1 /*
2 * Copyright (c) 2017, 2019, 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
21 * questions.
22 */
23
24 /**
25 * @test
26 * @bug 8190198
27 * @summary Test clhsdb longConstant command
28 * @requires vm.hasSA
29 * @library /test/lib
30 * @run main/othervm ClhsdbLongConstant
31 */
32
33 import java.util.HashMap;
34 import java.util.List;
35 import java.util.Map;
36
37 import jdk.test.lib.apps.LingeredApp;
38 import jdk.test.lib.Platform;
39 import jtreg.SkippedException;
40
41 public class ClhsdbLongConstant {
42
43 public static void main(String[] args) throws Exception {
44 System.out.println("Starting ClhsdbLongConstant test");
45
46 LingeredApp theApp = null;
47 try {
48 ClhsdbLauncher test = new ClhsdbLauncher();
49 theApp = LingeredApp.startApp();
50 System.out.println("Started LingeredApp with pid " + theApp.getPid());
51
52 List<String> cmds = List.of(
53 "longConstant",
54 "longConstant markWord::locked_value",
55 "longConstant markWord::lock_bits",
56 "longConstant jtreg::test 6",
57 "longConstant jtreg::test");
58
59 Map<String, List<String>> expStrMap = new HashMap<>();
60 expStrMap.put("longConstant", List.of(
61 "longConstant markWord::locked_value",
62 "longConstant markWord::lock_bits",
63 "InvocationCounter::count_increment",
64 "markWord::epoch_mask_in_place"));
65 expStrMap.put("longConstant markWord::locked_value", List.of(
66 "longConstant markWord::locked_value"));
67 expStrMap.put("longConstant markWord::lock_bits", List.of(
68 "longConstant markWord::lock_bits"));
69 expStrMap.put("longConstant jtreg::test", List.of(
70 "longConstant jtreg::test 6"));
71
72 Map<String, List<String>> unExpStrMap = new HashMap<>();
73 unExpStrMap.put("longConstant jtreg::test", List.of(
74 "Error: java.lang.RuntimeException: No long constant named"));
75
76 String longConstantOutput = test.run(theApp.getPid(), cmds, expStrMap, unExpStrMap);
77
78 checkForTruncation(longConstantOutput);
79 } catch (SkippedException e) {
80 throw e;
81 } catch (Exception ex) {
82 throw new RuntimeException("Test ERROR " + ex, ex);
83 } finally {
84 LingeredApp.stopApp(theApp);
85 }
86 System.out.println("Test PASSED");
87 }
88
89 private static void checkForTruncation(String longConstantOutput) throws Exception {
90
91 // Expected values obtained from the hash_mask_in_place definition in markWord.hpp
92
93 // Expected output snippet is of the form (on x64-64):
94 // ...
95 // longConstant VM_Version::CPU_SHA 17179869184
96 // longConstant markWord::biased_lock_bits 1
97 // longConstant markWord::age_shift 3
98 // longConstant markWord::hash_mask_in_place 549755813632
99 // ...
100
101 checkLongValue("markWord::hash_mask_in_place",
102 longConstantOutput,
103 Platform.is64bit() ? 549755813632L: 4294967168L);
104
105 String arch = System.getProperty("os.arch");
106 if (arch.equals("amd64") || arch.equals("i386") || arch.equals("x86")) {
107 // Expected value obtained from the CPU_SHA definition in vm_version_x86.hpp
108 checkLongValue("VM_Version::CPU_SHA",
109 longConstantOutput,
110 17179869184L);
111 }
112 }
113
114 private static void checkLongValue(String constName, String longConstantOutput,
115 long checkValue) throws Exception {
116
117 String[] snippets = longConstantOutput.split(constName);
118 String[] words = snippets[1].split("\\R");
119 long readValue = Long.parseLong(words[0].trim());
120 if (readValue != checkValue) {
121 throw new Exception ("Reading " + constName + ". Expected " + checkValue +
122 ". Obtained " + readValue + " instead.");
123 }
124 }
125 }