xref: /freebsd/contrib/elftoolchain/libelf/libelf_msize.m4 (revision bc96366c864c07ef352edb92017357917c75b36c)
1/*-
2 * Copyright (c) 2006,2008-2011 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/cdefs.h>
28
29#include <assert.h>
30#include <libelf.h>
31#include <string.h>
32
33#include "_libelf.h"
34
35ELFTC_VCSID("$Id: libelf_msize.m4 2225 2011-11-26 18:55:54Z jkoshy $");
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
47/*
48 * ELF types whose memory representations have a variable size.
49 */
50define(BYTE_SIZE,	1)
51define(GNUHASH_SIZE,	1)
52define(NOTE_SIZE,	1)
53define(VDEF_SIZE,	1)
54define(VNEED_SIZE,	1)
55
56/*
57 * Unimplemented types.
58 */
59define(MOVEP_SIZE,	0)
60define(SXWORD_SIZE32,	0)
61define(XWORD_SIZE32,	0)
62
63define(`DEFINE_ELF_MSIZE',
64  `ifdef($1`_SIZE',
65    `define($1_SIZE32,$1_SIZE)
66     define($1_SIZE64,$1_SIZE)',
67    `ifdef($1`_SIZE32',`',
68      `define($1_SIZE32,sizeof(Elf32_$2))')
69     ifdef($1`_SIZE64',`',
70      `define($1_SIZE64,sizeof(Elf64_$2))')')')
71define(`DEFINE_ELF_MSIZES',
72  `ifelse($#,1,`',
73    `DEFINE_ELF_MSIZE($1)
74     DEFINE_ELF_MSIZES(shift($@))')')
75
76DEFINE_ELF_MSIZES(ELF_TYPE_LIST)
77
78define(`MSIZE',
79  `[ELF_T_$1] = { .msz32 = $1_SIZE32, .msz64 = $1_SIZE64 },
80')
81define(`MSIZES',
82  `ifelse($#,1,`',
83    `MSIZE($1)
84MSIZES(shift($@))')')
85
86divert(0)
87
88static struct msize msize[ELF_T_NUM] = {
89MSIZES(ELF_TYPE_LIST)
90};
91
92size_t
93_libelf_msize(Elf_Type t, int elfclass, unsigned int version)
94{
95	size_t sz;
96
97	assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64);
98	assert((signed) t >= ELF_T_FIRST && t <= ELF_T_LAST);
99
100	if (version != EV_CURRENT) {
101		LIBELF_SET_ERROR(VERSION, 0);
102		return (0);
103	}
104
105	sz = (elfclass == ELFCLASS32) ? msize[t].msz32 : msize[t].msz64;
106
107	return (sz);
108}
109