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[PATCH 4/5] sysdeps/aarch64/bits/atomic.h: Switch to generic implementation
- From: Will Newton <will dot newton at linaro dot org>
- To: libc-alpha at sourceware dot org
- Date: Fri, 17 Oct 2014 16:31:21 +0100
- Subject: [PATCH 4/5] sysdeps/aarch64/bits/atomic.h: Switch to generic implementation
- Authentication-results: sourceware.org; auth=none
- References: <1413559882-959-1-git-send-email-will dot newton at linaro dot org>
Switch the AArch64 port to using the generic GCC intrinsic based
atomic implementation.
ChangeLog:
2014-10-15 Will Newton <will.newton@linaro.org>
* sysdeps/aarch64/bits/atomic.h
(__ARCH_ATOMIC_64_SUPPORTED): Define to 1.
Include sysdeps/generic/atomic_types.h.
Include sysdeps/generic/atomic.h.
Remove existing atomic defines and tyepdefs.
---
sysdeps/aarch64/bits/atomic.h | 151 +-----------------------------------------
1 file changed, 3 insertions(+), 148 deletions(-)
diff --git a/sysdeps/aarch64/bits/atomic.h b/sysdeps/aarch64/bits/atomic.h
index 456e2ec..a44f543 100644
--- a/sysdeps/aarch64/bits/atomic.h
+++ b/sysdeps/aarch64/bits/atomic.h
@@ -19,153 +19,8 @@
#ifndef _AARCH64_BITS_ATOMIC_H
#define _AARCH64_BITS_ATOMIC_H 1
-#include <stdint.h>
-
-typedef int8_t atomic8_t;
-typedef int16_t atomic16_t;
-typedef int32_t atomic32_t;
-typedef int64_t atomic64_t;
-
-typedef uint8_t uatomic8_t;
-typedef uint16_t uatomic16_t;
-typedef uint32_t uatomic32_t;
-typedef uint64_t uatomic64_t;
-
-typedef intptr_t atomicptr_t;
-typedef uintptr_t uatomicptr_t;
-typedef intmax_t atomic_max_t;
-typedef uintmax_t uatomic_max_t;
-
-
-/* Compare and exchange.
- For all "bool" routines, we return FALSE if exchange succesful. */
-
-# define __arch_compare_and_exchange_bool_8_int(mem, newval, oldval, model) \
- ({ \
- typeof (*mem) __oldval = (oldval); \
- !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
- model, __ATOMIC_RELAXED); \
- })
-
-# define __arch_compare_and_exchange_bool_16_int(mem, newval, oldval, model) \
- ({ \
- typeof (*mem) __oldval = (oldval); \
- !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
- model, __ATOMIC_RELAXED); \
- })
-
-# define __arch_compare_and_exchange_bool_32_int(mem, newval, oldval, model) \
- ({ \
- typeof (*mem) __oldval = (oldval); \
- !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
- model, __ATOMIC_RELAXED); \
- })
-
-# define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval, model) \
- ({ \
- typeof (*mem) __oldval = (oldval); \
- !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
- model, __ATOMIC_RELAXED); \
- })
-
-# define __arch_compare_and_exchange_val_8_int(mem, newval, oldval, model) \
- ({ \
- typeof (*mem) __oldval = (oldval); \
- __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
- model, __ATOMIC_RELAXED); \
- __oldval; \
- })
-
-# define __arch_compare_and_exchange_val_16_int(mem, newval, oldval, model) \
- ({ \
- typeof (*mem) __oldval = (oldval); \
- __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
- model, __ATOMIC_RELAXED); \
- __oldval; \
- })
-
-# define __arch_compare_and_exchange_val_32_int(mem, newval, oldval, model) \
- ({ \
- typeof (*mem) __oldval = (oldval); \
- __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
- model, __ATOMIC_RELAXED); \
- __oldval; \
- })
-
-# define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
- ({ \
- typeof (*mem) __oldval = (oldval); \
- __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
- model, __ATOMIC_RELAXED); \
- __oldval; \
- })
-
-
-/* Compare and exchange with "acquire" semantics, ie barrier after. */
-
-# define atomic_compare_and_exchange_bool_acq(mem, new, old) \
- __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \
- mem, new, old, __ATOMIC_ACQUIRE)
-
-# define atomic_compare_and_exchange_val_acq(mem, new, old) \
- __atomic_val_bysize (__arch_compare_and_exchange_val, int, \
- mem, new, old, __ATOMIC_ACQUIRE)
-
-/* Compare and exchange with "release" semantics, ie barrier before. */
-
-# define atomic_compare_and_exchange_bool_rel(mem, new, old) \
- __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \
- mem, new, old, __ATOMIC_RELEASE)
-
-# define atomic_compare_and_exchange_val_rel(mem, new, old) \
- __atomic_val_bysize (__arch_compare_and_exchange_val, int, \
- mem, new, old, __ATOMIC_RELEASE)
-
-
-/* Atomic exchange (without compare). */
-
-# define __arch_exchange_8_int(mem, newval, model) \
- __atomic_exchange_n (mem, newval, model)
-
-# define __arch_exchange_16_int(mem, newval, model) \
- __atomic_exchange_n (mem, newval, model)
-
-# define __arch_exchange_32_int(mem, newval, model) \
- __atomic_exchange_n (mem, newval, model)
-
-# define __arch_exchange_64_int(mem, newval, model) \
- __atomic_exchange_n (mem, newval, model)
-
-# define atomic_exchange_acq(mem, value) \
- __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_ACQUIRE)
-
-# define atomic_exchange_rel(mem, value) \
- __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_RELEASE)
-
-
-/* Atomically add value and return the previous (unincremented) value. */
-
-# define __arch_exchange_and_add_8_int(mem, value, model) \
- __atomic_fetch_add (mem, value, model)
-
-# define __arch_exchange_and_add_16_int(mem, value, model) \
- __atomic_fetch_add (mem, value, model)
-
-# define __arch_exchange_and_add_32_int(mem, value, model) \
- __atomic_fetch_add (mem, value, model)
-
-# define __arch_exchange_and_add_64_int(mem, value, model) \
- __atomic_fetch_add (mem, value, model)
-
-# define atomic_exchange_and_add_acq(mem, value) \
- __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, \
- __ATOMIC_ACQUIRE)
-
-# define atomic_exchange_and_add_rel(mem, value) \
- __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, \
- __ATOMIC_RELEASE)
-
-/* Barrier macro. */
-#define atomic_full_barrier() __sync_synchronize()
+# define __ARCH_ATOMIC_64_SUPPORTED 1
+# include <sysdeps/generic/atomic_types.h>
+# include <sysdeps/generic/atomic.h>
#endif
--
1.9.3