| /* | |
| FreeRTOS V8.0.1 - Copyright (C) 2014 Real Time Engineers Ltd. | |
| All rights reserved | |
| VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
| *************************************************************************** | |
| * * | |
| * FreeRTOS provides completely free yet professionally developed, * | |
| * robust, strictly quality controlled, supported, and cross * | |
| * platform software that has become a de facto standard. * | |
| * * | |
| * Help yourself get started quickly and support the FreeRTOS * | |
| * project by purchasing a FreeRTOS tutorial book, reference * | |
| * manual, or both from: http://www.FreeRTOS.org/Documentation * | |
| * * | |
| * Thank you! * | |
| * * | |
| *************************************************************************** | |
| 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. Full license text is available from the following | |
| link: http://www.freertos.org/a00114.html | |
| 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, books, training, latest versions, | |
| license and Real Time Engineers Ltd. contact details. | |
| http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
| including FreeRTOS+Trace - an indispensable productivity tool, a DOS | |
| compatible FAT file system, and our tiny thread aware UDP/IP stack. | |
| http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High | |
| Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS | |
| licenses offer ticketed support, indemnification and middleware. | |
| http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
| engineered and independently SIL3 certified version for use in safety and | |
| mission critical applications that require provable dependability. | |
| 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 == 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( ( TaskHandle_t ) 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( ( TaskHandle_t ) 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 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 }; \ | |
| \ | |
| \ | |
| /* Has the extremity of the task stack ever been written over? */ \ | |
| if( memcmp( ( void * ) pxCurrentTCB->pxStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \ | |
| { \ | |
| vApplicationStackOverflowHook( ( TaskHandle_t ) 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() \ | |
| { \ | |
| 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 ) */ | |
| /*-----------------------------------------------------------*/ | |
| #endif /* STACK_MACROS_H */ | |