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
|
/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (c) 2000, Boris Popov
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Boris Popov.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _EF_H_
#define _EF_H_
#define EFT_KLD 1
#define EFT_KERNEL 2
#define EF_RELOC_REL 1
#define EF_RELOC_RELA 2
#define EF_GET_TYPE(ef) \
(ef)->ef_ops->get_type((ef)->ef_ef)
#define EF_CLOSE(ef) \
(ef)->ef_ops->close((ef)->ef_ef)
#define EF_READ(ef, offset, len, dest) \
(ef)->ef_ops->read((ef)->ef_ef, offset, len, dest)
#define EF_READ_ENTRY(ef, offset, len, ptr) \
(ef)->ef_ops->read_entry((ef)->ef_ef, offset, len, ptr)
#define EF_SEG_READ(ef, offset, len, dest) \
(ef)->ef_ops->seg_read((ef)->ef_ef, offset, len, dest)
#define EF_SEG_READ_REL(ef, offset, len, dest) \
(ef)->ef_ops->seg_read_rel((ef)->ef_ef, offset, len, dest)
#define EF_SEG_READ_STRING(ef, offset, len, dest) \
(ef)->ef_ops->seg_read_string((ef)->ef_ef, offset, len, dest)
#define EF_SEG_READ_ENTRY(ef, offset, len, ptr) \
(ef)->ef_ops->seg_read_entry((ef)->kf_ef, offset, len, ptr)
#define EF_SEG_READ_ENTRY_REL(ef, offset, len, ptr) \
(ef)->ef_ops->seg_read_entry_rel((ef)->ef_ef, offset, len, ptr)
#define EF_SYMADDR(ef, symidx) \
(ef)->ef_ops->symaddr((ef)->ef_ef, symidx)
#define EF_LOOKUP_SET(ef, name, startp, stopp, countp) \
(ef)->ef_ops->lookup_set((ef)->ef_ef, name, startp, stopp, countp)
#define EF_LOOKUP_SYMBOL(ef, name, sym) \
(ef)->ef_ops->lookup_symbol((ef)->ef_ef, name, sym)
/* XXX, should have a different name. */
typedef struct ef_file *elf_file_t;
struct elf_file_ops {
int (*get_type)(elf_file_t ef);
int (*close)(elf_file_t ef);
int (*read)(elf_file_t ef, Elf_Off offset, size_t len, void* dest);
int (*read_entry)(elf_file_t ef, Elf_Off offset, size_t len,
void **ptr);
int (*seg_read)(elf_file_t ef, Elf_Off offset, size_t len, void *dest);
int (*seg_read_rel)(elf_file_t ef, Elf_Off offset, size_t len,
void *dest);
int (*seg_read_string)(elf_file_t, Elf_Off offset, size_t len,
char *dest);
int (*seg_read_entry)(elf_file_t ef, Elf_Off offset, size_t len,
void**ptr);
int (*seg_read_entry_rel)(elf_file_t ef, Elf_Off offset, size_t len,
void**ptr);
Elf_Addr (*symaddr)(elf_file_t ef, Elf_Size symidx);
int (*lookup_set)(elf_file_t ef, const char *name, long *startp,
long *stopp, long *countp);
int (*lookup_symbol)(elf_file_t ef, const char* name, Elf_Sym** sym);
};
struct elf_file {
elf_file_t ef_ef;
struct elf_file_ops *ef_ops;
};
__BEGIN_DECLS
int ef_open(const char *filename, struct elf_file *ef, int verbose);
int ef_obj_open(const char *filename, struct elf_file *ef, int verbose);
int ef_reloc(struct elf_file *ef, const void *reldata, int reltype,
Elf_Off relbase, Elf_Off dataoff, size_t len, void *dest);
__END_DECLS
#endif /* _EF_H_*/
|
