1 /*
2 * Copyright (c) 2016, 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 /*
26 * @test
27 * @bug 8138708
28 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64")
29 * @library /testlibrary /test/lib /
30 * @library ../common/patches
31 * @modules java.base/jdk.internal.misc
32 * java.base/jdk.internal.org.objectweb.asm
33 * java.base/jdk.internal.org.objectweb.asm.tree
34 * jdk.vm.ci/jdk.vm.ci.hotspot
35 * jdk.vm.ci/jdk.vm.ci.meta
36 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
37 * @build sun.hotspot.WhiteBox
38 * compiler.jvmci.compilerToVM.ResolveFieldInPoolTest
39 * @run main ClassFileInstaller sun.hotspot.WhiteBox
40 * sun.hotspot.WhiteBox$WhiteBoxPermission
41 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
42 * -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
43 * compiler.jvmci.compilerToVM.ResolveFieldInPoolTest
44 */
45
46 package compiler.jvmci.compilerToVM;
47
48 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
49 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
50 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.*;
51 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
52 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
53 import java.lang.reflect.Field;
54 import java.util.HashMap;
55 import java.util.Map;
56 import jdk.internal.org.objectweb.asm.Opcodes;
57 import jdk.vm.ci.hotspot.CompilerToVMHelper;
58 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
59 import jdk.vm.ci.meta.ConstantPool;
60 import jdk.test.lib.Asserts;
61 import jdk.test.lib.Utils;
62 import sun.misc.Unsafe;
63
64 /**
65 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolveFieldInPool} method
66 */
67 public class ResolveFieldInPoolTest {
68
69 private static final Unsafe UNSAFE = Utils.getUnsafe();
70
71 public static void main(String[] args) throws Exception {
72 Map<ConstantTypes, Validator> typeTests = new HashMap<>();
73 typeTests.put(CONSTANT_FIELDREF, ResolveFieldInPoolTest::validate);
74 ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
75 testCase.test();
76 // The next "Class.forName" and repeating "testCase.test()"
77 // are here for the following reason.
78 // The first test run is without dummy class initialization,
79 // which means no constant pool cache exists.
80 // The second run is with initialized class (with constant pool cache available).
81 // Some CompilerToVM methods require different input
82 // depending on whether CP cache exists or not.
83 for (DummyClasses dummy : DummyClasses.values()) {
84 Class.forName(dummy.klass.getName());
85 }
86 testCase.test();
87 }
88
89 private static void validate(ConstantPool constantPoolCTVM,
90 ConstantTypes cpType,
91 DummyClasses dummyClass,
92 int cpi) {
93 TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);
94 if (entry == null) {
95 return;
96 }
97 int index = cpi;
98 String cached = "";
99 int cpci = dummyClass.getCPCacheIndex(cpi);
100 if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {
101 index = cpci;
102 cached = "cached ";
103 }
104 for (int j = 0; j < entry.opcodes.length; j++) {
105 long[] info = new long[2];
106 HotSpotResolvedObjectType fieldToVerify
107 = CompilerToVMHelper.resolveFieldInPool(constantPoolCTVM,
108 index,
109 entry.opcodes[j],
110 info);
111 String msg = String.format("Object returned by resolveFieldInPool method"
112 + " for %sindex %d should not be null",
113 cached,
114 index);
115 Asserts.assertNotNull(fieldToVerify, msg);
116 String classNameToRefer = entry.klass;
117 String fieldToVerifyKlassToString = fieldToVerify.klass().toValueString();
118 if (!fieldToVerifyKlassToString.contains(classNameToRefer)) {
119 msg = String.format("String representation \"%s\" of the object"
120 + " returned by resolveFieldInPool method"
121 + " for index %d does not contain a field's class name,"
122 + " should contain %s",
123 fieldToVerifyKlassToString,
124 index,
125 classNameToRefer);
126 throw new AssertionError(msg);
127 }
128 msg = String.format("Access flags returned by resolveFieldInPool"
129 + " method are wrong for the field %s.%s"
130 + " at %sindex %d",
131 entry.klass,
132 entry.name,
133 cached,
134 index);
135 Asserts.assertEQ(info[0], entry.accFlags, msg);
136 if (cpci == -1) {
137 return;
138 }
139 Class classOfTheField = null;
140 Field fieldToRefer = null;
141 try {
142 classOfTheField = Class.forName(classNameToRefer.replaceAll("/", "\\."));
143 fieldToRefer = classOfTheField.getDeclaredField(entry.name);
144 fieldToRefer.setAccessible(true);
145 } catch (Exception ex) {
146 throw new Error("Unexpected exception", ex);
147 }
148 long offsetToRefer;
149 if ((entry.accFlags & Opcodes.ACC_STATIC) != 0) {
150 offsetToRefer = UNSAFE.staticFieldOffset(fieldToRefer);
151 } else {
152 offsetToRefer = UNSAFE.objectFieldOffset(fieldToRefer);
153 }
154 msg = String.format("Field offset returned by resolveFieldInPool"
155 + " method is wrong for the field %s.%s"
156 + " at %sindex %d",
157 entry.klass,
158 entry.name,
159 cached,
160 index);
161 Asserts.assertEQ(info[1], offsetToRefer, msg);
162 }
163 }
164 }