diff options
| -rw-r--r-- | libc/sysdeps/linux/xtensa/bits/atomic.h | 66 |
1 files changed, 64 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/xtensa/bits/atomic.h b/libc/sysdeps/linux/xtensa/bits/atomic.h index efec365f1..49163a20d 100644 --- a/libc/sysdeps/linux/xtensa/bits/atomic.h +++ b/libc/sysdeps/linux/xtensa/bits/atomic.h @@ -19,8 +19,37 @@ #ifndef _BITS_ATOMIC_H #define _BITS_ATOMIC_H 1 -/* Xtensa has only a 32-bit form of a store-conditional instruction, - so just stub out the rest. */ +#include <inttypes.h> + +typedef int32_t atomic32_t; +typedef uint32_t uatomic32_t; +typedef int_fast32_t atomic_fast32_t; +typedef uint_fast32_t uatomic_fast32_t; + +typedef int64_t atomic64_t; +typedef uint64_t uatomic64_t; +typedef int_fast64_t atomic_fast64_t; +typedef uint_fast64_t uatomic_fast64_t; + +typedef intptr_t atomicptr_t; +typedef uintptr_t uatomicptr_t; +typedef intmax_t atomic_max_t; +typedef uintmax_t uatomic_max_t; + + +/* Xtensa has only a 32-bit form of a store-conditional instruction. */ + +#define __arch_compare_and_exchange_bool_8_acq(mem, newval, oldval) \ + (abort (), 0) + +#define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \ + (abort (), 0) + +#define __arch_compare_and_exchange_bool_8_rel(mem, newval, oldval) \ + (abort (), 0) + +#define __arch_compare_and_exchange_bool_16_rel(mem, newval, oldval) \ + (abort (), 0) /* Atomically store NEWVAL in *MEM if *MEM is equal to OLDVAL. Return the old *MEM value. */ @@ -167,5 +196,38 @@ __arch_atomic_decrement_if_positive_32(mem); \ }) + +# define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \ + (abort (), 0) + +# define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \ + (abort (), (__typeof (*mem)) 0) + +# define __arch_compare_and_exchange_bool_64_rel(mem, newval, oldval) \ + (abort (), 0) + +# define __arch_compare_and_exchange_val_64_rel(mem, newval, oldval) \ + (abort (), (__typeof (*mem)) 0) + +# define __arch_atomic_exchange_64_acq(mem, value) \ + ({ abort (); (*mem) = (value); }) + +# define __arch_atomic_exchange_64_rel(mem, value) \ + ({ abort (); (*mem) = (value); }) + +# define __arch_atomic_exchange_and_add_64(mem, value) \ + ({ abort (); (*mem) = (value); }) + +# define __arch_atomic_increment_val_64(mem) \ + ({ abort (); (*mem)++; }) + +# define __arch_atomic_decrement_val_64(mem) \ + ({ abort (); (*mem)--; }) + +# define __arch_atomic_decrement_if_positive_64(mem) \ + ({ abort (); (*mem)--; }) + + + #endif /* _BITS_ATOMIC_H */ |