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.arch == "x64" | vm.arch == "sparcv9" | vm.arch == "arm64")
28 * @library / /testlibrary /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 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
34 * jdk.vm.ci/jdk.vm.ci.hotspot.PublicMetaspaceWrapperObject
35 * @build compiler.jvmci.compilerToVM.GetResolvedJavaTypeTest
36 * @build sun.hotspot.WhiteBox
37 * @run main ClassFileInstaller
38 * 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 java.lang.reflect.Field;
55 import jdk.vm.ci.meta.ConstantPool;
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.test.lib.Asserts;
61 import jdk.test.lib.Utils;
62 import sun.hotspot.WhiteBox;
63 import jdk.internal.misc.Unsafe;
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 OBJECT_TYPE_BASE {
153 @Override
154 HotSpotResolvedObjectType getResolvedJavaType() {
155 HotSpotResolvedObjectType type
156 = HotSpotResolvedObjectType.fromObjectClass(
157 OBJECT_TYPE_BASE.getClass());
158 long ptrToClass = UNSAFE.getKlassPointer(OBJECT_TYPE_BASE);
159 return CompilerToVMHelper.getResolvedJavaType(type,
160 getPtrToKlass() - ptrToClass, COMPRESSED);
161 }
162 },
163 ;
164 abstract HotSpotResolvedObjectType getResolvedJavaType();
165 }
166
167 private static final Unsafe UNSAFE = Utils.getUnsafe();
168 private static final WhiteBox WB = WhiteBox.getWhiteBox();
169 private static final long PTR = UNSAFE.getKlassPointer(
170 new GetResolvedJavaTypeTest());
171 private static final Class TEST_CLASS = GetResolvedJavaTypeTest.class;
172 /* a compressed parameter for tested method is set to false because
173 unsafe.getKlassPointer always returns uncompressed pointer */
174 private static final boolean COMPRESSED = false;
175 // = WB.getBooleanVMFlag("UseCompressedClassPointers");
176
177 private static long getPtrToKlass() {
178 Field field;
179 try {
180 field = TEST_CLASS.getDeclaredField("PTR");
181 } catch (NoSuchFieldException e) {
182 throw new Error("TEST BUG : " + e, e);
183 }
184 Object base = UNSAFE.staticFieldBase(field);
185 return WB.getObjectAddress(base) + UNSAFE.staticFieldOffset(field);
186 }
187
188 public void test(TestCase testCase) {
189 System.out.println(testCase.name());
190 HotSpotResolvedObjectType type = testCase.getResolvedJavaType();
191 Asserts.assertEQ(TEST_CLASS,
192 CompilerToVMHelper.getMirror(type),
193 testCase + " : unexpected class returned");
194 }
195
196 public static void main(String[] args) {
197 GetResolvedJavaTypeTest test = new GetResolvedJavaTypeTest();
198 for (TestCase testCase : TestCase.values()) {
199 test.test(testCase);
200 }
201 testObjectBase();
202 testMetaspaceWrapperBase();
203 }
204
205 private static void testMetaspaceWrapperBase() {
206 try {
207 HotSpotResolvedObjectType type
208 = CompilerToVMHelper.getResolvedJavaType(
209 new PublicMetaspaceWrapperObject() {
210 @Override
211 public long getMetaspacePointer() {
212 return getPtrToKlass();
213 }
214 }, 0L, COMPRESSED);
215 throw new AssertionError("Test METASPACE_WRAPPER_BASE."
216 + " Expected IllegalArgumentException has not been caught");
217 } catch (IllegalArgumentException iae) {
218 // expected
219 }
220 }
221
222 private static void testObjectBase() {
223 try {
224 HotSpotResolvedObjectType type
225 = CompilerToVMHelper.getResolvedJavaType(new Object(), 0L,
226 COMPRESSED);
227 throw new AssertionError("Test OBJECT_BASE."
228 + " Expected IllegalArgumentException has not been caught");
229 } catch (IllegalArgumentException iae) {
230 // expected
231 }
232 }
233 }