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Added documentation of the locking discipline and renamed some predicates.

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This commit is contained in:
Tobias Reinhard 2022-12-28 13:11:55 -05:00
parent 3057a186c2
commit 4033b09210
5 changed files with 58 additions and 18 deletions
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15
Test/VeriFast/tasks/vTaskSwitchContext/src/tasks.c
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@ -905,7 +905,7 @@ static void prvYieldForTask( TCB_t * pxTCB,
// opened predicate `coreLocalInterruptInv_p()`
[1/2]pointer(&pxCurrentTCBs[coreID_f], ?gCurrentTCB0) &*&
integer_(&xYieldPendings[coreID_f], sizeof(BaseType_t), true, _)
// coreLocalSeg_TCB_p(gCurrentTCB0, 0)
// TCB_criticalNesting_p(gCurrentTCB0, 0)
&*&
// read access to current task's stack pointer, etc
// TCB_stack_p(gCurrentTCB0, ?ulFreeBytesOnStack);
@ -923,7 +923,7 @@ static void prvYieldForTask( TCB_t * pxTCB,
// opened predicate `coreLocalInterruptInv_p()`
[1/2]pointer(&pxCurrentTCBs[coreID_f], ?gCurrentTCB) &*&
integer_(&xYieldPendings[coreID_f], sizeof(BaseType_t), true, _)
// coreLocalSeg_TCB_p(gCurrentTCB, 0)
// TCB_criticalNesting_p(gCurrentTCB, 0)
&*&
// read access to current task's stack pointer, etc
// TCB_stack_p(gCurrentTCB, ulFreeBytesOnStack);
@ -4384,7 +4384,7 @@ void vTaskSwitchContext( BaseType_t xCoreID )
// opened predicate `coreLocalInterruptInv_p()`
pointer(&pxCurrentTCBs[coreID_f], ?gCurrentTCB) &*&
integer_(&xYieldPendings[coreID_f], sizeof(BaseType_t), true, _) &*&
coreLocalSeg_TCB_p(gCurrentTCB, 0)
TCB_criticalNesting_p(gCurrentTCB, 0)
&*&
// read access to current task's stack pointer, etc
TCB_stack_p(gCurrentTCB, ?ulFreeBytesOnStack);
@ -4399,7 +4399,7 @@ void vTaskSwitchContext( BaseType_t xCoreID )
// opened predicate `coreLocalInterruptInv_p()`
pointer(&pxCurrentTCBs[coreID_f], ?gNewCurrentTCB) &*&
integer_(&xYieldPendings[coreID_f], sizeof(BaseType_t), true, _) &*&
coreLocalSeg_TCB_p(gCurrentTCB, 0)
TCB_criticalNesting_p(gCurrentTCB, 0)
&*&
// read access to current task's stack pointer, etc
TCB_stack_p(gCurrentTCB, ulFreeBytesOnStack);
@ -4432,10 +4432,10 @@ void vTaskSwitchContext( BaseType_t xCoreID )
// TODO: Inspect reason.
TaskHandle_t currentHandle = pxCurrentTCB;
//@ assert( currentHandle == gCurrentTCB );
//@ open coreLocalSeg_TCB_p(gCurrentTCB, 0);
//@ open TCB_criticalNesting_p(gCurrentTCB, 0);
UBaseType_t nesting = currentHandle->uxCriticalNesting;
configASSERT( nesting == 0 );
//@ close coreLocalSeg_TCB_p(gCurrentTCB, 0);
//@ close TCB_criticalNesting_p(gCurrentTCB, 0);
}
#else
configASSERT( pxCurrentTCB->uxCriticalNesting == 0 );
@ -5925,11 +5925,8 @@ void vTaskYieldWithinAPI( void )
#if ( portCRITICAL_NESTING_IN_TCB == 1 )
void vTaskEnterCritical( void )
///@ requires interruptState_p(?coreID, _) &*& unprotectedGlobalVars();
///@ ensures false;
{
portDISABLE_INTERRUPTS();
//@ open unprotectedGlobalVars();
if( xSchedulerRunning != pdFALSE )
{