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author | Sehong Na <sehong.na@samsung.com> | 2014-05-31 12:37:43 +0900 |
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committer | Sehong Na <sehong.na@samsung.com> | 2014-05-31 12:37:43 +0900 |
commit | 27433ba06963da3c5555ae0407aaab11e9d501be (patch) | |
tree | 3a1781e5b5431173c990d5603bb24b7ae41c17aa /libelf/gelf_getlib.c | |
download | elfutils-submit/tizen_2.3/20140531.071446.tar.gz elfutils-submit/tizen_2.3/20140531.071446.tar.bz2 elfutils-submit/tizen_2.3/20140531.071446.zip |
Initialize Tizen 2.3submit/tizen_2.3/20140531.0714462.3a_release
Diffstat (limited to 'libelf/gelf_getlib.c')
-rw-r--r-- | libelf/gelf_getlib.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/libelf/gelf_getlib.c b/libelf/gelf_getlib.c new file mode 100644 index 0000000..aa91a73 --- /dev/null +++ b/libelf/gelf_getlib.c @@ -0,0 +1,101 @@ +/* Get library from table at the given index. + Copyright (C) 2004 Red Hat, Inc. + This file is part of Red Hat elfutils. + Written by Ulrich Drepper <drepper@redhat.com>, 2004. + + Red Hat elfutils 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 of the License. + + Red Hat elfutils 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 Red Hat elfutils; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. + + In addition, as a special exception, Red Hat, Inc. gives You the + additional right to link the code of Red Hat elfutils with code licensed + under any Open Source Initiative certified open source license + (http://www.opensource.org/licenses/index.php) which requires the + distribution of source code with any binary distribution and to + distribute linked combinations of the two. Non-GPL Code permitted under + this exception must only link to the code of Red Hat elfutils through + those well defined interfaces identified in the file named EXCEPTION + found in the source code files (the "Approved Interfaces"). The files + of Non-GPL Code may instantiate templates or use macros or inline + functions from the Approved Interfaces without causing the resulting + work to be covered by the GNU General Public License. Only Red Hat, + Inc. may make changes or additions to the list of Approved Interfaces. + Red Hat's grant of this exception is conditioned upon your not adding + any new exceptions. If you wish to add a new Approved Interface or + exception, please contact Red Hat. You must obey the GNU General Public + License in all respects for all of the Red Hat elfutils code and other + code used in conjunction with Red Hat elfutils except the Non-GPL Code + covered by this exception. If you modify this file, you may extend this + exception to your version of the file, but you are not obligated to do + so. If you do not wish to provide this exception without modification, + you must delete this exception statement from your version and license + this file solely under the GPL without exception. + + Red Hat elfutils is an included package of the Open Invention Network. + An included package of the Open Invention Network is a package for which + Open Invention Network licensees cross-license their patents. No patent + license is granted, either expressly or impliedly, by designation as an + included package. Should you wish to participate in the Open Invention + Network licensing program, please visit www.openinventionnetwork.com + <http://www.openinventionnetwork.com>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <assert.h> +#include <gelf.h> +#include <string.h> + +#include "libelfP.h" + + +GElf_Lib * +gelf_getlib (data, ndx, dst) + Elf_Data *data; + int ndx; + GElf_Lib *dst; +{ + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_LIB)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + + rwlock_rdlock (data_scn->s->elf->lock); + + /* The on disk format of Elf32_Lib and Elf64_Lib is identical. So + we can simplify things significantly. */ + assert (sizeof (GElf_Lib) == sizeof (Elf32_Lib)); + assert (sizeof (GElf_Lib) == sizeof (Elf64_Lib)); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + GElf_Lib *result = NULL; + if (unlikely ((ndx + 1) * sizeof (GElf_Lib) > data->d_size)) + __libelf_seterrno (ELF_E_INVALID_INDEX); + else + { + *dst = ((GElf_Lib *) data->d_buf)[ndx]; + + result = dst; + } + + rwlock_unlock (data_scn->s->elf->lock); + + return result; +} |