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Update Tasks.c CBMC Proofs to Latest Code (#547)

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* Fix Tasks.c patch, line numbers were out of sync and patching was
broken.
* Add assumption to TaskCreate proof that a task's priority is less than
the configured max.

With the introduction of
9efe10b805
an assertion is added to ensure a new task's priority is less than the
confirmed max. The CBMC proof for TaskCreate needs to include this assumption
in order to not assert and fail. Since this is now enforced in the code
we can add an assumption to the proof that a task must be created with a
priority smaller than the configured max.
This commit is contained in:
Carl Lundin 2021-04-02 14:17:26 -07:00 • committed by GitHub
parent 2e084538a8
commit aaece95529
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 34 additions and 35 deletions
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44
FreeRTOS/Test/CBMC/proofs/Task/TaskCreate/TaskCreate_harness.c
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@ -1,29 +1,27 @@
/*
* FreeRTOS memory safety proofs with CBMC.
* Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
* FreeRTOS V202012.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
* http://aws.amazon.com/freertos
* http://www.FreeRTOS.org
*/
#include <stdint.h>
@ -44,9 +42,11 @@ void harness()
char * pcName;
configSTACK_DEPTH_TYPE usStackDepth = STACK_DEPTH;
void * pvParameters;
UBaseType_t uxPriority;
TaskHandle_t * pxCreatedTask;
UBaseType_t uxPriority;
__CPROVER_assume( uxPriority < configMAX_PRIORITIES );
vNondetSetCurrentTCB();
vSetGlobalVariables();
vPrepareTaskLists();