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Date: Tue, 26 Nov 2002 00:05:46 -0500
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: [Patch] skipping import libraries for performance reasons - direct auto-import of dll's
Message-ID: <20021126050546.GA23583@redhat.com>
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References: <00fe01c29480$b9453340$cd6407d5 AT BRAMSCHE> <20021126013800 DOT GA14011 AT redhat DOT com> <3DE2E86D DOT 6010303 AT ece DOT gatech DOT edu> <20021126033039 DOT GA18478 AT redhat DOT com> <3DE2FBFE DOT 7050803 AT ece DOT gatech DOT edu>
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On Mon, Nov 25, 2002 at 11:43:42PM -0500, Charles Wilson wrote:
>Christopher Faylor wrote:
>
>
>>
>>Another thing that "would be nice" would be to speed up the handling of
>>import libraries.  It might not be necessary for ld to be as slow as
>>it is.
>
>
>What would probably speed that up dramatically is to construct the 
>importlib with more than a single symbol per bfd.  But I'm not sure 
>exactly how that should be done: all-in-one-massive-bfd (which might 
>cause problems with very large libs), or somewhere in between all-in-one 
>and one-per (which is much more complicated)?  If between, where? 
>5-per?  30-per? 100?

Yeah, this is what I was thinking.  I thought there was some code added
to ld recently which allowed selective linking of functions from a
single object file.  I remember this being a desirable feature of
Microsoft's linker.  If we don't have this, we stand the chance of
increasing the size of an executable for now good reason as it links
in the import library jmp *foo magic for unreferenced functions.

cgf

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