Computer Science ›› 2019, Vol. 46 ›› Issue (11A): 517-523.

• Interdiscipline & Application • Previous Articles     Next Articles

Source Code Memory Leak Static Detection Based on Complex Control Flow

JI Xiu-juan1, SUN Xiao-hui2, XU Jing3   

  1. (Binhai College,Nankai University,Tainjin 300270,China)1;
    (Jingdong Digital Technology,Beijing 100176,China)2;
    (College of Artificial Intelligence,Nankai University,Tianjin 300350,China)3
  • Online:2019-11-10 Published:2019-11-20

Abstract: C/C++ source code has a lot of memory leaks because of its manual allocation of heap memory space.Regarding complex control flow with multiple branches in the control flow graph,it is more difficult to detect memory leaks because of the uncertainty of memory allocating and releasing.A memory leak classification method was defined based on path abstraction in complex control flow.A projection-based model detection based on the analysis algorithm was proposed,where the original control flow graph is projected,thus simplifying and regulating the control flow graph.Meanwhile,in the inter-procedural analysis,by combining Cloning Expands the ICFG approach and Expanded Super-graph approach,a Inter-procedural Memory def-use Control Flow Graph(IMCFG) was built.At last,this algorithm is proved to be effective and precise by experiments.

Key words: Memory leak, Complex control flow, Projection, Static detection, C/C++

CLC Number: 

  • TP311
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