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nios2: implement thread monitor

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Pulled from the ARC implementation. Tested via
test_obj_tracing.

Change-Id: I858e89cc9187f99539b362ade8098b3606d31464
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2016-06-24 14:39:08 -07:00 committed by Inaky Perez-Gonzalez
parent 83c82e6cd6
commit a0464b802b
1 changed files with 36 additions and 0 deletions
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36
arch/nios2/core/thread.c
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@ -21,6 +21,40 @@
tNANO _nanokernel = {0};
#if defined(CONFIG_THREAD_MONITOR)
#define THREAD_MONITOR_INIT(tcs) thread_monitor_init(tcs)
#else
#define THREAD_MONITOR_INIT(tcs) \
do {/* do nothing */ \
} while ((0))
#endif
#if defined(CONFIG_THREAD_MONITOR)
/*
* @brief Initialize thread monitoring support
*
* Currently only inserts the new thread in the list of active threads.
*
* @return N/A
*/
static ALWAYS_INLINE void thread_monitor_init(struct tcs *tcs)
{
unsigned int key;
/*
* Add the newly initialized thread to head of the list of threads. This
* singly linked list of threads maintains ALL the threads in the system:
* both tasks and fibers regardless of whether they are runnable.
*/
key = irq_lock();
tcs->next_thread = _nanokernel.threads;
_nanokernel.threads = tcs;
irq_unlock(key);
}
#endif /* CONFIG_THREAD_MONITOR */
/* forward declaration to asm function to adjust setup the arguments
* to _thread_entry() since this arch puts the first four arguments
* in r4-r7 and not on the stack
@ -96,4 +130,6 @@ void _new_thread(char *stack_memory, unsigned stack_size,
#ifdef CONFIG_NANO_TIMEOUTS
_nano_timeout_tcs_init(tcs);
#endif
THREAD_MONITOR_INIT(tcs);
}