Re: [avr-gcc-list] avr-libc does not have support for, ATxmega16a4u or ATxmega32a4u

[David Fernandez]

Hi Joerg,

Yes, I've finally found the Atmel place where they keep their modified 
tarballs and build script. A pity that they don't contribute the 
patches... I'm thinking in working the patches out by myself (at least 
for binutils and gcc), so that I can use gcc-4.8.2 rather than 4.8.1...

Also, on avarice, playing with the options, I discover that --detach is 
the one that causes that timeout behaviour, otherwise I can connect 
running avr-gdb in another process (xterm window). I'll indicate that to 
the avarice list, see if somebody finds out what could be wrong.

Seems that there is a script in avarice that creates io reg definitions 
for gdb out of a header file in avr-libc. That and copying an existing 
device description in avarice sources, then modifying it by hand seems 
to do the trick for the time being.

Thanks anyway for the context.

Regards
David

----------------------------------------------------------------------

Message: 1
Date: Fri, 14 Feb 2014 09:04:25 +0100 (MET)
From:address@hidden  (Joerg Wunsch)
To:address@hidden
Subject: Re: [avr-gcc-list] avr-libc does not have support for
        ATxmega16a4u    or ATxmega32a4u
Message-ID:<address@hidden>
Content-Type: text/plain; charset=us-ascii

David Fernandez<address@hidden>  wrote:

> Anybody knows if there is a script to create the io files for these two
> processors? or if there is some procedure to create them?

Should be possible, but it's more than the IO header files.  Some #ifdefs
need to be extended, too.

Alas, since the day when Anitha Boyapati has left the Atmel team that
handles the AVR tools, there has not been much contribution back from
Atmel to avr-libc.  Instead, they maintain their own set of patches
(until it will eventually become unmaintainable ...).

> I seem to have problems with avarice, connecting avr-gdb to target and
> it might be that I have to generate the right stuff out of the right
> libc io file using one of the avarice scripts...

I don't think that's going to help much.  I've seen your message to
the AVaRICE list, but didn't have the time to analyze your traces.
Ping me again in case I might forget about it.  (Independently, it
might make sense to file an official bug report.)
-- cheers, Joerg .-.-. --... ...-- -.. . DL8DTL 
http://www.sax.de/~joerg/ Never trust an operating system you don't have 
sources for.