libelf_msize.m4 revision 4484:7c56a6c9c265 
1/*-
2 * Copyright (c) 2006 Joseph Koshy
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/types.h>
28
29#include <assert.h>
30#include <string.h>
31
32#include "elf32.h"
33#include "elf64.h"
34#include "libelf.h"
35#include "_libelf.h"
36
37/* WARNING: GENERATED FROM __file__. */
38
39struct msize {
40	size_t	msz32;
41	size_t	msz64;
42};
43
44divert(-1)
45include(SRCDIR`/elf_types.m4')
46
47define(BYTE_SIZE,	1)
48define(NOTE_SIZE,	1)
49
50/*
51 * Unimplemented types.
52 */
53define(MOVEP_SIZE,	0)
54define(SXWORD_SIZE32,	0)
55define(XWORD_SIZE32,	0)
56
57define(`DEFINE_ELF_MSIZE',
58  `ifdef($1`_SIZE',
59    `define($1_SIZE32,$1_SIZE)
60     define($1_SIZE64,$1_SIZE)',
61    `ifdef($1`_SIZE32',`',
62      `define($1_SIZE32,sizeof(Elf32_$2))')
63     ifdef($1`_SIZE64',`',
64      `define($1_SIZE64,sizeof(Elf64_$2))')')')
65define(`DEFINE_ELF_MSIZES',
66  `ifelse($#,1,`',
67    `DEFINE_ELF_MSIZE($1)
68     DEFINE_ELF_MSIZES(shift($@))')')
69
70DEFINE_ELF_MSIZES(ELF_TYPE_LIST)
71
72define(`MSIZE',
73  `[ELF_T_$1] = { .msz32 = $1_SIZE32, .msz64 = $1_SIZE64 },')
74define(`MSIZES',
75  `ifelse($#,1,`',
76    `MSIZE($1)
77MSIZES(shift($@))')')
78
79divert(0)
80
81static struct msize msize[ELF_T_NUM] = {
82MSIZES(ELF_TYPE_LIST)
83};
84
85size_t
86_libelf_msize(Elf_Type t, int elfclass, unsigned int version)
87{
88	size_t sz;
89
90	assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64);
91	assert((signed) t >= ELF_T_FIRST && t <= ELF_T_LAST);
92
93	if (version != EV_CURRENT) {
94		LIBELF_SET_ERROR(VERSION, 0);
95		return (0);
96	}
97
98	sz = (elfclass == ELFCLASS32) ? msize[t].msz32 : msize[t].msz64;
99
100	return (sz);
101}
102