[ECOS] Re: ECOS porting on leon

John Dallaway john@dallaway.org.uk
Tue Jul 21 21:36:00 GMT 2009


Hi Deepak

mishrad@uci.edu wrote:

> While compiling and linking hello world program on ecos ported on leon, I get
> the following-
> 
> gnutools/sparc-elf-3.4.4/bin/../lib/gcc/sparc-elf/3.4.4/../../../../sparc-elf/bin/ld:
> error: no memory region for loadable section '.ram_vectors'
> collect2: ld returned 1 exit status
> 
> There are some old threads dedicated to it. My problem is exactly the same
> as in the below mentioned thread.
> 
> http://www.sourceware.org/ml/ecos-discuss/2006-05/msg00220.html
> 
> Anybody knows how to fix it?

The leon port has not been touched in a long time. It looks like you
will need to add a call to SECTION_ram_vectors() in the leon linker
script file:

   hal/sparc/leon/current/include/pkgconf/mlt_sparc_leon_ram.ldi

Compare this with the equivalent linker script file for the sleb target:

   sparclite/sleb/current/include/pkgconf/mlt_sparclite_sleb_ram.ldi

Please submit a patch when you get this working.

John Dallaway

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