Special note:
In earlier days, all libraries can be found on iOS rather than OSX, they’re either located at their own paths like /System/Library/PrivateFrameworks/StoreServices.framework/StoreServices or inside a big cache at /System/Library/Caches/com.apple.dyld/dyld_shared_cache_armXXX. If it’s in the cache, you have to decache and extract the separate binaries for analysis.
The situation changed nowadays that some of the binaries are found locally on OSX, and my guess is that the binaries on OSX contain debug symbols that debuggers need. Be noted on this and everything should work as expected 
Thanks,
snakeninny