SPARC linker command files

[Sebastian Huber]

On 2013-12-03 10:13, Jiri Gaisler wrote:
>
> On 12/03/2013 08:46 AM, Sebastian Huber wrote:
>> >On 2013-12-02 23:06, Jiri Gaisler wrote:
>>> >>
>>> >>On 11/30/2013 02:31 AM, Gedare Bloom wrote:
>>>>> >>> >Does the NGMP allow for variant sizes of ROM and RAM? If so will we
>>>>> >>> >provide separate BSP variants for all possibilities, or how does the
>>>>> >>> >user select the right size for their board?
>>> >>The boot loader (or gdb debug monitor) supplies the top-of-stack
>>> >>address in %sp when the RTEMS binary is called. The area between
>>> >>the start address and %sp indicates the size of RAM to be used.
>>> >>In this way only one bsp is needed.
>> >
>> >Ok, good to know.  Then this symbols should probably go away.  Is the boot loader always the same?
>
> The most common loader is generated by the mkprom2 PROM builder. The loader
> sets up system specific things like memory controllers, timers and UARTs.
> It the calls the RTEMS (or other eg. linux) binary with the top-of-RAM
> in %sp.
>
> The simulator (TSIM) and grmon debug monitor does the same thing as
> the loader before launching the binary.

The startup code also assumes a valid stack pointer for CPU0.  So what is the 
purpose of the global symbols?  Why not use the boot loader provided values we 
already rely on?

-- 
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
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