| /* |
| * 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. |
| */ |
| |
| package compiler.jvmci.common; |
| |
| import jdk.internal.org.objectweb.asm.ClassReader; |
| import jdk.internal.org.objectweb.asm.ClassVisitor; |
| import jdk.internal.org.objectweb.asm.ClassWriter; |
| import jdk.internal.org.objectweb.asm.Label; |
| import jdk.internal.org.objectweb.asm.MethodVisitor; |
| import jdk.internal.org.objectweb.asm.Opcodes; |
| import jdk.internal.org.objectweb.asm.tree.ClassNode; |
| import jdk.test.lib.Utils; |
| import jdk.vm.ci.code.InstalledCode; |
| import jdk.vm.ci.hotspot.CompilerToVMHelper; |
| import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; |
| |
| import java.io.IOException; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Executable; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| import java.lang.reflect.Module; |
| import java.lang.reflect.Parameter; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.TreeMap; |
| |
| public class CTVMUtilities { |
| /* |
| * A method to return HotSpotResolvedJavaMethod object using class object |
| * and method as input |
| */ |
| public static HotSpotResolvedJavaMethod getResolvedMethod(Class<?> cls, |
| Executable method) { |
| if (!(method instanceof Method || method instanceof Constructor)) { |
| throw new Error("wrong executable type " + method.getClass()); |
| } |
| return CompilerToVMHelper.asResolvedJavaMethod(method); |
| } |
| |
| public static HotSpotResolvedJavaMethod getResolvedMethod( |
| Executable method) { |
| return getResolvedMethod(method.getDeclaringClass(), method); |
| } |
| |
| public static InstalledCode getInstalledCode(String name, long address, |
| long entryPoint) { |
| return new InstalledCodeStub(name, address, entryPoint); |
| } |
| private static class InstalledCodeStub extends InstalledCode { |
| private InstalledCodeStub(String name, long address, long entryPoint) { |
| super(name); |
| this.address = address; |
| this.entryPoint = entryPoint; |
| } |
| } |
| public static Map<Integer, Integer> getBciToLineNumber(Executable method) { |
| Map<Integer, Integer> lineNumbers = new TreeMap<>(); |
| Class<?> aClass = method.getDeclaringClass(); |
| ClassReader cr; |
| try { |
| Module aModule = aClass.getModule(); |
| String name = aClass.getName(); |
| cr = new ClassReader(aModule.getResourceAsStream( |
| name.replace('.', '/') + ".class")); |
| } catch (IOException e) { |
| throw new Error("TEST BUG: can read " + aClass.getName() + " : " + e, e); |
| } |
| ClassNode cn = new ClassNode(); |
| cr.accept(cn, ClassReader.EXPAND_FRAMES); |
| |
| Map<Label, Integer> labels = new HashMap<>(); |
| ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES); |
| ClassVisitor cv = new ClassVisitorForLabels(cw, labels, method); |
| cr.accept(cv, ClassReader.EXPAND_FRAMES); |
| labels.forEach((k, v) -> lineNumbers.put(k.getOffset(), v)); |
| boolean isEmptyMethod = Modifier.isAbstract(method.getModifiers()) |
| || Modifier.isNative(method.getModifiers()); |
| if (lineNumbers.isEmpty() && !isEmptyMethod) { |
| throw new Error(method + " doesn't contains the line numbers table " |
| +"(the method marked neither abstract nor native)"); |
| } |
| return lineNumbers; |
| } |
| |
| private static class ClassVisitorForLabels extends ClassVisitor { |
| private final Map<Label, Integer> lineNumbers; |
| private final String targetName; |
| private final String targetDesc; |
| |
| public ClassVisitorForLabels(ClassWriter cw, Map<Label, Integer> lines, |
| Executable target) { |
| super(Opcodes.ASM5, cw); |
| this.lineNumbers = lines; |
| |
| StringBuilder builder = new StringBuilder("("); |
| for (Parameter parameter : target.getParameters()) { |
| builder.append(Utils.toJVMTypeSignature(parameter.getType())); |
| } |
| builder.append(")"); |
| if (target instanceof Constructor) { |
| targetName = "<init>"; |
| builder.append("V"); |
| } else { |
| targetName = target.getName(); |
| builder.append(Utils.toJVMTypeSignature( |
| ((Method) target).getReturnType())); |
| } |
| targetDesc = builder.toString(); |
| } |
| |
| @Override |
| public final MethodVisitor visitMethod(int access, String name, |
| String desc, String signature, |
| String[] exceptions) { |
| MethodVisitor mv = cv.visitMethod(access, name, desc, signature, |
| exceptions); |
| if (targetDesc.equals(desc) && targetName.equals(name)) { |
| return new MethodVisitor(Opcodes.ASM5, mv) { |
| @Override |
| public void visitLineNumber(int i, Label label) { |
| super.visitLineNumber(i, label); |
| lineNumbers.put(label, i); |
| } |
| }; |
| } |
| return mv; |
| } |
| } |
| } |