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         // verify that we will not get a warning
  55         CommandLineOptionTest.verifySameJVMStartup(null,
  56                 new String[] { warningMessage }, ExitCode.OK,
  57                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  58                 "-XX:+UseRTMLocking", "-XX:-UseBiasedLocking");
  59         // verify that we will get a warning
  60         CommandLineOptionTest.verifySameJVMStartup(
  61                 new String[] { warningMessage }, null, ExitCode.OK,
  62                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  63                 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
  64         // verify that UseBiasedLocking is false when we use rtm locking
  65         CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking",
  66                 "false", CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  67                 "-XX:+UseRTMLocking");
  68         // verify that we can't turn on biased locking when
  69         // using rtm locking
  70         CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking",
  71                 "false", CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  72                 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
  73     }
  74 
  75     public static void main(String args[]) throws Throwable {
  76         new TestUseRTMLockingOptionWithBiasedLocking().test();
  77     }
  78 }