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Please use this identifier to cite or link to this item: http://hdl.handle.net/1813/7305
Title: From System F to Typed Assembly Language (Extended Version)
Authors: Morrisett, Greg
Walker, David
Crary, Karl
Glew, Neal
Keywords: computer science
technical report
Issue Date: Nov-1997
Publisher: Cornell University
Citation: http://techreports.library.cornell.edu:8081/Dienst/UI/1.0/Display/cul.cs/TR97-1651
Abstract: We motivate the design of a statically typed assembly language (TAL) and present a type-preserving translation from System F to TAL. The TAL we present is based on a conventional RISC assembly language, but its static type system provides support for enforcing high-level language abstractions, such as closures, tuples, and objects, as well as user-defined abstract data types. The type system ensures that well-typed programs cannot violate these abstractions. In addition, the typing constructs place almost no restrictions on low-level optimizations such as register allocation, instruction selection, or instruction scheduling. Our translation to TAL is specified as a sequence of type-preserving transformations, including CPS and closure conversion phases; type-correct source programs are mapped to type-correct assembly language. A key contribution is an approach to polymorphic closure conversion that is considerably simpler than previous work. The compiler and typed assembly language provide a fully automatic way to produce proof carrying code, suitable for use in systems where untrusted and potentially malicious code must be checked for safety before execution.
URI: http://hdl.handle.net/1813/7305
Appears in Collections:Computer Science Technical Reports

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