1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2011 Amaury Pouly
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __ELF_H__
#define __ELF_H__
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include <stdlib.h>
#include <unistd.h>
/**
* API
*/
enum elf_section_type_t
{
EST_LOAD,
EST_FILL
};
struct elf_section_t
{
char *name;
uint32_t addr; /* virtual address */
uint32_t size; /* virtual size */
enum elf_section_type_t type;
/* <union> */
void *section; /* data */
uint32_t pattern; /* fill pattern */
/* </union> */
struct elf_section_t *next;
/* Internal to elf_write_file */
uint32_t offset;
};
struct elf_segment_t
{
uint32_t vaddr; /* virtual address */
uint32_t paddr; /* physical address */
uint32_t vsize; /* virtual size */
uint32_t psize; /* physical size */
struct elf_segment_t *next;
};
struct elf_params_t
{
bool has_start_addr;
uint32_t start_addr;
struct elf_section_t *first_section;
struct elf_section_t *last_section;
struct elf_segment_t *first_segment;
struct elf_segment_t *last_segment;
};
typedef bool (*elf_read_fn_t)(void *user, uint32_t addr, void *buf, size_t count);
/* write function manages it's own error state */
typedef void (*elf_write_fn_t)(void *user, uint32_t addr, const void *buf, size_t count);
typedef void (*elf_printf_fn_t)(void *user, bool error, const char *fmt, ...);
void elf_init(struct elf_params_t *params);
void elf_add_load_section(struct elf_params_t *params,
uint32_t load_addr, uint32_t size, const void *section, const char *name);
void elf_add_fill_section(struct elf_params_t *params,
uint32_t fill_addr, uint32_t size, uint32_t pattern, const char *name);
uint32_t elf_translate_virtual_address(struct elf_params_t *params, uint32_t addr);
void elf_translate_addresses(struct elf_params_t *params);
void elf_simplify(struct elf_params_t *params);
void elf_sort_by_address(struct elf_params_t *params);
void elf_write_file(struct elf_params_t *params, elf_write_fn_t write, elf_printf_fn_t printf, void *user);
bool elf_read_file(struct elf_params_t *params, elf_read_fn_t read, elf_printf_fn_t printf,
void *user);
bool elf_is_empty(struct elf_params_t *params);
void elf_set_start_addr(struct elf_params_t *params, uint32_t addr);
bool elf_get_start_addr(struct elf_params_t *params, uint32_t *addr);
int elf_get_nr_sections(struct elf_params_t *params);
void elf_release(struct elf_params_t *params);
bool elf_guess(elf_read_fn_t read, void *user);
/* standard implementation of read/write/printf functions
* with user being a FILE* pointer */
void elf_std_printf(void *user, bool error, const char *fmt, ...);
void elf_std_write(void *user, uint32_t addr, const void *buf, size_t count);
bool elf_std_read(void *user, uint32_t addr, void *buf, size_t count);
#endif /* __ELF_H__ */
|
