95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __ELF_H__
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#define __ELF_H__
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <unistd.h>
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/**
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* API
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*/
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enum elf_section_type_t
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{
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EST_LOAD,
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EST_FILL
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};
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struct elf_section_t
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{
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uint32_t addr; /* virtual address */
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uint32_t size; /* virtual size */
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enum elf_section_type_t type;
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/* <union> */
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void *section; /* data */
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uint32_t pattern; /* fill pattern */
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/* </union> */
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struct elf_section_t *next;
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/* Internal to elf_write_file */
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uint32_t offset;
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};
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struct elf_segment_t
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{
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uint32_t vaddr; /* virtual address */
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uint32_t paddr; /* physical address */
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uint32_t vsize; /* virtual size */
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uint32_t psize; /* physical size */
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struct elf_segment_t *next;
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};
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struct elf_params_t
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{
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bool has_start_addr;
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uint32_t start_addr;
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struct elf_section_t *first_section;
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struct elf_section_t *last_section;
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struct elf_segment_t *first_segment;
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struct elf_segment_t *last_segment;
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};
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typedef bool (*elf_read_fn_t)(void *user, uint32_t addr, void *buf, size_t count);
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/* write function manages it's own error state */
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typedef void (*elf_write_fn_t)(void *user, uint32_t addr, const void *buf, size_t count);
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typedef void (*elf_printf_fn_t)(void *user, bool error, const char *fmt, ...);
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void elf_init(struct elf_params_t *params);
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void elf_add_load_section(struct elf_params_t *params,
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uint32_t load_addr, uint32_t size, const void *section);
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void elf_add_fill_section(struct elf_params_t *params,
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uint32_t fill_addr, uint32_t size, uint32_t pattern);
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uint32_t elf_translate_virtual_address(struct elf_params_t *params, uint32_t addr);
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void elf_translate_addresses(struct elf_params_t *params);
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void elf_write_file(struct elf_params_t *params, elf_write_fn_t write, elf_printf_fn_t printf, void *user);
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bool elf_read_file(struct elf_params_t *params, elf_read_fn_t read, elf_printf_fn_t printf,
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void *user);
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bool elf_is_empty(struct elf_params_t *params);
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void elf_set_start_addr(struct elf_params_t *params, uint32_t addr);
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bool elf_get_start_addr(struct elf_params_t *params, uint32_t *addr);
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int elf_get_nr_sections(struct elf_params_t *params);
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void elf_release(struct elf_params_t *params);
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#endif /* __ELF_H__ */
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