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Add a stack pointer bounds check when configCHECK_FOR_STACK_OVERFLOW is set to 2. (#1216)

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Add a stack pointer bounds check when configCHECK_FOR_STACK_OVERFLOW is set to 2.
This commit is contained in:
Ren Mingrui 2024-12-30 17:11:52 +08:00 committed by GitHub
parent f05244a8d5
commit e55bde2133
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GPG key ID: B5690EEEBB952194
1 changed files with 16 additions and 15 deletions
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7
include/stack_macros.h
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@ -93,7 +93,8 @@
const uint32_t * const pulStack = ( uint32_t * ) pxCurrentTCB->pxStack; \
const uint32_t ulCheckValue = ( uint32_t ) 0xa5a5a5a5U; \
\
if( ( pulStack[ 0 ] != ulCheckValue ) || \
if( ( pxCurrentTCB->pxTopOfStack <= pxCurrentTCB->pxStack + portSTACK_LIMIT_PADDING ) || \
( pulStack[ 0 ] != ulCheckValue ) || \
( pulStack[ 1 ] != ulCheckValue ) || \
( pulStack[ 2 ] != ulCheckValue ) || \
( pulStack[ 3 ] != ulCheckValue ) ) \
@ -120,8 +121,8 @@
\
pcEndOfStack -= sizeof( ucExpectedStackBytes ); \
\
/* Has the extremity of the task stack ever been written over? */ \
if( memcmp( ( void * ) pcEndOfStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \
if( ( pxCurrentTCB->pxTopOfStack >= pxCurrentTCB->pxEndOfStack - portSTACK_LIMIT_PADDING ) || \
( memcmp( ( void * ) pcEndOfStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) ) \
{ \
char * pcOverflowTaskName = pxCurrentTCB->pcTaskName; \
vApplicationStackOverflowHook( ( TaskHandle_t ) pxCurrentTCB, pcOverflowTaskName ); \