Vector35 / Vector35/binaryninja-api
add support for arm64_32
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- Dominant language
- C++
- Stars
- 1.3k
- Forks
- 298
- Avg merge
- 5d 5h
- Merged PRs (30d)
- 19
Description
arm64_32 is an architecture variant used by (at least) the Apple Watch S4 and newer as well as the HomePod. It is arm64 encodings and instructions but uses 32bit pointers.
Apparently you can manually patch existing MachO files with a new CPU subtype (0xc) to get armv7 default platform and pointer width and use open with options to specify an aarch64 arch and get decent results but we should make this process work out of the box and set things appropriately.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue names no file or test entry point; start by locating Mach-O CPU subtype handling and the existing arm64 architecture support. Verify that arm64_32 files work without manual patching and that the platform and pointer width are set appropriately.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- reverse-engineering
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100