#ifndef __SYSDEP_LOCKS_H__
#define __SYSDEP_LOCKS_H__
#include <ia64intrin.h>
typedef size_t obj_addr_t;
inline static bool
compare_and_swap(volatile obj_addr_t *addr,
obj_addr_t old,
obj_addr_t new_val)
{
return __sync_bool_compare_and_swap (addr, old, new_val);
}
inline static void
release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
{
__asm__ __volatile__("" : : : "memory");
*(addr) = new_val;
}
inline static bool
compare_and_swap_release(volatile obj_addr_t *addr,
obj_addr_t old,
obj_addr_t new_val)
{
register unsigned long ar_ccv __asm__("ar.ccv") = old;
unsigned long out;
__asm__ __volatile__("cmpxchg8.rel %0=%1,%2,%4"
: "=r"(out), "=m"(*addr)
: "r"(new_val), "m"(*addr), "d"(ar_ccv) : "memory");
return (out == old);
}
#endif