1 /* 2 * Copyright (c) 2011, 2019, 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 jdk.vm.ci.hotspot; 24 25 import jdk.vm.ci.code.InstalledCode; 26 import jdk.vm.ci.code.InvalidInstalledCodeException; 27 import jdk.vm.ci.meta.ResolvedJavaMethod; 28 29 /** 30 * Implementation of {@link InstalledCode} for code installed as a {@code RuntimeStub}. The address 31 * of the {@code RuntimeStub} is stored in {@link InstalledCode#address} and the value of 32 * {@code RuntimeStub::entry_point()} is in {@link InstalledCode#entryPoint}. 33 */ 34 public class HotSpotRuntimeStub extends HotSpotInstalledCode { 35 36 public HotSpotRuntimeStub(String name) { 37 super(name); 38 } 39 40 public ResolvedJavaMethod getMethod() { 41 return null; 42 } 43 44 @Override 45 public boolean isValid() { 46 return true; 47 } 48 49 @Override 50 public void invalidate() { 51 } 52 53 @Override 54 public String toString() { 55 return String.format("InstalledRuntimeStub[stub=%s, codeBlob=0x%x]", name, getAddress()); 56 } 57 58 @Override 59 public Object executeVarargs(Object... args) throws InvalidInstalledCodeException { 60 throw new InternalError("Cannot call stub " + name); 61 } 62 }