1 /*
 2  * Copyright (c) 2004, 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.debugger.proc.riscv64;
28 
29 import sun.jvm.hotspot.debugger.*;
30 import sun.jvm.hotspot.debugger.riscv64.*;
31 import sun.jvm.hotspot.debugger.proc.*;
32 import sun.jvm.hotspot.utilities.*;
33 
34 public class ProcRISCV64Thread implements ThreadProxy {
35     private ProcDebugger debugger;
36     private int         id;
37 
38     public ProcRISCV64Thread(ProcDebugger debugger, Address addr) {
39         this.debugger = debugger;
40 
41         // FIXME: the size here should be configurable. However, making it
42         // so would produce a dependency on the "types" package from the
43         // debugger package, which is not desired.
44         this.id       = (int) addr.getCIntegerAt(0, 4, true);
45     }
46 
47     public ProcRISCV64Thread(ProcDebugger debugger, long id) {
48         this.debugger = debugger;
49         this.id = (int) id;
50     }
51 
52     public ThreadContext getContext() throws IllegalThreadStateException {
53         ProcRISCV64ThreadContext context = new ProcRISCV64ThreadContext(debugger);
54         long[] regs = debugger.getThreadIntegerRegisterSet(id);
55         if (Assert.ASSERTS_ENABLED) {
56             Assert.that(regs.length == RISCV64ThreadContext.NPRGREG, "size mismatch");
57         }
58         for (int i = 0; i < regs.length; i++) {
59             context.setRegister(i, regs[i]);
60         }
61         return context;
62     }
63 
64     public boolean canSetContext() throws DebuggerException {
65         return false;
66     }
67 
68     public void setContext(ThreadContext context)
69     throws IllegalThreadStateException, DebuggerException {
70         throw new DebuggerException("Unimplemented");
71     }
72 
73     public String toString() {
74         return "t@" + id;
75     }
76 
77     public boolean equals(Object obj) {
78         if ((obj == null) || !(obj instanceof ProcRISCV64Thread)) {
79             return false;
80         }
81 
82         return (((ProcRISCV64Thread) obj).id == id);
83     }
84 
85     public int hashCode() {
86         return id;
87     }
88 }