Vector35 / Vector35/binaryninja-api

Clang type parser prevents creation of zero width structures

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#4,078 2 comments 0 reactions 0 assignees View on GitHub

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Component: Type Parser Effort: Trivial Impact: Low
Dominant language
C++
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Forks
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Merged PRs (30d)
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Description

Bug Description:
Can't create zero width structure in using the type parser.

Steps To Reproduce:

  1. Open Types View
  2. Hit 'i'
  3. Type struct C {};
  4. Observe size is 1

Expected Behavior:
Empty structures should be zero width.

image

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the issue in the Types View by pressing 'i' and entering struct C {};, then trace the Clang type parser handling of empty structures. Done means the resulting structure reports zero width rather than size 1, with a regression test if the parser test location can be found.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
compilers, reverse-engineering
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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