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Date: Fri, 29 Dec 2000 13:25:50 -0500
To: djgpp-workers AT delorie DOT com
From: "Peter J. Farley III" <pjfarley AT banet DOT net>
Subject: Re: fcntl locking changes #3: ljmp/lcall patches for gcc 2.952
Cc: Morten Welinder <terra AT diku DOT dk>
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At 02:12 PM 12/29/00 +0000, Morten Welinder wrote:
 >
 >Would it be possible to simply define an LCALL macro to hide the
 >assembler differences?  It seems to me that spreading a complicated
 >version test out to a zillion places is going to bring grief in
 >the future.

An *excellent* idea, if only I knew how to code gas macros.  I only 
know IBM 3[679]0 Assembler well enough to know how to code macros, and 
that doesn't help much here.

If you (or someone) can code the macros, I would be happy to change the 
code to use them.  We would need LJMP as well as LCALL.  I would also 
need some advice on how gas searches for macros (do I #include them or 
does gas look in someplace like /include or what?).  And how do we use 
a macro in something like dbgcom.c, which has lots and lots in inline 
asm?  FWIW, dbgcom.c has the most occurrences of lcall and ljmp 
instructions, so that's where the macro is needed most at the moment.

---------------------------------------------------------
Peter J. Farley III (pjfarley AT dorsai DOT org OR
                      pjfarley AT banet DOT net)