diff options
author | Ulrich Drepper <drepper@redhat.com> | 2005-07-26 05:00:05 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2005-07-26 05:00:05 +0000 |
commit | b08d5a8fb42f4586d756068065186b5af7e48dad (patch) | |
tree | 9f05f86be7877ed461b4dc05f53b29ea4fc0d2a1 /libelf/gelf_getverdef.c | |
download | elfutils-b08d5a8fb42f4586d756068065186b5af7e48dad.tar.gz |
Adjust for monotone.
Diffstat (limited to 'libelf/gelf_getverdef.c')
-rw-r--r-- | libelf/gelf_getverdef.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/libelf/gelf_getverdef.c b/libelf/gelf_getverdef.c new file mode 100644 index 00000000..b9492ef7 --- /dev/null +++ b/libelf/gelf_getverdef.c @@ -0,0 +1,69 @@ +/* Get symbol version definition information at the given offset. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper <drepper@redhat.com>, 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 <config.h> +#endif + +#include <assert.h> +#include <gelf.h> +#include <string.h> + +#include "libelfP.h" + + +GElf_Verdef * +gelf_getverdef (data, offset, dst) + Elf_Data *data; + int offset; + GElf_Verdef *dst; +{ + GElf_Verdef *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_Verdef) == sizeof (Elf32_Verdef)); + assert (sizeof (GElf_Verdef) == sizeof (Elf64_Verdef)); + + 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_Verdef) > data->d_size) + || unlikely (offset % __alignof__ (GElf_Verdef) != 0)) + { + __libelf_seterrno (ELF_E_OFFSET_RANGE); + result = NULL; + } + else + result = (GElf_Verdef *) memcpy (dst, (char *) data->d_buf + offset, + sizeof (GElf_Verdef)); + + rwlock_unlock (((Elf_Data_Scn *) data)->s->elf->lock); + + return result; +} |