[修改] 增加freeRTOS
1. 版本FreeRTOSv202212.01，命名为kernel；
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#
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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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{
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"ENTRY": "QueueGenericCreateStatic",
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# A CBMC pointer is an object id followed by an offset into the object.
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# The size of the offset is limited by the size of the object id.
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"CBMC_OBJECT_BITS": "7",
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"CBMC_OBJECT_MAX_SIZE": "\"((UINT32_MAX>>(CBMC_OBJECT_BITS+1))\"",
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"CBMCFLAGS": [
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"--unwind 1",
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"--signed-overflow-check",
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"--unsigned-overflow-check"
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],
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"OBJS": [
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"$(ENTRY)_harness.goto",
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"$(FREERTOS)/Source/queue.goto",
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"$(FREERTOS)/Source/list.goto"
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],
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"DEF": [
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{
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"QeueuGenericCreateStatic_DynamicAllocation": [
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"CBMC_OBJECT_BITS={CBMC_OBJECT_BITS}",
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"CBMC_OBJECT_MAX_SIZE={CBMC_OBJECT_MAX_SIZE}",
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"configUSE_TRACE_FACILITY=0",
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"configGENERATE_RUN_TIME_STATS=0",
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"configSUPPORT_STATIC_ALLOCATION=1",
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"configSUPPORT_DYNAMIC_ALLOCATION=1"
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]
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},
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{
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"QeueuGenericCreateStatic_NoDynamicAllocation": [
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"CBMC_OBJECT_BITS={CBMC_OBJECT_BITS}",
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"CBMC_OBJECT_MAX_SIZE={CBMC_OBJECT_MAX_SIZE}",
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"configUSE_TRACE_FACILITY=0",
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"configGENERATE_RUN_TIME_STATS=0",
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"configSUPPORT_STATIC_ALLOCATION=1",
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"configSUPPORT_DYNAMIC_ALLOCATION=0"
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]
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}
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],
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"GENERATE_HEADER": [
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"queue_datastructure.h"
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]
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}
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/*
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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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* https://aws.amazon.com/freertos
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* https://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_datastructure.h"
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#include "cbmc.h"
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void harness()
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{
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UBaseType_t uxQueueLength;
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UBaseType_t uxItemSize;
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uint8_t ucQueueType;
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size_t storageSize;
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/* Allow CBMC to run in a reasonable amount of time. */
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__CPROVER_assume( ( uxQueueLength == QUEUE_LENGTH ) || ( uxItemSize == QUEUE_ITEM_SIZE ) );
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/* Prevent overflow in this harness. */
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__CPROVER_assume( ( uxQueueLength > 0 ) && ( ( storageSize / uxQueueLength ) == uxItemSize ) );
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uint8_t * pucQueueStorage = ( uint8_t * ) pvPortMalloc( storageSize );
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StaticQueue_t * pxStaticQueue = ( StaticQueue_t * ) pvPortMalloc( sizeof( StaticQueue_t ) );
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xQueueGenericCreateStatic( uxQueueLength, uxItemSize, pucQueueStorage, pxStaticQueue, ucQueueType );
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}
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The harness proves memory safety of
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QueueGenericCreateStatic under the assumption made in the harness.
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The principal assumption is that (uxItemSize * uxQueueLength) + sizeof(Queue_t)
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does not overflow. Further, ucQueueStorage must only be null iff uxItemSize is null.
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In addition, the passed queue storage is assumed to be allocated to the right size.
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The configurations for configSUPPORT_DYNAMIC_ALLOCATION set to 0 and 1 are checked.
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This proof is a work-in-progress. Proof assumptions are described in
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the harness. The proof also assumes the following functions are
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memory safe and have no side effects relevant to the memory safety of
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this function:
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* vPortEnterCritical
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* vPortExitCritical
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{ "expected-missing-functions":
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[
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"vApplicationTickHook",
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"pxPortInitialiseStack",
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"vPortCloseRunningThread",
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"vPortDeleteThread",
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"vPortEnterCritical",
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"vPortExitCritical",
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"vPortGenerateSimulatedInterrupt",
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"xPortStartScheduler",
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"pvTaskIncrementMutexHeldCount",
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"uxTaskGetTaskNumber",
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"vTaskInternalSetTimeOutState",
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"vTaskMissedYield",
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"vTaskPlaceOnEventList",
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"vTaskPriorityDisinheritAfterTimeout",
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"vTaskSuspendAll",
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"xTaskGetCurrentTaskHandle",
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"xTaskPriorityDisinherit",
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"xTaskPriorityInherit",
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"xTaskRemoveFromEventList",
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"xTaskResumeAll"
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],
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"proof-name": "QueueGenericCreateStatic",
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"proof-root": "Test/CBMC/proofs"
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}
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