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// SPDX-License-Identifier: GPL-2.0+
/*******************************************************************************
* QtMips - MIPS 32-bit Architecture Subset Simulator
*
* Implemented to support following courses:
*
* B35APO - Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b35apo
*
* B4M35PAP - Advanced Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
*
* Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
* Copyright (c) 2019 Pavel Pisa <pisa@cmp.felk.cvut.cz>
*
* Faculty of Electrical Engineering (http://www.fel.cvut.cz)
* Czech Technical University (http://www.cvut.cz/)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
******************************************************************************/
#ifndef PROGRAM_H
#define PROGRAM_H
#include <unistd.h>
#include <libelf.h>
#include <gelf.h>
#include <cstdint>
#include <qvector.h>
#include <qstring.h>
#include <memory.h>
#include "symboltable.h"
namespace machine {
class ProgramLoader {
public:
ProgramLoader(const char *file);
ProgramLoader(QString file);
~ProgramLoader();
void to_memory(Memory *mem); // Writes all loaded sections to memory
std::uint32_t end(); // Return address after which there is no more code for sure
std::uint32_t get_executable_entry();
SymbolTable *get_symbol_table();
private:
int fd;
Elf *elf;
GElf_Ehdr hdr; // elf file header
size_t n_secs; // number of sections in elf program header
Elf32_Phdr *phdrs; // program section headers
QVector<size_t> map; // external index to phdrs index
std::uint32_t executable_entry;
};
}
#endif // PROGRAM_H
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