[Patch, AVR]: Hack around PR34734

Weddington, Eric Eric.Weddington@atmel.com
Wed Jun 15 14:02:00 GMT 2011


Hi Johann,

I understand your reasoning, but I'm not particularly fond of this hack.

Surely there's a way to fix this correctly without relying on this hack...

Eric Weddington

> -----Original Message-----
> From: Georg-Johann Lay [mailto:avr@gjlay.de]
> Sent: Wednesday, June 15, 2011 3:26 PM
> To: gcc-patches@gcc.gnu.org
> Cc: Weddington, Eric; Anatoly Sokolov; Denis Chertykov
> Subject: [Patch, AVR]: Hack around PR34734
> 
> PR34734 is an annoying, false C++ warning for code like
> 
> const int x __attribute__((progmem)) = 1;
> 
> progmem.c:1:30: warning: only initialized variables can be placed into
> program memory area [enabled by default]
> 
> The problem is that DECL_INITIAL is NULL at the specific point in
> space and time (avr_handle_progmem_attribute) even though tree.def
> promises otherwise.
> 
> The patch hacks around by explicitly querying for C++ front end.
> 
> Johann
> 
> --
> 
> 	PR target/34734
> 	* config/avr/avr.c (avr_handle_progmem_attribute): Hack around
> 	non-present DECL_INITIAL if front end is C++.



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