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syscalls: greatly simplify system call declaration

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To define a system call, it's now sufficient to simply tag the inline
prototype with "__syscall" or "__syscall_inline" and include a special
generated header at the end of the header file.

The system call dispatch table and enumeration of system call IDs is now
automatically generated.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2017-09-28 16:54:35 -07:00 • committed by Andrew Boie
commit fa94ee7460
10 changed files with 291 additions and 65 deletions
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33
include/kernel.h
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@ -2477,13 +2477,9 @@ struct k_sem {
*
* @return N/A
*/
static inline void k_sem_init(struct k_sem *sem, unsigned int initial_count,
unsigned int limit);
K_SYSCALL_DECLARE3_VOID(K_SYSCALL_SEM_INIT, k_sem_init,
struct k_sem *, sem,
unsigned int, initial_count,
unsigned int, limit);
__syscall static inline void k_sem_init(struct k_sem *sem,
unsigned int initial_count,
unsigned int limit);
/**
* @brief Take a semaphore.
@ -2506,11 +2502,7 @@ K_SYSCALL_DECLARE3_VOID(K_SYSCALL_SEM_INIT, k_sem_init,
* @retval -EBUSY Returned without waiting.
* @retval -EAGAIN Waiting period timed out.
*/
static inline int k_sem_take(struct k_sem *sem, s32_t timeout);
K_SYSCALL_DECLARE2(K_SYSCALL_SEM_TAKE, k_sem_take, int,
struct k_sem *, sem,
s32_t, timeout);
__syscall static inline int k_sem_take(struct k_sem *sem, s32_t timeout);
/**
* @brief Give a semaphore.
@ -2524,10 +2516,7 @@ K_SYSCALL_DECLARE2(K_SYSCALL_SEM_TAKE, k_sem_take, int,
*
* @return N/A
*/
static inline void k_sem_give(struct k_sem *sem);
K_SYSCALL_DECLARE1_VOID(K_SYSCALL_SEM_GIVE, k_sem_give,
struct k_sem *, sem);
__syscall static inline void k_sem_give(struct k_sem *sem);
/**
* @brief Reset a semaphore's count to zero.
@ -2538,16 +2527,13 @@ K_SYSCALL_DECLARE1_VOID(K_SYSCALL_SEM_GIVE, k_sem_give,
*
* @return N/A
*/
static inline void k_sem_reset(struct k_sem *sem);
__syscall_inline static inline void k_sem_reset(struct k_sem *sem);
static inline void _impl_k_sem_reset(struct k_sem *sem)
{
sem->count = 0;
}
K_SYSCALL_DECLARE1_VOID_INLINE(K_SYSCALL_SEM_RESET, k_sem_reset,
struct k_sem *, sem);
/**
* @brief Get a semaphore's count.
*
@ -2557,16 +2543,13 @@ K_SYSCALL_DECLARE1_VOID_INLINE(K_SYSCALL_SEM_RESET, k_sem_reset,
*
* @return Current semaphore count.
*/
static inline unsigned int k_sem_count_get(struct k_sem *sem);
__syscall_inline static inline unsigned int k_sem_count_get(struct k_sem *sem);
static inline unsigned int _impl_k_sem_count_get(struct k_sem *sem)
{
return sem->count;
}
K_SYSCALL_DECLARE1_INLINE(K_SYSCALL_SEM_COUNT_GET, k_sem_count_get,
unsigned int, struct k_sem *, sem);
/**
* @brief Statically define and initialize a semaphore.
*
@ -4142,6 +4125,8 @@ inline void *operator new[](size_t size, void *ptr)
#endif /* defined(CONFIG_CPLUSPLUS) && defined(__cplusplus) */
#include <syscalls/kernel.h>
#endif /* !_ASMLANGUAGE */
#endif /* _kernel__h_ */