| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8138708 |
| * @requires vm.jvmci |
| * @library /test/lib / |
| * @library ../common/patches |
| * @modules java.base/jdk.internal.misc |
| * java.base/jdk.internal.reflect |
| * java.base/jdk.internal.org.objectweb.asm |
| * java.base/jdk.internal.org.objectweb.asm.tree |
| * jdk.internal.vm.ci/jdk.vm.ci.hotspot |
| * jdk.internal.vm.ci/jdk.vm.ci.meta |
| * jdk.internal.vm.ci/jdk.vm.ci.runtime |
| * |
| * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox |
| * @run driver ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI |
| * -Djvmci.Compiler=null |
| * compiler.jvmci.compilerToVM.ResolveFieldInPoolTest |
| */ |
| |
| package compiler.jvmci.compilerToVM; |
| |
| import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes; |
| import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry; |
| import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator; |
| import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses; |
| import jdk.internal.misc.Unsafe; |
| import jdk.internal.org.objectweb.asm.Opcodes; |
| import jdk.test.lib.Asserts; |
| import jdk.vm.ci.hotspot.CompilerToVMHelper; |
| import jdk.vm.ci.hotspot.HotSpotResolvedObjectType; |
| import jdk.vm.ci.meta.ConstantPool; |
| |
| import java.lang.reflect.Field; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_FIELDREF; |
| |
| /** |
| * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolveFieldInPool} method |
| */ |
| public class ResolveFieldInPoolTest { |
| |
| private static final Unsafe UNSAFE = Unsafe.getUnsafe(); |
| |
| public static void main(String[] args) throws Exception { |
| Map<ConstantTypes, Validator> typeTests = new HashMap<>(); |
| typeTests.put(CONSTANT_FIELDREF, ResolveFieldInPoolTest::validate); |
| ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests); |
| testCase.test(); |
| // The next "Class.forName" and repeating "testCase.test()" |
| // are here for the following reason. |
| // The first test run is without dummy class initialization, |
| // which means no constant pool cache exists. |
| // The second run is with initialized class (with constant pool cache available). |
| // Some CompilerToVM methods require different input |
| // depending on whether CP cache exists or not. |
| for (DummyClasses dummy : DummyClasses.values()) { |
| Class.forName(dummy.klass.getName()); |
| } |
| testCase.test(); |
| } |
| |
| private static void validate(ConstantPool constantPoolCTVM, |
| ConstantTypes cpType, |
| DummyClasses dummyClass, |
| int cpi) { |
| TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi); |
| if (entry == null) { |
| return; |
| } |
| int index = cpi; |
| String cached = ""; |
| int cpci = dummyClass.getCPCacheIndex(cpi); |
| if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) { |
| index = cpci; |
| cached = "cached "; |
| } |
| for (int j = 0; j < entry.opcodes.length; j++) { |
| int[] info = new int[3]; |
| HotSpotResolvedObjectType fieldToVerify |
| = CompilerToVMHelper.resolveFieldInPool(constantPoolCTVM, |
| index, |
| entry.methods == null ? null : entry.methods[j], |
| entry.opcodes[j], |
| info); |
| String msg = String.format("Object returned by resolveFieldInPool method" |
| + " for %sindex %d should not be null", |
| cached, |
| index); |
| Asserts.assertNotNull(fieldToVerify, msg); |
| String classNameToRefer = entry.klass; |
| String fieldToVerifyKlassToString = fieldToVerify.klass().toValueString(); |
| if (!fieldToVerifyKlassToString.contains(classNameToRefer)) { |
| msg = String.format("String representation \"%s\" of the object" |
| + " returned by resolveFieldInPool method" |
| + " for index %d does not contain a field's class name," |
| + " should contain %s", |
| fieldToVerifyKlassToString, |
| index, |
| classNameToRefer); |
| throw new AssertionError(msg); |
| } |
| msg = String.format("Access flags returned by resolveFieldInPool" |
| + " method are wrong for the field %s.%s" |
| + " at %sindex %d", |
| entry.klass, |
| entry.name, |
| cached, |
| index); |
| Asserts.assertEQ(info[0], entry.accFlags, msg); |
| if (cpci == -1) { |
| return; |
| } |
| Class classOfTheField = null; |
| Field fieldToRefer = null; |
| try { |
| classOfTheField = Class.forName(classNameToRefer.replaceAll("/", "\\.")); |
| fieldToRefer = classOfTheField.getDeclaredField(entry.name); |
| fieldToRefer.setAccessible(true); |
| } catch (Exception ex) { |
| throw new Error("Unexpected exception", ex); |
| } |
| int offsetToRefer; |
| if ((entry.accFlags & Opcodes.ACC_STATIC) != 0) { |
| offsetToRefer = (int) UNSAFE.staticFieldOffset(fieldToRefer); |
| } else { |
| offsetToRefer = (int) UNSAFE.objectFieldOffset(fieldToRefer); |
| } |
| msg = String.format("Field offset returned by resolveFieldInPool" |
| + " method is wrong for the field %s.%s" |
| + " at %sindex %d", |
| entry.klass, |
| entry.name, |
| cached, |
| index); |
| Asserts.assertEQ(info[1], offsetToRefer, msg); |
| } |
| } |
| } |