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Reports (Technical Report) Year : 2019

C provenance semantics: examples

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Abstract

This note discusses the design of provenance semantics for C, looking at a series of examples. We consider three variants of the provenance-not-via-integer (PNVI) model: PNVI plain, PNVI address-exposed (PNVI-ae) and PNVI address-exposed user-disambiguation (PNVI-ae-udi), and also the provenance-via-integers (PVI) model. The examples include those of Exploring C Semantics and Pointer Provenance [POPL 2019] (also available as ISO WG14 N2311 http://www.open-std.org/jtc1/sc22/wg14/ www/docs/n2311.pdf), with several additions. This is based on recent discussion in the C memory object model study group. It should be read together with the two companion notes, one giving detailed diffs to the C standard text (N2362), and another giving detailed semantics for these variants (N2364).
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Dates and versions

hal-02089907 , version 1 (04-04-2019)

Identifiers

  • HAL Id : hal-02089907 , version 1

Cite

Peter Sewell, Kayvan Memarian, Victor B F Gomes, Jens Gustedt, Martin Uecker. C provenance semantics: examples. [Technical Report] N2363, ISO JCT1/SC22/WG14. 2019. ⟨hal-02089907⟩
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