/third_party/gofrontend/libgo/go/sync/atomic/atomic.c
C | 353 lines | 276 code | 72 blank | 5 comment | 12 complexity | d84813f4138c1c250bc493aaa621a176 MD5 | raw file
Possible License(s): BSD-3-Clause, MIT
- /* atomic.c -- implement atomic routines for Go.
- Copyright 2011 The Go Authors. All rights reserved.
- Use of this source code is governed by a BSD-style
- license that can be found in the LICENSE file. */
- #include <stdint.h>
- #include "runtime.h"
- int32_t SwapInt32 (int32_t *, int32_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.SwapInt32")
- __attribute__ ((no_split_stack));
- int32_t
- SwapInt32 (int32_t *addr, int32_t new)
- {
- return __atomic_exchange_n (addr, new, __ATOMIC_SEQ_CST);
- }
- int64_t SwapInt64 (int64_t *, int64_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.SwapInt64")
- __attribute__ ((no_split_stack));
- int64_t
- SwapInt64 (int64_t *addr, int64_t new)
- {
- return __atomic_exchange_n (addr, new, __ATOMIC_SEQ_CST);
- }
- uint32_t SwapUint32 (uint32_t *, uint32_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.SwapUint32")
- __attribute__ ((no_split_stack));
- uint32_t
- SwapUint32 (uint32_t *addr, uint32_t new)
- {
- return __atomic_exchange_n (addr, new, __ATOMIC_SEQ_CST);
- }
- uint64_t SwapUint64 (uint64_t *, uint64_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.SwapUint64")
- __attribute__ ((no_split_stack));
- uint64_t
- SwapUint64 (uint64_t *addr, uint64_t new)
- {
- return __atomic_exchange_n (addr, new, __ATOMIC_SEQ_CST);
- }
- uintptr_t SwapUintptr (uintptr_t *, uintptr_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.SwapUintptr")
- __attribute__ ((no_split_stack));
- uintptr_t
- SwapUintptr (uintptr_t *addr, uintptr_t new)
- {
- return __atomic_exchange_n (addr, new, __ATOMIC_SEQ_CST);
- }
- void *SwapPointer (void **, void *)
- __asm__ (GOSYM_PREFIX "sync_atomic.SwapPointer")
- __attribute__ ((no_split_stack));
- void *
- SwapPointer (void **addr, void *new)
- {
- return __atomic_exchange_n (addr, new, __ATOMIC_SEQ_CST);
- }
- _Bool CompareAndSwapInt32 (int32_t *, int32_t, int32_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.CompareAndSwapInt32")
- __attribute__ ((no_split_stack));
- _Bool
- CompareAndSwapInt32 (int32_t *val, int32_t old, int32_t new)
- {
- return __sync_bool_compare_and_swap (val, old, new);
- }
- _Bool CompareAndSwapInt64 (int64_t *, int64_t, int64_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.CompareAndSwapInt64")
- __attribute__ ((no_split_stack));
- _Bool
- CompareAndSwapInt64 (int64_t *val, int64_t old, int64_t new)
- {
- return __sync_bool_compare_and_swap (val, old, new);
- }
- _Bool CompareAndSwapUint32 (uint32_t *, uint32_t, uint32_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.CompareAndSwapUint32")
- __attribute__ ((no_split_stack));
- _Bool
- CompareAndSwapUint32 (uint32_t *val, uint32_t old, uint32_t new)
- {
- return __sync_bool_compare_and_swap (val, old, new);
- }
- _Bool CompareAndSwapUint64 (uint64_t *, uint64_t, uint64_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.CompareAndSwapUint64")
- __attribute__ ((no_split_stack));
- _Bool
- CompareAndSwapUint64 (uint64_t *val, uint64_t old, uint64_t new)
- {
- return __sync_bool_compare_and_swap (val, old, new);
- }
- _Bool CompareAndSwapUintptr (uintptr_t *, uintptr_t, uintptr_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.CompareAndSwapUintptr")
- __attribute__ ((no_split_stack));
- _Bool
- CompareAndSwapUintptr (uintptr_t *val, uintptr_t old, uintptr_t new)
- {
- return __sync_bool_compare_and_swap (val, old, new);
- }
- _Bool CompareAndSwapPointer (void **, void *, void *)
- __asm__ (GOSYM_PREFIX "sync_atomic.CompareAndSwapPointer")
- __attribute__ ((no_split_stack));
- _Bool
- CompareAndSwapPointer (void **val, void *old, void *new)
- {
- return __sync_bool_compare_and_swap (val, old, new);
- }
- int32_t AddInt32 (int32_t *, int32_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.AddInt32")
- __attribute__ ((no_split_stack));
- int32_t
- AddInt32 (int32_t *val, int32_t delta)
- {
- return __sync_add_and_fetch (val, delta);
- }
- uint32_t AddUint32 (uint32_t *, uint32_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.AddUint32")
- __attribute__ ((no_split_stack));
- uint32_t
- AddUint32 (uint32_t *val, uint32_t delta)
- {
- return __sync_add_and_fetch (val, delta);
- }
- int64_t AddInt64 (int64_t *, int64_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.AddInt64")
- __attribute__ ((no_split_stack));
- int64_t
- AddInt64 (int64_t *val, int64_t delta)
- {
- return __sync_add_and_fetch (val, delta);
- }
- uint64_t AddUint64 (uint64_t *, uint64_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.AddUint64")
- __attribute__ ((no_split_stack));
- uint64_t
- AddUint64 (uint64_t *val, uint64_t delta)
- {
- return __sync_add_and_fetch (val, delta);
- }
- uintptr_t AddUintptr (uintptr_t *, uintptr_t)
- __asm__ (GOSYM_PREFIX "sync_atomic.AddUintptr")
- __attribute__ ((no_split_stack));
- uintptr_t
- AddUintptr (uintptr_t *val, uintptr_t delta)
- {
- return __sync_add_and_fetch (val, delta);
- }
- int32_t LoadInt32 (int32_t *addr)
- __asm__ (GOSYM_PREFIX "sync_atomic.LoadInt32")
- __attribute__ ((no_split_stack));
- int32_t
- LoadInt32 (int32_t *addr)
- {
- int32_t v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, v))
- v = *addr;
- return v;
- }
- int64_t LoadInt64 (int64_t *addr)
- __asm__ (GOSYM_PREFIX "sync_atomic.LoadInt64")
- __attribute__ ((no_split_stack));
- int64_t
- LoadInt64 (int64_t *addr)
- {
- int64_t v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, v))
- v = *addr;
- return v;
- }
- uint32_t LoadUint32 (uint32_t *addr)
- __asm__ (GOSYM_PREFIX "sync_atomic.LoadUint32")
- __attribute__ ((no_split_stack));
- uint32_t
- LoadUint32 (uint32_t *addr)
- {
- uint32_t v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, v))
- v = *addr;
- return v;
- }
- uint64_t LoadUint64 (uint64_t *addr)
- __asm__ (GOSYM_PREFIX "sync_atomic.LoadUint64")
- __attribute__ ((no_split_stack));
- uint64_t
- LoadUint64 (uint64_t *addr)
- {
- uint64_t v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, v))
- v = *addr;
- return v;
- }
- uintptr_t LoadUintptr (uintptr_t *addr)
- __asm__ (GOSYM_PREFIX "sync_atomic.LoadUintptr")
- __attribute__ ((no_split_stack));
- uintptr_t
- LoadUintptr (uintptr_t *addr)
- {
- uintptr_t v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, v))
- v = *addr;
- return v;
- }
- void *LoadPointer (void **addr)
- __asm__ (GOSYM_PREFIX "sync_atomic.LoadPointer")
- __attribute__ ((no_split_stack));
- void *
- LoadPointer (void **addr)
- {
- void *v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, v))
- v = *addr;
- return v;
- }
- void StoreInt32 (int32_t *addr, int32_t val)
- __asm__ (GOSYM_PREFIX "sync_atomic.StoreInt32")
- __attribute__ ((no_split_stack));
- void
- StoreInt32 (int32_t *addr, int32_t val)
- {
- int32_t v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, val))
- v = *addr;
- }
- void StoreInt64 (int64_t *addr, int64_t val)
- __asm__ (GOSYM_PREFIX "sync_atomic.StoreInt64")
- __attribute__ ((no_split_stack));
- void
- StoreInt64 (int64_t *addr, int64_t val)
- {
- int64_t v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, val))
- v = *addr;
- }
- void StoreUint32 (uint32_t *addr, uint32_t val)
- __asm__ (GOSYM_PREFIX "sync_atomic.StoreUint32")
- __attribute__ ((no_split_stack));
- void
- StoreUint32 (uint32_t *addr, uint32_t val)
- {
- uint32_t v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, val))
- v = *addr;
- }
- void StoreUint64 (uint64_t *addr, uint64_t val)
- __asm__ (GOSYM_PREFIX "sync_atomic.StoreUint64")
- __attribute__ ((no_split_stack));
- void
- StoreUint64 (uint64_t *addr, uint64_t val)
- {
- uint64_t v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, val))
- v = *addr;
- }
- void StoreUintptr (uintptr_t *addr, uintptr_t val)
- __asm__ (GOSYM_PREFIX "sync_atomic.StoreUintptr")
- __attribute__ ((no_split_stack));
- void
- StoreUintptr (uintptr_t *addr, uintptr_t val)
- {
- uintptr_t v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, val))
- v = *addr;
- }
- void StorePointer (void **addr, void *val)
- __asm__ (GOSYM_PREFIX "sync_atomic.StorePointer")
- __attribute__ ((no_split_stack));
- void
- StorePointer (void **addr, void *val)
- {
- void *v;
- v = *addr;
- while (! __sync_bool_compare_and_swap (addr, v, val))
- v = *addr;
- }