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Add default implementations of vApplicationGetIdleTaskMemory and vApplicationGetTimerTaskMemory (#790)

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This PR introduces configKERNEL_PROVIDED_STATIC_MEMORY option
which the application can set to 1 to use the default implementations
of vApplicationGetIdleTaskMemory and vApplicationGetTimerTaskMemory
functions.

If the application enables static allocation (i.e. sets
configUSE_STATIC_ALLOCATION to 1) and does not provide the above 2
functions, it will result in linker error. The application has two options:

1. Set configKERNEL_PROVIDED_STATIC_MEMORY to 1 to use the default
    implementations of these functions.
2. Provide implementations of these 2 functions.

Note that default definitions are only available for non-MPU ports. The
reason is that the stack alignment requirements vary for different
architectures.
This commit is contained in:
Mehdi 2023-09-20 09:09:37 +03:30 committed by GitHub
parent c3ece08119
commit 7cd201c290
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2 changed files with 53 additions and 0 deletions
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4
include/FreeRTOS.h
View file

@ -1131,6 +1131,10 @@
#define configSUPPORT_STATIC_ALLOCATION 0
#endif
#ifndef configKERNEL_PROVIDED_STATIC_MEMORY
#define configKERNEL_PROVIDED_STATIC_MEMORY 0
#endif
#ifndef configSUPPORT_DYNAMIC_ALLOCATION
/* Defaults to 1 for backward compatibility. */
#define configSUPPORT_DYNAMIC_ALLOCATION 1

49
tasks.c
View file

@ -7653,3 +7653,52 @@ static void prvAddCurrentTaskToDelayedList( TickType_t xTicksToWait,
#endif
#endif /* if ( configINCLUDE_FREERTOS_TASK_C_ADDITIONS_H == 1 ) */
/*-----------------------------------------------------------*/
#if ( ( configSUPPORT_STATIC_ALLOCATION == 1 ) && ( configKERNEL_PROVIDED_STATIC_MEMORY == 1 ) && ( portUSING_MPU_WRAPPERS == 0 ) )
/*
* This is the kernel provided implementation of vApplicationGetIdleTaskMemory()
* to provide the memory that is used by the Idle task. It is used when
* configKERNEL_PROVIDED_STATIC_MEMORY is set to 1. The application can provide
* it's own implementation of vApplicationGetIdleTaskMemory by setting
* configKERNEL_PROVIDED_STATIC_MEMORY to 0 or leaving it undefined.
*/
void vApplicationGetIdleTaskMemory( StaticTask_t ** ppxIdleTaskTCBBuffer,
StackType_t ** ppxIdleTaskStackBuffer,
uint32_t * pulIdleTaskStackSize )
{
static StaticTask_t xIdleTaskTCB;
static StackType_t uxIdleTaskStack[ configMINIMAL_STACK_SIZE ];
*ppxIdleTaskTCBBuffer = &( xIdleTaskTCB );
*ppxIdleTaskStackBuffer = &( uxIdleTaskStack[ 0 ] );
*pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;
}
#endif /* #if ( ( configSUPPORT_STATIC_ALLOCATION == 1 ) && ( configKERNEL_PROVIDED_STATIC_MEMORY == 1 ) && ( portUSING_MPU_WRAPPERS == 0 ) ) */
/*-----------------------------------------------------------*/
#if ( ( configSUPPORT_STATIC_ALLOCATION == 1 ) && ( configKERNEL_PROVIDED_STATIC_MEMORY == 1 ) && ( portUSING_MPU_WRAPPERS == 0 ) )
/*
* This is the kernel provided implementation of vApplicationGetTimerTaskMemory()
* to provide the memory that is used by the Timer service task. It is used when
* configKERNEL_PROVIDED_STATIC_MEMORY is set to 1. The application can provide
* it's own implementation of vApplicationGetTimerTaskMemory by setting
* configKERNEL_PROVIDED_STATIC_MEMORY to 0 or leaving it undefined.
*/
void vApplicationGetTimerTaskMemory( StaticTask_t ** ppxTimerTaskTCBBuffer,
StackType_t ** ppxTimerTaskStackBuffer,
uint32_t * pulTimerTaskStackSize )
{
static StaticTask_t xTimerTaskTCB;
static StackType_t uxTimerTaskStack[ configTIMER_TASK_STACK_DEPTH ];
*ppxTimerTaskTCBBuffer = &( xTimerTaskTCB );
*ppxTimerTaskStackBuffer = &( uxTimerTaskStack[ 0 ] );
*pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
}
#endif /* #if ( ( configSUPPORT_STATIC_ALLOCATION == 1 ) && ( configKERNEL_PROVIDED_STATIC_MEMORY == 1 ) && ( portUSING_MPU_WRAPPERS == 0 ) ) */
/*-----------------------------------------------------------*/