[PATCH] ARM gas: handle {...} operands in macros

[Jan Beulich]

>>> On 03.06.13 at 17:49, Richard Earnshaw <rearnsha@arm.com> wrote:
> On 28/05/13 20:18, Roland McGrath wrote:
>> Here's another case where the presumptions about whitespace stripping don't
>> mesh with macros quite right.  There may be more cases affected; I didn't
>> try to add test cases for all of them.
>>
>> OK for trunk and 2.23?
> 
> This seems all wrong to me.  If you're having to pretend that all these 
> special characters are symbol characters, then something else must be 
> fundamentally wrong.  That makes this patch a crutch for something else 
> that's broken.
> 
> I think you need to dig further into why macros aren't working properly. 
>   Is it the implementation of macros, the documentation, or your 
> expectations that are wrong?

Others (including me) have done this before - it's an effect of
how the scrubber works, eating whitespace that it thinks isn't
necessary. It's been years back that I looked into that, but iirc
in the end I was told to better leave the scrubber untouched to
not risk breakage elsewhere. So one or the other workaround
needs to be found anyway...

Jan