Can one BSP support multiple memory maps?

[Joel Sherrill]

Yes. :)

The gen68360 is a nice example.  I recall it not only
has a ROM and RAM selection option in the bsp_specs, I
think it has a way to let the user completely override
the defaults.

FYI I recall some user mentioning a trick to avoid 
duplicating info between the two linker scripts.  Something
about setting values and including a base linker script.
Who was that? 

--joel

Phil Torre wrote:
> 
> Background:  RTEMS 4.5.0 (not multilib'd) with a custom BSP for our
> MPC860 board.
> 
> Our product supports two different memory configurations (one with
> 8 megabytes of RAM and one with 16); the application code knows at
> compile time which memory configuration it is targeting.
> Can I have two different sets of linkcmds for the application code
> without splitting my BSP into two different BSPs?  (That is, two
> BSPs that differ only in their memory map.)
> 
> The only changes needed between the two configurations are the heap
> size/location and the start address for the text section.  I hope I
> can do this with a single BSP.
> 
> Thanks all,
> -Phil
> 
> --
> 
> =====================================================================
> Phil Torre                               phone: 425-820-6363 x234
> Design Engineer                          email: ptorre at zetron.com
> Switching Systems Group                    fax: 425-820-7031
> Zetron, Inc.                               web: http://www.zetron.com
> 
> 

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel at OARcorp.com                 On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
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