Electrical Engineering
      and Computer Sciences

Electrical Engineering and Computer Sciences

COLLEGE OF ENGINEERING

UC Berkeley

Flow-Sensitive Type Qualifiers

Jeffrey S. Foster, Tachio Terauchi and Alex Aiken

EECS Department
University of California, Berkeley
Technical Report No. UCB/CSD-01-1162
November 2001

http://www.eecs.berkeley.edu/Pubs/TechRpts/2001/CSD-01-1162.pdf

We present a system for extending standard type systems with flow-sensitive type qualifiers. Users annotate their programs with type qualifiers, and inference checks that the annotations are correct. In our system only the type qualifiers are modeled flow-sensitively -- the underlying standard types are unchanged, which allows us to obtain an efficient constraint-based inference algorithm that integrates flow-insensitive alias analysis, effect inference, and ideas from linear type systems to support strong updates. We demonstrate the usefulness of flow-sensitive type qualifiers by finding a number of new locking bugs in the Linux kernel.


BibTeX citation:

@techreport{Foster:CSD-01-1162,
    Author = {Foster, Jeffrey S. and Terauchi, Tachio and Aiken, Alex},
    Title = {Flow-Sensitive Type Qualifiers},
    Institution = {EECS Department, University of California, Berkeley},
    Year = {2001},
    Month = {Nov},
    URL = {http://www.eecs.berkeley.edu/Pubs/TechRpts/2001/5718.html},
    Number = {UCB/CSD-01-1162},
    Abstract = {We present a system for extending standard type systems with flow-sensitive type qualifiers. Users annotate their programs with type qualifiers, and inference checks that the annotations are correct. In our system only the type qualifiers are modeled flow-sensitively -- the underlying standard types are unchanged, which allows us to obtain an efficient constraint-based inference algorithm that integrates flow-insensitive alias analysis, effect inference, and ideas from linear type systems to support strong updates. We demonstrate the usefulness of flow-sensitive type qualifiers by finding a number of new locking bugs in the Linux kernel.}
}

EndNote citation:

%0 Report
%A Foster, Jeffrey S.
%A Terauchi, Tachio
%A Aiken, Alex
%T Flow-Sensitive Type Qualifiers
%I EECS Department, University of California, Berkeley
%D 2001
%@ UCB/CSD-01-1162
%U http://www.eecs.berkeley.edu/Pubs/TechRpts/2001/5718.html
%F Foster:CSD-01-1162