Vector35 / Vector35/binaryninja-api

BNIL should handle address of structure member wherever the constant is in the expression

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Component: Core Core: HLIL IL Optimization Impact: Medium
Dominant language
C++
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Description

BNIL coerces structure_pointer + constant + var to &struct_pointer->foo + bar but doesn't coerce structure_pointer + var + constant to the same construct.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the two BNIL expressions shown in the issue and locate the coercion logic that recognizes a structure member address. Compare behavior when the constant appears before versus after the variable; done means both forms coerce to the same structure-member-plus-offset construct.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
reverse-engineering
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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