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kernel: add syscalls for k_object_access APIs

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These modify kernel object metadata and are intended to be callable from
user threads, need a privilege elevation for these to work.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2017-10-04 12:25:50 -07:00 • committed by Anas Nashif
commit 743e4686a0
4 changed files with 65 additions and 27 deletions
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52
include/kernel.h
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@ -215,7 +215,33 @@ int _k_object_validate(void *obj, enum k_objects otype, int init);
* @param object Address of the kernel object
*/
void _k_object_init(void *obj);
#else
static inline int _k_object_validate(void *obj, enum k_objects otype, int init)
{
ARG_UNUSED(obj);
ARG_UNUSED(otype);
ARG_UNUSED(init);
return 0;
}
static inline void _k_object_init(void *obj)
{
ARG_UNUSED(obj);
}
static inline void _impl_k_object_access_grant(void *object,
struct k_thread *thread)
{
ARG_UNUSED(object);
ARG_UNUSED(thread);
}
static inline void _impl_k_object_access_all_grant(void *object)
{
ARG_UNUSED(object);
}
#endif /* !CONFIG_USERSPACE */
/**
* grant a thread access to a kernel object
@ -227,7 +253,7 @@ void _k_object_init(void *obj);
* @param object Address of kernel object
* @param thread Thread to grant access to the object
*/
void k_object_access_grant(void *object, struct k_thread *thread);
__syscall void k_object_access_grant(void *object, struct k_thread *thread);
/**
@ -244,29 +270,7 @@ void k_object_access_grant(void *object, struct k_thread *thread);
*
* @param object Address of kernel object
*/
void k_object_access_all_grant(void *object);
#else
static inline int _k_object_validate(void *obj, enum k_objects otype, int init)
{
ARG_UNUSED(obj);
ARG_UNUSED(otype);
ARG_UNUSED(init);
return 0;
}
static inline void _k_object_init(void *obj)
{
ARG_UNUSED(obj);
}
static inline void k_object_access_grant(void *object, struct k_thread *thread)
{
ARG_UNUSED(object);
ARG_UNUSED(thread);
}
#endif /* CONFIG_USERSPACE */
__syscall void k_object_access_all_grant(void *object);
/* timeouts */