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FreeRTOS-Kernel/FreeRTOS/Test/CBMC/proofs/Task/TaskCreate/README.md
Yuhui Zheng 8156f64d1c Copying CBMC proofs from aws/amazon-freertos repo ./tools/cbmc to this repo ./FreeRTOS/Test/CBMC as is. 
The commit ID in aws/amazon-freertos is 0c8e0217f2a43bdeb364b58ae01c6c259e03ef1b.
2020-03-31 14:21:53 -07:00

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This proof demonstrates the memory safety of the TaskCreate function. We initialize task lists, but we set other data structures to unconstrained (arbitrary) values, including the data structures pxCurrentTCB, uxCurrentNumberOfTasks, pcName and pxCreateTask. STACK_DEPTH is set to a fixed number (10) since it is not possible to specify a range.

This proof is a work-in-progress. Proof assumptions are described in the harness. The proof also assumes the following functions are memory safe and have no side effects relevant to the memory safety of this function:

  • prvTraceGetObjectHandle
  • prvTraceGetTaskNumber
  • prvTraceSetObjectName
  • prvTraceSetPriorityProperty
  • prvTraceStoreKernelCall
  • prvTraceStoreTaskReady
  • pxPortInitialiseStack
  • vPortEnterCritical
  • vPortExitCritical
  • vPortGenerateSimulatedInterrupt