2 * Copyright (c) 2006,2008 Joseph Koshy
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
27 #include <sys/cdefs.h>
34 ELFTC_VCSID("$Id: gelf_syminfo.c 2998 2014-03-18 17:19:00Z jkoshy $");
37 gelf_getsyminfo(Elf_Data *ed, int ndx, GElf_Syminfo *dst)
44 struct _Libelf_Data *d;
45 Elf32_Syminfo *syminfo32;
46 Elf64_Syminfo *syminfo64;
48 d = (struct _Libelf_Data *) ed;
50 if (d == NULL || ndx < 0 || dst == NULL ||
51 (scn = d->d_scn) == NULL ||
52 (e = scn->s_elf) == NULL) {
53 LIBELF_SET_ERROR(ARGUMENT, 0);
58 assert(ec == ELFCLASS32 || ec == ELFCLASS64);
61 sh_type = scn->s_shdr.s_shdr32.sh_type;
63 sh_type = scn->s_shdr.s_shdr64.sh_type;
65 if (_libelf_xlate_shtype(sh_type) != ELF_T_SYMINFO) {
66 LIBELF_SET_ERROR(ARGUMENT, 0);
70 msz = _libelf_msize(ELF_T_SYMINFO, ec, e->e_version);
75 if (msz * (size_t) ndx >= d->d_data.d_size) {
76 LIBELF_SET_ERROR(ARGUMENT, 0);
80 if (ec == ELFCLASS32) {
82 syminfo32 = (Elf32_Syminfo *) d->d_data.d_buf + ndx;
84 dst->si_boundto = syminfo32->si_boundto;
85 dst->si_flags = syminfo32->si_flags;
89 syminfo64 = (Elf64_Syminfo *) d->d_data.d_buf + ndx;
98 gelf_update_syminfo(Elf_Data *ed, int ndx, GElf_Syminfo *gs)
105 struct _Libelf_Data *d;
106 Elf32_Syminfo *syminfo32;
107 Elf64_Syminfo *syminfo64;
109 d = (struct _Libelf_Data *) ed;
111 if (d == NULL || ndx < 0 || gs == NULL ||
112 (scn = d->d_scn) == NULL ||
113 (e = scn->s_elf) == NULL) {
114 LIBELF_SET_ERROR(ARGUMENT, 0);
119 assert(ec == ELFCLASS32 || ec == ELFCLASS64);
121 if (ec == ELFCLASS32)
122 sh_type = scn->s_shdr.s_shdr32.sh_type;
124 sh_type = scn->s_shdr.s_shdr64.sh_type;
126 if (_libelf_xlate_shtype(sh_type) != ELF_T_SYMINFO) {
127 LIBELF_SET_ERROR(ARGUMENT, 0);
131 msz = _libelf_msize(ELF_T_SYMINFO, ec, e->e_version);
136 if (msz * (size_t) ndx >= d->d_data.d_size) {
137 LIBELF_SET_ERROR(ARGUMENT, 0);
141 if (ec == ELFCLASS32) {
142 syminfo32 = (Elf32_Syminfo *) d->d_data.d_buf + ndx;
144 syminfo32->si_boundto = gs->si_boundto;
145 syminfo32->si_flags = gs->si_flags;
148 syminfo64 = (Elf64_Syminfo *) d->d_data.d_buf + ndx;