diff options
Diffstat (limited to 'gcc-4.8/libatomic/config/linux/arm/store_n.c')
-rw-r--r-- | gcc-4.8/libatomic/config/linux/arm/store_n.c | 46 |
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 new file mode 100644 index 000000000..c440f8348 --- /dev/null +++ b/gcc-4.8/libatomic/config/linux/arm/store_n.c @@ -0,0 +1,46 @@ +/* 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" |