From b08d5a8fb42f4586d756068065186b5af7e48dad Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 26 Jul 2005 05:00:05 +0000 Subject: Adjust for monotone. --- libelf/gelf_getverdaux.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 libelf/gelf_getverdaux.c (limited to 'libelf/gelf_getverdaux.c') diff --git a/libelf/gelf_getverdaux.c b/libelf/gelf_getverdaux.c new file mode 100644 index 00000000..0a14b121 --- /dev/null +++ b/libelf/gelf_getverdaux.c @@ -0,0 +1,70 @@ +/* Get additional symbol version definition information at the given offset. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Verdaux * +gelf_getverdaux (data, offset, dst) + Elf_Data *data; + int offset; + GElf_Verdaux *dst; +{ + GElf_Verdaux *result; + + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_VDEF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* It's easy to handle this type. It has the same size for 32 and + 64 bit objects. */ + assert (sizeof (GElf_Verdaux) == sizeof (Elf32_Verdaux)); + assert (sizeof (GElf_Verdaux) == sizeof (Elf64_Verdaux)); + + rwlock_rdlock (((Elf_Data_Scn *) data)->s->elf->lock); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely (offset < 0) + || unlikely (offset + sizeof (GElf_Verdaux) > data->d_size) + || unlikely (offset % __alignof__ (GElf_Verdaux) != 0)) + { + __libelf_seterrno (ELF_E_OFFSET_RANGE); + result = NULL; + } + else + result = (GElf_Verdaux *) memcpy (dst, (char *) data->d_buf + offset, + sizeof (GElf_Verdaux)); + + + rwlock_unlock (((Elf_Data_Scn *) data)->s->elf->lock); + + return result; +} -- cgit v1.2.1