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-rw-r--r--sysdeps/generic/atomicity.h9
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;