| /* |
| * Copyright (c) 2013, 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 org.graalvm.compiler.phases.verify; |
| |
| import static org.graalvm.compiler.serviceprovider.GraalServices.Java8OrEarlier; |
| |
| import java.lang.annotation.Annotation; |
| |
| import org.graalvm.compiler.nodes.Invoke; |
| import org.graalvm.compiler.nodes.StructuredGraph; |
| import org.graalvm.compiler.nodes.java.MethodCallTargetNode; |
| import org.graalvm.compiler.phases.VerifyPhase; |
| import org.graalvm.compiler.phases.tiers.PhaseContext; |
| |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| import jdk.vm.ci.meta.ResolvedJavaType; |
| |
| /** |
| * Verifies a method is annotated with CallerSensitive iff it calls Reflection#getCallerClass(). |
| */ |
| public class VerifyCallerSensitiveMethods extends VerifyPhase<PhaseContext> { |
| |
| Class<? extends Annotation> callerSensitiveClass; |
| Class<?> reflectionClass; |
| |
| @Override |
| public boolean checkContract() { |
| return false; |
| } |
| |
| @SuppressWarnings("unchecked") |
| public VerifyCallerSensitiveMethods() { |
| try { |
| ClassLoader classLoader = ClassLoader.getSystemClassLoader(); |
| if (Java8OrEarlier) { |
| reflectionClass = classLoader.loadClass("sun.reflect.Reflection"); |
| callerSensitiveClass = (Class<? extends Annotation>) classLoader.loadClass("sun.reflect.ConstantPool"); |
| } else { |
| reflectionClass = classLoader.loadClass("jdk.internal.reflect.Reflection"); |
| callerSensitiveClass = (Class<? extends Annotation>) classLoader.loadClass("jdk.internal.reflect.ConstantPool"); |
| } |
| } catch (ClassNotFoundException e) { |
| throw new AssertionError(e); |
| } |
| } |
| |
| @Override |
| protected boolean verify(StructuredGraph graph, PhaseContext context) { |
| Invoke invoke = callsReflectionGetCallerClass(graph, context); |
| Annotation annotation = graph.method().getAnnotation(callerSensitiveClass); |
| if (invoke != null) { |
| if (annotation == null) { |
| StackTraceElement e = graph.method().asStackTraceElement(invoke.bci()); |
| throw new VerificationError(String.format("%s: method that calls Reflection.getCallerClass() must be annotated with @CallerSensitive", e)); |
| } |
| |
| } else if (annotation != null) { |
| throw new VerificationError(String.format("%s: method annotated with @CallerSensitive does not call Reflection.getCallerClass()", graph.method().format("%H.%n(%p)"))); |
| } |
| return true; |
| } |
| |
| private Invoke callsReflectionGetCallerClass(StructuredGraph graph, PhaseContext context) { |
| ResolvedJavaType reflectionType = context.getMetaAccess().lookupJavaType(reflectionClass); |
| for (MethodCallTargetNode t : graph.getNodes(MethodCallTargetNode.TYPE)) { |
| ResolvedJavaMethod callee = t.targetMethod(); |
| if (callee.getDeclaringClass().equals(reflectionType)) { |
| if (callee.getName().equals("getCallerClass")) { |
| return t.invoke(); |
| } |
| } |
| } |
| return null; |
| } |
| } |