The compiler can't optimize if the symbols are called inter-module either.
And seriously, do you REALLY think that any changes the compiler makes at
that level will have measurable performance impacts ?.
There are good reasons to hide parts of the API that you don't want used by
external code - hiding symbols to improve performance is a big stretch.

And there have been linkers which did do a final optimization pass. (OS/2
for example).

Peter





From:   Cristian Rodríguez <[email protected]>
To:     [email protected],
Date:   26/07/2013 11:55
Subject:        Re: [PATCH] libssl: Hide library private symbols
Sent by:        [email protected]



El 25/07/13 21:46, Peter Waltenberg escribió:
> Doing this at link time is far easier and can cover all the OS's.

Yes, but this is the worst possible way, as the compiler cannot perform
optimizations as it does not know that the symbols are hidden.



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