--- /dev/null 2015-10-08 07:26:45.000000000 -1000 +++ new/test/compiler/jvmci/compilerToVM/GetSymbolTest.java 2015-10-08 07:26:45.000000000 -1000 @@ -0,0 +1,135 @@ +/* + * Copyright (c) 2015, 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 (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64" + * @library / /testlibrary /../../test/lib + * @compile ../common/CompilerToVMHelper.java + * @build compiler.jvmci.compilerToVM.GetSymbolTest + * @run main ClassFileInstaller jdk.vm.ci.hotspot.CompilerToVMHelper + * compiler.jvmci.common.testcases.SingleImplementer + * compiler.jvmci.common.testcases.SingleImplementerInterface + * compiler.jvmci.compilerToVM.GetSymbolTest + * compiler.jvmci.common.CTVMUtilities + * jdk.test.lib.Utils + * jdk.test.lib.Asserts + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI + * -Xbootclasspath/a:. compiler.jvmci.compilerToVM.GetSymbolTest + */ + +package compiler.jvmci.compilerToVM; + +import jdk.vm.ci.hotspot.CompilerToVMHelper; +import compiler.jvmci.common.CTVMUtilities; +import compiler.jvmci.common.testcases.SingleImplementer; +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; +import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl; +import jdk.vm.ci.meta.ConstantPool; +import jdk.test.lib.Utils; + +public class GetSymbolTest { + private static final int CONSTANT_POOL_UTF8_TAG = 1; // see jvms, section 4.4 + + private static final Function> 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); + } + HotSpotResolvedJavaMethodImpl resolvedMethod + = CTVMUtilities.getResolvedMethod(aClass, method); + List symbols; + try { + symbols = getSymbols(resolvedMethod); + } catch (ReflectiveOperationException e) { + throw new Error("TEST BUG: can't access private members", e); + } + List 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 getSymbols(HotSpotResolvedJavaMethodImpl + metaspaceMethod) throws ReflectiveOperationException { + List 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); + } +}