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How to manually register a symbol address in dyld?
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How to manually register a symbol address in dyld?


  • Subject: How to manually register a symbol address in dyld?
  • From: Stéphane Corthésy <email@hidden>
  • Date: Tue, 13 Oct 2009 09:55:31 +0200

Hello,

For some reason (that I'll explain later), I need to load a bundle which contains symbols undefined in application libraries. BUT, though these symbols are undefined, the actual implementations are present in current runtime, but under a different symbol. Thus, before loading that bundle I need to manually tell dyld that symbol 'my_renamed_function' should be bound to 'my_original_function' already present in system libraries. Or I need a hook that would allow me to do that while loading the bundle. I'm working on 10.6. I tried to look at dyld source code, but got lost :-)
I tried to use NSInstallLinkEditErrorHandlers, but my handler wasn't invoked.


So, is there a way to do that, and how?

Thanks for your enlightenments,


Stéphane

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