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Fix MISRA violations for Kernel release V11.2.0

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kar-rahul-aws 2025-02-27 15:29:20 +05:30
parent df0aa5a815
commit f0f8e9e743
5 changed files with 126 additions and 112 deletions
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4
MISRA.md
View file

@ -120,8 +120,8 @@ _Ref 11.5.5_
MISRA C-2012 Rule 14.3: Controlling expressions shall not be invariant. MISRA C-2012 Rule 14.3: Controlling expressions shall not be invariant.
_Ref 14.3_ _Ref 14.3_
- The `configMAX_TASK_NAME_LEN` and `taskRESERVED_TASK_NAME_LENGTH` are - The `configMAX_TASK_NAME_LEN` , `taskRESERVED_TASK_NAME_LENGTH` and `SIZE_MAX`
evaluated to constants at compile time and may vary based on the build are evaluated to constants at compile time and may vary based on the build
configuration. configuration.
#### Rule 18.1 #### Rule 18.1

4
examples/coverity/coverity_misra.config
View file

@ -3,6 +3,10 @@
"standard" : "c2012", "standard" : "c2012",
"title": "Coverity MISRA Configuration", "title": "Coverity MISRA Configuration",
"deviations" : [ "deviations" : [
{
"deviation": "Rule 1.2",
"reason": "Allow use of __attribute__ for necessary functions placement in specific memory regions."
},
{ {
"deviation": "Rule 3.1", "deviation": "Rule 3.1",
"reason": "We post HTTP links in code comments which contain // inside comments blocks." "reason": "We post HTTP links in code comments which contain // inside comments blocks."

5
queue.c
View file

@ -513,7 +513,10 @@ BaseType_t xQueueGenericReset( QueueHandle_t xQueue,
/* Check for multiplication overflow. */ /* Check for multiplication overflow. */
( ( SIZE_MAX / uxQueueLength ) >= uxItemSize ) && ( ( SIZE_MAX / uxQueueLength ) >= uxItemSize ) &&
/* Check for addition overflow. */ /* Check for addition overflow. */
( ( SIZE_MAX - sizeof( Queue_t ) ) >= ( size_t ) ( uxQueueLength * uxItemSize ) ) ) /* MISRA Ref 14.3.1 [Configuration dependent invariant] */
/* More details at: https://github.com/FreeRTOS/FreeRTOS-Kernel/blob/main/MISRA.md#rule-143. */
/* coverity[misra_c_2012_rule_14_3_violation] */
( ( SIZE_MAX - sizeof( Queue_t ) ) >= ( size_t ) ( ( size_t ) uxQueueLength * ( size_t ) uxItemSize ) ) )
{ {
/* Allocate enough space to hold the maximum number of items that /* Allocate enough space to hold the maximum number of items that
* can be in the queue at any time. It is valid for uxItemSize to be * can be in the queue at any time. It is valid for uxItemSize to be

10
tasks.c
View file

@ -2016,7 +2016,7 @@ static void prvInitialiseNewTask( TaskFunction_t pxTaskCode,
pxNewTCB->xTaskRunState = taskTASK_NOT_RUNNING; pxNewTCB->xTaskRunState = taskTASK_NOT_RUNNING;
/* Is this an idle task? */ /* Is this an idle task? */
if( ( ( TaskFunction_t ) pxTaskCode == ( TaskFunction_t ) prvIdleTask ) || ( ( TaskFunction_t ) pxTaskCode == ( TaskFunction_t ) prvPassiveIdleTask ) ) if( ( ( TaskFunction_t ) pxTaskCode == ( TaskFunction_t ) ( &prvIdleTask ) ) || ( ( TaskFunction_t ) pxTaskCode == ( TaskFunction_t ) ( &prvPassiveIdleTask ) ) )
{ {
pxNewTCB->uxTaskAttributes |= taskATTRIBUTE_IS_IDLE; pxNewTCB->uxTaskAttributes |= taskATTRIBUTE_IS_IDLE;
} }
@ -3573,7 +3573,7 @@ static BaseType_t prvCreateIdleTasks( void )
{ {
#if ( configNUMBER_OF_CORES == 1 ) #if ( configNUMBER_OF_CORES == 1 )
{ {
pxIdleTaskFunction = prvIdleTask; pxIdleTaskFunction = &prvIdleTask;
} }
#else /* #if ( configNUMBER_OF_CORES == 1 ) */ #else /* #if ( configNUMBER_OF_CORES == 1 ) */
{ {
@ -3582,11 +3582,11 @@ static BaseType_t prvCreateIdleTasks( void )
* run when no other task is available to run. */ * run when no other task is available to run. */
if( xCoreID == 0 ) if( xCoreID == 0 )
{ {
pxIdleTaskFunction = prvIdleTask; pxIdleTaskFunction = &prvIdleTask;
} }
else else
{ {
pxIdleTaskFunction = prvPassiveIdleTask; pxIdleTaskFunction = &prvPassiveIdleTask;
} }
} }
#endif /* #if ( configNUMBER_OF_CORES == 1 ) */ #endif /* #if ( configNUMBER_OF_CORES == 1 ) */
@ -3603,7 +3603,7 @@ static BaseType_t prvCreateIdleTasks( void )
* name will contain an incorrect ASCII character. This is * name will contain an incorrect ASCII character. This is
* acceptable as the task name is used mainly for debugging. */ * acceptable as the task name is used mainly for debugging. */
cIdleName[ xIdleTaskNameIndex ] = ( char ) ( xCoreID + '0' ); cIdleName[ xIdleTaskNameIndex ] = ( char ) ( xCoreID + '0' );
cIdleName[ xIdleTaskNameIndex + 1 ] = '\0'; cIdleName[ xIdleTaskNameIndex + 1U ] = '\0';
} }
#endif /* if ( configNUMBER_OF_CORES > 1 ) */ #endif /* if ( configNUMBER_OF_CORES > 1 ) */

215
timers.c
View file

@ -257,7 +257,7 @@
configSTACK_DEPTH_TYPE uxTimerTaskStackSize; configSTACK_DEPTH_TYPE uxTimerTaskStackSize;
vApplicationGetTimerTaskMemory( &pxTimerTaskTCBBuffer, &pxTimerTaskStackBuffer, &uxTimerTaskStackSize ); vApplicationGetTimerTaskMemory( &pxTimerTaskTCBBuffer, &pxTimerTaskStackBuffer, &uxTimerTaskStackSize );
xTimerTaskHandle = xTaskCreateStaticAffinitySet( prvTimerTask, xTimerTaskHandle = xTaskCreateStaticAffinitySet( &prvTimerTask,
configTIMER_SERVICE_TASK_NAME, configTIMER_SERVICE_TASK_NAME,
uxTimerTaskStackSize, uxTimerTaskStackSize,
NULL, NULL,
@ -273,7 +273,7 @@
} }
#else /* if ( configSUPPORT_STATIC_ALLOCATION == 1 ) */ #else /* if ( configSUPPORT_STATIC_ALLOCATION == 1 ) */
{ {
xReturn = xTaskCreateAffinitySet( prvTimerTask, xReturn = xTaskCreateAffinitySet( &prvTimerTask,
configTIMER_SERVICE_TASK_NAME, configTIMER_SERVICE_TASK_NAME,
configTIMER_TASK_STACK_DEPTH, configTIMER_TASK_STACK_DEPTH,
NULL, NULL,
@ -292,7 +292,7 @@
configSTACK_DEPTH_TYPE uxTimerTaskStackSize; configSTACK_DEPTH_TYPE uxTimerTaskStackSize;
vApplicationGetTimerTaskMemory( &pxTimerTaskTCBBuffer, &pxTimerTaskStackBuffer, &uxTimerTaskStackSize ); vApplicationGetTimerTaskMemory( &pxTimerTaskTCBBuffer, &pxTimerTaskStackBuffer, &uxTimerTaskStackSize );
xTimerTaskHandle = xTaskCreateStatic( prvTimerTask, xTimerTaskHandle = xTaskCreateStatic( &prvTimerTask,
configTIMER_SERVICE_TASK_NAME, configTIMER_SERVICE_TASK_NAME,
uxTimerTaskStackSize, uxTimerTaskStackSize,
NULL, NULL,
@ -307,7 +307,7 @@
} }
#else /* if ( configSUPPORT_STATIC_ALLOCATION == 1 ) */ #else /* if ( configSUPPORT_STATIC_ALLOCATION == 1 ) */
{ {
xReturn = xTaskCreate( prvTimerTask, xReturn = xTaskCreate( &prvTimerTask,
configTIMER_SERVICE_TASK_NAME, configTIMER_SERVICE_TASK_NAME,
configTIMER_TASK_STACK_DEPTH, configTIMER_TASK_STACK_DEPTH,
NULL, NULL,
@ -462,7 +462,7 @@
/* Send a message to the timer service task to perform a particular action /* Send a message to the timer service task to perform a particular action
* on a particular timer definition. */ * on a particular timer definition. */
if( xTimerQueue != NULL ) if( ( xTimerQueue != NULL ) && ( xTimer != NULL ) )
{ {
/* Send a command to the timer service task to start the xTimer timer. */ /* Send a command to the timer service task to start the xTimer timer. */
xMessage.xMessageID = xCommandID; xMessage.xMessageID = xCommandID;
@ -513,7 +513,7 @@
/* Send a message to the timer service task to perform a particular action /* Send a message to the timer service task to perform a particular action
* on a particular timer definition. */ * on a particular timer definition. */
if( xTimerQueue != NULL ) if( ( xTimerQueue != NULL ) && ( xTimer != NULL ) )
{ {
/* Send a command to the timer service task to start the xTimer timer. */ /* Send a command to the timer service task to start the xTimer timer. */
xMessage.xMessageID = xCommandID; xMessage.xMessageID = xCommandID;
@ -974,110 +974,117 @@
* software timer. */ * software timer. */
pxTimer = xMessage.u.xTimerParameters.pxTimer; pxTimer = xMessage.u.xTimerParameters.pxTimer;
if( listIS_CONTAINED_WITHIN( NULL, &( pxTimer->xTimerListItem ) ) == pdFALSE ) if( pxTimer != NULL )
{ {
/* The timer is in a list, remove it. */ if( listIS_CONTAINED_WITHIN( NULL, &( pxTimer->xTimerListItem ) ) == pdFALSE )
( void ) uxListRemove( &( pxTimer->xTimerListItem ) ); {
/* The timer is in a list, remove it. */
( void ) uxListRemove( &( pxTimer->xTimerListItem ) );
}
else
{
mtCOVERAGE_TEST_MARKER();
}
traceTIMER_COMMAND_RECEIVED( pxTimer, xMessage.xMessageID, xMessage.u.xTimerParameters.xMessageValue );
/* In this case the xTimerListsWereSwitched parameter is not used, but
* it must be present in the function call. prvSampleTimeNow() must be
* called after the message is received from xTimerQueue so there is no
* possibility of a higher priority task adding a message to the message
* queue with a time that is ahead of the timer daemon task (because it
* pre-empted the timer daemon task after the xTimeNow value was set). */
xTimeNow = prvSampleTimeNow( &xTimerListsWereSwitched );
switch( xMessage.xMessageID )
{
case tmrCOMMAND_START:
case tmrCOMMAND_START_FROM_ISR:
case tmrCOMMAND_RESET:
case tmrCOMMAND_RESET_FROM_ISR:
/* Start or restart a timer. */
pxTimer->ucStatus |= ( uint8_t ) tmrSTATUS_IS_ACTIVE;
if( prvInsertTimerInActiveList( pxTimer, xMessage.u.xTimerParameters.xMessageValue + pxTimer->xTimerPeriodInTicks, xTimeNow, xMessage.u.xTimerParameters.xMessageValue ) != pdFALSE )
{
/* The timer expired before it was added to the active
* timer list. Process it now. */
if( ( pxTimer->ucStatus & tmrSTATUS_IS_AUTORELOAD ) != 0U )
{
prvReloadTimer( pxTimer, xMessage.u.xTimerParameters.xMessageValue + pxTimer->xTimerPeriodInTicks, xTimeNow );
}
else
{
pxTimer->ucStatus &= ( ( uint8_t ) ~tmrSTATUS_IS_ACTIVE );
}
/* Call the timer callback. */
traceTIMER_EXPIRED( pxTimer );
pxTimer->pxCallbackFunction( ( TimerHandle_t ) pxTimer );
}
else
{
mtCOVERAGE_TEST_MARKER();
}
break;
case tmrCOMMAND_STOP:
case tmrCOMMAND_STOP_FROM_ISR:
/* The timer has already been removed from the active list. */
pxTimer->ucStatus &= ( ( uint8_t ) ~tmrSTATUS_IS_ACTIVE );
break;
case tmrCOMMAND_CHANGE_PERIOD:
case tmrCOMMAND_CHANGE_PERIOD_FROM_ISR:
pxTimer->ucStatus |= ( uint8_t ) tmrSTATUS_IS_ACTIVE;
pxTimer->xTimerPeriodInTicks = xMessage.u.xTimerParameters.xMessageValue;
configASSERT( ( pxTimer->xTimerPeriodInTicks > 0 ) );
/* The new period does not really have a reference, and can
* be longer or shorter than the old one. The command time is
* therefore set to the current time, and as the period cannot
* be zero the next expiry time can only be in the future,
* meaning (unlike for the xTimerStart() case above) there is
* no fail case that needs to be handled here. */
( void ) prvInsertTimerInActiveList( pxTimer, ( xTimeNow + pxTimer->xTimerPeriodInTicks ), xTimeNow, xTimeNow );
break;
case tmrCOMMAND_DELETE:
#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
{
/* The timer has already been removed from the active list,
* just free up the memory if the memory was dynamically
* allocated. */
if( ( pxTimer->ucStatus & tmrSTATUS_IS_STATICALLY_ALLOCATED ) == ( uint8_t ) 0 )
{
vPortFree( pxTimer );
}
else
{
pxTimer->ucStatus &= ( ( uint8_t ) ~tmrSTATUS_IS_ACTIVE );
}
}
#else /* if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) */
{
/* If dynamic allocation is not enabled, the memory
* could not have been dynamically allocated. So there is
* no need to free the memory - just mark the timer as
* "not active". */
pxTimer->ucStatus &= ( ( uint8_t ) ~tmrSTATUS_IS_ACTIVE );
}
#endif /* configSUPPORT_DYNAMIC_ALLOCATION */
break;
default:
/* Don't expect to get here. */
break;
}
} }
else else
{ {
mtCOVERAGE_TEST_MARKER(); mtCOVERAGE_TEST_MARKER();
} }
traceTIMER_COMMAND_RECEIVED( pxTimer, xMessage.xMessageID, xMessage.u.xTimerParameters.xMessageValue );
/* In this case the xTimerListsWereSwitched parameter is not used, but
* it must be present in the function call. prvSampleTimeNow() must be
* called after the message is received from xTimerQueue so there is no
* possibility of a higher priority task adding a message to the message
* queue with a time that is ahead of the timer daemon task (because it
* pre-empted the timer daemon task after the xTimeNow value was set). */
xTimeNow = prvSampleTimeNow( &xTimerListsWereSwitched );
switch( xMessage.xMessageID )
{
case tmrCOMMAND_START:
case tmrCOMMAND_START_FROM_ISR:
case tmrCOMMAND_RESET:
case tmrCOMMAND_RESET_FROM_ISR:
/* Start or restart a timer. */
pxTimer->ucStatus |= ( uint8_t ) tmrSTATUS_IS_ACTIVE;
if( prvInsertTimerInActiveList( pxTimer, xMessage.u.xTimerParameters.xMessageValue + pxTimer->xTimerPeriodInTicks, xTimeNow, xMessage.u.xTimerParameters.xMessageValue ) != pdFALSE )
{
/* The timer expired before it was added to the active
* timer list. Process it now. */
if( ( pxTimer->ucStatus & tmrSTATUS_IS_AUTORELOAD ) != 0U )
{
prvReloadTimer( pxTimer, xMessage.u.xTimerParameters.xMessageValue + pxTimer->xTimerPeriodInTicks, xTimeNow );
}
else
{
pxTimer->ucStatus &= ( ( uint8_t ) ~tmrSTATUS_IS_ACTIVE );
}
/* Call the timer callback. */
traceTIMER_EXPIRED( pxTimer );
pxTimer->pxCallbackFunction( ( TimerHandle_t ) pxTimer );
}
else
{
mtCOVERAGE_TEST_MARKER();
}
break;
case tmrCOMMAND_STOP:
case tmrCOMMAND_STOP_FROM_ISR:
/* The timer has already been removed from the active list. */
pxTimer->ucStatus &= ( ( uint8_t ) ~tmrSTATUS_IS_ACTIVE );
break;
case tmrCOMMAND_CHANGE_PERIOD:
case tmrCOMMAND_CHANGE_PERIOD_FROM_ISR:
pxTimer->ucStatus |= ( uint8_t ) tmrSTATUS_IS_ACTIVE;
pxTimer->xTimerPeriodInTicks = xMessage.u.xTimerParameters.xMessageValue;
configASSERT( ( pxTimer->xTimerPeriodInTicks > 0 ) );
/* The new period does not really have a reference, and can
* be longer or shorter than the old one. The command time is
* therefore set to the current time, and as the period cannot
* be zero the next expiry time can only be in the future,
* meaning (unlike for the xTimerStart() case above) there is
* no fail case that needs to be handled here. */
( void ) prvInsertTimerInActiveList( pxTimer, ( xTimeNow + pxTimer->xTimerPeriodInTicks ), xTimeNow, xTimeNow );
break;
case tmrCOMMAND_DELETE:
#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
{
/* The timer has already been removed from the active list,
* just free up the memory if the memory was dynamically
* allocated. */
if( ( pxTimer->ucStatus & tmrSTATUS_IS_STATICALLY_ALLOCATED ) == ( uint8_t ) 0 )
{
vPortFree( pxTimer );
}
else
{
pxTimer->ucStatus &= ( ( uint8_t ) ~tmrSTATUS_IS_ACTIVE );
}
}
#else /* if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) */
{
/* If dynamic allocation is not enabled, the memory
* could not have been dynamically allocated. So there is
* no need to free the memory - just mark the timer as
* "not active". */
pxTimer->ucStatus &= ( ( uint8_t ) ~tmrSTATUS_IS_ACTIVE );
}
#endif /* configSUPPORT_DYNAMIC_ALLOCATION */
break;
default:
/* Don't expect to get here. */
break;
}
} }
} }
} }