1 /*
   2  * Copyright (c) 2014, 2016, 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  * @test
  26  * @bug 8031320
  27  * @summary Verify UseRTMLocking option processing on CPU with rtm support and
  28  *          on VM with rtm-locking support.
  29  * @library /test/lib /
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @requires vm.flavor == "server" & !vm.emulatedClient & vm.rtm.cpu & vm.rtm.os
  33  * @build sun.hotspot.WhiteBox
  34  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  35  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  36  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  37  *                   -XX:+WhiteBoxAPI
  38  *                   compiler.rtm.cli.TestUseRTMLockingOptionOnSupportedConfig
  39  */
  40 
  41 package compiler.rtm.cli;
  42 
  43 import jdk.test.lib.process.ExitCode;
  44 import jdk.test.lib.cli.CommandLineOptionTest;
  45 
  46 public class TestUseRTMLockingOptionOnSupportedConfig {
  47     private static final String DEFAULT_VALUE = "false";
  48 
  49     public void runTestCases() throws Throwable {
  50         String unrecongnizedOption
  51                 =  CommandLineOptionTest.getUnrecognizedOptionErrorMessage(
  52                 "UseRTMLocking");
  53         String shouldPassMessage = "VM option 'UseRTMLocking' is experimental"
  54                 + "%nJVM startup should pass with "
  55                 + "-XX:+UnlockExperimentalVMOptions flag";
  56         // verify that there are no warning or error in VM output
  57         CommandLineOptionTest.verifySameJVMStartup(null,
  58                 new String[]{
  59                         RTMGenericCommandLineOptionTest.RTM_INSTR_ERROR,
  60                         unrecongnizedOption
  61                 }, shouldPassMessage, "There should not be any warning when use"
  62                         + "with -XX:+UnlockExperimentalVMOptions", ExitCode.OK,
  63                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  64                 "-XX:+UseRTMLocking"
  65         );
  66 
  67         CommandLineOptionTest.verifySameJVMStartup(null,
  68                 new String[]{
  69                         RTMGenericCommandLineOptionTest.RTM_INSTR_ERROR,
  70                         unrecongnizedOption
  71                 }, shouldPassMessage, "There should not be any warning when use"
  72                         + "with -XX:+UnlockExperimentalVMOptions", ExitCode.OK,
  73                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  74                 "-XX:-UseRTMLocking"
  75         );
  76         // verify that UseRTMLocking is of by default
  77         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
  78                 TestUseRTMLockingOptionOnSupportedConfig.DEFAULT_VALUE,
  79                 String.format("Default value of option 'UseRTMLocking' should "
  80                     + "be '%s'", DEFAULT_VALUE),
  81                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
  82         // verify that we can change UseRTMLocking value
  83         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
  84                 TestUseRTMLockingOptionOnSupportedConfig.DEFAULT_VALUE,
  85                 String.format("Default value of option 'UseRTMLocking' should "
  86                     + "be '%s'", DEFAULT_VALUE),
  87                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  88                 "-XX:-UseRTMLocking");
  89         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
  90                 "true", "Value of 'UseRTMLocking' should be set "
  91                         + "to 'true' if -XX:+UseRTMLocking flag set",
  92                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
  93                 "-XX:+UseRTMLocking");
  94     }
  95 
  96     public static void main(String args[]) throws Throwable {
  97         new TestUseRTMLockingOptionOnSupportedConfig().runTestCases();
  98     }
  99 }