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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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26
include/logging/kernel_event_logger.h
View file

@ -23,6 +23,7 @@ extern "C" {
#define KERNEL_EVENT_LOGGER_CONTEXT_SWITCH_EVENT_ID 0x0001
#define KERNEL_EVENT_LOGGER_INTERRUPT_EVENT_ID 0x0002
#define KERNEL_EVENT_LOGGER_SLEEP_EVENT_ID 0x0003
#define KERNEL_EVENT_LOGGER_THREAD_EVENT_ID 0x0004
#ifndef _ASMLANGUAGE
@ -33,14 +34,33 @@ extern int _sys_k_event_logger_mask;
extern void _sys_k_event_logger_enter_sleep(void);
extern void _sys_k_event_logger_exit_sleep(void);
#else
static inline void _sys_k_event_logger_enter_sleep(void) {};
static inline void _sys_k_event_logger_exit_sleep(void) {};
static inline void _sys_k_event_logger_enter_sleep(void) {}
static inline void _sys_k_event_logger_exit_sleep(void) {}
#endif
#ifdef CONFIG_KERNEL_EVENT_LOGGER_INTERRUPT
extern void _sys_k_event_logger_interrupt(void);
#else
static inline void _sys_k_event_logger_interrupt(void) {};
static inline void _sys_k_event_logger_interrupt(void) {}
#endif
#ifdef CONFIG_KERNEL_EVENT_LOGGER_THREAD
#include <kernel.h>
enum sys_k_event_logger_thread_event {
KERNEL_LOG_THREAD_EVENT_READYQ,
KERNEL_LOG_THREAD_EVENT_PEND,
KERNEL_LOG_THREAD_EVENT_EXIT,
};
extern void _sys_k_event_logger_thread_ready(struct k_thread *thread);
extern void _sys_k_event_logger_thread_pend(struct k_thread *thread);
extern void _sys_k_event_logger_thread_exit(struct k_thread *thread);
#else
static inline void _sys_k_event_logger_thread_create(void *thread) {}
static inline void _sys_k_event_logger_thread_ready(void *thread) {}
static inline void _sys_k_event_logger_thread_pend(void *thread) {}
static inline void _sys_k_event_logger_thread_exit(void *thread) {}
#endif
/**