Re: [avr-chat] binutils, gcc and avr-libc versions

[Bob von Knobloch]

On 29/04/13 23:13, Joerg Wunsch wrote:
> Bob von Knobloch <address@hidden> wrote:
>
> > Thanks for the explanation Joerg, are there any docs about this
> > change?
>
> You mean, about the __flash address space?
>
> I think Johann has been thoroughly documenting his changes and
> additions.  Yes, look here:
>
> http://gcc.gnu.org/onlinedocs/gcc/Named-Address-Spaces.html
>
> > My original question is still, however, if there is a 'preferred'
> > release of binutils & gcc with which to build avr-gcc, or should we
> > always look for the latest versions?
>
> Well, the "latest stable version", I'd say.  Due to all of Johann's
> work, I'd strongly recommend using at least GCC 4.7.2 (but 4.7.3 has
> been released meanwhile, too).  Of course, 4.8.0 is still rather new,
> so there's probably not much experience around about it.
>
> For the binutils, I think the latest version is always a good choice,
> as they are relatively stable (in terms of the AVR target) anyway.
OK, maybe I shouldn't have gone for gcc 4.8.0 but the gcc website wants 
sell it as 'released' (they don't use the word 'stable' at all AFIK.
I've been following the flash address stuff, I suppose it's time to take 
it seriously :=)

It's not avr, it's gcc, but do you know where I can find the docs for 
gcc that explain this 'picky' new behaviour of requiring 'const' ? (Yes, 
I have trawled the gcc website, but haven't found anything.) This is in 
case there is an option to relax it , which would save me many hours of 
rewriting code.

Cheers,

Bob
--
The Sun is out, the sky is blue, it's time to drive the MR2.