jdk-24/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnUnsupportedCPU.java

/*
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 * 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.
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/**
 * @test
 * @bug 8031320
 * @summary Verify UseRTMLocking option processing on CPU without
 *          rtm support.
 * @library /testlibrary /../../test/lib /compiler/testlibrary
 * @modules java.base/sun.misc
 *          java.management
 * @build TestUseRTMLockingOptionOnUnsupportedCPU
 * @run main ClassFileInstaller sun.hotspot.WhiteBox
 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
 *                   -XX:+WhiteBoxAPI TestUseRTMLockingOptionOnUnsupportedCPU
 */

import com.oracle.java.testlibrary.*;
import com.oracle.java.testlibrary.cli.*;
import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
import com.oracle.java.testlibrary.cli.predicate.NotPredicate;
import rtm.predicate.SupportedCPU;
import rtm.predicate.SupportedVM;

public class TestUseRTMLockingOptionOnUnsupportedCPU
        extends CommandLineOptionTest {
    private static final String DEFAULT_VALUE = "false";

    private TestUseRTMLockingOptionOnUnsupportedCPU() {
        super(new AndPredicate(new NotPredicate(new SupportedCPU()),
                new SupportedVM()));
    }

    @Override
    public void runTestCases() throws Throwable {
        String unrecongnizedOption
                = CommandLineOptionTest.getUnrecognizedOptionErrorMessage(
                "UseRTMLocking");
        String errorMessage = RTMGenericCommandLineOptionTest.RTM_INSTR_ERROR;

        if (Platform.isX86() || Platform.isX64()) {
            String shouldFailMessage = "JVM startup should fail with option "
                    + "-XX:+UseRTMLocking on unsupported CPU";
            // verify that we get an error when use +UseRTMLocking
            // on unsupported CPU
            CommandLineOptionTest.verifySameJVMStartup(
                    new String[] { errorMessage },
                    new String[] { unrecongnizedOption }, shouldFailMessage,
                    shouldFailMessage + ". Error message should be shown",
                    ExitCode.FAIL, "-XX:+UseRTMLocking");

            String shouldPassMessage = "JVM startup should pass with option "
                    + "-XX:-UseRTMLocking even on unsupported CPU";
            // verify that we can pass -UseRTMLocking without
            // getting any error messages
            CommandLineOptionTest.verifySameJVMStartup(null, new String[] {
                    errorMessage, unrecongnizedOption }, shouldPassMessage,
                    shouldPassMessage + " without any warnings", ExitCode.OK,
                    "-XX:-UseRTMLocking");

            // verify that UseRTMLocking is false by default
            CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
                    TestUseRTMLockingOptionOnUnsupportedCPU.DEFAULT_VALUE,
                    String.format("Default value of option 'UseRTMLocking' "
                        +"should be '%s'", DEFAULT_VALUE));
        } else {
            String shouldFailMessage = "RTMLocking should be unrecognized"
                    + " on non-x86 CPUs. JVM startup should fail."
                    + "Error message should be shown";
            // verify that on non-x86 CPUs RTMLocking could not be used
            CommandLineOptionTest.verifySameJVMStartup(
                    new String[] { unrecongnizedOption },
                    null, shouldFailMessage, shouldFailMessage,
                    ExitCode.FAIL, "-XX:+UseRTMLocking");

            CommandLineOptionTest.verifySameJVMStartup(
                    new String[] { unrecongnizedOption },
                    null, shouldFailMessage, shouldFailMessage,
                    ExitCode.FAIL, "-XX:-UseRTMLocking");
        }
    }

    public static void main(String args[]) throws Throwable {
        new TestUseRTMLockingOptionOnUnsupportedCPU().test();
    }
}