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/cdefs.h>
| 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/cdefs.h>
|
28__FBSDID("$FreeBSD: head/lib/libelf/libelf_align.c 164190 2006-11-11 17:16:35Z jkoshy $");
| 28__FBSDID("$FreeBSD: head/lib/libelf/libelf_align.c 165316 2006-12-18 05:36:23Z jkoshy $");
|
29
30#include <sys/types.h>
31
32#include <machine/elf.h>
33#include <machine/endian.h>
34
35#include <libelf.h>
36#include <osreldate.h>
37
38#include "_libelf.h"
39
40struct align {
41 int a32;
42 int a64;
43};
44
45#ifdef __GNUC__
46#define MALIGN(N) { \
47 .a32 = __alignof__(Elf32_##N), \
48 .a64 = __alignof__(Elf64_##N) \
49 }
50#define MALIGN64(V) { \
51 .a32 = 0, \
52 .a64 = __alignof__(Elf64_##V) \
53 }
54#else
55#error Need the __alignof__ builtin.
56#endif
57#define UNSUPPORTED() { \
58 .a32 = 0, \
59 .a64 = 0 \
60 }
61
62static struct align malign[ELF_T_NUM] = {
63 [ELF_T_ADDR] = MALIGN(Addr),
64 [ELF_T_BYTE] = { .a32 = 1, .a64 = 1 },
| 29
30#include <sys/types.h>
31
32#include <machine/elf.h>
33#include <machine/endian.h>
34
35#include <libelf.h>
36#include <osreldate.h>
37
38#include "_libelf.h"
39
40struct align {
41 int a32;
42 int a64;
43};
44
45#ifdef __GNUC__
46#define MALIGN(N) { \
47 .a32 = __alignof__(Elf32_##N), \
48 .a64 = __alignof__(Elf64_##N) \
49 }
50#define MALIGN64(V) { \
51 .a32 = 0, \
52 .a64 = __alignof__(Elf64_##V) \
53 }
54#else
55#error Need the __alignof__ builtin.
56#endif
57#define UNSUPPORTED() { \
58 .a32 = 0, \
59 .a64 = 0 \
60 }
61
62static struct align malign[ELF_T_NUM] = {
63 [ELF_T_ADDR] = MALIGN(Addr),
64 [ELF_T_BYTE] = { .a32 = 1, .a64 = 1 },
|
65#if __FreeBSD_version >= 700009
| 65#if __FreeBSD_version >= 700025
|
66 [ELF_T_CAP] = MALIGN(Cap),
67#endif
68 [ELF_T_DYN] = MALIGN(Dyn),
69 [ELF_T_EHDR] = MALIGN(Ehdr),
70 [ELF_T_HALF] = MALIGN(Half),
| 66 [ELF_T_CAP] = MALIGN(Cap),
67#endif
68 [ELF_T_DYN] = MALIGN(Dyn),
69 [ELF_T_EHDR] = MALIGN(Ehdr),
70 [ELF_T_HALF] = MALIGN(Half),
|
71#if __FreeBSD_version >= 700009
| 71#if __FreeBSD_version >= 700025
|
72 [ELF_T_LWORD] = MALIGN(Lword),
73 [ELF_T_MOVE] = MALIGN(Move),
74#endif
75 [ELF_T_MOVEP] = UNSUPPORTED(),
| 72 [ELF_T_LWORD] = MALIGN(Lword),
73 [ELF_T_MOVE] = MALIGN(Move),
74#endif
75 [ELF_T_MOVEP] = UNSUPPORTED(),
|
76#if __FreeBSD_version >= 700009
| 76#if __FreeBSD_version >= 700025
|
77 [ELF_T_NOTE] = MALIGN(Nhdr),
78#endif
79 [ELF_T_OFF] = MALIGN(Off),
80 [ELF_T_PHDR] = MALIGN(Phdr),
81 [ELF_T_REL] = MALIGN(Rel),
82 [ELF_T_RELA] = MALIGN(Rela),
83 [ELF_T_SHDR] = MALIGN(Shdr),
84 [ELF_T_SWORD] = MALIGN(Sword),
85 [ELF_T_SXWORD] = MALIGN64(Sxword),
86 [ELF_T_SYM] = MALIGN(Sym),
| 77 [ELF_T_NOTE] = MALIGN(Nhdr),
78#endif
79 [ELF_T_OFF] = MALIGN(Off),
80 [ELF_T_PHDR] = MALIGN(Phdr),
81 [ELF_T_REL] = MALIGN(Rel),
82 [ELF_T_RELA] = MALIGN(Rela),
83 [ELF_T_SHDR] = MALIGN(Shdr),
84 [ELF_T_SWORD] = MALIGN(Sword),
85 [ELF_T_SXWORD] = MALIGN64(Sxword),
86 [ELF_T_SYM] = MALIGN(Sym),
|
87#if __FreeBSD_version >= 700009
| 87#if __FreeBSD_version >= 700025
|
88 [ELF_T_SYMINFO] = MALIGN(Syminfo),
89#endif
90#if __FreeBSD_version >= 700009
91 [ELF_T_VDEF] = MALIGN(Verdef),
92 [ELF_T_VNEED] = MALIGN(Verneed),
93#endif
94 [ELF_T_WORD] = MALIGN(Word),
95 [ELF_T_XWORD] = MALIGN64(Xword)
96};
97
98int
99_libelf_malign(Elf_Type t, int elfclass)
100{
101 if (t >= ELF_T_NUM || (int) t < 0)
102 return (0);
103
104 return (elfclass == ELFCLASS32 ? malign[t].a32 :
105 malign[t].a64);
106}
107
108#define FALIGN(A32,A64) { .a32 = (A32), .a64 = (A64) }
109
110static struct align falign[ELF_T_NUM] = {
111 [ELF_T_ADDR] = FALIGN(4,8),
112 [ELF_T_BYTE] = FALIGN(1,1),
| 88 [ELF_T_SYMINFO] = MALIGN(Syminfo),
89#endif
90#if __FreeBSD_version >= 700009
91 [ELF_T_VDEF] = MALIGN(Verdef),
92 [ELF_T_VNEED] = MALIGN(Verneed),
93#endif
94 [ELF_T_WORD] = MALIGN(Word),
95 [ELF_T_XWORD] = MALIGN64(Xword)
96};
97
98int
99_libelf_malign(Elf_Type t, int elfclass)
100{
101 if (t >= ELF_T_NUM || (int) t < 0)
102 return (0);
103
104 return (elfclass == ELFCLASS32 ? malign[t].a32 :
105 malign[t].a64);
106}
107
108#define FALIGN(A32,A64) { .a32 = (A32), .a64 = (A64) }
109
110static struct align falign[ELF_T_NUM] = {
111 [ELF_T_ADDR] = FALIGN(4,8),
112 [ELF_T_BYTE] = FALIGN(1,1),
|
113#if __FreeBSD_version >= 700009
| 113#if __FreeBSD_version >= 700025
|
114 [ELF_T_CAP] = FALIGN(4,8),
115#endif
116 [ELF_T_DYN] = FALIGN(4,8),
117 [ELF_T_EHDR] = FALIGN(4,8),
118 [ELF_T_HALF] = FALIGN(2,2),
| 114 [ELF_T_CAP] = FALIGN(4,8),
115#endif
116 [ELF_T_DYN] = FALIGN(4,8),
117 [ELF_T_EHDR] = FALIGN(4,8),
118 [ELF_T_HALF] = FALIGN(2,2),
|
119#if __FreeBSD_version >= 700009
| 119#if __FreeBSD_version >= 700025
|
120 [ELF_T_LWORD] = FALIGN(8,8),
121 [ELF_T_MOVE] = FALIGN(8,8),
122#endif
123 [ELF_T_MOVEP] = UNSUPPORTED(),
| 120 [ELF_T_LWORD] = FALIGN(8,8),
121 [ELF_T_MOVE] = FALIGN(8,8),
122#endif
123 [ELF_T_MOVEP] = UNSUPPORTED(),
|
124#if __FreeBSD_version >= 700009
| 124#if __FreeBSD_version >= 700025
|
125 [ELF_T_NOTE] = FALIGN(4,4),
126#endif
127 [ELF_T_OFF] = FALIGN(4,8),
128 [ELF_T_PHDR] = FALIGN(4,8),
129 [ELF_T_REL] = FALIGN(4,8),
130 [ELF_T_RELA] = FALIGN(4,8),
131 [ELF_T_SHDR] = FALIGN(4,8),
132 [ELF_T_SWORD] = FALIGN(4,4),
133 [ELF_T_SXWORD] = FALIGN(0,8),
134 [ELF_T_SYM] = FALIGN(4,8),
| 125 [ELF_T_NOTE] = FALIGN(4,4),
126#endif
127 [ELF_T_OFF] = FALIGN(4,8),
128 [ELF_T_PHDR] = FALIGN(4,8),
129 [ELF_T_REL] = FALIGN(4,8),
130 [ELF_T_RELA] = FALIGN(4,8),
131 [ELF_T_SHDR] = FALIGN(4,8),
132 [ELF_T_SWORD] = FALIGN(4,4),
133 [ELF_T_SXWORD] = FALIGN(0,8),
134 [ELF_T_SYM] = FALIGN(4,8),
|
135#if __FreeBSD_version >= 700009
| 135#if __FreeBSD_version >= 700025
|
136 [ELF_T_SYMINFO] = FALIGN(2,2),
137#endif
138#if __FreeBSD_version >= 700009
139 [ELF_T_VDEF] = FALIGN(4,4),
140 [ELF_T_VNEED] = FALIGN(4,4),
141#endif
142 [ELF_T_WORD] = FALIGN(4,4),
143 [ELF_T_XWORD] = FALIGN(0,8)
144};
145
146int
147_libelf_falign(Elf_Type t, int elfclass)
148{
149 if (t >= ELF_T_NUM || (int) t < 0)
150 return (0);
151
152 return (elfclass == ELFCLASS32 ? falign[t].a32 :
153 falign[t].a64);
154}
| 136 [ELF_T_SYMINFO] = FALIGN(2,2),
137#endif
138#if __FreeBSD_version >= 700009
139 [ELF_T_VDEF] = FALIGN(4,4),
140 [ELF_T_VNEED] = FALIGN(4,4),
141#endif
142 [ELF_T_WORD] = FALIGN(4,4),
143 [ELF_T_XWORD] = FALIGN(0,8)
144};
145
146int
147_libelf_falign(Elf_Type t, int elfclass)
148{
149 if (t >= ELF_T_NUM || (int) t < 0)
150 return (0);
151
152 return (elfclass == ELFCLASS32 ? falign[t].a32 :
153 falign[t].a64);
154}
|