2 * Copyright (c) 2009 Kai Wang
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 "_libdwarf.h"
29 ELFTC_VCSID("$Id: libdwarf_elf_access.c 2070 2011-10-27 03:05:32Z jkoshy $");
32 _dwarf_elf_get_section_info(void *obj, Dwarf_Half ndx,
33 Dwarf_Obj_Access_Section *ret_section, int *error)
41 if (ret_section == NULL) {
43 *error = DW_DLE_ARGUMENT;
44 return (DW_DLV_ERROR);
47 if (ndx >= e->eo_seccnt) {
49 *error = DW_DLE_NO_ENTRY;
50 return (DW_DLV_NO_ENTRY);
53 sh = &e->eo_shdr[ndx];
55 ret_section->addr = sh->sh_addr;
56 ret_section->size = sh->sh_size;
58 ret_section->name = elf_strptr(e->eo_elf, e->eo_strndx, sh->sh_name);
59 if (ret_section->name == NULL) {
62 return (DW_DLV_ERROR);
69 _dwarf_elf_get_byte_order(void *obj)
76 switch (e->eo_ehdr.e_ident[EI_DATA]) {
78 return (DW_OBJECT_MSB);
83 return (DW_OBJECT_LSB);
88 _dwarf_elf_get_length_size(void *obj)
95 if (gelf_getclass(e->eo_elf) == ELFCLASS32)
97 else if (e->eo_ehdr.e_machine == EM_MIPS)
104 _dwarf_elf_get_pointer_size(void *obj)
111 if (gelf_getclass(e->eo_elf) == ELFCLASS32)
118 _dwarf_elf_get_section_count(void *obj)
125 return (e->eo_seccnt);
129 _dwarf_elf_load_section(void *obj, Dwarf_Half ndx, Dwarf_Small** ret_data,
138 if (ret_data == NULL) {
140 *error = DW_DLE_ARGUMENT;
141 return (DW_DLV_ERROR);
144 if (ndx >= e->eo_seccnt) {
146 *error = DW_DLE_NO_ENTRY;
147 return (DW_DLV_NO_ENTRY);
150 ed = &e->eo_data[ndx];
152 if (ed->ed_alloc != NULL)
153 *ret_data = ed->ed_alloc;
155 if (ed->ed_data == NULL) {
157 *error = DW_DLE_NO_ENTRY;
158 return (DW_DLV_NO_ENTRY);
160 *ret_data = ed->ed_data->d_buf;