[Bug c/13134] [3.4 regression] Visibility attribute is ignored

["austern at apple dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From austern at apple dot com  2003-11-24 06:16 -------
Subject: Re:  [3.4 regression] Visibility attribute is ignored

On Nov 23, 2003, at 7:09 PM, bryner at brianryner dot com wrote:

>
> ------- Additional Comments From bryner at brianryner dot com  
> 2003-11-24 03:09 -------
> (In reply to comment #8)
>> I'm testing a patch right now that copies visibility from old 
>> declarations to
>> new ones, and that allows visibility on new declarations to override 
>> old ones,
>> *but* I'm treating default visibility as just the same as no 
>> visibility
>> declaration.  I don't like the idea of having something that's called 
>> "default"
>> but that gives you different behavior than leaving it out.  That 
>> strikes me as
>> an artifact of the old implementation
>
> Unfortunately, that comes straight from the ELF visibility types.  
> DEFAULT is
> one of these types.  So from that point of view, it should not work any
> differently from the other visibility types.

To some extent it does work differently already: it's what you get if 
you don't
specify something else.  What I find inelegant is the idea that you get 
DEFAULT
either by saying nothing or by explicitly saying visibility("default"), 
but that
saying nothing means a slightly weaker thing than saying it explicitly. 
  I'd
really rather avoid having that if possible.

			--Matt



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13134