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kernel: Init back pointer to microkernel task

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Fibers initialize this back pointer to NULL as they are (by definition)
not microkernel tasks.  Microkernel tasks initialize it to their
corresponding 'ktask_t'.

However for nanokernel systems, the back pointer is always NULL. This
is because there is only one task in a nanokernel system (the background
task) and it can not pend on a nanokernel object--it must poll.

Change-Id: I9840fecc44224bef63d09d587d703720cf33ad57
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
This commit is contained in:
Peter Mitsis 2016-02-23 11:36:43 -05:00 • committed by Anas Nashif
commit b58878bb89
8 changed files with 51 additions and 11 deletions
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10
arch/arc/core/thread.c
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@ -101,7 +101,8 @@ static ALWAYS_INLINE void thread_monitor_init(struct tcs *tcs)
*
* @return N/A
*/
void _new_thread(char *pStackMem, unsigned stackSize, _thread_entry_t pEntry,
void _new_thread(char *pStackMem, unsigned stackSize,
void *uk_task_ptr, _thread_entry_t pEntry,
void *parameter1, void *parameter2, void *parameter3,
int priority, unsigned options)
{
@ -154,6 +155,13 @@ void _new_thread(char *pStackMem, unsigned stackSize, _thread_entry_t pEntry,
*/
tcs->entry = (struct __thread_entry *)(pInitCtx);
#endif
#ifdef CONFIG_MICROKERNEL
tcs->uk_task_ptr = uk_task_ptr;
#else
ARG_UNUSED(uk_task_ptr);
#endif
/*
* intlock_key is constructed based on ARCv2 ISA Programmer's
* Reference Manual CLRI instruction description: