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Research on VM-based Program Spectra Difference Analysis and Fault Localization

Author: YeZuoZuo
Tutor: CaiMing
School: Zhejiang University
Course: Applied Computer Technology
Keywords: Virtual Machine Software debugging Fault location Procedures spectrum
CLC: TP311.11
Type: Master's thesis
Year: 2008
Downloads: 81
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Abstract


With the extensive application of computer technology , the size and complexity of software systems is rising , due to a software error is a direct result of the failure rate of the system continued to be incremented . Software failure occurs , the debugger automatically lead to failure and positioning software failure is a very interesting research topic . In this paper, a number of problems in the software debugging and fault localization techniques the spectral differences analysis and fault location technology of virtual machine support program , and carried out research , implementation and verification . This paper first introduces the general concepts of software debugging , has done a detailed analysis of the current the international software automatically debugging and fault location technology as well as the virtual machine technology research , pointed out the advantages of virtual machine support for fault location technology . On the basis of spectral analysis of several common procedures , the paper proposes a new program ordered sequence of the spectrum - the branch of the object code , it is able to better express program running characteristics and source-level program spectrum is that it need not be a program inserted pile . To get through Bochs program spectrum , a detailed analysis of the architecture of the open source emulator Bochs Bochs is closely related with the subject of the CPU module and debug module implementation mechanism . In this paper, the virtual machine support program differences in spectral analysis and fault location technology framework . The application spectrum of abstract expression programs run and access procedures spectrum Bochs , the most similar to the successful operation of a certain distance from the standard selection and trouble-free operation , compare these two run the spectrum between differences , resulting in a program suspected fault location report. Bochs program the spectrum difference analysis and fault location system BPSFLS, and take advantage of the Siemens test suite contains failure program on the fault location BPSFLS quality experimental . The experimental results show that the system can more accurately locate the program fault associated with the control flow .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Programming > Programming method
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