Re: Revised patch for IA64 -mb-step option

[Zack Weinberg <zack at codesourcery dot com>]

Jim Wilson <wilson@specifixinc.com> writes:

> On Tue, 2004-04-13 at 17:54, Zack Weinberg wrote:
>> not helping anything.  The new behavior is to silently ignore all
>> unrecognized -m options, and complain about all other unrecognized
>> options,
>
> I looked at all gas target ports, and I see none that do this.  I
> understand why you want to do this, to avoid gcc/gas synchronization
> problems, but this does not appear to be the right solution.  It appears
> to violate established gas conventions.  It also may result in silent
> problems with gcc/gas option passing if gas silently ignores options it
> doesn't understand.  The existing convention seems to be to require
> people to update gas in sync with gcc if they want to use new options. 
> This can be inconvenient at times, but does seem to be workable.

Ok.  I will change this in the next revision of the patch.

> Having just looked at all gas ports, I would say the convention is that
> md_parse_option must call as_bad (or as_warn) for unrecognized options
> before returning 0.
>
> For IA-64, it is simpler to just take m out of md_shortops, as you have
> done all of the work of moving everything else to md_longopts.

Indeed, that is the only reason why m is in md_shortops.

zw