Retro68/gcc/libatomic/config/powerpc/host-config.h
2014-09-21 19:33:12 +02:00

25 lines
642 B
C

/* Avoiding the synchronizations are a good thing. */
#define WANT_SPECIALCASE_RELAXED
#define WANT_SPECIALCASE_ACQREL
/* Glibc, at least, uses lwsync (aka acq_rel) in its pthread mutex
implementation. If the user is asking for seq_cst (aka hwsync),
this is insufficient. */
static inline void __attribute__((always_inline, artificial))
pre_seq_barrier(int model)
{
if (model == __ATOMIC_SEQ_CST)
__atomic_thread_fence (__ATOMIC_SEQ_CST);
}
static inline void __attribute__((always_inline, artificial))
post_seq_barrier(int model)
{
pre_seq_barrier(model);
}
#define pre_post_seq_barrier 1
#include_next <host-config.h>