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kernel: implement k_thread_create() as a syscall

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User threads can only create other nonessential user threads
of equal or lower priority and must have access to the entire
stack area.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2017-10-02 10:51:18 -07:00 • committed by Andrew Boie
commit 662c345cb6
2 changed files with 87 additions and 12 deletions
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12
include/kernel.h
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@ -567,12 +567,12 @@ extern void k_call_stacks_analyze(void);
*
* @return ID of new thread.
*/
extern k_tid_t k_thread_create(struct k_thread *new_thread,
k_thread_stack_t stack,
size_t stack_size,
k_thread_entry_t entry,
void *p1, void *p2, void *p3,
int prio, u32_t options, s32_t delay);
__syscall k_tid_t k_thread_create(struct k_thread *new_thread,
k_thread_stack_t stack,
size_t stack_size,
k_thread_entry_t entry,
void *p1, void *p2, void *p3,
int prio, u32_t options, s32_t delay);
/**
* @brief Drop a thread's privileges permanently to user mode