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Add traceSTARTING_SCHEDULER tracing hook. (#1082)

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* Add traceSTARTING_SCHEDULER tracing hook.

Discussed here: https://forums.freertos.org/t/tracing-improvements/20097

This hook enables tracers to run code on startup after all RTOS
resources are created and to detect that the scheduler is starting without
relying on traceENTER/traceEXIT macros.

It also provides tracers access to the task handle of all IDLE tasks,
allowing them to be identified unambiguously and without relying on
INCLUDE_xTaskGetIdleTaskHandle.
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Philipp Schilk 2024-06-10 19:44:10 +02:00 committed by GitHub
parent bee9037c46
commit e64d1e06b3
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7
include/FreeRTOS.h
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@ -621,6 +621,13 @@
#define traceTASK_SWITCHED_IN()
#endif
#ifndef traceSTARTING_SCHEDULER
/* Called after all idle tasks and timer task (if enabled) have been created
* successfully, just before the scheduler is started. */
#define traceSTARTING_SCHEDULER( xIdleTaskHandles )
#endif
#ifndef traceINCREASE_TICK_COUNT
/* Called before stepping the tick count after waking from tickless idle

2
tasks.c
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@ -3732,6 +3732,8 @@ void vTaskStartScheduler( void )
traceTASK_SWITCHED_IN();
traceSTARTING_SCHEDULER( xIdleTaskHandles );
/* Setting up the timer tick is hardware specific and thus in the
* portable interface. */