111723Sar4jc@virginia.edu/*
211963Sar4jc@virginia.edu * Copyright (c) 2017 The University of Virginia
311963Sar4jc@virginia.edu * Copyright 2015 LabWare
411963Sar4jc@virginia.edu * Copyright 2014 Google, Inc.
511963Sar4jc@virginia.edu * Copyright (c) 2007 The Regents of The University of Michigan
611723Sar4jc@virginia.edu * All rights reserved.
711723Sar4jc@virginia.edu *
811723Sar4jc@virginia.edu * Redistribution and use in source and binary forms, with or without
911723Sar4jc@virginia.edu * modification, are permitted provided that the following conditions are
1011723Sar4jc@virginia.edu * met: redistributions of source code must retain the above copyright
1111723Sar4jc@virginia.edu * notice, this list of conditions and the following disclaimer;
1211723Sar4jc@virginia.edu * redistributions in binary form must reproduce the above copyright
1311723Sar4jc@virginia.edu * notice, this list of conditions and the following disclaimer in the
1411723Sar4jc@virginia.edu * documentation and/or other materials provided with the distribution;
1511723Sar4jc@virginia.edu * neither the name of the copyright holders nor the names of its
1611723Sar4jc@virginia.edu * contributors may be used to endorse or promote products derived from
1711723Sar4jc@virginia.edu * this software without specific prior written permission.
1811723Sar4jc@virginia.edu *
1911723Sar4jc@virginia.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
2011723Sar4jc@virginia.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
2111723Sar4jc@virginia.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
2211723Sar4jc@virginia.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
2311723Sar4jc@virginia.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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2611723Sar4jc@virginia.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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2811723Sar4jc@virginia.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
2911723Sar4jc@virginia.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
3011723Sar4jc@virginia.edu *
3111723Sar4jc@virginia.edu * Authors: Nathan Binkert
3211963Sar4jc@virginia.edu *          Boris Shingarov
3311963Sar4jc@virginia.edu *          Alec Roelke
3411723Sar4jc@virginia.edu */
3511723Sar4jc@virginia.edu
3611723Sar4jc@virginia.edu#ifndef __ARCH_RISCV_REMOTE_GDB_HH__
3711723Sar4jc@virginia.edu#define __ARCH_RISCV_REMOTE_GDB_HH__
3811723Sar4jc@virginia.edu
3911963Sar4jc@virginia.edu#include <string>
4011963Sar4jc@virginia.edu
4111963Sar4jc@virginia.edu#include "arch/riscv/registers.hh"
4211723Sar4jc@virginia.edu#include "base/remote_gdb.hh"
4311723Sar4jc@virginia.edu
4411723Sar4jc@virginia.educlass System;
4511723Sar4jc@virginia.educlass ThreadContext;
4611723Sar4jc@virginia.edu
4711723Sar4jc@virginia.edunamespace RiscvISA
4811723Sar4jc@virginia.edu{
4911723Sar4jc@virginia.edu
5011723Sar4jc@virginia.educlass RemoteGDB : public BaseRemoteGDB
5111723Sar4jc@virginia.edu{
5211963Sar4jc@virginia.edu  protected:
5314186Salec.roelke@gmail.com    static const int NumGDBRegs = 4162;
5414186Salec.roelke@gmail.com    static const int NumCSRs = 4096;
5511963Sar4jc@virginia.edu
5611963Sar4jc@virginia.edu    bool acc(Addr addr, size_t len);
5714186Salec.roelke@gmail.com    // A breakpoint will be 2 bytes if it is compressed and 4 if not
5814186Salec.roelke@gmail.com    bool checkBpLen(size_t len) override { return len == 2 || len == 4; }
5911963Sar4jc@virginia.edu
6011963Sar4jc@virginia.edu    class RiscvGdbRegCache : public BaseGdbRegCache
6111963Sar4jc@virginia.edu    {
6211963Sar4jc@virginia.edu      using BaseGdbRegCache::BaseGdbRegCache;
6311963Sar4jc@virginia.edu      private:
6411963Sar4jc@virginia.edu        struct {
6513612Sgabeblack@google.com            uint64_t gpr[NumIntArchRegs];
6613612Sgabeblack@google.com            uint64_t pc;
6714186Salec.roelke@gmail.com        } r;
6811963Sar4jc@virginia.edu      public:
6911963Sar4jc@virginia.edu        char *data() const { return (char *)&r; }
7011963Sar4jc@virginia.edu        size_t size() const { return sizeof(r); }
7111963Sar4jc@virginia.edu        void getRegs(ThreadContext*);
7211963Sar4jc@virginia.edu        void setRegs(ThreadContext*) const;
7311963Sar4jc@virginia.edu
7411963Sar4jc@virginia.edu        const std::string
7511963Sar4jc@virginia.edu        name() const
7611963Sar4jc@virginia.edu        {
7711963Sar4jc@virginia.edu            return gdb->name() + ".RiscvGdbRegCache";
7811963Sar4jc@virginia.edu        }
7911963Sar4jc@virginia.edu    };
8011963Sar4jc@virginia.edu
8112031Sgabeblack@google.com    RiscvGdbRegCache regCache;
8211963Sar4jc@virginia.edu
8311723Sar4jc@virginia.edu  public:
8412449Sgabeblack@google.com    RemoteGDB(System *_system, ThreadContext *tc, int _port);
8511963Sar4jc@virginia.edu    BaseGdbRegCache *gdbRegs();
8611723Sar4jc@virginia.edu};
8711723Sar4jc@virginia.edu
8811723Sar4jc@virginia.edu} // namespace RiscvISA
8911723Sar4jc@virginia.edu
9011723Sar4jc@virginia.edu#endif /* __ARCH_RISCV_REMOTE_GDB_H__ */
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