1 /*
 2  * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
 3  * Copyright (c) 2015, Red Hat Inc.
 4  * Copyright (c) 2021, Huawei Technologies Co., Ltd. All rights reserved.
 5  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 6  *
 7  * This code is free software; you can redistribute it and/or modify it
 8  * under the terms of the GNU General Public License version 2 only, as
 9  * published by the Free Software Foundation.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  *
25  */
26 
27 package sun.jvm.hotspot.runtime.riscv64;
28 
29 import sun.jvm.hotspot.debugger.*;
30 import sun.jvm.hotspot.runtime.*;
31 
32 public class RISCV64RegisterMap extends RegisterMap {
33 
34   /** This is the only public constructor */
35   public RISCV64RegisterMap(JavaThread thread, boolean updateMap) {
36     super(thread, updateMap);
37   }
38 
39   protected RISCV64RegisterMap(RegisterMap map) {
40     super(map);
41   }
42 
43   public Object clone() {
44     RISCV64RegisterMap retval = new RISCV64RegisterMap(this);
45     return retval;
46   }
47 
48   // no PD state to clear or copy:
49   protected void clearPD() {}
50   protected void initializePD() {}
51   protected void initializeFromPD(RegisterMap map) {}
52   protected Address getLocationPD(VMReg reg) { return null; }
53 }