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- #include <stdlib.h>
- #define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
- #include "FreeRTOS.h"
- #include "task.h"
- #undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
- #if( configSUPPORT_DYNAMIC_ALLOCATION == 0 )
- #error This file must not be used if configSUPPORT_DYNAMIC_ALLOCATION is 0
- #endif
- #define configADJUSTED_HEAP_SIZE ( configTOTAL_HEAP_SIZE - portBYTE_ALIGNMENT )
- #if( configAPPLICATION_ALLOCATED_HEAP == 1 )
-
- extern uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
- #else
- static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
- #endif
- static size_t xNextFreeByte = ( size_t ) 0;
- void *pvPortMalloc( size_t xWantedSize )
- {
- void *pvReturn = NULL;
- static uint8_t *pucAlignedHeap = NULL;
-
- #if( portBYTE_ALIGNMENT != 1 )
- {
- if( xWantedSize & portBYTE_ALIGNMENT_MASK )
- {
-
- xWantedSize += ( portBYTE_ALIGNMENT - ( xWantedSize & portBYTE_ALIGNMENT_MASK ) );
- }
- }
- #endif
- vTaskSuspendAll();
- {
- if( pucAlignedHeap == NULL )
- {
-
- pucAlignedHeap = ( uint8_t * ) ( ( ( portPOINTER_SIZE_TYPE ) &ucHeap[ portBYTE_ALIGNMENT ] ) & ( ~( ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) ) );
- }
-
- if( ( ( xNextFreeByte + xWantedSize ) < configADJUSTED_HEAP_SIZE ) &&
- ( ( xNextFreeByte + xWantedSize ) > xNextFreeByte ) )
- {
-
- pvReturn = pucAlignedHeap + xNextFreeByte;
- xNextFreeByte += xWantedSize;
- }
- traceMALLOC( pvReturn, xWantedSize );
- }
- ( void ) xTaskResumeAll();
- #if( configUSE_MALLOC_FAILED_HOOK == 1 )
- {
- if( pvReturn == NULL )
- {
- extern void vApplicationMallocFailedHook( void );
- vApplicationMallocFailedHook();
- }
- }
- #endif
- return pvReturn;
- }
- void vPortFree( void *pv )
- {
-
- ( void ) pv;
-
- configASSERT( pv == NULL );
- }
- void vPortInitialiseBlocks( void )
- {
-
- xNextFreeByte = ( size_t ) 0;
- }
- size_t xPortGetFreeHeapSize( void )
- {
- return ( configADJUSTED_HEAP_SIZE - xNextFreeByte );
- }
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