1 /* 2 * Copyright (c) 2014, 2020, 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 * @test 26 * @bug 8031320 27 * @summary Verify UseRTMForStackLocks option processing on CPUs or OSs without 28 * rtm support and/or on VMs without rtm locking support. 29 * @library /test/lib / 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 * @requires !vm.rtm.cpu & vm.rtm.compiler 33 * @requires vm.flagless 34 * @run driver compiler.rtm.cli.TestUseRTMForStackLocksOptionOnUnsupportedConfig 35 */ 36 37 package compiler.rtm.cli; 38 39 import jdk.test.lib.process.ExitCode; 40 import jdk.test.lib.cli.CommandLineOptionTest; 41 42 public class TestUseRTMForStackLocksOptionOnUnsupportedConfig 43 extends RTMGenericCommandLineOptionTest { 44 private static final String DEFAULT_VALUE = "false"; 45 46 private TestUseRTMForStackLocksOptionOnUnsupportedConfig() { 47 super("UseRTMForStackLocks", true, true, 48 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE, 49 "true"); 50 } 51 52 @Override 53 protected void runX86SupportedVMTestCases() throws Throwable { 54 String shouldFailMessage = String.format("VM option '%s' is " 55 + "experimental%nJVM startup should fail without " 56 + "-XX:+UnlockExperimentalVMOptions flag", optionName); 57 58 // verify that option is experimental 59 CommandLineOptionTest.verifySameJVMStartup( 60 new String[] { experimentalOptionError }, null, 61 shouldFailMessage, shouldFailMessage + "%nError message " 62 + "should be shown", ExitCode.FAIL, 63 prepareOptionValue("true")); 64 65 CommandLineOptionTest.verifySameJVMStartup( 66 new String[]{ experimentalOptionError }, null, 67 shouldFailMessage, shouldFailMessage + "%nError message " 68 + "should be shown", ExitCode.FAIL, 69 prepareOptionValue("false")); 70 71 String shouldPassMessage = String.format("VM option '%s' is " 72 + " experimental%nJVM startup should pass with " 73 + "-XX:+UnlockExperimentalVMOptions flag", optionName); 74 // verify that if we turn it on, then VM output will contain 75 // warning saying that this option could be turned on only 76 // when we use rtm locking 77 CommandLineOptionTest.verifySameJVMStartup( 78 new String[]{ 79 RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING 80 }, null, shouldPassMessage, "There should be warning when try " 81 + "to use rtm for stack lock, but not using rtm locking", 82 ExitCode.OK, 83 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 84 prepareOptionValue("true") 85 ); 86 // verify that options is turned off by default 87 CommandLineOptionTest.verifyOptionValueForSameVM(optionName, 88 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE, 89 String.format("Default value of option '%s' should be '%s'", 90 optionName, DEFAULT_VALUE), 91 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS); 92 // verify that it could not be turned on without rtm locking 93 CommandLineOptionTest.verifyOptionValueForSameVM(optionName, 94 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE, 95 String.format("Value of '%s' shouldn't able to be set to " 96 + "'true' without setting -XX:+UseRTMLocking flag", 97 optionName), 98 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, 99 prepareOptionValue("true")); 100 } 101 102 public static void main(String args[]) throws Throwable { 103 new TestUseRTMForStackLocksOptionOnUnsupportedConfig().runTestCases(); 104 } 105 }