diff options
Diffstat (limited to 'libelf/gelf_getphdr.c')
| -rw-r--r-- | libelf/gelf_getphdr.c | 66 |
1 files changed, 52 insertions, 14 deletions
diff --git a/libelf/gelf_getphdr.c b/libelf/gelf_getphdr.c index fd033e56..66cd143d 100644 --- a/libelf/gelf_getphdr.c +++ b/libelf/gelf_getphdr.c @@ -1,19 +1,52 @@ /* Return program header table entry. Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. + This file is part of Red Hat elfutils. Written by Ulrich Drepper <drepper@redhat.com>, 1998. - 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. */ + 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> @@ -21,6 +54,7 @@ #include <gelf.h> #include <string.h> +#include <stdbool.h> #include "libelfP.h" @@ -57,10 +91,12 @@ gelf_getphdr (elf, ndx, dst) if (phdr == NULL) { + rwlock_unlock (elf->lock); phdr = INTUSE(elf32_getphdr) (elf); if (phdr == NULL) /* The error number is already set. */ - goto out; + return NULL; + rwlock_rdlock (elf->lock); } /* Test whether the index is ok. */ @@ -93,10 +129,12 @@ gelf_getphdr (elf, ndx, dst) if (phdr == NULL) { + rwlock_unlock (elf->lock); phdr = INTUSE(elf64_getphdr) (elf); if (phdr == NULL) /* The error number is already set. */ - goto out; + return NULL; + rwlock_rdlock (elf->lock); } /* Test whether the index is ok. */ |