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Return stack block size and current free space in TaskStatus

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For some reason, the pxStackBase member is not set in the TaskStatus_t
struct as returned by uxTaskGetSystemState(), so we are expanding its
function by returning the total size of the stack block in the high 16
bits and the current amount of free stack space in the low 16 bits.
This commit is contained in:
Stephen Casner 2018-01-08 12:57:47 -08:00
parent e533523275
commit ae5a434f76
1 changed files with 7 additions and 0 deletions
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7
components/freertos/tasks.c
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@ -87,6 +87,7 @@ task.h is included from an application file. */
#include "StackMacros.h"
#include "portmacro.h"
#include "semphr.h"
#include "multi_heap_poisoning.h"
/* Lint e961 and e750 are suppressed as a MISRA exception justified because the
MPU ports require MPU_WRAPPERS_INCLUDED_FROM_API_FILE to be defined for the
@ -3749,6 +3750,12 @@ BaseType_t xTaskGetAffinity( TaskHandle_t xTask )
pxTaskStatusArray[ uxTask ].xTaskNumber = pxNextTCB->uxTCBNumber;
pxTaskStatusArray[ uxTask ].eCurrentState = eState;
pxTaskStatusArray[ uxTask ].uxCurrentPriority = pxNextTCB->uxPriority;
#ifndef CONFIG_HEAP_POISONING_DISABLED
poison_head_t* stackblk = (poison_head_t*)(pxNextTCB->pxStack - sizeof(poison_head_t));
uint32_t stackinfo = stackblk->alloc_size << 16;
stackinfo |= pxNextTCB->pxTopOfStack - pxNextTCB->pxStack;
pxTaskStatusArray[ uxTask ].pxStackBase = (StackType_t*)stackinfo;
#endif
#if ( INCLUDE_vTaskSuspend == 1 )
{