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// binary.h -- binary input files for gold -*- C++ -*-
// Copyright (C) 2008-2020 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
// 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 3 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.
// Support binary input files by making them look like an ELF file.
#ifndef GOLD_BINARY_H
#define GOLD_BINARY_H
#include <string>
#include "elfcpp.h"
namespace gold
{
class Task;
template<typename Stringpool_char>
class Stringpool_template;
// This class takes a file name and creates a buffer which looks like
// an ELF file read into memory.
class Binary_to_elf
{
public:
Binary_to_elf(elfcpp::EM machine, int size, bool big_endian,
const std::string& filename);
~Binary_to_elf();
// Read contents and create an ELF buffer. Return true if this
// succeeds, false otherwise.
bool
convert(const Task*);
// Return a pointer to the contents of the ELF file.
const unsigned char*
converted_data() const
{ return this->data_; }
// Return a pointer to the contents of the ELF file and let the
// caller take charge of it. It was allocated using new[].
unsigned char*
converted_data_leak()
{
unsigned char* ret = this->data_;
this->data_ = NULL;
return ret;
}
// Return the size of the ELF file.
size_t
converted_size() const
{ return this->filesize_; }
private:
Binary_to_elf(const Binary_to_elf&);
Binary_to_elf& operator=(const Binary_to_elf&);
template<int size, bool big_endian>
bool
sized_convert(const Task*);
template<int size, bool big_endian>
void
write_file_header(unsigned char**);
template<int size, bool big_endian>
void
write_section_header(const char*, const Stringpool_template<char>*,
elfcpp::SHT, unsigned int, section_size_type,
section_size_type, unsigned int, unsigned int,
unsigned int, unsigned int, unsigned char**);
template<int size, bool big_endian>
void
write_symbol(const std::string&, const Stringpool_template<char>*,
section_size_type, typename elfcpp::Elf_types<32>::Elf_WXword,
unsigned int, unsigned char**);
// The ELF machine code of the file to create.
elfcpp::EM elf_machine_;
// The size of the file to create, 32 or 64.
int size_;
// Whether to create a big endian file.
bool big_endian_;
// The name of the file to read.
std::string filename_;
// The ELF file data, allocated by new [].
unsigned char* data_;
// The ELF file size.
section_size_type filesize_;
};
} // End namespace gold.
#endif // !defined(GOLD_BINARY_H)
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