musl/arch/s390x/atomic_arch.h

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2016-11-12 03:52:05 +00:00
#define a_cas a_cas
static inline int a_cas(volatile int *p, int t, int s)
{
__asm__ __volatile__ (
"cs %0, %2, %1"
: "+d"(t), "+Q"(*p) : "d"(s) : "memory", "cc");
return t;
}
#define a_cas_p a_cas_p
static inline void *a_cas_p(volatile void *p, void *t, void *s)
{
__asm__ __volatile__ (
"csg %0, %2, %1"
: "+d"(t), "+Q"(*(void *volatile *)p) : "d"(s)
: "memory", "cc");
return t;
}
#define a_barrier a_barrier
static inline void a_barrier()
{
__asm__ __volatile__ ("bcr 15,0" : : : "memory");
}
#define a_crash a_crash
static inline void a_crash()
{
__asm__ __volatile__ (".insn e,0");
}