103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
/*
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* FreeRTOS memory safety proofs with CBMC.
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* Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* http://aws.amazon.com/freertos
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* http://www.FreeRTOS.org
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*/
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#include "FreeRTOS.h"
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#include "queue.h"
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#include "queue_init.h"
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#include "cbmc.h"
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#ifndef ITEM_BOUND
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#define ITEM_BOUND 10
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#endif
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#if ( configUSE_QUEUE_SETS == 0 )
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BaseType_t prvCopyDataToQueue( Queue_t * const pxQueue,
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const void * pvItemToQueue,
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const BaseType_t xPosition )
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{
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if( pxQueue->uxItemSize > ( UBaseType_t ) 0 )
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{
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__CPROVER_assert( __CPROVER_r_ok( pvItemToQueue, ( size_t ) pxQueue->uxItemSize ), "pvItemToQueue region must be readable" );
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if( xPosition == queueSEND_TO_BACK )
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{
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__CPROVER_assert( __CPROVER_w_ok( ( void * ) pxQueue->pcWriteTo, ( size_t ) pxQueue->uxItemSize ), "pxQueue->pcWriteTo region must be writable" );
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}
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else
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{
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__CPROVER_assert( __CPROVER_w_ok( ( void * ) pxQueue->u.xQueue.pcReadFrom, ( size_t ) pxQueue->uxItemSize ), "pxQueue->u.xQueue.pcReadFrom region must be writable" );
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}
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return pdFALSE;
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}
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else
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{
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return nondet_BaseType_t();
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}
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}
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#endif /* if ( configUSE_QUEUE_SETS == 0 ) */
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void harness()
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{
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QueueHandle_t xQueue = xUnconstrainedQueueBoundedItemSize( ITEM_BOUND );
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if( xQueue )
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{
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void * pvItemToQueue = pvPortMalloc( xQueue->uxItemSize );
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BaseType_t * xHigherPriorityTaskWoken = pvPortMalloc( sizeof( BaseType_t ) );
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BaseType_t xCopyPosition;
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if( xQueue->uxItemSize == 0 )
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{
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/* uxQueue->xQueueType is a pointer to the head of the queue storage area.
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* If an item has a size, this pointer must not be modified after init.
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* Otherwise some of the write statements will fail. */
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xQueue->uxQueueType = nondet_int8_t();
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pvItemToQueue = 0;
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}
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/* This code checks explicitly for violations of the pxQueue->uxMessagesWaiting < pxQueue->uxLength
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* invariant. */
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xQueue->uxMessagesWaiting = nondet_UBaseType_t();
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if( !pvItemToQueue )
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{
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xQueue->uxItemSize = 0;
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}
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if( xCopyPosition == 2 )
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{
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__CPROVER_assume( xQueue->uxLength == 1 );
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}
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xQueueGenericSendFromISR( xQueue, pvItemToQueue, xHigherPriorityTaskWoken, xCopyPosition );
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}
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}
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