Re: [avr-llvm-devel] Interrupt handling

[Weddington, E. <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?