new AndPredicate(new SupportedCPU(), 54 new SupportedVM())), 55 "UseRTMForStackLocks", true, true, 56 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE, 57 "true"); 58 } 59 60 @Override 61 protected void runX86SupportedVMTestCases() throws Throwable { 62 String shouldFailMessage = String.format("VM option '%s' is " 63 + "experimental%nJVM startup should fail without " 64 + "-XX:+UnlockExperimentalVMOptions flag", optionName); 65 66 // verify that option is experimental 67 CommandLineOptionTest.verifySameJVMStartup( 68 new String[] { experimentalOptionError }, null, 69 shouldFailMessage, shouldFailMessage + "%nError message " 70 + "should be shown", ExitCode.FAIL, 71 prepareOptionValue("true")); 72 73 CommandLineOptionTest.verifySameJVMStartup( 74 new String[]{ experimentalOptionError }, null, 75 shouldFailMessage, shouldFailMessage + "%nError message " 76 + "should be shown", ExitCode.FAIL, 77 prepareOptionValue("false")); 78 79 String shouldPassMessage = String.format("VM option '%s' is " 80 + " experimental%nJVM startup should pass with " 81 + "-XX:+UnlockExperimentalVMOptions flag", optionName); 82 // verify that if we turn it on, then VM output will contain 83 // warning saying that this option could be turned on only 84 // when we use rtm locking 85 CommandLineOptionTest.verifySameJVMStartup( 86 new String[]{ 87 RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING 88 }, null, shouldPassMessage, "There should be warning when try " 89 + "to use rtm for stack lock, but not using rtm locking", 90 ExitCode.OK, 91 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 92 prepareOptionValue("true") 93 ); 94 // verify that options is turned off by default 95 CommandLineOptionTest.verifyOptionValueForSameVM(optionName, 96 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE, 97 String.format("Default value of option '%s' should be '%s'", 98 optionName, DEFAULT_VALUE), 99 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS); 100 // verify that it could not be turned on without rtm locking 101 CommandLineOptionTest.verifyOptionValueForSameVM(optionName, 102 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE, 103 String.format("Value of '%s' shouldn't able to be set to " 104 + "'true' without setting -XX:+UseRTMLocking flag", 105 optionName), 106 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 107 prepareOptionValue("true")); 108 } 109 110 public static void main(String args[]) throws Throwable { 111 new TestUseRTMForStackLocksOptionOnUnsupportedConfig().test(); 112 } 113 }