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         CommandLineOptionTest.verifySameJVMStartup(
  62                 new String[] { errorMessage }, null, ExitCode.FAIL,
  63                 "-XX:+UseRTMForStackLocks");
  64         // verify that we get a warning when trying to use rtm for stack
  65         // lock, but not using rtm locking.
  66         CommandLineOptionTest.verifySameJVMStartup(
  67                 new String[] { warningMessage }, null, ExitCode.OK,
  68                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  69                 "-XX:+UseRTMForStackLocks",
  70                 "-XX:-UseRTMLocking");
  71         // verify that we don't get a warning when no using rtm for stack
  72         // lock and not using rtm locking.
  73         CommandLineOptionTest.verifySameJVMStartup(null,
  74                 new String[] { warningMessage }, ExitCode.OK,
  75                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  76                 "-XX:-UseRTMForStackLocks",
  77                 "-XX:-UseRTMLocking");
  78         // verify that we don't get a warning when using rtm for stack
  79         // lock and using rtm locking.
  80         CommandLineOptionTest.verifySameJVMStartup(null,
  81                 new String[] { warningMessage }, ExitCode.OK,
  82                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  83                 "-XX:+UseRTMForStackLocks",
  84                 "-XX:+UseRTMLocking");
  85         // verify that default value if false
  86         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
  87                 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,
  88                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
  89         // verify that default value is false even with +UseRTMLocking
  90         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
  91                 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,
  92                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  93                 "-XX:+UseRTMLocking");
  94         // verify that we can turn the option on
  95         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
  96                 "true", CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  97                 "-XX:+UseRTMLocking", "-XX:+UseRTMForStackLocks");
  98     }
  99 
 100     public static void main(String args[]) throws Throwable {
 101         new TestUseRTMForStackLocksOptionOnSupportedConfig().test();
 102     }
 103 }