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kernel: Add thread events to kernel event logger

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This adds a new event type to the kernel event logger that tracks
thread-related events: being added to the ready queue, pending a
thread, and exiting a thread.

It's the only event type that contains "subevents" and thus has a
non-void parameter in their respective _sys_k_event_logger_*()
function.  Luckily, as isn't the case with other events (such as IRQs
and thread switching), these functions are called from
platform-agnostic places, so there's no need to worry about changing
the assembly guts.

This is the first patch in a series adding support for better real-time
profiling of Zephyr applications.

Jira: ZEP-1463
Change-Id: I6d63607ba347f7a9cac3d016fef8f5a0a830e267
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
This commit is contained in:
Leandro Pereira 2017-03-08 17:13:24 -08:00 • committed by Anas Nashif
commit ffe74b45fa
4 changed files with 89 additions and 3 deletions
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16
kernel/include/ksched.h
View file

@ -9,6 +9,10 @@
#include <kernel_structs.h>
#ifdef CONFIG_KERNEL_EVENT_LOGGER
#include <logging/kernel_event_logger.h>
#endif /* CONFIG_KERNEL_EVENT_LOGGER */
extern k_tid_t const _main_thread;
extern k_tid_t const _idle_thread;
@ -336,6 +340,10 @@ static inline int _is_thread_ready(struct k_thread *thread)
static inline void _mark_thread_as_pending(struct k_thread *thread)
{
thread->base.thread_state |= _THREAD_PENDING;
#ifdef CONFIG_KERNEL_EVENT_LOGGER_THREAD
_sys_k_event_logger_thread_pend(thread);
#endif
}
/* mark a thread as not pending in its TCS */
@ -406,6 +414,10 @@ static inline void _ready_thread(struct k_thread *thread)
if (_is_thread_ready(thread)) {
_add_thread_to_ready_q(thread);
}
#ifdef CONFIG_KERNEL_EVENT_LOGGER_THREAD
_sys_k_event_logger_thread_ready(thread);
#endif
}
/**
@ -416,6 +428,10 @@ static inline void _ready_thread(struct k_thread *thread)
static inline void _mark_thread_as_dead(struct k_thread *thread)
{
thread->base.thread_state |= _THREAD_DEAD;
#ifdef CONFIG_KERNEL_EVENT_LOGGER_THREAD
_sys_k_event_logger_thread_exit(thread);
#endif
}
/*