1 /* Get additional symbol information from symbol table at the given index. 2 Copyright (C) 2000, 2001, 2002 Red Hat, Inc. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 2000. 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 <assert.h> 23 #include <gelf.h> 24 #include <string.h> 25 26 #include "libelfP.h" 27 28 29 GElf_Syminfo * 30 gelf_getsyminfo (data, ndx, dst) 31 Elf_Data *data; 32 int ndx; 33 GElf_Syminfo *dst; 34 { 35 GElf_Syminfo *result = NULL; 36 37 if (data == NULL) 38 return NULL; 39 40 if (unlikely (data->d_type != ELF_T_SYMINFO)) 41 { 42 __libelf_seterrno (ELF_E_INVALID_HANDLE); 43 return NULL; 44 } 45 46 /* The types for 32 and 64 bit are the same. Lucky us. */ 47 assert (sizeof (GElf_Syminfo) == sizeof (Elf32_Syminfo)); 48 assert (sizeof (GElf_Syminfo) == sizeof (Elf64_Syminfo)); 49 50 rwlock_rdlock (((Elf_Data_Scn *) data)->s->elf->lock); 51 52 /* The data is already in the correct form. Just make sure the 53 index is OK. */ 54 if (unlikely ((ndx + 1) * sizeof (GElf_Syminfo) > data->d_size)) 55 { 56 __libelf_seterrno (ELF_E_INVALID_INDEX); 57 goto out; 58 } 59 60 *dst = ((GElf_Syminfo *) data->d_buf)[ndx]; 61 62 result = dst; 63 64 out: 65 rwlock_unlock (((Elf_Data_Scn *) data)->s->elf->lock); 66 67 return result; 68 } 69
