registers.h

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//
// Bareflank Unwind Library
//
// Copyright (C) 2015 Assured Information Security, Inc.
// Author: Rian Quinn        <quinnr@ainfosec.com>
// Author: Brendan Kerrigan  <kerriganb@ainfosec.com>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

#ifndef REGISTERS_H
#define REGISTERS_H

#include <stdint.h>

#define MAX_NUM_REGISTERS 32

class register_state
{
public:

    register_state() = default;

    virtual ~register_state() = default;

    register_state(register_state &&) noexcept = default;

    register_state(const register_state &) = default;

    register_state &operator=(register_state &&) noexcept = default;

    register_state &operator=(const register_state &) = default;

    virtual uint64_t get_ip() const
    { return 0; }

    virtual register_state &set_ip(uint64_t value)
    { (void) value; return *this; }

    virtual uint64_t get(uint64_t index) const
    { (void) index; return 0; }

    virtual register_state &set(uint64_t index, uint64_t value)
    { (void) index; (void) value; return *this; }

    virtual void commit()
    { }

    virtual void commit(uint64_t cfa)
    { (void) cfa; }

    virtual void resume()
    { }

    virtual uint64_t max_num_registers() const
    { return 0; }

    virtual const char *name(uint64_t index) const
    { (void) index; return "forgot to overload name"; }

    virtual void dump() const
    { }
};

#endif