| /* |
| * Copyright (c) 2015, 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 8136421 |
| * @requires (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64") |
| * @library / /test/lib |
| * @library ../common/patches |
| * @modules java.base/jdk.internal.misc |
| * @modules java.base/jdk.internal.org.objectweb.asm |
| * java.base/jdk.internal.org.objectweb.asm.tree |
| * jdk.vm.ci/jdk.vm.ci.hotspot |
| * jdk.vm.ci/jdk.vm.ci.code |
| * jdk.vm.ci/jdk.vm.ci.meta |
| * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper |
| * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI |
| * compiler.jvmci.compilerToVM.GetSymbolTest |
| */ |
| |
| package compiler.jvmci.compilerToVM; |
| |
| import compiler.jvmci.common.CTVMUtilities; |
| import compiler.jvmci.common.testcases.SingleImplementer; |
| import jdk.test.lib.Utils; |
| import jdk.vm.ci.hotspot.CompilerToVMHelper; |
| import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; |
| import jdk.vm.ci.meta.ConstantPool; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Member; |
| import java.lang.reflect.Method; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.function.Function; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| public class GetSymbolTest { |
| private static final int CONSTANT_POOL_UTF8_TAG = 1; // see jvms, section 4.4 |
| |
| private static final Function<Member[], List<String>> NAMES = members -> |
| Stream.of(members) |
| .map(Member::getName) |
| .collect(Collectors.toList()); |
| |
| public static void main(String[] args) { |
| new GetSymbolTest().test(SingleImplementer.class); |
| } |
| |
| private void test(Class<?> aClass) { |
| Utils.ensureClassIsLoaded(aClass); |
| Method method; |
| try { |
| method = aClass.getDeclaredMethod("nonInterfaceMethod"); |
| } catch (NoSuchMethodException e) { |
| throw new Error("TEST BUG: can't find test method", e); |
| } |
| HotSpotResolvedJavaMethod resolvedMethod |
| = CTVMUtilities.getResolvedMethod(aClass, method); |
| List<String> symbols; |
| try { |
| symbols = getSymbols(resolvedMethod); |
| } catch (ReflectiveOperationException e) { |
| throw new Error("TEST BUG: can't access private members", e); |
| } |
| List<String> classSymbols = new ArrayList<>(); |
| classSymbols.addAll(NAMES.apply(aClass.getDeclaredFields())); |
| classSymbols.addAll(NAMES.apply(aClass.getDeclaredMethods())); |
| // Check that all members of test class have symbols from constant pool |
| for (String s : classSymbols) { |
| if (!symbols.contains(s)) { |
| // failed. print all symbols found by getSymbol |
| System.out.println("getSymbol data:"); |
| for (String ctvmValue : symbols) { |
| System.out.println(ctvmValue); |
| } |
| throw new AssertionError("Unable to find symbol " + s |
| + " using CompilerToVM.getSymbol"); |
| } |
| } |
| } |
| |
| private List<String> getSymbols(HotSpotResolvedJavaMethod |
| metaspaceMethod) throws ReflectiveOperationException { |
| List<String> symbols = new ArrayList<>(); |
| ConstantPool pool = metaspaceMethod.getConstantPool(); |
| long length = pool.length(); |
| // jvms-4.1: The constant_pool table is indexed from 1 ... |
| for (int i = 1; i < length; i++) { |
| if (getTag(pool, i) == CONSTANT_POOL_UTF8_TAG) { |
| long entryPointer; |
| Method getEntryAt = pool.getClass() |
| .getDeclaredMethod("getEntryAt", int.class); |
| getEntryAt.setAccessible(true); |
| entryPointer = (Long) getEntryAt.invoke(pool, i); |
| String symbol = CompilerToVMHelper.getSymbol(entryPointer); |
| symbols.add(symbol); |
| } |
| } |
| return symbols; |
| } |
| |
| private int getTag(ConstantPool pool, int index) |
| throws ReflectiveOperationException { |
| Object jvmConstant; |
| Method getTag = pool.getClass().getDeclaredMethod("getTagAt", |
| int.class); |
| getTag.setAccessible(true); |
| jvmConstant = getTag.invoke(pool, index); |
| Field tagCode = jvmConstant.getClass().getDeclaredField("tag"); |
| tagCode.setAccessible(true); |
| return tagCode.getInt(jvmConstant); |
| } |
| } |