1 /*
2 * Copyright (c) 2020, Red Hat, Inc. 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 /*
26 * @test
27 * @summary Test for Runtime.fieldOffsetOf with 32-bit compressed oops
28 * @library /test/lib
29 *
30 * @run main/othervm -Xmx128m
31 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
32 * -Xint
33 * FieldOffsetOf
34 *
35 * @run main/othervm -Xmx128m
36 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
37 * -XX:TieredStopAtLevel=1
38 * FieldOffsetOf
39 *
40 * @run main/othervm -Xmx128m
41 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
42 * -XX:TieredStopAtLevel=2
43 * FieldOffsetOf
44 *
45 * @run main/othervm -Xmx128m
46 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
47 * -XX:TieredStopAtLevel=3
48 * FieldOffsetOf
49 *
50 * @run main/othervm -Xmx128m
51 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
52 * -XX:TieredStopAtLevel=4
53 * FieldOffsetOf
54 *
55 * @run main/othervm -Xmx128m
56 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
57 * -XX:-TieredCompilation
58 * FieldOffsetOf
59 */
60
61 /*
62 * @test
63 * @summary Test for Runtime.fieldOffsetOf with zero-based compressed oops
64 * @library /test/lib
65 * @requires vm.bits == 64
66 *
67 * @run main/othervm -Xmx4g
68 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
69 * -Xint
70 * FieldOffsetOf
71 *
72 * @run main/othervm -Xmx4g
73 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
74 * -XX:TieredStopAtLevel=1
75 * FieldOffsetOf
76 *
77 * @run main/othervm -Xmx4g
78 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
79 * -XX:TieredStopAtLevel=2
80 * FieldOffsetOf
81 *
82 * @run main/othervm -Xmx4g
83 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
84 * -XX:TieredStopAtLevel=3
85 * FieldOffsetOf
86 *
87 * @run main/othervm -Xmx4g
88 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
89 * -XX:TieredStopAtLevel=4
90 * FieldOffsetOf
91 *
92 * @run main/othervm -Xmx4g
93 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
94 * -XX:-TieredCompilation
95 * FieldOffsetOf
96 */
97
98 /*
99 * @test
100 * @summary Test for Runtime.fieldOffsetOf without compressed oops
101 * @library /test/lib
102 * @requires vm.bits == 64
103 *
104 * @run main/othervm -Xmx128m -XX:-UseCompressedOops
105 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
106 * -Xint
107 * FieldOffsetOf
108 *
109 * @run main/othervm -Xmx128m -XX:-UseCompressedOops
110 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
111 * -XX:TieredStopAtLevel=1
112 * FieldOffsetOf
113 *
114 * @run main/othervm -Xmx128m -XX:-UseCompressedOops
115 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
116 * -XX:TieredStopAtLevel=2
117 * FieldOffsetOf
118 *
119 * @run main/othervm -Xmx128m -XX:-UseCompressedOops
120 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
121 * -XX:TieredStopAtLevel=3
122 * FieldOffsetOf
123 *
124 * @run main/othervm -Xmx128m -XX:-UseCompressedOops
125 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
126 * -XX:TieredStopAtLevel=4
127 * FieldOffsetOf
128 *
129 * @run main/othervm -Xmx128m -XX:-UseCompressedOops
130 * -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure -Xcheck:jni
131 * -XX:-TieredCompilation
132 * FieldOffsetOf
133 */
134
135 import java.lang.reflect.Field;
136 import jdk.test.lib.Platform;
137
138 public class FieldOffsetOf {
139
140 public static void main(String ... args) throws Exception {
141 testInstanceOffsets();
142 testStaticOffsets();
143 testNulls();
144 }
145
146 private static void testInstanceOffsets() throws Exception {
147 int expected = Platform.is64bit() ? 12 : 8;
148
149 Field f = Holder.class.getDeclaredField("x");
150 for (int c = 0; c < RuntimeOfUtil.ITERS; c++) {
151 RuntimeOfUtil.assertEquals(expected, Runtime.fieldOffsetOf(f));
152 }
153 }
154
155 private static void testStaticOffsets() throws Exception {
156 Field f = Holder.class.getDeclaredField("staticX");
157 for (int c = 0; c < RuntimeOfUtil.ITERS; c++) {
158 RuntimeOfUtil.assertNotEquals(0, Runtime.fieldOffsetOf(f));
159 RuntimeOfUtil.assertNotEquals(-1, Runtime.fieldOffsetOf(f));
160 }
161 }
162
163 private static void testNulls() {
164 for (int c = 0; c < RuntimeOfUtil.ITERS; c++) {
165 try {
166 Runtime.fieldOffsetOf(null);
167 RuntimeOfUtil.assertFail();
168 } catch (NullPointerException e) {
169 // expected
170 }
171 }
172 }
173
174 static class Holder {
175 static int staticX;
176 int x;
177 }
178
179 }