libelf_data.c revision 276371 
1/*-
2 * Copyright (c) 2006,2008 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 <libelf.h>
30
31#include "_libelf.h"
32
33ELFTC_VCSID("$Id: libelf_data.c 3080 2014-07-28 08:46:17Z jkoshy $");
34
35int
36_libelf_xlate_shtype(uint32_t sht)
37{
38	/*
39	 * Look for known section types.
40	 */
41	switch (sht) {
42	case SHT_DYNAMIC:
43		return (ELF_T_DYN);
44	case SHT_DYNSYM:
45		return (ELF_T_SYM);
46	case SHT_FINI_ARRAY:
47		return (ELF_T_ADDR);
48	case SHT_GNU_HASH:
49		return (ELF_T_GNUHASH);
50	case SHT_GNU_LIBLIST:
51		return (ELF_T_WORD);
52	case SHT_GROUP:
53		return (ELF_T_WORD);
54	case SHT_HASH:
55		return (ELF_T_WORD);
56	case SHT_INIT_ARRAY:
57		return (ELF_T_ADDR);
58	case SHT_NOBITS:
59		return (ELF_T_BYTE);
60	case SHT_NOTE:
61		return (ELF_T_NOTE);
62	case SHT_PREINIT_ARRAY:
63		return (ELF_T_ADDR);
64	case SHT_PROGBITS:
65		return (ELF_T_BYTE);
66	case SHT_REL:
67		return (ELF_T_REL);
68	case SHT_RELA:
69		return (ELF_T_RELA);
70	case SHT_STRTAB:
71		return (ELF_T_BYTE);
72	case SHT_SYMTAB:
73		return (ELF_T_SYM);
74	case SHT_SYMTAB_SHNDX:
75		return (ELF_T_WORD);
76	case SHT_SUNW_dof:
77		return (ELF_T_BYTE);
78	case SHT_SUNW_move:
79		return (ELF_T_MOVE);
80	case SHT_SUNW_syminfo:
81		return (ELF_T_SYMINFO);
82	case SHT_SUNW_verdef:	/* == SHT_GNU_verdef */
83		return (ELF_T_VDEF);
84	case SHT_SUNW_verneed:	/* == SHT_GNU_verneed */
85		return (ELF_T_VNEED);
86	case SHT_SUNW_versym:	/* == SHT_GNU_versym */
87		return (ELF_T_HALF);
88	default:
89		/*
90		 * Values in the range [SHT_LOOS..SHT_HIUSER] (i.e.,
91		 * OS, processor and user-defined section types) are
92		 * legal, but since we do not know anything more about
93		 * their semantics, we return a type of ELF_T_BYTE.
94		 */
95		if (sht >= SHT_LOOS && sht <= SHT_HIUSER)
96			return (ELF_T_BYTE);
97
98		/*
99		 * Other values are unsupported.
100		 */
101		return (-1);
102	}
103}
104