diff options
Diffstat (limited to 'sysdeps/generic/atomicity.h')
| -rw-r--r-- | sysdeps/generic/atomicity.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sysdeps/generic/atomicity.h b/sysdeps/generic/atomicity.h index 887ce73..28107de 100644 --- a/sysdeps/generic/atomicity.h +++ b/sysdeps/generic/atomicity.h @@ -1,5 +1,5 @@ /* Low-level functions for atomic operations. Stub version. - Copyright (C) 1997 Free Software Foundation, Inc. + Copyright (C) 1997,2001 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 @@ -22,10 +22,11 @@ #include <inttypes.h> +#warning stub atomicity functions are not atomic static inline int __attribute__ ((unused)) -exchange_and_add (uint32_t *mem, int val) +exchange_and_add (volatile uint32_t *mem, int val) { int result = *mem; *mem += val; @@ -34,14 +35,14 @@ exchange_and_add (uint32_t *mem, int val) static inline void __attribute__ ((unused)) -atomic_add (uint32_t *mem, int val) +atomic_add (volatile uint32_t *mem, int val) { *mem += val; } static inline int __attribute__ ((unused)) -compare_and_swap (long int *p, long int oldval, long int newval) +compare_and_swap (volatile long int *p, long int oldval, long int newval) { if (*p != oldval) return 0; |