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 <libelf.h>
28
29 #include "_libelf.h"
30
31 ELFTC_VCSID("$Id: libelf_data.c 3737 2019-05-05 14:49:50Z jkoshy $");
32
33 int
_libelf_xlate_shtype(uint32_t sht)34 _libelf_xlate_shtype(uint32_t sht)
35 {
36 /*
37 * Look for known section types.
38 */
39 switch (sht) {
40 case SHT_DYNAMIC:
41 return (ELF_T_DYN);
42 case SHT_DYNSYM:
43 return (ELF_T_SYM);
44 case SHT_FINI_ARRAY:
45 return (ELF_T_ADDR);
46 case SHT_GNU_HASH:
47 return (ELF_T_GNUHASH);
48 case SHT_GNU_LIBLIST:
49 return (ELF_T_WORD);
50 case SHT_GROUP:
51 return (ELF_T_WORD);
52 case SHT_HASH:
53 return (ELF_T_WORD);
54 case SHT_INIT_ARRAY:
55 return (ELF_T_ADDR);
56 case SHT_NOBITS:
57 return (ELF_T_BYTE);
58 case SHT_NOTE:
59 return (ELF_T_NOTE);
60 case SHT_PREINIT_ARRAY:
61 return (ELF_T_ADDR);
62 case SHT_PROGBITS:
63 return (ELF_T_BYTE);
64 case SHT_REL:
65 return (ELF_T_REL);
66 case SHT_RELA:
67 return (ELF_T_RELA);
68 case SHT_STRTAB:
69 return (ELF_T_BYTE);
70 case SHT_SYMTAB:
71 return (ELF_T_SYM);
72 case SHT_SYMTAB_SHNDX:
73 return (ELF_T_WORD);
74 case SHT_SUNW_dof:
75 return (ELF_T_BYTE);
76 case SHT_SUNW_move:
77 return (ELF_T_MOVE);
78 case SHT_SUNW_syminfo:
79 return (ELF_T_SYMINFO);
80 case SHT_SUNW_verdef: /* == SHT_GNU_verdef */
81 return (ELF_T_VDEF);
82 case SHT_SUNW_verneed: /* == SHT_GNU_verneed */
83 return (ELF_T_VNEED);
84 case SHT_SUNW_versym: /* == SHT_GNU_versym */
85 return (ELF_T_HALF);
86 default:
87 /*
88 * Values in the range [SHT_LOOS..SHT_HIUSER] (i.e.,
89 * OS, processor and user-defined section types) are
90 * legal, but since we do not know anything more about
91 * their semantics, we return a type of ELF_T_BYTE.
92 *
93 * The ELF specification uses 32 bit unsigned values for
94 * denoting section types, and defines SHT_HIUSER to be
95 * 0xFFFFFFFFUL (i.e., UINT32_MAX). Consequently, we only
96 * need to check that 'sht' is greater than or equal to
97 * SHT_LOOS.
98 */
99 if (sht >= SHT_LOOS)
100 return (ELF_T_BYTE);
101
102 /*
103 * Other values are unsupported.
104 */
105 return (-1);
106 }
107 }
108