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 (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64")
28 * @library / /testlibrary /test/lib
29 * @library ../common/patches
30 * @modules jdk.vm.ci.hotspot/jdk.vm.ci.hotspot
31 * @build jdk.vm.ci.hotspot/jdk.vm.ci.hotspot.CompilerToVMHelper
32 * jdk.vm.ci.hotspot/jdk.vm.ci.hotspot.PublicMetaspaceWrapperObject
33 * @build compiler.jvmci.compilerToVM.GetResolvedJavaMethodTest
34 * @run main ClassFileInstaller
35 * sun.hotspot.WhiteBox
36 * sun.hotspot.WhiteBox$WhiteBoxPermission
37 * @run main/othervm -Xbootclasspath/a:.
38 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
39 * -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
40 * compiler.jvmci.compilerToVM.GetResolvedJavaMethodTest
41 */
42
43 package compiler.jvmci.compilerToVM;
44
45 import jdk.vm.ci.hotspot.CompilerToVMHelper;
46 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
47 import jdk.vm.ci.hotspot.PublicMetaspaceWrapperObject;
48 import jdk.test.lib.Asserts;
49 import jdk.test.lib.Utils;
50 import sun.hotspot.WhiteBox;
51 import sun.misc.Unsafe;
52
53 import java.lang.reflect.Field;
54
55 public class GetResolvedJavaMethodTest {
56 private static enum TestCase {
57 NULL_BASE {
58 @Override
59 HotSpotResolvedJavaMethod getResolvedJavaMethod() {
60 return CompilerToVMHelper.getResolvedJavaMethod(
61 null, getPtrToMethod());
62 }
63 },
64 JAVA_METHOD_BASE {
65 @Override
66 HotSpotResolvedJavaMethod getResolvedJavaMethod() {
67 HotSpotResolvedJavaMethod methodInstance
68 = CompilerToVMHelper.getResolvedJavaMethodAtSlot(
69 TEST_CLASS, 0);
70 try {
71 METASPACE_METHOD_FIELD.set(methodInstance,
72 getPtrToMethod());
73 } catch (ReflectiveOperationException e) {
74 throw new Error("TEST BUG : " + e, e);
75 }
76 return CompilerToVMHelper.getResolvedJavaMethod(
77 methodInstance, 0L);
78 }
79 },
80 JAVA_METHOD_BASE_IN_TWO {
81 @Override
82 HotSpotResolvedJavaMethod getResolvedJavaMethod() {
83 long ptr = getPtrToMethod();
84 HotSpotResolvedJavaMethod methodInstance
85 = CompilerToVMHelper.getResolvedJavaMethodAtSlot(
86 TEST_CLASS, 0);
87 try {
88 METASPACE_METHOD_FIELD.set(methodInstance, ptr / 2L);
89 } catch (ReflectiveOperationException e) {
90 throw new Error("TESTBUG : " + e, e);
91 }
92 return CompilerToVMHelper.getResolvedJavaMethod(methodInstance,
93 ptr - ptr / 2L);
94 }
95 },
96 JAVA_METHOD_BASE_ZERO {
97 @Override
98 HotSpotResolvedJavaMethod getResolvedJavaMethod() {
99 long ptr = getPtrToMethod();
100 HotSpotResolvedJavaMethod methodInstance
101 = CompilerToVMHelper.getResolvedJavaMethodAtSlot(
102 TEST_CLASS, 0);
103 try {
104 METASPACE_METHOD_FIELD.set(methodInstance, 0L);
105 } catch (ReflectiveOperationException e) {
106 throw new Error("TESTBUG : " + e, e);
107 }
108 return CompilerToVMHelper.getResolvedJavaMethod(methodInstance,
109 ptr);
110 }
111 }
112 ;
113 abstract HotSpotResolvedJavaMethod getResolvedJavaMethod();
114 }
115
116 private static final Unsafe UNSAFE = Utils.getUnsafe();
117 private static final WhiteBox WB = WhiteBox.getWhiteBox();
118 private static final Field METASPACE_METHOD_FIELD;
119 private static final Class<?> TEST_CLASS = GetResolvedJavaMethodTest.class;
120 private static final long PTR;
121 static {
122 HotSpotResolvedJavaMethod method
123 = CompilerToVMHelper.getResolvedJavaMethodAtSlot(TEST_CLASS, 0);
124 try {
125 // jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl.metaspaceMethod
126 METASPACE_METHOD_FIELD = method.getClass()
127 .getDeclaredField("metaspaceMethod");
128 METASPACE_METHOD_FIELD.setAccessible(true);
129 PTR = (long) METASPACE_METHOD_FIELD.get(method);
130 } catch (ReflectiveOperationException e) {
131 throw new Error("TESTBUG : " + e, e);
132 }
133
134 }
135
136 private static long getPtrToMethod() {
137 Field field;
138 try {
139 field = TEST_CLASS.getDeclaredField("PTR");
140 } catch (NoSuchFieldException e) {
141 throw new Error("TEST BUG : " + e, e);
142 }
143 Object base = UNSAFE.staticFieldBase(field);
144 return WB.getObjectAddress(base) + UNSAFE.staticFieldOffset(field);
145 }
146
147 public void test(TestCase testCase) {
148 System.out.println(testCase.name());
149 HotSpotResolvedJavaMethod result = testCase.getResolvedJavaMethod();
150 Asserts.assertNotNull(result, testCase + " : got null");
151 Asserts.assertEQ(TEST_CLASS,
152 CompilerToVMHelper.getMirror(result.getDeclaringClass()),
153 testCase + " : unexpected declaring class");
154 }
155
156 public static void main(String[] args) {
157 GetResolvedJavaMethodTest test = new GetResolvedJavaMethodTest();
158 for (TestCase testCase : TestCase.values()) {
159 test.test(testCase);
160 }
161 testObjectBase();
162 testMetaspaceWrapperBase();
163 }
164
165 private static void testMetaspaceWrapperBase() {
166 try {
167 HotSpotResolvedJavaMethod method
168 = CompilerToVMHelper.getResolvedJavaMethod(
169 new PublicMetaspaceWrapperObject() {
170 @Override
171 public long getMetaspacePointer() {
172 return getPtrToMethod();
173 }
174 }, 0L);
175 throw new AssertionError("Test METASPACE_WRAPPER_BASE."
176 + " Expected IllegalArgumentException has not been caught");
177 } catch (IllegalArgumentException e) {
178 // expected
179 }
180 }
181
182 private static void testObjectBase() {
183 try {
184 HotSpotResolvedJavaMethod method
185 = CompilerToVMHelper.getResolvedJavaMethod(new Object(), 0L);
186 throw new AssertionError("Test OBJECT_BASE."
187 + " Expected IllegalArgumentException has not been caught");
188 } catch (IllegalArgumentException e) {
189 // expected
190 }
191 }
192 }