diff options
Diffstat (limited to 'libc-top-half/musl/arch/s390x/atomic_arch.h')
-rw-r--r-- | libc-top-half/musl/arch/s390x/atomic_arch.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/libc-top-half/musl/arch/s390x/atomic_arch.h b/libc-top-half/musl/arch/s390x/atomic_arch.h new file mode 100644 index 0000000..9b0e1df --- /dev/null +++ b/libc-top-half/musl/arch/s390x/atomic_arch.h @@ -0,0 +1,30 @@ +#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"); +} |