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diff --git a/tex/outline/Makefile b/tex/outline/Makefile new file mode 100644 index 0000000..66eb399 --- /dev/null +++ b/tex/outline/Makefile @@ -0,0 +1,8 @@ +all: + pdflatex main.tex + bibtex main + pdflatex main.tex + pdflatex main.tex + +clean: + rm -f *.bbl *.aux *.blg *.log *.pdf *.out diff --git a/tex/outline/main.tex b/tex/outline/main.tex new file mode 100644 index 0000000..8c5cf98 --- /dev/null +++ b/tex/outline/main.tex @@ -0,0 +1,68 @@ +\documentclass{article} + +\usepackage[a4paper]{geometry} +\usepackage{hyperref} +\usepackage{amsmath} + +\title{INFO5993 \\ Research outline} +\author{Carlo Zancanaro} + +\begin{document} +\maketitle + +\section{Introduction} + +As my research contribution I intend to implement an algorithm presented in +\cite{gawlitza} for solving systems of fixpoint-equations for their least +solutions. I will then utilise this algorithm for the implementation of a static +analysis pass, interpreting program semantics over zones, within the LLVM +compiler framework. Finally I will be evaluating this new technique to determine +whether it is of practical use in real-world static analysis. + +\section{Technologies} + +My implementation will be provided in the {\tt C++} programming language, as it +is the language in which LLVM has been written. It will primarily be designed to +analyse programs written in the {\tt C} language. + +At the conclusion of my thesis I will have an implementation of the above +algorithm implemented as an LLVM optimisation/analysis pass. This will plug in +to the LLVM/Clang static-analysis framework in order to leverage the significant +work that has been done on the LLVM project. This will also mean that I do not +have to write a complete parser for the {\tt C} programming language (which +would no doubt be a long and error-prone operation). + +\section{Evaluation} + +To evaluate the algorithm I will be investigating two factors: execution time +and analysis range. + +\subsection{Execution time} + +Given the increased precision of results provided by the above algorithm I will +be interested in determining the runtime performance of the algorithm. Static +analysis is traditionally a slow process and so any speed-gains which can be +made will be especially beneficial to real world applications. This will also +mean that my optimisations must be especially aggressive to ensure that there is +no missed opportunity for speed gains to be made. + +\subsection{Analysis range} + +In the above algorithm there is a trade-off made wherein we sacrifice the +generality of the algorithm to provide more precise results. An important factor +in the utility of this algorithm will be whether it is applicable to the +majority of real-world code. The restrictions in the paper seem to be general +enough to encompass a large amount of existing code, but it remains to be shown +empirically whether this is the case. + +\section{Conclusion} + +My thesis will consist of implementing and evaluating a new approach to +fixpoint-iteration in order to perform abstract interpretation over zones for +the verification of program invariants. This implementation will be done within +the LLVM-compiler framework. The evaluation will particularly consider factors +of execution time and analysis range of the algorithm. + +\bibliographystyle{abbrv} +\bibliography{references.bib} +\end{document} diff --git a/tex/outline/references.bib b/tex/outline/references.bib new file mode 100644 index 0000000..9735e26 --- /dev/null +++ b/tex/outline/references.bib @@ -0,0 +1,86 @@ +@article{DBLP:tr/trier/MI96-11, + author = {Christian Fecht and + Helmut Seidl}, + title = {An Even Faster Solver for General Systems of Equations}, + journal = {Universit{\"a}t Trier, Mathematik/Informatik, Forschungsbericht}, + volume = {96-11}, + year = {1996}, + bibsource = {DBLP, http://dblp.uni-trier.de} +} +@inproceedings{CousotCousot77-1, + author = {Cousot, P{.} and Cousot, R{.}}, + title = {Abstract interpretation: a unified lattice model for static + analysis of programs by construction or approximation of + fixpoints}, + pages = {238--252}, + booktitle = {Conference Record of the Fourth Annual ACM SIGPLAN-SIGACT + Symposium on Principles of Programming Languages}, + address = {Los Angeles, California}, + publisher = {ACM Press, New York, NY}, + year = 1977, +} +@article{mine:hosc06, + author = {Min\'e, A{.}}, + title = {The Octagon Abstract Domain}, + journal = {Higher-Order and Symbolic Computation}, + editor = {O. Danvy}, + publisher = {Springer}, + year = {2006}, + volume = {19}, + number = {1}, + pages = {31--100}, + note = {\url{http://www.di.ens.fr/~mine/publi/article-mine-HOSC06.pdf}} +} +@inproceedings{mine:padoII, + author = {Min\'e, A{.}}, + title = {A New Numerical Abstract Domain Based on Difference-Bound Matrices}, + booktitle = {Proc. of the 2d Symp. on Programs as Data Objects (PADO II)}, + series = {Lecture Notes in Computer Science}, + year = {2001}, + month = {May}, + pages = {155--172}, + volume = {2053}, + publisher = {Springer}, + location = {Aarhus, Danemark}, + note = {\url{http://www.di.ens.fr/~mine/publi/article-mine-padoII.pdf}} +} +@inproceedings{DBLP:conf/vmcai/SankaranarayananSM05, + author = {Sriram Sankaranarayanan and + Henny B. Sipma and + Zohar Manna}, + title = {Scalable Analysis of Linear Systems Using Mathematical Programming}, + booktitle = {VMCAI}, + year = {2005}, + pages = {25-41}, + ee = {http://dx.doi.org/10.1007/978-3-540-30579-8_2}, + bibsource = {DBLP, http://dblp.uni-trier.de} +} +@inproceedings{Dor:2001:CCS:647170.718291, + author = {Dor, Nurit and Rodeh, Michael and Sagiv, Shmuel}, + title = {Cleanness Checking of String Manipulations in C Programs via + Integer Analysis}, + booktitle = {Proceedings of the 8th International Symposium on Static + Analysis}, + series = {SAS '01}, + year = {2001}, + isbn = {3-540-42314-1}, + pages = {194--212}, + numpages = {19}, + url = {http://dl.acm.org/citation.cfm?id=647170.718291}, + acmid = {718291}, + publisher = {Springer-Verlag}, + address = {London, UK, UK}, +} +@INPROCEEDINGS{Yovine98modelchecking, + author = {Sergio Yovine}, + title = {Model checking timed automata}, + booktitle = {In European Educational Forum: School on Embedded + Systems}, + year = {1998}, + pages = {114--152}, + publisher = {Springer-Verlag} +} +@article{gawlitza, + author = {Thomas Martin Gawlitza and Hemut Seidl}, + title = {Abstract Interpretation over Zones without Widening} +} |