TestUseRTMForStackLocksOptionOnSupportedConfig.java revision 8359:ed6389f70257 
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24
25/**
26 * @test
27 * @bug 8031320
28 * @summary Verify UseRTMForStackLocks option processing on CPU with
29 *          rtm support when VM supports rtm locking.
30 * @library /testlibrary /../../test/lib /compiler/testlibrary
31 * @modules java.base/sun.misc
32 *          java.management
33 * @build TestUseRTMForStackLocksOptionOnSupportedConfig
34 * @run main ClassFileInstaller sun.hotspot.WhiteBox
35 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
37 *                   -XX:+WhiteBoxAPI
38 *                   TestUseRTMForStackLocksOptionOnSupportedConfig
39 */
40
41import jdk.test.lib.*;
42import jdk.test.lib.cli.*;
43import jdk.test.lib.cli.predicate.AndPredicate;
44import rtm.predicate.SupportedCPU;
45import rtm.predicate.SupportedVM;
46
47public class TestUseRTMForStackLocksOptionOnSupportedConfig
48        extends CommandLineOptionTest {
49    private static final String DEFAULT_VALUE = "false";
50
51    private TestUseRTMForStackLocksOptionOnSupportedConfig() {
52        super(new AndPredicate(new SupportedVM(), new SupportedCPU()));
53    }
54
55    @Override
56    public void runTestCases() throws Throwable {
57        String errorMessage
58                = CommandLineOptionTest.getExperimentalOptionErrorMessage(
59                "UseRTMForStackLocks");
60        String warningMessage
61                = RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING;
62
63        String shouldFailMessage = " VM option 'UseRTMForStackLocks' is "
64                + "experimental%nJVM startup should fail without "
65                + "-XX:+UnlockExperimentalVMOptions flag";
66
67        CommandLineOptionTest.verifySameJVMStartup(
68                new String[] { errorMessage }, null, shouldFailMessage,
69                shouldFailMessage + "%nError message expected", ExitCode.FAIL,
70                "-XX:+UseRTMForStackLocks");
71        String shouldPassMessage = " VM option 'UseRTMForStackLocks'"
72                + " is experimental%nJVM startup should pass with "
73                + "-XX:+UnlockExperimentalVMOptions flag";
74        // verify that we get a warning when trying to use rtm for stack
75        // lock, but not using rtm locking.
76        CommandLineOptionTest.verifySameJVMStartup(
77                new String[] { warningMessage }, null, shouldPassMessage,
78                "There should be warning when trying to use rtm for stack "
79                        + "lock, but not using rtm locking", ExitCode.OK,
80                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
81                "-XX:+UseRTMForStackLocks",
82                "-XX:-UseRTMLocking");
83        // verify that we don't get a warning when no using rtm for stack
84        // lock and not using rtm locking.
85        CommandLineOptionTest.verifySameJVMStartup(null,
86                new String[] { warningMessage }, shouldPassMessage,
87                "There should not be any warning when use both "
88                        + "-XX:-UseRTMForStackLocks and -XX:-UseRTMLocking "
89                        + "flags",
90                ExitCode.OK,
91                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
92                "-XX:-UseRTMForStackLocks",
93                "-XX:-UseRTMLocking");
94        // verify that we don't get a warning when using rtm for stack
95        // lock and using rtm locking.
96        CommandLineOptionTest.verifySameJVMStartup(null,
97                new String[] { warningMessage }, shouldPassMessage,
98                "There should not be any warning when use both "
99                        + "-XX:+UseRTMForStackLocks and -XX:+UseRTMLocking"
100                        + " flags",
101                ExitCode.OK,
102                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
103                "-XX:+UseRTMForStackLocks",
104                "-XX:+UseRTMLocking");
105        // verify that default value if false
106        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
107                TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,
108                "Default value of option 'UseRTMForStackLocks' should be false",
109                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
110        // verify that default value is false even with +UseRTMLocking
111        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
112                TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,
113                "Default value of option 'UseRTMForStackLocks' should be false",
114                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
115                "-XX:+UseRTMLocking");
116        // verify that we can turn the option on
117        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
118                        "true", "Value of option 'UseRTMForStackLocks' should "
119                                + "be able to be set as 'true' when both "
120                                + "-XX:+UseRTMForStackLocks and "
121                                + "-XX:+UseRTMLocking flags used",
122                        CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
123                        "-XX:+UseRTMLocking", "-XX:+UseRTMForStackLocks");
124    }
125
126    public static void main(String args[]) throws Throwable {
127        new TestUseRTMForStackLocksOptionOnSupportedConfig().test();
128    }
129}
130