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[atomic] add stdc atomic detection. (#7536)

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This commit is contained in:
Bernard Xiong
2023-05-20 23:41:29 +08:00
committed by GitHub
parent 1e5dc5509e
commit 4b4c3c85f2
7 changed files with 68 additions and 38 deletions
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include/rtatomic.h
+30 -14
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@@ -6,10 +6,13 @@
* Change Logs:
* Date Author Notes
* 2023-03-14 WangShun first version
* 2023-05-20 Bernard add stdc atomic detection.
*/
#ifndef __RT_ATOMIC_H__
#define __RT_ATOMIC_H__
#if !defined(__cplusplus)
rt_atomic_t rt_hw_atomic_load(volatile rt_atomic_t *ptr);
void rt_hw_atomic_store(volatile rt_atomic_t *ptr, rt_atomic_t val);
rt_atomic_t rt_hw_atomic_add(volatile rt_atomic_t *ptr, rt_atomic_t val);
@@ -20,9 +23,30 @@ rt_atomic_t rt_hw_atomic_xor(volatile rt_atomic_t *ptr, rt_atomic_t val);
rt_atomic_t rt_hw_atomic_exchange(volatile rt_atomic_t *ptr, rt_atomic_t val);
void rt_hw_atomic_flag_clear(volatile rt_atomic_t *ptr);
rt_atomic_t rt_hw_atomic_flag_test_and_set(volatile rt_atomic_t *ptr);
rt_atomic_t rt_hw_atomic_compare_exchange_strong(volatile rt_atomic_t *ptr, rt_atomic_t *old, rt_atomic_t new);
rt_atomic_t rt_hw_atomic_compare_exchange_strong(volatile rt_atomic_t *ptr, rt_atomic_t *expected, rt_atomic_t desired);
/* To detect stdatomic */
#if !defined(RT_USING_HW_ATOMIC) && !defined(RT_USING_STDC_ATOMIC)
#if defined(__GNUC__) && defined(RT_USING_LIBC) && !defined(__STDC_NO_ATOMICS__)
#define RT_USING_STDC_ATOMIC
#endif /* __GNUC__ && .. */
#endif /* !RT_USING_HW_ATOMIC && !RT_USING_STDC_ATOMIC */
#if defined(RT_USING_HW_ATOMIC)
#define rt_atomic_load(ptr) rt_hw_atomic_load(ptr)
#define rt_atomic_store(ptr, v) rt_hw_atomic_store(ptr, v)
#define rt_atomic_add(ptr, v) rt_hw_atomic_add(ptr, v)
#define rt_atomic_sub(ptr, v) rt_hw_atomic_sub(ptr, v)
#define rt_atomic_and(ptr, v) rt_hw_atomic_and(ptr, v)
#define rt_atomic_or(ptr, v) rt_hw_atomic_or(ptr, v)
#define rt_atomic_xor(ptr, v) rt_hw_atomic_xor(ptr, v)
#define rt_atomic_exchange(ptr, v) rt_hw_atomic_exchange(ptr, v)
#define rt_atomic_flag_clear(ptr) rt_hw_atomic_flag_clear(ptr)
#define rt_atomic_flag_test_and_set(ptr) rt_hw_atomic_flag_test_and_set(ptr)
#define rt_atomic_compare_exchange_strong(ptr, v,des) rt_hw_atomic_compare_exchange_strong(ptr, v ,des)
#elif defined(RT_USING_STDC_ATOMIC)
#if defined(RT_USING_STDC_ATOMIC)
#ifndef __STDC_NO_ATOMICS__
#define rt_atomic_load(ptr) atomic_load(ptr)
#define rt_atomic_store(ptr, v) atomic_store(ptr, v)
@@ -38,18 +62,7 @@ rt_atomic_t rt_hw_atomic_compare_exchange_strong(volatile rt_atomic_t *ptr, rt_a
#else
#error "The standard library C doesn't support the atomic operation"
#endif /* __STDC_NO_ATOMICS__ */
#elif defined(RT_USING_HW_ATOMIC)
#define rt_atomic_load(ptr) rt_hw_atomic_load(ptr)
#define rt_atomic_store(ptr, v) rt_hw_atomic_store(ptr, v)
#define rt_atomic_add(ptr, v) rt_hw_atomic_add(ptr, v)
#define rt_atomic_sub(ptr, v) rt_hw_atomic_sub(ptr, v)
#define rt_atomic_and(ptr, v) rt_hw_atomic_and(ptr, v)
#define rt_atomic_or(ptr, v) rt_hw_atomic_or(ptr, v)
#define rt_atomic_xor(ptr, v) rt_hw_atomic_xor(ptr, v)
#define rt_atomic_exchange(ptr, v) rt_hw_atomic_exchange(ptr, v)
#define rt_atomic_flag_clear(ptr) rt_hw_atomic_flag_clear(ptr)
#define rt_atomic_flag_test_and_set(ptr) rt_hw_atomic_flag_test_and_set(ptr)
#define rt_atomic_compare_exchange_strong(ptr, v,des) rt_hw_atomic_compare_exchange_strong(ptr, v ,des)
#else
#include <rthw.h>
#define rt_atomic_load(ptr) rt_soft_atomic_load(ptr)
@@ -192,4 +205,7 @@ rt_inline rt_atomic_t rt_soft_atomic_compare_exchange_strong(volatile rt_atomic_
return temp;
}
#endif /* RT_USING_STDC_ATOMIC */
#endif /* __cplusplus */
#endif /* __RT_ATOMIC_H__ */