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| -rw-r--r-- | ChangeLog | 2 | ||||
| -rw-r--r-- | sysdeps/ia64/atomicity.h | 48 |
2 files changed, 50 insertions, 0 deletions
@@ -1,5 +1,7 @@ 2001-04-06 Ulrich Drepper <drepper@redhat.com> + * sysdeps/ia64/atomicity.h: New file. Copied from libstdc++. + * sysdeps/i386/i486/atomicity.h: Clean up the asms. * sysdeps/generic/e_scalb.c: Don't use FE_INVALID unless it's diff --git a/sysdeps/ia64/atomicity.h b/sysdeps/ia64/atomicity.h new file mode 100644 index 0000000000..0bbf359cf6 --- /dev/null +++ b/sysdeps/ia64/atomicity.h @@ -0,0 +1,48 @@ +/* Low-level functions for atomic operations. IA-64 version. + Copyright (C) 2001 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> +#include <ia64intrin.h> + + +static inline uint32_t +__attribute__ ((unused)) +exchange_and_add (volatile uint32_t *mem, uint32_t val) +{ + return __sync_fetch_and_add (mem, val); +} + +static inline void +__attribute__ ((unused)) +atomic_add (volatile uint32_t *mem, int val) +{ + __sync_fetch_and_add (mem, val); +} + +static inline int +__attribute__ ((unused)) +compare_and_swap (volatile long int *p, long int oldval, long int newval) +{ + return __sync_bool_compare_and_swap (p, oldval, newval); +} + +#endif /* atomicity.h */ |