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tracing: trace sys_init calls

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Created tracing APIs to trace the enter and (exit + result) of
SYS_INIT and DEVICE_DT_DEFINE (and friends).

Signed-off-by: Yong Cong Sin <ycsin@meta.com>
This commit is contained in:
Yong Cong Sin 2024-06-14 20:40:49 +08:00 committed by Anas Nashif
parent 3daf69a5f0
commit 15dc87d172
7 changed files with 42 additions and 2 deletions
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10
include/zephyr/tracing/tracing.h
View file

@ -2348,6 +2348,16 @@ void sys_trace_isr_exit_to_scheduler(void);
void sys_trace_idle(void);
#endif /* CONFIG_PERCEPIO_TRACERECORDER */
/**
* @brief Called when entering an init function
*/
#define sys_trace_sys_init_enter(entry, level)
/**
* @brief Called when exiting an init function
*/
#define sys_trace_sys_init_exit(entry, level, result)
/** @} */ /* end of subsys_tracing_apis */
/** @} */ /* end of subsys_tracing */

7
kernel/init.c
View file

@ -363,12 +363,15 @@ static void z_sys_init_run_level(enum init_level level)
for (entry = levels[level]; entry < levels[level+1]; entry++) {
const struct device *dev = entry->dev;
int result;
sys_trace_sys_init_enter(entry, level);
if (dev != NULL) {
do_device_init(entry);
result = do_device_init(entry);
} else {
(void)entry->init_fn.sys();
result = entry->init_fn.sys();
}
sys_trace_sys_init_exit(entry, level, result);
}
}

3
subsys/tracing/ctf/tracing_ctf.h
View file

@ -349,6 +349,9 @@ extern "C" {
#define sys_port_trace_pm_device_runtime_disable_enter(dev)
#define sys_port_trace_pm_device_runtime_disable_exit(dev, ret)
#define sys_trace_sys_init_enter(...)
#define sys_trace_sys_init_exit(...)
void sys_trace_idle(void);
void sys_trace_isr_enter(void);
void sys_trace_isr_exit(void);

3
subsys/tracing/sysview/tracing_sysview.h
View file

@ -675,6 +675,9 @@ void sys_trace_k_thread_info(struct k_thread *thread);
SEGGER_SYSVIEW_RecordEndCallU32(TID_PM_DEVICE_RUNTIME_DISABLE, \
(uint32_t)ret)
#define sys_trace_sys_init_enter(...)
#define sys_trace_sys_init_exit(...)
#ifdef __cplusplus
}
#endif

3
subsys/tracing/test/tracing_test.h
View file

@ -732,4 +732,7 @@ void sys_trace_k_event_init(struct k_event *event);
#define sys_port_trace_socket_socketpair_enter(family, type, proto, sv)
#define sys_port_trace_socket_socketpair_exit(sockA, sockB, ret)
#define sys_trace_sys_init_enter(...)
#define sys_trace_sys_init_exit(...)
#endif /* ZEPHYR_TRACE_TEST_H */

13
subsys/tracing/user/tracing_user.c
View file

@ -7,6 +7,7 @@
#include <tracing_user.h>
#include <zephyr/kernel.h>
#include <zephyr/init.h>
void __weak sys_trace_thread_create_user(struct k_thread *thread) {}
void __weak sys_trace_thread_abort_user(struct k_thread *thread) {}
@ -22,6 +23,8 @@ void __weak sys_trace_thread_priority_set_user(struct k_thread *thread, int prio
void __weak sys_trace_isr_enter_user(void) {}
void __weak sys_trace_isr_exit_user(void) {}
void __weak sys_trace_idle_user(void) {}
void __weak sys_trace_sys_init_enter_user(const struct init_entry *entry, int level) {}
void __weak sys_trace_sys_init_exit_user(const struct init_entry *entry, int level, int result) {}
void sys_trace_thread_create(struct k_thread *thread)
{
@ -92,3 +95,13 @@ void sys_trace_idle(void)
{
sys_trace_idle_user();
}
void sys_trace_sys_init_enter(const struct init_entry *entry, int level)
{
sys_trace_sys_init_enter_user(entry, level);
}
void sys_trace_sys_init_exit(const struct init_entry *entry, int level, int result)
{
sys_trace_sys_init_exit_user(entry, level, result);
}

5
subsys/tracing/user/tracing_user.h
View file

@ -8,6 +8,7 @@
#ifndef _TRACE_USER_H
#define _TRACE_USER_H
#include <zephyr/kernel.h>
#include <zephyr/init.h>
#ifdef __cplusplus
extern "C" {
@ -27,6 +28,8 @@ void sys_trace_thread_pend_user(struct k_thread *thread);
void sys_trace_isr_enter_user(void);
void sys_trace_isr_exit_user(void);
void sys_trace_idle_user(void);
void sys_trace_sys_init_enter_user(const struct init_entry *entry, int level);
void sys_trace_sys_init_exit_user(const struct init_entry *entry, int level, int result);
void sys_trace_thread_create(struct k_thread *thread);
void sys_trace_thread_abort(struct k_thread *thread);
@ -42,6 +45,8 @@ void sys_trace_thread_pend(struct k_thread *thread);
void sys_trace_isr_enter(void);
void sys_trace_isr_exit(void);
void sys_trace_idle(void);
void sys_trace_sys_init_enter(const struct init_entry *entry, int level);
void sys_trace_sys_init_exit(const struct init_entry *entry, int level, int result);
#define sys_port_trace_k_thread_foreach_enter()
#define sys_port_trace_k_thread_foreach_exit()