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Disable stack overflow check for MPU ports (#1231)

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Disable stack overflow check for MPU ports

Stack overflow check is not straight forward to implement for MPU ports
because of the following reasons:
1. The context is stroed in TCB and as a result, pxTopOfStack member
   points to the context location in TCB.
2. System calls are executed on a separate privileged only stack.

It is still okay because an MPU region is used to protect task stack
which means task stack overflow will trigger an MPU fault.

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
This commit is contained in:
Gaurav-Aggarwal-AWS 2025-02-24 21:54:15 +05:30 • committed by GitHub
parent 1a1ae36f9a
commit df0aa5a815
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23 changed files with 41 additions and 149 deletions
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4
include/portable.h
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@ -93,10 +93,6 @@
#define portBASE_TYPE_EXIT_CRITICAL() taskEXIT_CRITICAL()
#endif
#ifndef portGET_CURRENT_TOP_OF_STACK
#define portGET_CURRENT_TOP_OF_STACK( pxCurrentTopOfStack ) { pxCurrentTopOfStack = ( StackType_t * ) pxCurrentTCB->pxTopOfStack; }
#endif
#ifndef configSTACK_DEPTH_TYPE
#define configSTACK_DEPTH_TYPE StackType_t
#endif