1 /*
2 * Copyright (c) 2014, 2015, 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.
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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).
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15 * You should have received a copy of the GNU General Public License version
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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23 */
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
41 import jdk.test.lib.*;
42 import jdk.test.lib.cli.*;
43 import jdk.test.lib.cli.predicate.AndPredicate;
44 import rtm.predicate.SupportedCPU;
45 import rtm.predicate.SupportedVM;
46
47 public 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 }