remote_gdb.hh revision 13579:c892d017124f 
1/*
2 * Copyright 2015 LabWare
3 * Copyright 2014 Google, Inc.
4 * Copyright (c) 2013, 2016, 2018 ARM Limited
5 * All rights reserved
6 *
7 * The license below extends only to copyright in the software and shall
8 * not be construed as granting a license to any other intellectual
9 * property including but not limited to intellectual property relating
10 * to a hardware implementation of the functionality of the software
11 * licensed hereunder.  You may use the software subject to the license
12 * terms below provided that you ensure that this notice is replicated
13 * unmodified and in its entirety in all distributions of the software,
14 * modified or unmodified, in source code or in binary form.
15 *
16 * Copyright (c) 2002-2005 The Regents of The University of Michigan
17 * Copyright (c) 2007-2008 The Florida State University
18 * All rights reserved.
19 *
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions are
22 * met: redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer;
24 * redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution;
27 * neither the name of the copyright holders nor the names of its
28 * contributors may be used to endorse or promote products derived from
29 * this software without specific prior written permission.
30 *
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
36 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
37 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
38 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
39 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
40 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
41 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 *
43 * Authors: Nathan Binkert
44 *          Stephen Hines
45 *          Boris Shingarov
46 */
47
48#ifndef __ARCH_ARM_REMOTE_GDB_HH__
49#define __ARCH_ARM_REMOTE_GDB_HH__
50
51#include <algorithm>
52
53#include "arch/arm/registers.hh"
54#include "arch/arm/utility.hh"
55#include "base/compiler.hh"
56#include "base/remote_gdb.hh"
57
58class System;
59class ThreadContext;
60
61namespace ArmISA
62{
63
64class RemoteGDB : public BaseRemoteGDB
65{
66  protected:
67    bool acc(Addr addr, size_t len);
68
69    class AArch32GdbRegCache : public BaseGdbRegCache
70    {
71      using BaseGdbRegCache::BaseGdbRegCache;
72      private:
73        struct {
74          uint32_t gpr[16];
75          uint32_t cpsr;
76          uint64_t fpr[32];
77          uint32_t fpscr;
78        } M5_ATTR_PACKED r;
79      public:
80        char *data() const { return (char *)&r; }
81        size_t size() const { return sizeof(r); }
82        void getRegs(ThreadContext*);
83        void setRegs(ThreadContext*) const;
84        const std::string
85        name() const
86        {
87            return gdb->name() + ".AArch32GdbRegCache";
88        }
89    };
90
91    class AArch64GdbRegCache : public BaseGdbRegCache
92    {
93      using BaseGdbRegCache::BaseGdbRegCache;
94      private:
95        struct {
96          uint64_t x[31];
97          uint64_t spx;
98          uint64_t pc;
99          uint32_t cpsr;
100          VecElem v[NumVecV8ArchRegs * NumVecElemPerVecReg];
101          uint32_t fpsr;
102          uint32_t fpcr;
103        } M5_ATTR_PACKED r;
104      public:
105        char *data() const { return (char *)&r; }
106        size_t size() const { return sizeof(r); }
107        void getRegs(ThreadContext*);
108        void setRegs(ThreadContext*) const;
109        const std::string
110        name() const
111        {
112            return gdb->name() + ".AArch64GdbRegCache";
113        }
114    };
115
116    AArch32GdbRegCache regCache32;
117    AArch64GdbRegCache regCache64;
118
119  public:
120    RemoteGDB(System *_system, ThreadContext *tc, int _port);
121    BaseGdbRegCache *gdbRegs();
122    std::vector<std::string>
123    availableFeatures() const
124    {
125        return {"qXfer:features:read+"};
126    };
127    bool getXferFeaturesRead(const std::string &annex, std::string &output);
128};
129} // namespace ArmISA
130
131#endif /* __ARCH_ARM_REMOTE_GDB_H__ */
132