remote_gdb.hh revision 11963:3fb6bb58e6a4 
1/*
2 * Copyright (c) 2017 The University of Virginia
3 * Copyright 2015 LabWare
4 * Copyright 2014 Google, Inc.
5 * Copyright (c) 2007 The Regents of The University of Michigan
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
10 * met: redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer;
12 * redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution;
15 * neither the name of the copyright holders nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * Authors: Nathan Binkert
32 *          Boris Shingarov
33 *          Alec Roelke
34 */
35
36#ifndef __ARCH_RISCV_REMOTE_GDB_HH__
37#define __ARCH_RISCV_REMOTE_GDB_HH__
38
39#include <string>
40
41#include "arch/riscv/registers.hh"
42#include "base/remote_gdb.hh"
43
44class System;
45class ThreadContext;
46
47namespace RiscvISA
48{
49
50class RemoteGDB : public BaseRemoteGDB
51{
52  protected:
53    static const int ExplicitCSRs = 4;
54
55    bool acc(Addr addr, size_t len);
56
57    class RiscvGdbRegCache : public BaseGdbRegCache
58    {
59      using BaseGdbRegCache::BaseGdbRegCache;
60      private:
61        struct {
62            IntReg gpr[NumIntArchRegs];
63            IntReg pc;
64            FloatRegBits fpr[NumFloatRegs];
65
66            MiscReg csr_base;
67            uint32_t fflags;
68            uint32_t frm;
69            uint32_t fcsr;
70            MiscReg csr[NumMiscRegs - ExplicitCSRs];
71        } __attribute__((__packed__)) r;
72      public:
73        char *data() const { return (char *)&r; }
74        size_t size() const { return sizeof(r); }
75        void getRegs(ThreadContext*);
76        void setRegs(ThreadContext*) const;
77
78        const std::string
79        name() const
80        {
81            return gdb->name() + ".RiscvGdbRegCache";
82        }
83    };
84
85
86  public:
87    RemoteGDB(System *_system, ThreadContext *tc);
88    BaseGdbRegCache *gdbRegs();
89};
90
91} // namespace RiscvISA
92
93#endif /* __ARCH_RISCV_REMOTE_GDB_H__ */
94