1 /*
   2  * Copyright (c) 2011, 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 RuntimeStub.
  31  */
  32 public class HotSpotRuntimeStub extends HotSpotInstalledCode {
  33 
  34     public HotSpotRuntimeStub(String name) {
  35         super(name);
  36     }
  37 
  38     public ResolvedJavaMethod getMethod() {
  39         return null;
  40     }
  41 
  42     @Override
  43     public boolean isValid() {
  44         return true;
  45     }
  46 
  47     @Override
  48     public void invalidate() {
  49     }
  50 
  51     @Override
  52     public String toString() {
  53         return String.format("InstalledRuntimeStub[stub=%s, codeBlob=0x%x]", name, getAddress());
  54     }
  55 
  56     @Override
  57     public Object executeVarargs(Object... args) throws InvalidInstalledCodeException {
  58         throw new InternalError("Cannot call stub " + name);
  59     }
  60 }