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+/* Low-level functions for atomic operations. Stub version.
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _ATOMICITY_H
+#define _ATOMICITY_H 1
+
+#include <inttypes.h>
+
+
+static inline int
+__attribute__ ((unused))
+exchange_and_add (uint32_t *mem, int val)
+{
+ int result = *mem;
+ *mem += val;
+ return result;
+}
+
+static inline void
+__attribute__ ((unused))
+atomic_add (uint32_t *mem, int val)
+{
+ *mem += val;
+}
+
+static inline int
+__attribute__ ((unused))
+compare_and_swap (long int *p, long int oldval, long int newval)
+{
+ if (*p != oldval)
+ return 0;
+
+ *p = newval;
+ return 1;
+}
+
+#endif /* atomicity.h */