Re: [avr-gcc-list] New prosessor goes into stack violation!

[Per Arnold Blåsmo]

E. Weddington wrote:

> On 11 Jan 2005 at 12:37, Per Arnold Blåsmo wrote:
>
>  
>
> > That worked :-)
> > I tried both as an option and changing in avr-gcc. I go for the last option.
> >
> > The code runs now and everything looks good.
> > Maybe the patches to the binutils and avr-gcc should be submitted to the 
> > project. I cant submit the header file for the MCU without Atmel 
> > approving it, but the patches to binutils, avr-gcc and avr-libc should 
> > be OK to submit.
> >    
>
> Any patches to the toolchain (binutils, gcc, avr-libc, etc.) should go into a patch tracker on the 
> avr-libc project.
>
> I'm not quite sure how to handle getting permission from Atmel for adding the secureAVR 
> device to the toolchain.... Usually the header is very clear in showing the register layout, which 
> is a part of the datasheet under NDA.
>
>
>  
>
> > There also is a couple of sections that could be defined for the MCU. I 
> > believed that was done in the linker script, but maybe that can be done 
> > as option to the linker?
> >
> >    
>
> Let us know what works for you.
>
>
> Eric
>
>  
Well, my though was  more like this:

I do not want to break the NDA, so  the header file must probably be 
kept a secret.
If Atmel would allow to release it, it would be nice, but...

The IAR has support for secureAVR processors and I though that it could 
be so also for avr-gcc. The linker script and header file for the IAR 
compiler is given by Atmel on their development CD. If Atmel also 
included these things for avr-gcc, developers would have a choice both 
on development platform and on compiler.

That was my problem when starting this. In my company we work on Linux 
platform and therefor I had no compiler for secureAVR. I had to modify 
avr-gcc to make it work. And now I want to share with the community as 
much as I can without breaking the NDA. Hopefully Atmel also will see 
this as a plus for them?

Of course more testing and verifying must be done before it is 
production quality, but I could publish the patches to the tool chain if 
other would be interested.

Per A.
--
Per Arnold Blåsmo
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