Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | /* Return section header. |
| 2 | Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. |
| 3 | Written by Ulrich Drepper <drepper@redhat.com>, 1998. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation, version 2. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, write to the Free Software Foundation, |
| 16 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 17 | |
| 18 | #ifdef HAVE_CONFIG_H |
| 19 | # include <config.h> |
| 20 | #endif |
| 21 | |
| 22 | #include <gelf.h> |
| 23 | #include <string.h> |
| 24 | |
| 25 | #include "libelfP.h" |
| 26 | |
| 27 | |
| 28 | GElf_Shdr * |
| 29 | gelf_getshdr (scn, dst) |
| 30 | Elf_Scn *scn; |
| 31 | GElf_Shdr *dst; |
| 32 | { |
| 33 | GElf_Shdr *result = NULL; |
| 34 | |
| 35 | if (scn == NULL) |
| 36 | return NULL; |
| 37 | |
| 38 | if (dst == NULL) |
| 39 | { |
| 40 | __libelf_seterrno (ELF_E_INVALID_OPERAND); |
| 41 | return NULL; |
| 42 | } |
| 43 | |
| 44 | rwlock_rdlock (scn->elf->lock); |
| 45 | |
| 46 | if (scn->elf->class == ELFCLASS32) |
| 47 | { |
| 48 | /* Copy the elements one-by-one. */ |
| 49 | Elf32_Shdr *shdr = scn->shdr.e32 ?: INTUSE(elf32_getshdr) (scn); |
| 50 | |
| 51 | if (shdr == NULL) |
| 52 | { |
| 53 | __libelf_seterrno (ELF_E_INVALID_OPERAND); |
| 54 | goto out; |
| 55 | } |
| 56 | |
| 57 | #define COPY(name) \ |
| 58 | dst->name = shdr->name |
| 59 | COPY (sh_name); |
| 60 | COPY (sh_type); |
| 61 | COPY (sh_flags); |
| 62 | COPY (sh_addr); |
| 63 | COPY (sh_offset); |
| 64 | COPY (sh_size); |
| 65 | COPY (sh_link); |
| 66 | COPY (sh_info); |
| 67 | COPY (sh_addralign); |
| 68 | COPY (sh_entsize); |
| 69 | |
| 70 | result = dst; |
| 71 | } |
| 72 | else |
| 73 | { |
| 74 | Elf64_Shdr *shdr = scn->shdr.e64 ?: INTUSE(elf64_getshdr) (scn); |
| 75 | |
| 76 | if (shdr == NULL) |
| 77 | { |
| 78 | __libelf_seterrno (ELF_E_INVALID_OPERAND); |
| 79 | goto out; |
| 80 | } |
| 81 | |
| 82 | /* We only have to copy the data. */ |
| 83 | result = memcpy (dst, shdr, sizeof (GElf_Shdr)); |
| 84 | } |
| 85 | |
| 86 | out: |
| 87 | rwlock_unlock (scn->elf->lock); |
| 88 | |
| 89 | return result; |
| 90 | } |
| 91 | INTDEF(gelf_getshdr) |