[En-Nut-Discussion] generating .elf files for debugging

[José Vallet]

José Vallet wrote:

> Now the problem is that the avr-gcc doesn't accept the dwarf-2 option.
> 
> I use WinAVR, and this uses the following avr-gcc version
> $ avr-gcc -v
> Reading specs from c:\WinAVR\bin\..\lib\gcc-lib\avr\3.3.1\specs
> Configured with: ../configure --prefix=/e/avrdev/install --target=avr 
> --enable-languages=c,c++ --disable-nls --enable-win32-registry=WinAVR
> Thread model: single
> gcc version 3.3.1
> 
> I cannot see the --with-dwarf2 option that I have seen in many places. 
> Could this be the reason?
> 
> If so, could be a solution  to try to recompile avr-gcc under cygwin 
> with --with-dwarf2 option? Any other better suggestion?

Yes, upgrade to Winavr-20050214. Somewhere in the manuals it says:
"This version of the compiler can generate both DWARF2 and stabs 
debugging information."

Now, with the new version of the compiler I get the
"warning: assignment discards qualifiers from pointer target type"
with ethernut-4.0.1. I think I remember to have read once somewhere that 
this is due to some changes in the compiler about warnings generation, 
and that it is solved in new releases of ethernut. But essentially I can 
live with it, (I mean, it is a warning, ugly but just a warning, not a bug)

Am I right? Any suggestion?

Thanks!
José