+
−/* Copyright (C) 2012-2020 Free Software Foundation, Inc.
+
−   Contributed by Richard Henderson <rth@redhat.com>.
+
−
+
−   This file is part of the GNU Atomic Library (libatomic).
+
−
+
−   Libatomic 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; either version 3 of the License, or
+
−   (at your option) any later version.
+
−
+
−   Libatomic 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.
+
−
+
−   Under Section 7 of GPL version 3, you are granted additional
+
−   permissions described in the GCC Runtime Library Exception, version
+
−   3.1, as published by the Free Software Foundation.
+
−
+
−   You should have received a copy of the GNU General Public License and
+
−   a copy of the GCC Runtime Library Exception along with this program;
+
−   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+
−   <http://www.gnu.org/licenses/>.  */
+
−
+
−#include "libatomic_i.h"
+
−
+
−
+
−/* If we use the builtin we'll get __sync_synchronize, not __kernel_dmb.  */
+
−#if !DONE && N <= WORDSIZE && !defined(HAVE_DMB) && !defined(HAVE_DMB_MCR)
+
−UTYPE
+
−SIZE(libat_load) (UTYPE *mptr, int smodel)
+
−{
+
−  UTYPE ret;
+
−
+
−  if (maybe_specialcase_relaxed(smodel))
+
−    ret = *mptr;
+
−  else
+
−    {
+
−      __kernel_dmb ();
+
−      ret = *mptr;
+
−      __kernel_dmb ();
+
−    }
+
−  return ret;
+
−}
+
−
+
−#define DONE 1
+
−#endif /* !HAVE_DMB */
+
−
+
−#include "../../../load_n.c"