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 processing of UseRTMLocking and UseBiasedLocking
  29  *          options combination on CPU and VM with rtm support.
  30  * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
  31  * @build TestUseRTMLockingOptionWithBiasedLocking
  32  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  33  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  35  *                   -XX:+WhiteBoxAPI TestUseRTMLockingOptionWithBiasedLocking
  36  */
  37 
  38 import com.oracle.java.testlibrary.*;
  39 import com.oracle.java.testlibrary.cli.*;
  40 import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
  41 import rtm.predicate.SupportedCPU;
  42 import rtm.predicate.SupportedVM;
  43 
  44 public class TestUseRTMLockingOptionWithBiasedLocking
  45         extends CommandLineOptionTest {
  46     private TestUseRTMLockingOptionWithBiasedLocking() {
  47         super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
  48     }
  49 
  50     @Override
  51     public void runTestCases() throws Throwable {
  52         String warningMessage
  53                 = RTMGenericCommandLineOptionTest.RTM_BIASED_LOCKING_WARNING;
  54         String shouldPassMessage = "JVM startup should pass with both "
  55                 + "-XX:+UseRTMLocking and "
  56                 + "-XX:-UseBiasedLocking flags set without any warnings";
  57         // verify that we will not get a warning
  58         CommandLineOptionTest.verifySameJVMStartup(null,
  59                 new String[] { warningMessage }, shouldPassMessage,
  60                 shouldPassMessage, ExitCode.OK,
  61                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  62                 "-XX:+UseRTMLocking", "-XX:-UseBiasedLocking");
  63 
  64         // verify that we will get a warning
  65         CommandLineOptionTest.verifySameJVMStartup( 
  66                 new String[] { warningMessage }, null,
  67                 "JVM startup should pass when both -XX:+UseRTMLocking and "
  68                         + "-XX:+UseBiasedLocking flags set",
  69                 "Flags -XX:+UseRTMLocking"
  70                         + " and -XX:+UseBiasedLocking conflicts. "
  71                         + "Warning should be shown.", ExitCode.OK,
  72                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  73                 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
  74         // verify that UseBiasedLocking is false when we use rtm locking
  75         CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking",
  76                 "false",
  77                 "Value of option 'UseBiasedLocking' should be false if"
  78                         + "-XX:+UseRTMLocking flag set.",
  79                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  80                 "-XX:+UseRTMLocking");
  81         // verify that we can't turn on biased locking when
  82         // using rtm locking
  83         CommandLineOptionTest
  84                 .verifyOptionValueForSameVM(
  85                         "UseBiasedLocking",
  86                         "false",
  87                         "Value of option 'UseBiasedLocking' should be false if"
  88                                 + "both -XX:+UseRTMLocking and "
  89                                 + "-XX:+UseBiasedLocking flags set.",
  90                         CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  91                         "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
  92     }
  93 
  94     public static void main(String args[]) throws Throwable {
  95         new TestUseRTMLockingOptionWithBiasedLocking().test();
  96     }
  97 }