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.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64") 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 * jdk.vm.ci/jdk.vm.ci.runtime 38 * 39 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper 40 * @build sun.hotspot.WhiteBox 41 * compiler.jvmci.compilerToVM.ResolveFieldInPoolTest 42 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 43 * sun.hotspot.WhiteBox$WhiteBoxPermission 44 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 45 * -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 46 * compiler.jvmci.compilerToVM.ResolveFieldInPoolTest 47 */ 48 49 package compiler.jvmci.compilerToVM; 50 51 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes; 52 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry; 53 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator; 54 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses; 55 import jdk.internal.misc.Unsafe; 56 import jdk.internal.org.objectweb.asm.Opcodes; 57 import jdk.test.lib.Asserts; 58 import jdk.test.lib.Utils; 59 import jdk.vm.ci.hotspot.CompilerToVMHelper; 60 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType; 61 import jdk.vm.ci.meta.ConstantPool; 62 63 import java.lang.reflect.Field; 64 import java.util.HashMap; 65 import java.util.Map; 66 67 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_FIELDREF; 68 69 /** 70 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolveFieldInPool} method 71 */ 72 public class ResolveFieldInPoolTest { 73 74 private static final Unsafe UNSAFE = Utils.getUnsafe(); 75 76 public static void main(String[] args) throws Exception { 77 Map<ConstantTypes, Validator> typeTests = new HashMap<>(); 78 typeTests.put(CONSTANT_FIELDREF, ResolveFieldInPoolTest::validate); 79 ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests); 80 testCase.test(); 81 // The next "Class.forName" and repeating "testCase.test()" 82 // are here for the following reason. 83 // The first test run is without dummy class initialization, 84 // which means no constant pool cache exists. 85 // The second run is with initialized class (with constant pool cache available). 86 // Some CompilerToVM methods require different input 87 // depending on whether CP cache exists or not. 88 for (DummyClasses dummy : DummyClasses.values()) { 89 Class.forName(dummy.klass.getName()); 90 } 91 testCase.test(); 92 } 93 94 private static void validate(ConstantPool constantPoolCTVM, 95 ConstantTypes cpType, 96 DummyClasses dummyClass, 97 int cpi) { 98 TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi); 99 if (entry == null) { 100 return; 101 } 102 int index = cpi; 103 String cached = ""; 104 int cpci = dummyClass.getCPCacheIndex(cpi); 105 if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) { 106 index = cpci; 107 cached = "cached "; 108 } 109 for (int j = 0; j < entry.opcodes.length; j++) { 110 long[] info = new long[2]; 111 HotSpotResolvedObjectType fieldToVerify 112 = CompilerToVMHelper.resolveFieldInPool(constantPoolCTVM, 113 index, 114 entry.methods == null ? null : entry.methods[j], 115 entry.opcodes[j], 116 info); 117 String msg = String.format("Object returned by resolveFieldInPool method" 118 + " for %sindex %d should not be null", 119 cached, 120 index); 121 Asserts.assertNotNull(fieldToVerify, msg); 122 String classNameToRefer = entry.klass; 123 String fieldToVerifyKlassToString = fieldToVerify.klass().toValueString(); 124 if (!fieldToVerifyKlassToString.contains(classNameToRefer)) { 125 msg = String.format("String representation \"%s\" of the object" 126 + " returned by resolveFieldInPool method" 127 + " for index %d does not contain a field's class name," 128 + " should contain %s", 129 fieldToVerifyKlassToString, 130 index, 131 classNameToRefer); 132 throw new AssertionError(msg); 133 } 134 msg = String.format("Access flags returned by resolveFieldInPool" 135 + " method are wrong for the field %s.%s" 136 + " at %sindex %d", 137 entry.klass, 138 entry.name, 139 cached, 140 index); 141 Asserts.assertEQ(info[0], entry.accFlags, msg); 142 if (cpci == -1) { 143 return; 144 } 145 Class classOfTheField = null; 146 Field fieldToRefer = null; 147 try { 148 classOfTheField = Class.forName(classNameToRefer.replaceAll("/", "\\.")); 149 fieldToRefer = classOfTheField.getDeclaredField(entry.name); 150 fieldToRefer.setAccessible(true); 151 } catch (Exception ex) { 152 throw new Error("Unexpected exception", ex); 153 } 154 long offsetToRefer; 155 if ((entry.accFlags & Opcodes.ACC_STATIC) != 0) { 156 offsetToRefer = UNSAFE.staticFieldOffset(fieldToRefer); 157 } else { 158 offsetToRefer = UNSAFE.objectFieldOffset(fieldToRefer); 159 } 160 msg = String.format("Field offset returned by resolveFieldInPool" 161 + " method is wrong for the field %s.%s" 162 + " at %sindex %d", 163 entry.klass, 164 entry.name, 165 cached, 166 index); 167 Asserts.assertEQ(info[1], offsetToRefer, msg); 168 } 169 } 170 }