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C provenance semantics: examples

Peter Sewell 1 Kayvan Memarian 1 Victor Gomes 1 Jens Gustedt 2 Martin Uecker 3
2 CAMUS - Compilation pour les Architectures MUlti-coeurS
Inria Nancy - Grand Est, ICube - Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie
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 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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Submitted on : Thursday, April 4, 2019 - 11:47:08 AM
Last modification on : Monday, December 14, 2020 - 3:54:04 PM
Long-term archiving on: : Friday, July 5, 2019 - 1:19:05 PM


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  • HAL Id : hal-02089907, version 1


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



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