NDLI: Reconstruction of instruction idioms in a retargetable decompiler

Content Provider	IEEE Xplore Digital Library
Author	Kroustek, J. Pokorny, F.
Copyright Year	2013
Description	Author affiliation: Fac. of Inf. Technol., Brno Univ. of Technol., Brno, Czech Republic (Kroustek, J.; Pokorny, F.)
Abstract	Machine-code decompilation is a reverse-engineering discipline focused on reverse compilation. It performs an application recovery from binary executable files back into the high level language (HLL) representation. One of its critical tasks is to produce an accurate and well-readable code. However, this is a challenging task since the executable code may be produced by one of the modern compilers that use advanced optimizations. One type of such an optimization is usage of so-called instruction idioms. These idioms are used to produce faster or even smaller executable files. On the other hand, decompilation of instruction idioms without any advanced analysis produces almost unreadable HLL code that may confuse the user of a decompiler. In this paper, we present a method of instruction-idioms detection and reconstruction back into a readable form with the same meaning. This approach is adapted in an existing retargetable decompiler developed within the Lissom project. The implementation has been tested on several modern compilers and target architectures. According to our experimental results, the proposed solution is highly accurate on the RISC (Reduced Instruction Set Computer) processor families, but it should be further improved on the CISC (Complex Instruction Set Computer) architectures.
Starting Page	1519
Ending Page	1526
File Size	158333
Page Count	8
File Format	PDF
ISBN	9788360810521
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-08
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Polish Information Processing Society
Subject Keyword	Computers Operating systems Reverse engineering Decompiler Optimized production technology Lissom Computer architecture Registers Compiler optimizations Detection algorithms Bit twiddling hacks Instruction idioms
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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