130 lines
5.7 KiB
C
130 lines
5.7 KiB
C
/*
|
|
* FreeRTOS Kernel V10.2.1
|
|
* Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
* this software and associated documentation files (the "Software"), to deal in
|
|
* the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
|
* the Software, and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
|
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
|
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
|
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* http://www.FreeRTOS.org
|
|
* http://aws.amazon.com/freertos
|
|
*
|
|
* 1 tab == 4 spaces!
|
|
*/
|
|
|
|
#ifndef STACK_MACROS_H
|
|
#define STACK_MACROS_H
|
|
|
|
/*
|
|
* Call the stack overflow hook function if the stack of the task being swapped
|
|
* out is currently overflowed, or looks like it might have overflowed in the
|
|
* past.
|
|
*
|
|
* Setting configCHECK_FOR_STACK_OVERFLOW to 1 will cause the macro to check
|
|
* the current stack state only - comparing the current top of stack value to
|
|
* the stack limit. Setting configCHECK_FOR_STACK_OVERFLOW to greater than 1
|
|
* will also cause the last few stack bytes to be checked to ensure the value
|
|
* to which the bytes were set when the task was created have not been
|
|
* overwritten. Note this second test does not guarantee that an overflowed
|
|
* stack will always be recognised.
|
|
*/
|
|
|
|
/*-----------------------------------------------------------*/
|
|
|
|
#if( ( configCHECK_FOR_STACK_OVERFLOW == 1 ) && ( portSTACK_GROWTH < 0 ) )
|
|
|
|
/* Only the current stack state is to be checked. */
|
|
#define taskCHECK_FOR_STACK_OVERFLOW() \
|
|
{ \
|
|
/* Is the currently saved stack pointer within the stack limit? */ \
|
|
if( pxCurrentTCB->pxTopOfStack <= pxCurrentTCB->pxStack ) \
|
|
{ \
|
|
vApplicationStackOverflowHook( ( TaskHandle_t ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
|
|
} \
|
|
}
|
|
|
|
#endif /* configCHECK_FOR_STACK_OVERFLOW == 1 */
|
|
/*-----------------------------------------------------------*/
|
|
|
|
#if( ( configCHECK_FOR_STACK_OVERFLOW == 1 ) && ( portSTACK_GROWTH > 0 ) )
|
|
|
|
/* Only the current stack state is to be checked. */
|
|
#define taskCHECK_FOR_STACK_OVERFLOW() \
|
|
{ \
|
|
\
|
|
/* Is the currently saved stack pointer within the stack limit? */ \
|
|
if( pxCurrentTCB->pxTopOfStack >= pxCurrentTCB->pxEndOfStack ) \
|
|
{ \
|
|
vApplicationStackOverflowHook( ( TaskHandle_t ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
|
|
} \
|
|
}
|
|
|
|
#endif /* configCHECK_FOR_STACK_OVERFLOW == 1 */
|
|
/*-----------------------------------------------------------*/
|
|
|
|
#if( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH < 0 ) )
|
|
|
|
#define taskCHECK_FOR_STACK_OVERFLOW() \
|
|
{ \
|
|
const uint32_t * const pulStack = ( uint32_t * ) pxCurrentTCB->pxStack; \
|
|
const uint32_t ulCheckValue = ( uint32_t ) 0xa5a5a5a5; \
|
|
\
|
|
if( ( pulStack[ 0 ] != ulCheckValue ) || \
|
|
( pulStack[ 1 ] != ulCheckValue ) || \
|
|
( pulStack[ 2 ] != ulCheckValue ) || \
|
|
( pulStack[ 3 ] != ulCheckValue ) ) \
|
|
{ \
|
|
vApplicationStackOverflowHook( ( TaskHandle_t ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
|
|
} \
|
|
}
|
|
|
|
#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */
|
|
/*-----------------------------------------------------------*/
|
|
|
|
#if( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH > 0 ) )
|
|
|
|
#define taskCHECK_FOR_STACK_OVERFLOW() \
|
|
{ \
|
|
int8_t *pcEndOfStack = ( int8_t * ) pxCurrentTCB->pxEndOfStack; \
|
|
static const uint8_t ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
|
|
tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
|
|
tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
|
|
tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
|
|
tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE }; \
|
|
\
|
|
\
|
|
pcEndOfStack -= sizeof( ucExpectedStackBytes ); \
|
|
\
|
|
/* Has the extremity of the task stack ever been written over? */ \
|
|
if( memcmp( ( void * ) pcEndOfStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \
|
|
{ \
|
|
vApplicationStackOverflowHook( ( TaskHandle_t ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
|
|
} \
|
|
}
|
|
|
|
#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */
|
|
/*-----------------------------------------------------------*/
|
|
|
|
/* Remove stack overflow macro if not being used. */
|
|
#ifndef taskCHECK_FOR_STACK_OVERFLOW
|
|
#define taskCHECK_FOR_STACK_OVERFLOW()
|
|
#endif
|
|
|
|
|
|
|
|
#endif /* STACK_MACROS_H */
|
|
|