Re: [avr-llvm-devel] Interrupt handling

[Borja F. <bor...@gm...>]

It issues a warning, so, it doesn't apply the attribute and it doesn't
abort compilation. I checked gcc and it warns aswell. However i can error
out if it's better, i leave that up to you.

2012/3/6 Weddington, Eric <Eri...@at...>

>
>
> > -----Original Message-----
> > From: Borja Ferrer [mailto:bor...@gm...]
> > Sent: Tuesday, March 06, 2012 11:57 AM
> > To: Weddington, Eric
> > Cc: avr...@li...
> > Subject: Re: [avr-llvm-devel] Interrupt handling
> >
> > I've added some checks to the frontend when setting the
> signal/interrupt
> > attribute that are the following:
> >
> > 1) warn when the attrib is used in things that aren't function
> declarations.
> > 2) warn when the function has arguments
> > 3) warn when the function doesnt return a void
> >
> > If anybody can think of any more checks that are required let me know.
> >
> > Oh, and here are the warning messages printed for cases 2 and 3
> respectively,
> > again, if somebody has a better descriptive string or with better
> english I'll
> > change it:
> >
> > 2) "'%0' attribute only applies to functions with no arguments"
> > 3) "'%0' attribute only applies to functions with a void return type"
> > where %0 is either interrupt or signal
> >
>
> Semantics question: Do you mean that it issues just a *warning*? Or does
> it error out on these?
>