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计算机工程 ›› 2007, Vol. 33 ›› Issue (06): 86-88,9. doi: 10.3969/j.issn.1000-3428.2007.06.030

• 软件技术与数据库 • 上一篇    下一篇

IA-64逆向工程中谓词消除技术研究

苏 铭,宋宗宇,赵荣彩,钟 声
  

  1. (解放军信息工程大学计算机科学与技术系,郑州 450002)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-03-20 发布日期:2007-03-20

Research on Predicate Removing Technique
in IA-64 Reverse Engineering

SU Ming, SONG Zongyu, ZHAO Rongcai, ZHONG Sheng   

  1. (Department of Computer Science and Technology, Information Engineering College of PLA, Zhengzhou 450002)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-03-20 Published:2007-03-20

摘要: IA-64体系结构支持判断执行,提高指令级并行性,但是编译器为了充分利用该特性而做的优化将程序代码进行深度重构,对逆向工程来说很难从优化后的可执行代码中恢复原程序逻辑。该文提出了消除谓词的反优化技术,提高了可执行代码逆向工程的质量。

关键词: 逆向工程, 谓词消除, 反优化技术, IA-64

Abstract: IA-64 architecture support predication, which offers more opportunities for exploiting instruction level parallelism. It turns out, however, that compiler optimizations to take advantage of such architectural features can profoundly restructure the program’s code, making it potentially difficult to reconstruct the original program logic from an optimized Itanium executable. This paper describes several techniques to undo some of the effects of such optimizations and thereby improve the quality of reverse engineering such executables.

Key words: Reverse engineering, Predicate removing, Reverse optimizing technique, IA-64

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