Function call path extracting method and device based on control flow diagram
A technology of function call paths and control flow graphs, which is applied in the direction of program control devices, etc., can solve problems such as insufficient testing process, and achieve the effect of easy acquisition and simplified analysis process
Inactive Publication Date: 2015-12-09
牟永敏 +1
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At present, in the field of software automation testing, object code instrumentation and source code instrumentation are mainstream instrumenta
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The invention discloses a function call path extracting method and device based on a control flow diagram. The method comprises the steps that a source code is processed to obtain an intermediate code with control flow information; the intermediate code is converted into the control flow diagram, and function calls are preserved in nodes in the control flow diagram; according to the number of the function calls in each node in the control flow diagram, the control flow diagram is processed, and the control flow diagram is converted into a function call relation diagram; a function call path is extracted according to the function call relation diagram. By the adoption of the function call path extracting method and device, the analysis process of the function call path can be simplified, and the accurate function call path can be more easily obtained.
Description
technical field [0001] The present invention relates to the technical field of software testing, in particular to a method and device for extracting a function call path based on a control flow graph. Background technique [0002] A function call path is a sequence of function names from program entry point to exit point, which combines control logic with function calls, and extends the granularity of code analysis from statements to functions. [0003] A program will generate multiple function call paths due to selection statements and control statements containing judgment conditions. In programming, there are three statement structures in the source code: sequence, selection, and loop. Sequential statements do not increase the number of function call paths, only selection statements and loop statements may generate more program branches. Taking C language as an example, the keywords if, for, while, and switch will generate multiple execution statements. Therefore, thes...
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Inventor 牟永敏
Owner 牟永敏
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