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Critical Section Monitor: Add low level timer support for simulation. Fix serial bugs and logic errors in initial implementation. Still does not work; takes assertions.

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This commit is contained in:
Gregory Nutt
2018-11-24 15:07:12 -06:00
parent 85c31fd4a2
commit 807d5bb4ae
7 changed files with 42 additions and 16 deletions
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sched/irq/irq_csection.c
+20 -6
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@@ -411,14 +411,22 @@ irqstate_t enter_critical_section(void)
FAR struct tcb_s *rtcb = this_task();
DEBUGASSERT(rtcb != NULL);
/* Yes.. Note that we have entered the critical section */
/* Have we just entered the critical section? Or is this a nested
* call to enter_critical_section.
*/
DEBUGASSERT(rtcb->irqcount >= 0 && rtcb->irqcount < UINT16_MAX);
if (++rtcb->irqcount == 1)
{
/* Note that we have entered the critical section */
#ifdef CONFIG_SCHED_CRITMONITOR
sched_critmon_csection(rtcb, true);
sched_critmon_csection(rtcb, true);
#endif
#ifdef CONFIG_SCHED_INSTRUMENTATION_CSECTION
sched_note_csection(rtcb, true);
sched_note_csection(rtcb, true);
#endif
}
}
/* Return interrupt status */
@@ -591,14 +599,20 @@ void leave_critical_section(irqstate_t flags)
FAR struct tcb_s *rtcb = this_task();
DEBUGASSERT(rtcb != NULL);
/* Yes.. Note that we have left the critical section */
/* Have we left entered the critical section? Or are we still nested. */
DEBUGASSERT(rtcb->irqcount > 0);
if (--rtcb->irqcount <= 0)
{
/* Note that we have left the critical section */
#ifdef CONFIG_SCHED_CRITMONITOR
sched_critmon_csection(rtcb, false);
sched_critmon_csection(rtcb, false);
#endif
#ifdef CONFIG_SCHED_INSTRUMENTATION_CSECTION
sched_note_csection(rtcb, false);
sched_note_csection(rtcb, false);
#endif
}
}
/* Restore the previous interrupt state. */