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-rw-r--r--gcc-4.8/libatomic/config/linux/arm/store_n.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc-4.8/libatomic/config/linux/arm/store_n.c b/gcc-4.8/libatomic/config/linux/arm/store_n.c
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+++ b/gcc-4.8/libatomic/config/linux/arm/store_n.c
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+/* Copyright (C) 2012-2013 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)
+void
+SIZE(libat_store) (UTYPE *mptr, UTYPE val, int smodel)
+{
+ if (maybe_specialcase_relaxed(smodel))
+ *mptr = val;
+ else
+ {
+ __kernel_dmb ();
+ *mptr = val;
+ __kernel_dmb ();
+ }
+}
+
+#define DONE 1
+#endif /* !HAVE_DMB */
+
+#include "../../../store_n.c"