Re: [PATCH 1/2] Compiler Attributes: add support for __fallthrough (gcc >= 7.1)

From: Miguel Ojeda
Date: Mon Oct 22 2018 - 08:10:10 EST


On Mon, Oct 22, 2018 at 2:07 PM Luc Van Oostenryck
<luc.vanoostenryck@xxxxxxxxx> wrote:
>
> On Sun, Oct 21, 2018 at 07:14:13PM +0200, Miguel Ojeda wrote:
> >
> > While comment parsing is a good idea to deal with old codebases
> > that used such a comment as documentation for humans, the best
> > solution is to use the attribute:
> >
> > * It is a "real" part of the AST (=> better for tooling).
>
> This will create a problem for the recent versions of sparse which
> support __has_attribute() because sparse falsely pretends to support
> this attribute while, to play nice with -Wdeclaration-after-statement,
> it needs some adaptation to the parsing (it's actually seen not as a
> statement but as a declaration). I'll see to fix it this evening.

No rush Luc! (I have sent the PR to Linus without this two patches for
the moment).

And thanks a lot for having being so quick to improve sparse to
support all these series!

Cheers,
Miguel