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  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  35  *                   -XX:+WhiteBoxAPI
  36  *                    TestUseRTMForStackLocksOptionOnUnsupportedConfig
  37  */
  38 
  39 import com.oracle.java.testlibrary.ExitCode;
  40 import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
  41 import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
  42 import com.oracle.java.testlibrary.cli.predicate.NotPredicate;
  43 import rtm.predicate.SupportedCPU;
  44 import rtm.predicate.SupportedVM;
  45 
  46 public class TestUseRTMForStackLocksOptionOnUnsupportedConfig
  47         extends RTMGenericCommandLineOptionTest {
  48     private static final String DEFAULT_VALUE = "false";
  49 
  50     private TestUseRTMForStackLocksOptionOnUnsupportedConfig() {
  51         super(new NotPredicate(new AndPredicate(new SupportedCPU(),
  52                         new SupportedVM())),
  53                 "UseRTMForStackLocks", true, true,
  54                 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE,
  55                 "true");
  56     }
  57 
  58     @Override
  59     protected void runX86SupportedVMTestCases() throws Throwable {
  60         // verify that option is experimental
  61         CommandLineOptionTest.verifySameJVMStartup(
  62                 new String[]{ experimentalOptionError },
  63                 null, ExitCode.FAIL, prepareOptionValue("true"));
  64 
  65         CommandLineOptionTest.verifySameJVMStartup(
  66                 new String[]{ experimentalOptionError },
  67                 null, ExitCode.FAIL, prepareOptionValue("false"));
  68 
  69         // verify that if we turn it on, then VM output will contain
  70         // warning saying that this option could be turned on only
  71         // when we use rtm locking
  72         CommandLineOptionTest.verifySameJVMStartup(
  73                 new String[]{
  74                     RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING
  75                 },
  76                 null, ExitCode.OK,
  77                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  78                 prepareOptionValue("true")
  79         );
  80         // verify that options is turned off by default
  81         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
  82                 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE,
  83                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
  84         // verify that it could not be turned on without rtm locking
  85         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
  86                 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE,
  87                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  88                 prepareOptionValue("true"));
  89     }
  90 
  91     public static void main(String args[]) throws Throwable {
  92         new TestUseRTMForStackLocksOptionOnUnsupportedConfig().test();
  93     }
  94 }