1 /* 2 * Copyright (c) 2015, 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 24 package compiler.jvmci.common; 25 26 import jdk.vm.ci.code.CompilationRequest; 27 import jdk.vm.ci.code.CompilationRequestResult; 28 import jdk.vm.ci.hotspot.HotSpotVMEventListener; 29 import jdk.vm.ci.services.JVMCIServiceLocator; 30 import jdk.vm.ci.runtime.JVMCICompiler; 31 import jdk.vm.ci.runtime.JVMCIRuntime; 32 import jdk.vm.ci.runtime.JVMCICompilerFactory; 33 34 /* 35 * A stub classes to be able to use jvmci 36 */ 37 public class JVMCIHelpers extends JVMCIServiceLocator { 38 39 @Override getProvider(Class<S> service)40 public <S> S getProvider(Class<S> service) { 41 if (service == JVMCICompilerFactory.class) { 42 return service.cast(new EmptyCompilerFactory()); 43 } 44 if (service == HotSpotVMEventListener.class) { 45 return service.cast(new EmptyVMEventListener()); 46 } 47 return null; 48 } 49 50 public static class EmptyVMEventListener implements HotSpotVMEventListener { 51 // just empty, using default interface methods 52 } 53 54 public static class EmptyCompilationRequestResult implements CompilationRequestResult { 55 @Override getFailure()56 public Object getFailure() { 57 return "no compiler configured"; 58 } 59 } 60 public static class EmptyHotspotCompiler implements JVMCICompiler { 61 62 @Override compileMethod(CompilationRequest request)63 public CompilationRequestResult compileMethod(CompilationRequest request) { 64 // do nothing 65 return new EmptyCompilationRequestResult(); 66 } 67 } 68 69 public static class EmptyCompilerFactory implements JVMCICompilerFactory { 70 71 @Override getCompilerName()72 public String getCompilerName() { 73 return "EmptyCompiler"; 74 } 75 76 @Override createCompiler(JVMCIRuntime runtime)77 public JVMCICompiler createCompiler(JVMCIRuntime runtime) { 78 return new EmptyHotspotCompiler(); 79 } 80 } 81 } 82