mirror of
https://github.com/vtil-project/VTIL-Core
synced 2026-08-17 08:23:03 -04:00
83 lines
No EOL
3.5 KiB
C++
83 lines
No EOL
3.5 KiB
C++
// Copyright (c) 2020 Can Boluk and contributors of the VTIL Project
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
// 2. Redistributions in binary form must reproduce the above copyright
|
|
// notice, this list of conditions and the following disclaimer in the
|
|
// documentation and/or other materials provided with the distribution.
|
|
// 3. Neither the name of VTIL Project nor the names of its contributors
|
|
// may be used to endorse or promote products derived from this software
|
|
// without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
#pragma once
|
|
#include <vtil/utility>
|
|
#include <list>
|
|
#include "pointer.hpp"
|
|
#include "variable.hpp"
|
|
#include "../arch/register_desc.hpp"
|
|
|
|
namespace vtil::symbolic
|
|
{
|
|
struct memory
|
|
{
|
|
// Common typedefs.
|
|
//
|
|
using store_entry = std::pair<pointer, expression::reference>;
|
|
using store_type = std::list<store_entry>;
|
|
|
|
// The memory state.
|
|
//
|
|
bool relaxed_aliasing;
|
|
store_type value_map;
|
|
|
|
// Default constructor, optionally takes a boolean to indicate relaxed aliasing.
|
|
//
|
|
memory( bool relaxed_aliasing = false )
|
|
: relaxed_aliasing( relaxed_aliasing ) {}
|
|
|
|
// Default copy/move.
|
|
//
|
|
memory( memory&& ) = default;
|
|
memory( const memory& ) = default;
|
|
memory& operator=( memory&& ) = default;
|
|
memory& operator=( const memory& ) = default;
|
|
|
|
// Wrap around the store type.
|
|
//
|
|
auto begin() { return value_map.begin(); }
|
|
auto end() { return value_map.end(); }
|
|
auto begin() const { return value_map.cbegin(); }
|
|
auto end() const { return value_map.cend(); }
|
|
size_t size() const { return value_map.size(); }
|
|
void reset() { value_map.clear(); }
|
|
|
|
// Checks if the symbolic memory contains any writes to the given memory region.
|
|
//
|
|
trilean contains( const pointer& ptr, bitcnt_t size ) const;
|
|
|
|
// Reads N bits from the given pointer, returns null reference if alias failure occurs.
|
|
//
|
|
expression::reference read( const pointer& ptr, bitcnt_t size, const il_const_iterator& reference_iterator = symbolic::free_form_iterator ) const;
|
|
|
|
// Writes the given value to the pointer, returns null reference if alias failure occurs.
|
|
//
|
|
optional_reference<expression::reference> write( const pointer& ptr, deferred_value<expression::reference> value, bitcnt_t size );
|
|
optional_reference<expression::reference> write( const pointer& ptr, expression::reference value ) { return write( ptr, value, value.size() ); }
|
|
};
|
|
}; |