Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | /* Return section header. |
Mark Wielaard | 1ccdfb6 | 2015-09-22 22:27:01 +0200 | [diff] [blame^] | 2 | Copyright (C) 1998, 1999, 2000, 2002, 2015 Red Hat, Inc. |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 3 | This file is part of elfutils. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 4 | Written by Ulrich Drepper <drepper@redhat.com>, 1998. |
| 5 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 6 | This file is free software; you can redistribute it and/or modify |
| 7 | it under the terms of either |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 8 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 9 | * the GNU Lesser General Public License as published by the Free |
| 10 | Software Foundation; either version 3 of the License, or (at |
| 11 | your option) any later version |
| 12 | |
| 13 | or |
| 14 | |
| 15 | * the GNU General Public License as published by the Free |
| 16 | Software Foundation; either version 2 of the License, or (at |
| 17 | your option) any later version |
| 18 | |
| 19 | or both in parallel, as here. |
| 20 | |
| 21 | elfutils is distributed in the hope that it will be useful, but |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [diff] [blame] | 22 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 24 | General Public License for more details. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 25 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 26 | You should have received copies of the GNU General Public License and |
| 27 | the GNU Lesser General Public License along with this program. If |
| 28 | not, see <http://www.gnu.org/licenses/>. */ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 29 | |
| 30 | #ifdef HAVE_CONFIG_H |
| 31 | # include <config.h> |
| 32 | #endif |
| 33 | |
| 34 | #include <gelf.h> |
| 35 | #include <string.h> |
| 36 | |
| 37 | #include "libelfP.h" |
| 38 | |
| 39 | |
| 40 | GElf_Shdr * |
Mark Wielaard | 1ccdfb6 | 2015-09-22 22:27:01 +0200 | [diff] [blame^] | 41 | gelf_getshdr (Elf_Scn *scn, GElf_Shdr *dst) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 42 | { |
| 43 | GElf_Shdr *result = NULL; |
| 44 | |
| 45 | if (scn == NULL) |
| 46 | return NULL; |
| 47 | |
| 48 | if (dst == NULL) |
| 49 | { |
| 50 | __libelf_seterrno (ELF_E_INVALID_OPERAND); |
| 51 | return NULL; |
| 52 | } |
| 53 | |
Roland McGrath | b4d6f0f | 2008-08-25 22:55:17 +0000 | [diff] [blame] | 54 | rwlock_rdlock (scn->elf->lock); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 55 | |
| 56 | if (scn->elf->class == ELFCLASS32) |
| 57 | { |
| 58 | /* Copy the elements one-by-one. */ |
Ulrich Drepper | d56e232 | 2008-08-16 03:09:13 +0000 | [diff] [blame] | 59 | Elf32_Shdr *shdr |
Roland McGrath | b4d6f0f | 2008-08-25 22:55:17 +0000 | [diff] [blame] | 60 | = scn->shdr.e32 ?: __elf32_getshdr_rdlock (scn); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 61 | |
| 62 | if (shdr == NULL) |
| 63 | { |
| 64 | __libelf_seterrno (ELF_E_INVALID_OPERAND); |
| 65 | goto out; |
| 66 | } |
| 67 | |
| 68 | #define COPY(name) \ |
| 69 | dst->name = shdr->name |
| 70 | COPY (sh_name); |
| 71 | COPY (sh_type); |
| 72 | COPY (sh_flags); |
| 73 | COPY (sh_addr); |
| 74 | COPY (sh_offset); |
| 75 | COPY (sh_size); |
| 76 | COPY (sh_link); |
| 77 | COPY (sh_info); |
| 78 | COPY (sh_addralign); |
| 79 | COPY (sh_entsize); |
| 80 | |
| 81 | result = dst; |
| 82 | } |
| 83 | else |
| 84 | { |
Ulrich Drepper | d56e232 | 2008-08-16 03:09:13 +0000 | [diff] [blame] | 85 | Elf64_Shdr *shdr |
Roland McGrath | b4d6f0f | 2008-08-25 22:55:17 +0000 | [diff] [blame] | 86 | = scn->shdr.e64 ?: __elf64_getshdr_rdlock (scn); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 87 | |
| 88 | if (shdr == NULL) |
| 89 | { |
| 90 | __libelf_seterrno (ELF_E_INVALID_OPERAND); |
| 91 | goto out; |
| 92 | } |
| 93 | |
| 94 | /* We only have to copy the data. */ |
| 95 | result = memcpy (dst, shdr, sizeof (GElf_Shdr)); |
| 96 | } |
| 97 | |
| 98 | out: |
Roland McGrath | b4d6f0f | 2008-08-25 22:55:17 +0000 | [diff] [blame] | 99 | rwlock_unlock (scn->elf->lock); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 100 | |
| 101 | return result; |
| 102 | } |
| 103 | INTDEF(gelf_getshdr) |