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Move forward Kernel submodule pointer (#218)

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* Move forward Kernel submodule pointer
* Fixing patches for CBMC proofs
* Update proofs to assume cTxLock != 127
* Update proofs to assume cRxLock != 127
This commit is contained in:
Cobus van Eeden 2020-08-26 23:50:09 -07:00 • committed by GitHub
parent a691c6199e
commit 4a026fd703
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 41 additions and 33 deletions
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4
FreeRTOS-Plus/Test/CBMC/include/queue_init.h
View file

@ -43,6 +43,7 @@
if( xSet )
{
xSet->cTxLock = nondet_int8_t();
__CPROVER_assume(xSet->cTxLock != 127);
xSet->cRxLock = nondet_int8_t();
xSet->uxMessagesWaiting = nondet_UBaseType_t();
xSet->xTasksWaitingToReceive.uxNumberOfItems = nondet_UBaseType_t();
@ -73,6 +74,7 @@ QueueHandle_t xUnconstrainedQueueBoundedItemSize( UBaseType_t uxItemSizeBound )
xQueueGenericCreate(uxQueueLength, uxItemSize, ucQueueType);
if(xQueue){
xQueue->cTxLock = nondet_int8_t();
__CPROVER_assume(xQueue->cTxLock != 127);
xQueue->cRxLock = nondet_int8_t();
xQueue->uxMessagesWaiting = nondet_UBaseType_t();
/* This is an invariant checked with a couple of asserts in the code base.
@ -105,6 +107,7 @@ QueueHandle_t xUnconstrainedQueue( void ) {
if(xQueue){
xQueue->cTxLock = nondet_int8_t();
__CPROVER_assume(xQueue->cTxLock != 127);
xQueue->cRxLock = nondet_int8_t();
xQueue->uxMessagesWaiting = nondet_UBaseType_t();
/* This is an invariant checked with a couple of asserts in the code base.
@ -126,6 +129,7 @@ QueueHandle_t xUnconstrainedMutex( void ) {
xQueueCreateMutex(ucQueueType);
if(xQueue){
xQueue->cTxLock = nondet_int8_t();
__CPROVER_assume(xQueue->cTxLock != 127);
xQueue->cRxLock = nondet_int8_t();
xQueue->uxMessagesWaiting = nondet_UBaseType_t();
/* This is an invariant checked with a couple of asserts in the code base.

2
FreeRTOS/Source

@ -1 +1 @@
Subproject commit 6199b72fbf57a7c5b3d7b195a3bd1446779314cd
Subproject commit 805b15a0224672bc89b2effffb7ab4c1debc7325

5
FreeRTOS/Test/CBMC/include/queue_init.h
View file

@ -43,6 +43,7 @@
if( xSet )
{
xSet->cTxLock = nondet_int8_t();
__CPROVER_assume(xSet->cTxLock != 127);
xSet->cRxLock = nondet_int8_t();
xSet->uxMessagesWaiting = nondet_UBaseType_t();
xSet->xTasksWaitingToReceive.uxNumberOfItems = nondet_UBaseType_t();
@ -73,7 +74,9 @@ QueueHandle_t xUnconstrainedQueueBoundedItemSize( UBaseType_t uxItemSizeBound )
xQueueGenericCreate(uxQueueLength, uxItemSize, ucQueueType);
if(xQueue){
xQueue->cTxLock = nondet_int8_t();
__CPROVER_assume(xQueue->cTxLock != 127);
xQueue->cRxLock = nondet_int8_t();
__CPROVER_assume(xQueue->cRxLock != 127);
xQueue->uxMessagesWaiting = nondet_UBaseType_t();
/* This is an invariant checked with a couple of asserts in the code base.
If it is false from the beginning, the CBMC proofs are not able to succeed*/
@ -105,6 +108,7 @@ QueueHandle_t xUnconstrainedQueue( void ) {
if(xQueue){
xQueue->cTxLock = nondet_int8_t();
__CPROVER_assume(xQueue->cTxLock != 127);
xQueue->cRxLock = nondet_int8_t();
xQueue->uxMessagesWaiting = nondet_UBaseType_t();
/* This is an invariant checked with a couple of asserts in the code base.
@ -126,6 +130,7 @@ QueueHandle_t xUnconstrainedMutex( void ) {
xQueueCreateMutex(ucQueueType);
if(xQueue){
xQueue->cTxLock = nondet_int8_t();
__CPROVER_assume(xQueue->cTxLock != 127);
xQueue->cRxLock = nondet_int8_t();
xQueue->uxMessagesWaiting = nondet_UBaseType_t();
/* This is an invariant checked with a couple of asserts in the code base.

13
FreeRTOS/Test/CBMC/patches/0005-Remove-volatile-qualifier-from-tasks-variables.patch
View file

@ -45,16 +45,16 @@ diff --git a/FreeRTOS/Source/tasks.c b/FreeRTOS/Source/tasks.c
index ff657733..8b57d198 100644
--- a/FreeRTOS/Source/tasks.c
+++ b/FreeRTOS/Source/tasks.c
@@ -331,7 +331,7 @@ typedef tskTCB TCB_t;
@@ -335,7 +335,7 @@ typedef tskTCB TCB_t;
/*lint -save -e956 A manual analysis and inspection has been used to determine
which static variables must be declared volatile. */
* which static variables must be declared volatile. */
-PRIVILEGED_DATA TCB_t * volatile pxCurrentTCB = NULL;
+PRIVILEGED_DATA TCB_t * pxCurrentTCB = NULL;
/* Lists for ready and blocked tasks. --------------------
xDelayedTaskList1 and xDelayedTaskList2 could be move to function scople but
@@ -340,8 +340,8 @@ the static qualifier. */
* xDelayedTaskList1 and xDelayedTaskList2 could be move to function scople but
@@ -344,8 +344,8 @@ PRIVILEGED_DATA TCB_t * volatile pxCurrentTCB = NULL;
PRIVILEGED_DATA static List_t pxReadyTasksLists[ configMAX_PRIORITIES ]; /*< Prioritised ready tasks. */
PRIVILEGED_DATA static List_t xDelayedTaskList1; /*< Delayed tasks. */
PRIVILEGED_DATA static List_t xDelayedTaskList2; /*< Delayed tasks (two lists are used - one for delays that have overflowed the current tick count. */
@ -65,10 +65,7 @@ index ff657733..8b57d198 100644
PRIVILEGED_DATA static List_t xPendingReadyList; /*< Tasks that have been readied while the scheduler was suspended. They will be moved to the ready list when the scheduler is resumed. */
#if ( INCLUDE_vTaskDelete == 1 )
@@ -368,10 +368,10 @@ PRIVILEGED_DATA static volatile UBaseType_t uxCurrentNumberOfTasks = ( UBaseTyp
/* Other file private variables. --------------------------------*/
PRIVILEGED_DATA static volatile UBaseType_t uxCurrentNumberOfTasks = ( UBaseType_t ) 0U;
@@ -372,7 +372,7 @@ PRIVILEGED_DATA static volatile UBaseType_t uxCurrentNumberOfTasks = ( UBaseType
PRIVILEGED_DATA static volatile TickType_t xTickCount = ( TickType_t ) configINITIAL_TICK_COUNT;
PRIVILEGED_DATA static volatile UBaseType_t uxTopReadyPriority = tskIDLE_PRIORITY;
PRIVILEGED_DATA static volatile BaseType_t xSchedulerRunning = pdFALSE;

1
FreeRTOS/Test/CBMC/proofs/Queue/prvNotifyQueueSetContainer/prvNotifyQueueSetContainer_harness.c
View file

@ -61,6 +61,7 @@ QueueSetHandle_t xUnconstrainedQueueSet()
if( xSet )
{
xSet->cTxLock = nondet_int8_t();
__CPROVER_assume(xSet->cTxLock != 127);
xSet->cRxLock = nondet_int8_t();
xSet->uxMessagesWaiting = nondet_UBaseType_t();
xSet->xTasksWaitingToReceive.uxNumberOfItems = nondet_UBaseType_t();

1
FreeRTOS/Test/CBMC/proofs/Queue/prvUnlockQueue/prvUnlockQueue_harness.c
View file

@ -62,6 +62,7 @@ QueueSetHandle_t xUnconstrainedQueueSet()
if( xSet )
{
xSet->cTxLock = nondet_int8_t();
__CPROVER_assume( xSet->cTxLock != 127 );
xSet->cRxLock = nondet_int8_t();
xSet->uxMessagesWaiting = nondet_UBaseType_t();
xSet->xTasksWaitingToReceive.uxNumberOfItems = nondet_UBaseType_t();