Re: gas 2.16 and assembly macros -- entry_64.S build failure

[Avi Kivity <avi@redhat.com>]

  On 10/04/2010 05:43 PM, H. Peter Anvin wrote:
> On 10/04/2010 03:04 AM, Avi Kivity wrote:
> >   On 10/01/2010 02:26 AM, H. Peter Anvin wrote:
> >>  ... but that doesn't work with the macros like movq_cfi.  On those, we
> >>  could argue that at least people won't put $ on them, but cpp will still
> >>  split them apart with spaces; this apparently causes problems at least
> >>  as soon as there is an expression more complicated than addition
> >>  involved (apparently plus signs are okay, but minus signs aren't!)
> >
> >  Likely due to the fact that a minus sign can later join with a number
> >  and become a new token, but a plug sign cannot.
> >
>
> ... except the same thing applies to other operators, other than the
> plus sign.  This kind of characterization is insanely frustrating, and
> really doesn't seem to follow logical rules ... we had a previous one
> where changing a macro name from upper case to lower case made gas 2.16
> work...
> 	

Well, / and * do join.  % doesn't.  In a way, + does.

cpp is not a pure text processing language.  It's specifically geared to 
C, and is fairly creaky when applying it to something other than C (and 
is only somewhat creaky when applying it to C).

-- 
error compiling committee.c: too many arguments to function