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- /* Copyright (C) 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
- #include <stdint.h>
- #include <ia64intrin.h>
- typedef int8_t atomic8_t;
- typedef uint8_t uatomic8_t;
- typedef int_fast8_t atomic_fast8_t;
- typedef uint_fast8_t uatomic_fast8_t;
- typedef int16_t atomic16_t;
- typedef uint16_t uatomic16_t;
- typedef int_fast16_t atomic_fast16_t;
- typedef uint_fast16_t uatomic_fast16_t;
- 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;
- #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_32_acq(mem, newval, oldval) \
- (!__sync_bool_compare_and_swap ((mem), (int) (long) (oldval), \
- (int) (long) (newval)))
- #define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
- (!__sync_bool_compare_and_swap ((mem), (long) (oldval), \
- (long) (newval)))
- #define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
- (abort (), (__typeof (*mem)) 0)
- #define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
- (abort (), (__typeof (*mem)) 0)
- #define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
- __sync_val_compare_and_swap ((mem), (int) (long) (oldval), \
- (int) (long) (newval))
- #define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
- __sync_val_compare_and_swap ((mem), (long) (oldval), (long) (newval))
- /* Atomically store newval and return the old value. */
- #define atomic_exchange_acq(mem, value) \
- __sync_lock_test_and_set (mem, value)
- #define atomic_exchange_rel(mem, value) \
- (__sync_synchronize (), __sync_lock_test_and_set (mem, value))
- #define atomic_exchange_and_add(mem, value) \
- ({ __typeof (*mem) __result; \
- __result = __sync_fetch_and_add ((mem), (int) (value)); \
- __result; })
- #define atomic_decrement_if_positive(mem) \
- ({ __typeof (*mem) __oldval, __val; \
- __typeof (mem) __memp = (mem); \
- \
- __val = (*__memp); \
- do \
- { \
- __oldval = __val; \
- if (unlikely (__val <= 0)) \
- break; \
- __val = atomic_compare_and_exchange_val_acq (__memp, __oldval - 1, \
- __oldval); \
- } \
- while (unlikely (__val != __oldval)); \
- __oldval; })
- #define atomic_bit_test_set(mem, bit) \
- ({ __typeof (*mem) __oldval, __val; \
- __typeof (mem) __memp = (mem); \
- __typeof (*mem) __mask = ((__typeof (*mem)) 1 << (bit)); \
- \
- __val = (*__memp); \
- do \
- { \
- __oldval = __val; \
- __val = atomic_compare_and_exchange_val_acq (__memp, \
- __oldval | __mask, \
- __oldval); \
- } \
- while (unlikely (__val != __oldval)); \
- __oldval & __mask; })
- #define atomic_full_barrier() __sync_synchronize ()
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