| 1298 | /*-----------------------------------------------------------*/ |
| 1299 | |
| 1300 | static void prvInitialiseNewTask( TaskFunction_t pxTaskCode, |
| 1301 | const char * const pcName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */ |
| 1302 | const uint32_t ulStackDepth, |
| 1303 | void * const pvParameters, |
| 1304 | UBaseType_t uxPriority, |
| 1305 | TaskHandle_t * const pxCreatedTask, |
| 1306 | TCB_t * pxNewTCB, |
| 1307 | const MemoryRegion_t * const xRegions ) |
| 1308 | { |
| 1309 | StackType_t * pxTopOfStack; |
| 1310 | UBaseType_t x; |
| 1311 | |
| 1312 | #if ( portUSING_MPU_WRAPPERS == 1 ) |
| 1313 | /* Should the task be created in privileged mode? */ |
| 1314 | BaseType_t xRunPrivileged; |
| 1315 | |
| 1316 | if( ( uxPriority & portPRIVILEGE_BIT ) != 0U ) |
| 1317 | { |
| 1318 | xRunPrivileged = pdTRUE; |
| 1319 | } |
| 1320 | else |
| 1321 | { |
| 1322 | xRunPrivileged = pdFALSE; |
| 1323 | } |
| 1324 | uxPriority &= ~portPRIVILEGE_BIT; |
| 1325 | #endif /* portUSING_MPU_WRAPPERS == 1 */ |
| 1326 | |
| 1327 | /* Avoid dependency on memset() if it is not required. */ |
| 1328 | #if ( tskSET_NEW_STACKS_TO_KNOWN_VALUE == 1 ) |
| 1329 | { |
| 1330 | /* Fill the stack with a known value to assist debugging. */ |
| 1331 | ( void ) memset( pxNewTCB->pxStack, ( int ) tskSTACK_FILL_BYTE, ( size_t ) ulStackDepth * sizeof( StackType_t ) ); |
| 1332 | } |
| 1333 | #endif /* tskSET_NEW_STACKS_TO_KNOWN_VALUE */ |
| 1334 | |
| 1335 | /* Calculate the top of stack address. This depends on whether the stack |
| 1336 | * grows from high memory to low (as per the 80x86) or vice versa. |
| 1337 | * portSTACK_GROWTH is used to make the result positive or negative as required |
| 1338 | * by the port. */ |
| 1339 | #if ( portSTACK_GROWTH < 0 ) |
| 1340 | { |
| 1341 | pxTopOfStack = &( pxNewTCB->pxStack[ ulStackDepth - ( uint32_t ) 1 ] ); |
| 1342 | pxTopOfStack = ( StackType_t * ) ( ( ( portPOINTER_SIZE_TYPE ) pxTopOfStack ) & ( ~( ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) ) ); /*lint !e923 !e9033 !e9078 MISRA exception. Avoiding casts between pointers and integers is not practical. Size differences accounted for using portPOINTER_SIZE_TYPE type. Checked by assert(). */ |
| 1343 | |
| 1344 | /* Check the alignment of the calculated top of stack is correct. */ |
| 1345 | configASSERT( ( ( ( portPOINTER_SIZE_TYPE ) pxTopOfStack & ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) == 0UL ) ); |
| 1346 | |
| 1347 | #if ( configRECORD_STACK_HIGH_ADDRESS == 1 ) |
| 1348 | { |
| 1349 | /* Also record the stack's high address, which may assist |
| 1350 | * debugging. */ |
| 1351 | pxNewTCB->pxEndOfStack = pxTopOfStack; |
| 1352 | } |
| 1353 | #endif /* configRECORD_STACK_HIGH_ADDRESS */ |
| 1354 | } |
| 1355 | #else /* portSTACK_GROWTH */ |
| 1356 | { |
| 1357 | pxTopOfStack = pxNewTCB->pxStack; |
no test coverage detected