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Feature #11771

closed

Fix model for struct_size()

Added by Evgeny Novikov over 2 years ago. Updated over 2 years ago.

Status:
Closed
Priority:
High
Assignee:
Evgeny Novikov
Category:
Environment models
Target version:
3.7
Start date:
07/21/2022
Due date:
% Done:

0%

Estimated time:
Published in build:

Description

Linux 5.18 changed the definition of macro struct_size(), so that the model for internal __ab_c_size() stopped working (#11624). Moreover, now there is a bunch of false alarms where another similar API, array3_size() hits. The latter changed from the function to the macro in Linux 5.18. It would be better to bind models with the top-level API rather than with underlying helper functions that do not seem to be stable.

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 #1

Updated by Evgeny Novikov over 2 years ago

  • Status changed from New to Resolved

I did all the best in branch overflow-models. Preliminary testing demonstrated that all related false alarms either become safes/unknowns or there are unsafes that demonstrate clearly that some extra models for other APIs should be developed to avoid excessive nondeterminism. Let's see on complete test results.

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 #2

Updated by Evgeny Novikov over 2 years ago

  • Status changed from Resolved to Closed

As expected complete testing demonstrated awesome results, so I merged the branch to master in db65d7feb.

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