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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*-
* Copyright (c) 2006,2008-2011 Joseph Koshy
* 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.
*
* 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.
*/
#include <assert.h>
#include <libelf.h>
#include <string.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_msize.m4,v 1.2 2020/05/18 06:46:23 jsg Exp $");
/* WARNING: GENERATED FROM __file__. */
struct msize {
size_t msz32;
size_t msz64;
};
divert(-1)
include(SRCDIR`/elf_types.m4')
/*
* ELF types whose memory representations have a variable size.
*/
define(BYTE_SIZE, 1)
define(GNUHASH_SIZE, 1)
define(NOTE_SIZE, 1)
define(VDEF_SIZE, 1)
define(VNEED_SIZE, 1)
/*
* Unimplemented types.
*/
define(MOVEP_SIZE, 0)
define(SXWORD_SIZE32, 0)
define(XWORD_SIZE32, 0)
define(`DEFINE_ELF_MSIZE',
`ifdef($1`_SIZE',
`define($1_SIZE32,$1_SIZE)
define($1_SIZE64,$1_SIZE)',
`ifdef($1`_SIZE32',`',
`define($1_SIZE32,sizeof(Elf32_$2))')
ifdef($1`_SIZE64',`',
`define($1_SIZE64,sizeof(Elf64_$2))')')')
define(`DEFINE_ELF_MSIZES',
`ifelse($#,1,`',
`DEFINE_ELF_MSIZE($1)
DEFINE_ELF_MSIZES(shift($@))')')
DEFINE_ELF_MSIZES(ELF_TYPE_LIST)
define(`MSIZE',
`[ELF_T_$1] = { .msz32 = $1_SIZE32, .msz64 = $1_SIZE64 },
')
define(`MSIZES',
`ifelse($#,1,`',
`MSIZE($1)
MSIZES(shift($@))')')
divert(0)
static struct msize msize[ELF_T_NUM] = {
MSIZES(ELF_TYPE_LIST)
};
/*
* Returns the memory size of the specified ELF type 't' of ELF
* class 'ec' and ELF version 'version'.
*
* If the specified combination of ELF type, class, and version is
* unsupported then a value of 0 will be returned and the appropriate
* library error code set.
*/
size_t
_libelf_msize(Elf_Type t, int elfclass, unsigned int version)
{
size_t sz;
assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64);
assert((signed) t >= ELF_T_FIRST && t <= ELF_T_LAST);
if (version != EV_CURRENT) {
LIBELF_SET_ERROR(VERSION, 0);
return (0);
}
sz = (elfclass == ELFCLASS32) ? msize[t].msz32 : msize[t].msz64;
if (sz == 0) {
LIBELF_SET_ERROR(UNIMPL, 0);
return (0);
}
return (sz);
}
|
