1 /* 2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.hotspot; 24 25 import static org.graalvm.compiler.core.common.util.ModuleAPI.addExports; 26 import static org.graalvm.compiler.core.common.util.ModuleAPI.addOpens; 27 import static org.graalvm.compiler.core.common.util.ModuleAPI.getModule; 28 import static org.graalvm.compiler.core.common.util.Util.JAVA_SPECIFICATION_VERSION; 29 30 import org.graalvm.compiler.serviceprovider.ServiceProvider; 31 32 import jdk.vm.ci.hotspot.HotSpotVMEventListener; 33 import jdk.vm.ci.runtime.JVMCICompiler; 34 import jdk.vm.ci.runtime.JVMCICompilerFactory; 35 import jdk.vm.ci.services.JVMCIServiceLocator; 36 37 @ServiceProvider(JVMCIServiceLocator.class) 38 public final class HotSpotGraalJVMCIServiceLocator extends JVMCIServiceLocator { 39 40 private boolean exportsAdded; 41 42 /** 43 * Dynamically exports and opens various internal JDK packages to the Graal module. This 44 * requires only a single {@code --add-exports=java.base/jdk.internal.module=<Graal module>} on 45 * the VM command line instead of a {@code --add-exports} instance for each JDK internal package 46 * used by Graal. 47 */ 48 private void addExports() { 49 if (JAVA_SPECIFICATION_VERSION >= 9 && !exportsAdded) { 50 Object javaBaseModule = getModule.invoke(String.class); 51 Object graalModule = getModule.invoke(getClass()); 52 addExports.invokeStatic(javaBaseModule, "jdk.internal.misc", graalModule); 53 addExports.invokeStatic(javaBaseModule, "jdk.internal.jimage", graalModule); 54 addExports.invokeStatic(javaBaseModule, "com.sun.crypto.provider", graalModule); 55 addOpens.invokeStatic(javaBaseModule, "jdk.internal.misc", graalModule); 56 addOpens.invokeStatic(javaBaseModule, "jdk.internal.jimage", graalModule); 57 addOpens.invokeStatic(javaBaseModule, "com.sun.crypto.provider", graalModule); 58 exportsAdded = true; 59 } 60 } 61 62 private HotSpotGraalRuntime graalRuntime; 63 64 @Override 65 public <T> T getProvider(Class<T> service) { 66 if (service == JVMCICompilerFactory.class) { 67 addExports(); 68 return service.cast(new HotSpotGraalCompilerFactory(this)); 69 } else if (service == HotSpotVMEventListener.class) { 70 if (graalRuntime != null) { 71 addExports(); 72 return service.cast(new HotSpotGraalVMEventListener(graalRuntime)); 73 } 74 } 75 return null; 76 } 77 78 /** 79 * The signature cannot mention HotSpotGraalCompiler since it indirectly references 80 * JVMCICompiler which is in a non-exported JVMCI package. This causes an IllegalAccessError 81 * while looking for the 82 * <a href="http://hg.openjdk.java.net/jdk9/hs/jdk/rev/89ef4b822745#l32.65">provider</a> factory 83 * method: 84 * 85 * <pre> 86 * java.util.ServiceConfigurationError: jdk.vm.ci.services.JVMCIServiceLocator: Unable to get public provider() method 87 * ... 88 * Caused by: java.lang.IllegalAccessError: superinterface check failed: class org.graalvm.compiler.api.runtime.GraalJVMCICompiler 89 * (in module org.graalvm.compiler.graal_core) cannot access class jdk.vm.ci.runtime.JVMCICompiler (in module jdk.vm.ci) because 90 * module jdk.vm.ci does not export jdk.vm.ci.runtime to module org.graalvm.compiler.graal_core 91 * </pre> 92 */ 93 void onCompilerCreation(JVMCICompiler compiler) { 94 assert this.graalRuntime == null : "only expect a single JVMCICompiler to be created"; 95 this.graalRuntime = (HotSpotGraalRuntime) ((HotSpotGraalCompiler) compiler).getGraalRuntime(); 96 } 97 }