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authorElliott Hughes <enh@google.com>2015-02-17 20:56:04 +0000
committerGerrit Code Review <noreply-gerritcodereview@google.com>2015-02-17 20:56:04 +0000
commitb48bfdc826ebdd316d5d8a4ff8f213391f1c710b (patch)
tree961dfef28571e02a7d969fbba9bb51991086476b /src/libelf/gelf_update_move.c
parent5cb12756f3876faa52b0d4491745fc4c7adbab00 (diff)
parent41f677100e15f315f638774fbd055e497fc90069 (diff)
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Merge "Export elfutils headers and lose the version number from the path."
Diffstat (limited to 'src/libelf/gelf_update_move.c')
-rw-r--r--src/libelf/gelf_update_move.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/src/libelf/gelf_update_move.c b/src/libelf/gelf_update_move.c
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+++ b/src/libelf/gelf_update_move.c
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+/* Update move structure at the given index.
+ Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
+ This file is part of Red Hat elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2000.
+
+ 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 <stdlib.h>
+
+#include "libelfP.h"
+
+
+int
+gelf_update_move (data, ndx, src)
+ Elf_Data *data;
+ int ndx;
+ GElf_Move *src;
+{
+ Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data;
+
+ if (data == NULL)
+ return 0;
+
+ /* The types for 32 and 64 bit are the same. Lucky us. */
+ assert (sizeof (GElf_Move) == sizeof (Elf32_Move));
+ assert (sizeof (GElf_Move) == sizeof (Elf64_Move));
+
+ /* Check whether we have to resize the data buffer. */
+ if (unlikely (ndx < 0)
+ || unlikely ((ndx + 1) * sizeof (GElf_Move) > data_scn->d.d_size))
+ {
+ __libelf_seterrno (ELF_E_INVALID_INDEX);
+ return 0;
+ }
+
+ if (unlikely (data_scn->d.d_type != ELF_T_MOVE))
+ {
+ /* The type of the data better should match. */
+ __libelf_seterrno (ELF_E_DATA_MISMATCH);
+ return 0;
+ }
+
+ rwlock_wrlock (data_scn->s->elf->lock);
+
+ ((GElf_Move *) data_scn->d.d_buf)[ndx] = *src;
+
+ /* Mark the section as modified. */
+ data_scn->s->flags |= ELF_F_DIRTY;
+
+ rwlock_unlock (data_scn->s->elf->lock);
+
+ return 1;
+}