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Multi-task compiling method based on graphical guarded command calculation

A compiling method and graphical technology, applied in code compiling, computing, program code conversion, etc., can solve problems such as insufficient expression ability of AADL

Active Publication Date: 2018-07-24
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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Problems solved by technology

However, in the embedded field, especially in the aerospace field, AADL has a large amount of data calculation and description of data flow behavior. At present, AADL has insufficient expression ability in this aspect.

Method used

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  • Multi-task compiling method based on graphical guarded command calculation
  • Multi-task compiling method based on graphical guarded command calculation
  • Multi-task compiling method based on graphical guarded command calculation

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Embodiment Construction

[0195] The present invention will be further described below in conjunction with accompanying drawing:

[0196] The present invention relates to a method for automatically compiling and generating executable multi-task Ada / C codes through graphical guard-style command calculus GCC_graph. For the GCC_graph program input by designers, the compiler automatically compiles it to generate corresponding executable multi-task Ada / C codes. code. All the functions of the compiler are implemented by the functional programming language CAML programming. Since CAML is a safe language, the CAML program is verified by its own compiler before execution. In addition, the compiler designed in the present invention uses a modular structure, and once the requirements change, only the corresponding modules need to be modified.

[0197] The invention defines the formal syntax and formal semantics of the graphical guard command calculus GCC_graph. The GCC_graph compiler, based on modular structure...

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Abstract

The invention provides a multi-task compiling method based on graphical guarded command calculation and relates to a method for automatically compiling and generating executable multi-task Ada / C codesthrough graphical guarded command calculation GCC_graph. For a GCC_graph program input by a designer, a compiler automatically compiles the program to generate a corresponding executable multi-task Ada / C code. All functions of the compiler are achieved through programming by use of a functional programming language CAML, and since CAML is a secure language, a CAML program is verified by a self-compiler before execution. Besides, the designed compiler adopts a modular structure, and once a program changes, we only need to modify the code of a corresponding module.

Description

technical field [0001] The present invention relates to a kind of multi-task compiling method based on graphical guard-style command calculus, in particular to a graphical guard-style command calculus language GCC_graph compiling and generating executable multi-task Ada / C code method. Background technique [0002] Synchronous methods are widely used in the design and verification of real-time embedded software, especially safety-critical systems (Safety-Critial Systems), because such systems have very strict requirements on key properties such as real-time performance, reliability and safety. A safety-critical embedded system is a type of reactive system (Reactive System), because it continuously reacts to input events in the environment, and produces results and outputs in a timely manner. Reactive systems must ensure the functional correctness of their own input and output specifications and the timing correctness of time constraints, while the synchronization method, base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/41
CPCG06F8/425
Inventor 杨志斌袁胜浩谢健刘承威王飞薛垒王永孟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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