184 lines
9.3 KiB
C
184 lines
9.3 KiB
C
|
/*
|
||
|
|
FreeRTOS V7.3.0 - Copyright (C) 2012 Real Time Engineers Ltd.
|
||
|
|
|
||
|
|
FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
|
||
|
|
http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||
|
|
|
||
|
|
***************************************************************************
|
||
|
|
* *
|
||
|
|
* FreeRTOS tutorial books are available in pdf and paperback. *
|
||
|
|
* Complete, revised, and edited pdf reference manuals are also *
|
||
|
|
* available. *
|
||
|
|
* *
|
||
|
|
* Purchasing FreeRTOS documentation will not only help you, by *
|
||
|
|
* ensuring you get running as quickly as possible and with an *
|
||
|
|
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||
|
|
* the FreeRTOS project to continue with its mission of providing *
|
||
|
|
* professional grade, cross platform, de facto standard solutions *
|
||
|
|
* for microcontrollers - completely free of charge! *
|
||
|
|
* *
|
||
|
|
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||
|
|
* *
|
||
|
|
* Thank you for using FreeRTOS, and thank you for your support! *
|
||
|
|
* *
|
||
|
|
***************************************************************************
|
||
|
|
|
||
|
|
|
||
|
|
This file is part of the FreeRTOS distribution.
|
||
|
|
|
||
|
|
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||
|
|
the terms of the GNU General Public License (version 2) as published by the
|
||
|
|
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||
|
|
>>>NOTE<<< The modification to the GPL is included to allow you to
|
||
|
|
distribute a combined work that includes FreeRTOS without being obliged to
|
||
|
|
provide the source code for proprietary components outside of the FreeRTOS
|
||
|
|
kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
|
more details. You should have received a copy of the GNU General Public
|
||
|
|
License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||
|
|
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||
|
|
by writing to Richard Barry, contact details for whom are available on the
|
||
|
|
FreeRTOS WEB site.
|
||
|
|
|
||
|
|
1 tab == 4 spaces!
|
||
|
|
|
||
|
|
***************************************************************************
|
||
|
|
* *
|
||
|
|
* Having a problem? Start by reading the FAQ "My application does *
|
||
|
|
* not run, what could be wrong?" *
|
||
|
|
* *
|
||
|
|
* http://www.FreeRTOS.org/FAQHelp.html *
|
||
|
|
* *
|
||
|
|
***************************************************************************
|
||
|
|
|
||
|
|
|
||
|
|
http://www.FreeRTOS.org - Documentation, training, latest versions, license
|
||
|
|
and contact details.
|
||
|
|
|
||
|
|
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||
|
|
including FreeRTOS+Trace - an indispensable productivity tool.
|
||
|
|
|
||
|
|
Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
|
||
|
|
the code with commercial support, indemnification, and middleware, under
|
||
|
|
the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
|
||
|
|
provide a safety engineered and independently SIL3 certified version under
|
||
|
|
the SafeRTOS brand: http://www.SafeRTOS.com.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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 == 0 )
|
||
|
|
|
||
|
|
/* FreeRTOSConfig.h is not set to check for stack overflows. */
|
||
|
|
#define taskFIRST_CHECK_FOR_STACK_OVERFLOW()
|
||
|
|
#define taskSECOND_CHECK_FOR_STACK_OVERFLOW()
|
||
|
|
|
||
|
|
#endif /* configCHECK_FOR_STACK_OVERFLOW == 0 */
|
||
|
|
/*-----------------------------------------------------------*/
|
||
|
|
|
||
|
|
#if( configCHECK_FOR_STACK_OVERFLOW == 1 )
|
||
|
|
|
||
|
|
/* FreeRTOSConfig.h is only set to use the first method of
|
||
|
|
overflow checking. */
|
||
|
|
#define taskSECOND_CHECK_FOR_STACK_OVERFLOW()
|
||
|
|
|
||
|
|
#endif
|
||
|
|
/*-----------------------------------------------------------*/
|
||
|
|
|
||
|
|
#if( ( configCHECK_FOR_STACK_OVERFLOW > 0 ) && ( portSTACK_GROWTH < 0 ) )
|
||
|
|
|
||
|
|
/* Only the current stack state is to be checked. */
|
||
|
|
#define taskFIRST_CHECK_FOR_STACK_OVERFLOW() \
|
||
|
|
{ \
|
||
|
|
/* Is the currently saved stack pointer within the stack limit? */ \
|
||
|
|
if( pxCurrentTCB->pxTopOfStack <= pxCurrentTCB->pxStack ) \
|
||
|
|
{ \
|
||
|
|
vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
|
||
|
|
} \
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* configCHECK_FOR_STACK_OVERFLOW > 0 */
|
||
|
|
/*-----------------------------------------------------------*/
|
||
|
|
|
||
|
|
#if( ( configCHECK_FOR_STACK_OVERFLOW > 0 ) && ( portSTACK_GROWTH > 0 ) )
|
||
|
|
|
||
|
|
/* Only the current stack state is to be checked. */
|
||
|
|
#define taskFIRST_CHECK_FOR_STACK_OVERFLOW() \
|
||
|
|
{ \
|
||
|
|
\
|
||
|
|
/* Is the currently saved stack pointer within the stack limit? */ \
|
||
|
|
if( pxCurrentTCB->pxTopOfStack >= pxCurrentTCB->pxEndOfStack ) \
|
||
|
|
{ \
|
||
|
|
vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
|
||
|
|
} \
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* configCHECK_FOR_STACK_OVERFLOW == 1 */
|
||
|
|
/*-----------------------------------------------------------*/
|
||
|
|
|
||
|
|
#if( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH < 0 ) )
|
||
|
|
|
||
|
|
#define taskSECOND_CHECK_FOR_STACK_OVERFLOW() \
|
||
|
|
{ \
|
||
|
|
static const unsigned char 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 }; \
|
||
|
|
\
|
||
|
|
\
|
||
|
|
/* Has the extremity of the task stack ever been written over? */ \
|
||
|
|
if( memcmp( ( void * ) pxCurrentTCB->pxStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \
|
||
|
|
{ \
|
||
|
|
vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
|
||
|
|
} \
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */
|
||
|
|
/*-----------------------------------------------------------*/
|
||
|
|
|
||
|
|
#if( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH > 0 ) )
|
||
|
|
|
||
|
|
#define taskSECOND_CHECK_FOR_STACK_OVERFLOW() \
|
||
|
|
{ \
|
||
|
|
char *pcEndOfStack = ( char * ) pxCurrentTCB->pxEndOfStack; \
|
||
|
|
static const unsigned char 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( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
|
||
|
|
} \
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */
|
||
|
|
/*-----------------------------------------------------------*/
|
||
|
|
|
||
|
|
#endif /* STACK_MACROS_H */
|
||
|
|
|