| /* |
| * 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. |
| */ |
| package org.graalvm.compiler.phases.verify; |
| |
| import org.graalvm.compiler.common.PermanentBailoutException; |
| import org.graalvm.compiler.common.RetryableBailoutException; |
| import org.graalvm.compiler.debug.GraalError; |
| 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.code.BailoutException; |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| import jdk.vm.ci.meta.ResolvedJavaType; |
| |
| public class VerifyBailoutUsage extends VerifyPhase<PhaseContext> { |
| |
| private static final String[] AllowedPackagePrefixes; |
| |
| private static String getPackageName(Class<?> c) { |
| String classNameWithPackage = c.getName(); |
| String simpleName = c.getSimpleName(); |
| return classNameWithPackage.substring(0, classNameWithPackage.length() - simpleName.length() - 1); |
| } |
| |
| static { |
| try { |
| AllowedPackagePrefixes = new String[]{getPackageName(PermanentBailoutException.class), "jdk.vm.ci"}; |
| } catch (Throwable t) { |
| throw new GraalError(t); |
| } |
| } |
| |
| private static boolean matchesPrefix(String packageName) { |
| for (String allowedPackagePrefix : AllowedPackagePrefixes) { |
| if (packageName.startsWith(allowedPackagePrefix)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| protected boolean verify(StructuredGraph graph, PhaseContext context) { |
| final ResolvedJavaType bailoutType = context.getMetaAccess().lookupJavaType(BailoutException.class); |
| ResolvedJavaMethod caller = graph.method(); |
| String holderQualified = caller.format("%H"); |
| String holderUnqualified = caller.format("%h"); |
| String packageName = holderQualified.substring(0, holderQualified.length() - holderUnqualified.length() - 1); |
| if (!matchesPrefix(packageName)) { |
| for (MethodCallTargetNode t : graph.getNodes(MethodCallTargetNode.TYPE)) { |
| ResolvedJavaMethod callee = t.targetMethod(); |
| if (callee.getDeclaringClass().equals(bailoutType)) { |
| // we only allow the getter |
| if (!callee.getName().equals("isPermanent")) { |
| throw new VerificationError("Call to %s at callsite %s is prohibited. Consider using %s for permanent bailouts or %s for retryables.", callee.format("%H.%n(%p)"), |
| caller.format("%H.%n(%p)"), PermanentBailoutException.class.getName(), |
| RetryableBailoutException.class.getName()); |
| } |
| } |
| } |
| } |
| return true; |
| } |
| |
| } |