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Date: Mon, 3 Dec 2001 17:08:58 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
cc: djgpp-workers AT delorie DOT com, Richard Dawe <rich AT phekda DOT freeserve DOT co DOT uk>
Subject: Re: Building a profiled version of libc
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On Mon, 3 Dec 2001, Hans-Bernhard Broeker wrote:

> > We cannot update specs until and unless we distribute libc_p.a as part of 
> > djdev.  If we update specs now, users will be unable to link with -pg, 
> > since GCC will complain about a missing libc_p.
> 
> Not quite. Note that the linux spec reads  
> 
> 	... %{profile:-lc_p} %{!profile:-lc}
> 
> This means -lc_p only gets called if you link with "-profile", but not
> with "-pg".  "-pg" only influences the choice of crt1.o startup file.  So
> "-profile" means more than "-pg": it means you want to profile libc
> itself, too, not just your own code.

Yes, but how does this contradict what I said above?  You cannot make 
even this change without having libc_p.a in djdev.  OTOH, if all you want 
is to link with the same libc.a under -pg, we support that now, without 
any changes.  Am I missing something?

> We already do have a libc_p in djdev203.zip, IIRC.

No, you are mistaken.  We have a dummy libpc.a, for compatibility with 
vintage v1.x Makefile's, but that's a different story.

> A similar trick may still work: provide a dummy libc_p.a in djdev204,
> and the real one in djpro204 or whatever we call it.

Why bother?  We support this today, without any changes and without any 
dummy libraries.