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Ignore JMP and treat JX==JNX when diffing basic blocks

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#11 1 comment 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
java

Research direction

No source file, test, or entry point is named. Reproduce the difference in BinDiff 6 on Windows 10 and trace basic-block comparison for terminal JMP instructions, including the JX versus JNX case. Done means blocks differing only in that jump are marked equal while other differences remain visible.

Written by the indexing model from the issue text.

Description

enhancement

Steps to reproduce the problem:

  1. Diff a program
  2. Open a function with some differences
  3. See some basic blocks which are marked as different only because of the jump at the end

What is the expected behavior?
See the following screenshot:
0j2Y7jD
In such cases, it would be helpful for the blocks to be marked as equal.

What went wrong?
They are marked as different.

What version of the product are you using? On what operating system?
BinDiff 6, Win10.

Ported from b/175509898

Dominant language
Java
Stars
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Forks
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PR merge metrics
No merged PRs in 30d

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