1 /*
2 * Copyright (c) 2015, 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 * @test
26 * @bug 8136421
27 * @requires vm.jvmci
28 * @library / /test/lib
29 * @library ../common/patches
30 * @modules java.base/jdk.internal.misc
31 * @modules jdk.vm.ci/jdk.vm.ci.hotspot
32 * jdk.vm.ci/jdk.vm.ci.meta
33 *
34 * @ignore 8158860
35 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
36 * jdk.vm.ci/jdk.vm.ci.hotspot.PublicMetaspaceWrapperObject
37 * sun.hotspot.WhiteBox
38 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
39 * sun.hotspot.WhiteBox$WhiteBoxPermission
40 * @run main/othervm -Xbootclasspath/a:.
41 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
42 * -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
43 * -XX:+UseCompressedOops
44 * compiler.jvmci.compilerToVM.GetResolvedJavaTypeTest
45 * @run main/othervm -Xbootclasspath/a:.
46 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
47 * -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
48 * -XX:-UseCompressedOops
49 * compiler.jvmci.compilerToVM.GetResolvedJavaTypeTest
50 */
51
52 package compiler.jvmci.compilerToVM;
53
54 import jdk.internal.misc.Unsafe;
55 import jdk.test.lib.Asserts;
56 import jdk.vm.ci.hotspot.CompilerToVMHelper;
57 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
58 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
59 import jdk.vm.ci.hotspot.PublicMetaspaceWrapperObject;
60 import jdk.vm.ci.meta.ConstantPool;
61 import sun.hotspot.WhiteBox;
62
63 import java.lang.reflect.Field;
64
65 public class GetResolvedJavaTypeTest {
66 private static enum TestCase {
67 NULL_BASE {
68 @Override
69 HotSpotResolvedObjectType getResolvedJavaType() {
70 return CompilerToVMHelper.getResolvedJavaType(
71 null, getPtrToKlass(), COMPRESSED);
72 }
73 },
74 JAVA_METHOD_BASE {
75 @Override
76 HotSpotResolvedObjectType getResolvedJavaType() {
77 HotSpotResolvedJavaMethod methodInstance
78 = CompilerToVMHelper.getResolvedJavaMethodAtSlot(
79 TEST_CLASS, 0);
80 Field field;
81 try {
82 // jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl.metaspaceMethod
83 field = methodInstance.getClass()
84 .getDeclaredField("metaspaceMethod");
85 field.setAccessible(true);
86 field.set(methodInstance, getPtrToKlass());
87 } catch (ReflectiveOperationException e) {
88 throw new Error("TEST BUG : " + e, e);
89 }
90
91 return CompilerToVMHelper.getResolvedJavaType(methodInstance,
92 0L, COMPRESSED);
93 }
94 },
95 CONSTANT_POOL_BASE {
96 @Override
97 HotSpotResolvedObjectType getResolvedJavaType() {
98 ConstantPool cpInst;
99 try {
100 cpInst = CompilerToVMHelper.getConstantPool(null,
101 getPtrToKlass());
102 // jdk.vm.ci.hotspot.HotSpotConstantPool.metaspaceConstantPool
103 Field field = cpInst.getClass()
104 .getDeclaredField("metaspaceConstantPool");
105 field.setAccessible(true);
106 field.set(cpInst, getPtrToKlass());
107 } catch (ReflectiveOperationException e) {
108 throw new Error("TESTBUG : " + e, e);
109 }
110 return CompilerToVMHelper.getResolvedJavaType(cpInst,
111 0L, COMPRESSED);
112 }
113 },
114 CONSTANT_POOL_BASE_IN_TWO {
115 @Override
116 HotSpotResolvedObjectType getResolvedJavaType() {
117 long ptr = getPtrToKlass();
118 ConstantPool cpInst = HotSpotResolvedObjectType
119 .fromObjectClass(TEST_CLASS)
120 .getConstantPool();
121 try {
122 Field field = cpInst.getClass()
123 .getDeclaredField("metaspaceConstantPool");
124 field.setAccessible(true);
125 field.set(cpInst, ptr / 2L);
126 } catch (ReflectiveOperationException e) {
127 throw new Error("TESTBUG : " + e, e);
128 }
129 return CompilerToVMHelper.getResolvedJavaType(cpInst,
130 ptr - ptr / 2L, COMPRESSED);
131 }
132 },
133 CONSTANT_POOL_BASE_ZERO {
134 @Override
135 HotSpotResolvedObjectType getResolvedJavaType() {
136 long ptr = getPtrToKlass();
137 ConstantPool cpInst = HotSpotResolvedObjectType
138 .fromObjectClass(TEST_CLASS)
139 .getConstantPool();
140 try {
141 Field field = cpInst.getClass()
142 .getDeclaredField("metaspaceConstantPool");
143 field.setAccessible(true);
144 field.set(cpInst, 0L);
145 } catch (ReflectiveOperationException e) {
146 throw new Error("TESTBUG : " + e, e);
147 }
148 return CompilerToVMHelper.getResolvedJavaType(cpInst,
149 ptr, COMPRESSED);
150 }
151 },
152 ;
153 abstract HotSpotResolvedObjectType getResolvedJavaType();
154 }
155
156 private static final Unsafe UNSAFE = Unsafe.getUnsafe();
157 private static final WhiteBox WB = WhiteBox.getWhiteBox();
158 private static final Class TEST_CLASS = GetResolvedJavaTypeTest.class;
159 /* a compressed parameter for tested method is set to false because
160 unsafe.getKlassPointer always returns uncompressed pointer */
161 private static final boolean COMPRESSED = false;
162 // = WB.getBooleanVMFlag("UseCompressedClassPointers");
163
164 private static long getPtrToKlass() {
165 Field field;
166 try {
167 field = TEST_CLASS.getDeclaredField("PTR");
168 } catch (NoSuchFieldException e) {
169 throw new Error("TEST BUG : " + e, e);
170 }
171 Object base = UNSAFE.staticFieldBase(field);
172 return WB.getObjectAddress(base) + UNSAFE.staticFieldOffset(field);
173 }
174
175 public void test(TestCase testCase) {
176 System.out.println(testCase.name());
177 HotSpotResolvedObjectType type = testCase.getResolvedJavaType();
178 Asserts.assertEQ(TEST_CLASS,
179 CompilerToVMHelper.getMirror(type),
180 testCase + " : unexpected class returned");
181 }
182
183 public static void main(String[] args) {
184 GetResolvedJavaTypeTest test = new GetResolvedJavaTypeTest();
185 for (TestCase testCase : TestCase.values()) {
186 test.test(testCase);
187 }
188 testObjectBase();
189 testMetaspaceWrapperBase();
190 }
191
192 private static void testMetaspaceWrapperBase() {
193 try {
194 HotSpotResolvedObjectType type
195 = CompilerToVMHelper.getResolvedJavaType(
196 new PublicMetaspaceWrapperObject() {
197 @Override
198 public long getMetaspacePointer() {
199 return getPtrToKlass();
200 }
201 }, 0L, COMPRESSED);
202 throw new AssertionError("Test METASPACE_WRAPPER_BASE."
203 + " Expected IllegalArgumentException has not been caught");
204 } catch (IllegalArgumentException iae) {
205 // expected
206 }
207 }
208
209 private static void testObjectBase() {
210 try {
211 HotSpotResolvedObjectType type
212 = CompilerToVMHelper.getResolvedJavaType(new Object(), 0L,
213 COMPRESSED);
214 throw new AssertionError("Test OBJECT_BASE."
215 + " Expected IllegalArgumentException has not been caught");
216 } catch (IllegalArgumentException iae) {
217 // expected
218 }
219 }
220 }