An LLVM PoC pass I've created a few months ago. As such, you probably shouldn't considering using it in production envrionment There might be bugs or whatsoever, and there are definitely places for improvement, who cares.
It removes all method references from the IR structs and create/re-use existing +initialize to dynamically add the methods.
First known LLVM pass that solves this issue.
Initially planned to keep private because:
- Buggy
- Why not
However since it only requires runtime dump to defeat this protection, releasing it seems to be OK
(Not exactly that easy due to the nature of +initialize)
By using the same technique at the LTO Stage, global SEL/ClassName obfuscation is possible without having to filter System SEL/ClassNames.
The actual code is left to the readers as an exercise