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 (vm.arch == "x64" | vm.arch == "sparcv9" | vm.arch == "arm64")
29 * @library /testlibrary /test/lib /
30 * @library ../common/patches
31 * @modules java.base/jdk.internal.misc
32 * java.base/jdk.internal.reflect
33 * java.base/jdk.internal.org.objectweb.asm
34 * java.base/jdk.internal.org.objectweb.asm.tree
35 * jdk.vm.ci/jdk.vm.ci.hotspot
36 * jdk.vm.ci/jdk.vm.ci.meta
37 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
38 * @build sun.hotspot.WhiteBox
39 * compiler.jvmci.compilerToVM.ResolveFieldInPoolTest
40 * @run main ClassFileInstaller sun.hotspot.WhiteBox
41 * sun.hotspot.WhiteBox$WhiteBoxPermission
42 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
43 * -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
44 * compiler.jvmci.compilerToVM.ResolveFieldInPoolTest
45 */
46
47 package compiler.jvmci.compilerToVM;
48
49 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
50 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
51 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.*;
52 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
53 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
54 import java.lang.reflect.Field;
55 import java.util.HashMap;
56 import java.util.Map;
57 import jdk.internal.org.objectweb.asm.Opcodes;
58 import jdk.vm.ci.hotspot.CompilerToVMHelper;
59 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
60 import jdk.vm.ci.meta.ConstantPool;
61 import jdk.test.lib.Asserts;
62 import jdk.test.lib.Utils;
63 import jdk.internal.misc.Unsafe;
64
65 /**
66 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolveFieldInPool} method
67 */
68 public class ResolveFieldInPoolTest {
69
70 private static final Unsafe UNSAFE = Utils.getUnsafe();
71
72 public static void main(String[] args) throws Exception {
73 Map<ConstantTypes, Validator> typeTests = new HashMap<>();
74 typeTests.put(CONSTANT_FIELDREF, ResolveFieldInPoolTest::validate);
75 ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
76 testCase.test();
77 // The next "Class.forName" and repeating "testCase.test()"
78 // are here for the following reason.
79 // The first test run is without dummy class initialization,
80 // which means no constant pool cache exists.
81 // The second run is with initialized class (with constant pool cache available).
82 // Some CompilerToVM methods require different input
83 // depending on whether CP cache exists or not.
84 for (DummyClasses dummy : DummyClasses.values()) {
85 Class.forName(dummy.klass.getName());
86 }
87 testCase.test();
88 }
89
90 private static void validate(ConstantPool constantPoolCTVM,
91 ConstantTypes cpType,
92 DummyClasses dummyClass,
93 int cpi) {
94 TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);
95 if (entry == null) {
96 return;
97 }
98 int index = cpi;
99 String cached = "";
100 int cpci = dummyClass.getCPCacheIndex(cpi);
101 if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {
102 index = cpci;
103 cached = "cached ";
104 }
105 for (int j = 0; j < entry.opcodes.length; j++) {
106 long[] info = new long[2];
107 HotSpotResolvedObjectType fieldToVerify
108 = CompilerToVMHelper.resolveFieldInPool(constantPoolCTVM,
109 index,
110 entry.opcodes[j],
111 info);
112 String msg = String.format("Object returned by resolveFieldInPool method"
113 + " for %sindex %d should not be null",
114 cached,
115 index);
116 Asserts.assertNotNull(fieldToVerify, msg);
117 String classNameToRefer = entry.klass;
118 String fieldToVerifyKlassToString = fieldToVerify.klass().toValueString();
119 if (!fieldToVerifyKlassToString.contains(classNameToRefer)) {
120 msg = String.format("String representation \"%s\" of the object"
121 + " returned by resolveFieldInPool method"
122 + " for index %d does not contain a field's class name,"
123 + " should contain %s",
124 fieldToVerifyKlassToString,
125 index,
126 classNameToRefer);
127 throw new AssertionError(msg);
128 }
129 msg = String.format("Access flags returned by resolveFieldInPool"
130 + " method are wrong for the field %s.%s"
131 + " at %sindex %d",
132 entry.klass,
133 entry.name,
134 cached,
135 index);
136 Asserts.assertEQ(info[0], entry.accFlags, msg);
137 if (cpci == -1) {
138 return;
139 }
140 Class classOfTheField = null;
141 Field fieldToRefer = null;
142 try {
143 classOfTheField = Class.forName(classNameToRefer.replaceAll("/", "\\."));
144 fieldToRefer = classOfTheField.getDeclaredField(entry.name);
145 fieldToRefer.setAccessible(true);
146 } catch (Exception ex) {
147 throw new Error("Unexpected exception", ex);
148 }
149 long offsetToRefer;
150 if ((entry.accFlags & Opcodes.ACC_STATIC) != 0) {
151 offsetToRefer = UNSAFE.staticFieldOffset(fieldToRefer);
152 } else {
153 offsetToRefer = UNSAFE.objectFieldOffset(fieldToRefer);
154 }
155 msg = String.format("Field offset returned by resolveFieldInPool"
156 + " method is wrong for the field %s.%s"
157 + " at %sindex %d",
158 entry.klass,
159 entry.name,
160 cached,
161 index);
162 Asserts.assertEQ(info[1], offsetToRefer, msg);
163 }
164 }
165 }