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/*
* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 8031320
* @summary Verify UseRTMForStackLocks option processing on CPU with
* rtm support when VM supports rtm locking.
* @library /test/lib /
* @modules java.base/jdk.internal.misc
* java.management
* @requires vm.flavor == "server" & !vm.emulatedClient & vm.rtm.cpu & vm.rtm.os
* @build sun.hotspot.WhiteBox
* @run driver ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI
* compiler.rtm.cli.TestUseRTMForStackLocksOptionOnSupportedConfig
*/
package compiler.rtm.cli;
import jdk.test.lib.process.ExitCode;
import jdk.test.lib.cli.CommandLineOptionTest;
public class TestUseRTMForStackLocksOptionOnSupportedConfig {
private static final String DEFAULT_VALUE = "false";
public void runTestCases() throws Throwable {
String errorMessage
= CommandLineOptionTest.getExperimentalOptionErrorMessage(
"UseRTMForStackLocks");
String warningMessage
= RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING;
String shouldFailMessage = " VM option 'UseRTMForStackLocks' is "
+ "experimental%nJVM startup should fail without "
+ "-XX:+UnlockExperimentalVMOptions flag";
CommandLineOptionTest.verifySameJVMStartup(
new String[] { errorMessage }, null, shouldFailMessage,
shouldFailMessage + "%nError message expected", ExitCode.FAIL,
"-XX:+UseRTMForStackLocks");
String shouldPassMessage = " VM option 'UseRTMForStackLocks'"
+ " is experimental%nJVM startup should pass with "
+ "-XX:+UnlockExperimentalVMOptions flag";
// verify that we get a warning when trying to use rtm for stack
// lock, but not using rtm locking.
CommandLineOptionTest.verifySameJVMStartup(
new String[] { warningMessage }, null, shouldPassMessage,
"There should be warning when trying to use rtm for stack "
+ "lock, but not using rtm locking", ExitCode.OK,
CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
"-XX:+UseRTMForStackLocks",
"-XX:-UseRTMLocking");
// verify that we don't get a warning when no using rtm for stack
// lock and not using rtm locking.
CommandLineOptionTest.verifySameJVMStartup(null,
new String[] { warningMessage }, shouldPassMessage,
"There should not be any warning when use both "
+ "-XX:-UseRTMForStackLocks and -XX:-UseRTMLocking "
+ "flags",
ExitCode.OK,
CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
"-XX:-UseRTMForStackLocks",
"-XX:-UseRTMLocking");
// verify that we don't get a warning when using rtm for stack
// lock and using rtm locking.
CommandLineOptionTest.verifySameJVMStartup(null,
new String[] { warningMessage }, shouldPassMessage,
"There should not be any warning when use both "
+ "-XX:+UseRTMForStackLocks and -XX:+UseRTMLocking"
+ " flags",
ExitCode.OK,
CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
"-XX:+UseRTMForStackLocks",
"-XX:+UseRTMLocking");
// verify that default value if false
CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,
"Default value of option 'UseRTMForStackLocks' should be false",
CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
// verify that default value is false even with +UseRTMLocking
CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,
"Default value of option 'UseRTMForStackLocks' should be false",
CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
"-XX:+UseRTMLocking");
// verify that we can turn the option on
CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
"true", "Value of option 'UseRTMForStackLocks' should "
+ "be able to be set as 'true' when both "
+ "-XX:+UseRTMForStackLocks and "
+ "-XX:+UseRTMLocking flags used",
CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
"-XX:+UseRTMLocking", "-XX:+UseRTMForStackLocks");
}
public static void main(String args[]) throws Throwable {
new TestUseRTMForStackLocksOptionOnSupportedConfig().runTestCases();
}
}
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