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 CPUs without
  29  *          rtm support and/or on VMs without rtm locking support.
  30  * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
  31  * @build TestUseRTMForStackLocksOptionOnUnsupportedConfig
  32  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  33  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  34  *                   -XX:+WhiteBoxAPI
  35  *                    TestUseRTMForStackLocksOptionOnUnsupportedConfig
  36  */
  37 
  38 import com.oracle.java.testlibrary.ExitCode;
  39 import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
  40 import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
  41 import com.oracle.java.testlibrary.cli.predicate.NotPredicate;
  42 import rtm.predicate.SupportedCPU;
  43 import rtm.predicate.SupportedVM;
  44 
  45 public class TestUseRTMForStackLocksOptionOnUnsupportedConfig
  46         extends RTMGenericCommandLineOptionTest {
  47     private static final String DEFAULT_VALUE = "false";
  48 
  49     private TestUseRTMForStackLocksOptionOnUnsupportedConfig() {
  50         super(new NotPredicate(new AndPredicate(new SupportedCPU(),
  51                         new SupportedVM())),
  52                 "UseRTMForStackLocks", true, true,
  53                 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE,
  54                 "true");
  55     }
  56 
  57     @Override
  58     protected void runX86SupportedVMTestCases() throws Throwable {
  59         // verify that option is experimental
  60         CommandLineOptionTest.verifySameJVMStartup(
  61                 new String[]{ experimentalOptionError },
  62                 null, ExitCode.FAIL, prepareOptionValue("true"));
  63 
  64         CommandLineOptionTest.verifySameJVMStartup(
  65                 new String[]{ experimentalOptionError },
  66                 null, ExitCode.FAIL, prepareOptionValue("false"));
  67 
  68         // verify that if we turn it on, then VM output will contain
  69         // warning saying that this option could be turned on only
  70         // when we use rtm locking
  71         CommandLineOptionTest.verifySameJVMStartup(
  72                 new String[]{
  73                     RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING
  74                 },
  75                 null, ExitCode.OK,
  76                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  77                 prepareOptionValue("true")
  78         );
  79         // verify that options is turned off by default
  80         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
  81                 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE,
  82                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
  83         // verify that it could not be turned on without rtm locking
  84         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
  85                 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE,
  86                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  87                 prepareOptionValue("true"));
  88     }
  89 
  90     public static void main(String args[]) throws Throwable {
  91         new TestUseRTMForStackLocksOptionOnUnsupportedConfig().test();
  92     }
  93 }