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>
35 ELFTC_VCSID("$Id: gelf_move.c 2272 2011-12-03 17:07:31Z jkoshy $");
38 gelf_getmove(Elf_Data *ed, int ndx, GElf_Move *dst)
47 struct _Libelf_Data *d;
49 d = (struct _Libelf_Data *) ed;
51 if (d == NULL || ndx < 0 || dst == NULL ||
52 (scn = d->d_scn) == NULL ||
53 (e = scn->s_elf) == NULL) {
54 LIBELF_SET_ERROR(ARGUMENT, 0);
59 assert(ec == ELFCLASS32 || ec == ELFCLASS64);
62 sh_type = scn->s_shdr.s_shdr32.sh_type;
64 sh_type = scn->s_shdr.s_shdr64.sh_type;
66 if (_libelf_xlate_shtype(sh_type) != ELF_T_MOVE) {
67 LIBELF_SET_ERROR(ARGUMENT, 0);
71 msz = _libelf_msize(ELF_T_MOVE, ec, e->e_version);
75 if (msz * ndx >= d->d_data.d_size) {
76 LIBELF_SET_ERROR(ARGUMENT, 0);
80 if (ec == ELFCLASS32) {
82 move32 = (Elf32_Move *) d->d_data.d_buf + ndx;
84 dst->m_value = move32->m_value;
85 dst->m_info = (Elf64_Xword) move32->m_info;
86 dst->m_poffset = (Elf64_Xword) move32->m_poffset;
87 dst->m_repeat = move32->m_repeat;
88 dst->m_stride = move32->m_stride;
91 move64 = (Elf64_Move *) d->d_data.d_buf + ndx;
100 gelf_update_move(Elf_Data *ed, int ndx, GElf_Move *gm)
109 struct _Libelf_Data *d;
111 d = (struct _Libelf_Data *) ed;
113 if (d == NULL || ndx < 0 || gm == NULL ||
114 (scn = d->d_scn) == NULL ||
115 (e = scn->s_elf) == NULL) {
116 LIBELF_SET_ERROR(ARGUMENT, 0);
121 assert(ec == ELFCLASS32 || ec == ELFCLASS64);
123 if (ec == ELFCLASS32)
124 sh_type = scn->s_shdr.s_shdr32.sh_type;
126 sh_type = scn->s_shdr.s_shdr64.sh_type;
128 if (_libelf_xlate_shtype(sh_type) != ELF_T_MOVE) {
129 LIBELF_SET_ERROR(ARGUMENT, 0);
133 msz = _libelf_msize(ELF_T_MOVE, ec, e->e_version);
136 if (msz * ndx >= d->d_data.d_size) {
137 LIBELF_SET_ERROR(ARGUMENT, 0);
141 if (ec == ELFCLASS32) {
142 move32 = (Elf32_Move *) d->d_data.d_buf + ndx;
144 move32->m_value = gm->m_value;
145 LIBELF_COPY_U32(move32, gm, m_info);
146 LIBELF_COPY_U32(move32, gm, m_poffset);
147 move32->m_repeat = gm->m_repeat;
148 move32->m_stride = gm->m_stride;
151 move64 = (Elf64_Move *) d->d_data.d_buf + ndx;