1 /*
2 * Copyright (c) 2014, 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
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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 /testlibrary/whitebox /compiler/testlibrary
31 * @build TestUseRTMForStackLocksOptionOnSupportedConfig
32 * @run main ClassFileInstaller sun.hotspot.WhiteBox
33 * sun.hotspot.WhiteBox$WhiteBoxPermission
34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
35 * -XX:+WhiteBoxAPI
36 * TestUseRTMForStackLocksOptionOnSupportedConfig
37 */
38
39 import com.oracle.java.testlibrary.*;
40 import com.oracle.java.testlibrary.cli.*;
41 import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
42 import rtm.predicate.SupportedCPU;
43 import rtm.predicate.SupportedVM;
44
45 public class TestUseRTMForStackLocksOptionOnSupportedConfig
46 extends CommandLineOptionTest {
47 private static final String DEFAULT_VALUE = "false";
48
49 private TestUseRTMForStackLocksOptionOnSupportedConfig() {
50 super(new AndPredicate(new SupportedVM(), new SupportedCPU()));
51 }
52
53 @Override
54 public void runTestCases() throws Throwable {
55 String errorMessage
56 = CommandLineOptionTest.getExperimentalOptionErrorMessage(
57 "UseRTMForStackLocks");
58 String warningMessage
59 = RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING;
60
61 String shouldFailMessage = " VM option 'UseRTMForStackLocks' is "
62 + "experimental%nJVM startup should fail without "
63 + "-XX:+UnlockExperimentalVMOptions flag";
64
65 CommandLineOptionTest.verifySameJVMStartup(
66 new String[] { errorMessage }, null, shouldFailMessage,
67 shouldFailMessage + "%nError message expected", ExitCode.FAIL,
68 "-XX:+UseRTMForStackLocks");
69 String shouldPassMessage = " VM option 'UseRTMForStackLocks'"
70 + " is experimental%nJVM startup should pass with "
71 + "-XX:+UnlockExperimentalVMOptions flag";
72 // verify that we get a warning when trying to use rtm for stack
73 // lock, but not using rtm locking.
74 CommandLineOptionTest.verifySameJVMStartup(
75 new String[] { warningMessage }, null, shouldPassMessage,
76 "There should be warning when trying to use rtm for stack "
77 + "lock, but not using rtm locking", ExitCode.OK,
78 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
79 "-XX:+UseRTMForStackLocks",
80 "-XX:-UseRTMLocking");
81 // verify that we don't get a warning when no using rtm for stack
82 // lock and not using rtm locking.
83 CommandLineOptionTest.verifySameJVMStartup(null,
84 new String[] { warningMessage }, shouldPassMessage,
85 "There should not be any warning when use both "
86 + "-XX:-UseRTMForStackLocks and -XX:-UseRTMLocking "
87 + "flags",
88 ExitCode.OK,
89 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
90 "-XX:-UseRTMForStackLocks",
91 "-XX:-UseRTMLocking");
92 // verify that we don't get a warning when using rtm for stack
93 // lock and using rtm locking.
94 CommandLineOptionTest.verifySameJVMStartup(null,
95 new String[] { warningMessage }, shouldPassMessage,
96 "There should not be any warning when use both "
97 + "-XX:+UseRTMForStackLocks and -XX:+UseRTMLocking"
98 + " flags",
99 ExitCode.OK,
100 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
101 "-XX:+UseRTMForStackLocks",
102 "-XX:+UseRTMLocking");
103 // verify that default value if false
104 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
105 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,
106 "Default value of option 'UseRTMForStackLocks' should be false",
107 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
108 // verify that default value is false even with +UseRTMLocking
109 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
110 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,
111 "Default value of option 'UseRTMForStackLocks' should be false",
112 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
113 "-XX:+UseRTMLocking");
114 // verify that we can turn the option on
115 CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
116 "true", "Value of option 'UseRTMForStackLocks' should "
117 + "be able to be set as 'true' when both "
118 + "-XX:+UseRTMForStackLocks and "
119 + "-XX:+UseRTMLocking flags used",
120 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
121 "-XX:+UseRTMLocking", "-XX:+UseRTMForStackLocks");
122 }
123
124 public static void main(String args[]) throws Throwable {
125 new TestUseRTMForStackLocksOptionOnSupportedConfig().test();
126 }
127 }