1/*
2 * Copyright (c) 2001, 2012, 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
25package sun.jvm.hotspot.runtime.x86;
26
27import sun.jvm.hotspot.debugger.*;
28import sun.jvm.hotspot.runtime.*;
29
30public class X86RegisterMap extends RegisterMap {
31
32  /** This is the only public constructor */
33  public X86RegisterMap(JavaThread thread, boolean updateMap) {
34    super(thread, updateMap);
35  }
36
37  protected X86RegisterMap(RegisterMap map) {
38    super(map);
39  }
40
41  public Object clone() {
42    X86RegisterMap retval = new X86RegisterMap(this);
43    return retval;
44  }
45
46  // no PD state to clear or copy:
47  protected void clearPD() {}
48  protected void initializePD() {}
49  protected void initializeFromPD(RegisterMap map) {}
50  protected Address getLocationPD(VMReg reg) { return null; }
51}
52