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Theodosius/include/decomp/routine.hpp

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// Copyright (c) 2022, _xeroxz
// 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 the copyright holder nor the names of its
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// 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
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#pragma once
#include <map>
#include <string>
#include <vector>
#include <spdlog/spdlog.h>
#include <decomp/symbol.hpp>
#define XED_ENCODER
extern "C" {
#include <xed-decode.h>
#include <xed-interface.h>
}
#define INSTR_SPLIT_SECTION_NAME ".obf"
namespace theo::decomp {
/// <summary>
/// the routine class which is responsible for creating symbols for routines. if
/// the routine is located inside a section with the name ".split" it will break
/// functions into instruction symbols.
/// </summary>
class routine_t {
public:
/// <summary>
/// the explicit constructor for routine_t.
/// </summary>
/// <param name="sym">the coff symbol for the routine.</param>
/// <param name="img">the coff image which contains the symbol.</param>
/// <param name="scn">the section header of the section that contains the
/// symbol.</param>
/// <param name="fn">the data (bytes) of the function.</param>
/// <param name="dcmp_type">the type of decomp to do. if this is
/// sym_type_t::function then this class wont split the function up into
/// individual instructions.</param>
explicit routine_t(coff::symbol_t* sym,
coff::image_t* img,
coff::section_header_t* scn,
std::vector<std::uint8_t>& fn,
sym_type_t dcmp_type);
/// <summary>
/// decompose the function into symbol(s).
/// </summary>
/// <returns>symbol(s) of the function.</returns>
std::vector<decomp::symbol_t> decompose();
/// <summary>
/// gets the section header of the section in which the symbol is located in.
/// </summary>
/// <returns>the section header of the section in which the symbol is located
/// in.</returns>
coff::section_header_t* scn();
/// <summary>
/// gets the function bytes.
/// </summary>
/// <returns>the function bytes.</returns>
std::vector<std::uint8_t> data();
private:
coff::symbol_t* m_sym;
std::vector<std::uint8_t> m_data;
coff::image_t* m_img;
coff::section_header_t* m_scn;
sym_type_t m_dcmp_type;
};
} // namespace theo::decomp