* System definitions.
*/
+#include <urcu/config.h>
#include <urcu/compiler.h>
#include <urcu/arch.h>
+#ifdef CONFIG_RCU_USE_ATOMIC_BUILTINS
+
+#define CMM_LOAD_SHARED(x) \
+ __atomic_load_n(cmm_cast_volatile(&(x)), __ATOMIC_RELAXED)
+
+#define _CMM_LOAD_SHARED(x) CMM_LOAD_SHARED(x)
+
+#define CMM_STORE_SHARED(x, v) \
+ __extension__ \
+ ({ \
+ __typeof__(v) _v = (v); \
+ __atomic_store_n(cmm_cast_volatile(&(x)), _v, \
+ __ATOMIC_RELAXED); \
+ _v; \
+ })
+
+#define _CMM_STORE_SHARED(x, v) CMM_STORE_SHARED(x, v)
+
+#else
/*
* Identify a shared load. A cmm_smp_rmc() or cmm_smp_mc() should come
* before the load.
_v = _v; /* Work around clang "unused result" */ \
})
+#endif /* CONFIG_RCU_USE_ATOMIC_BUILTINS */
+
#endif /* _URCU_SYSTEM_H */