[ECOS] Is Redboot run in supervisor mode?
Thu Jan 30 15:36:00 GMT 2003
Grant Edwards wrote:
> On Thu, Jan 30, 2003 at 11:43:20AM -0000, Qiang Huang wrote:
>>When the platform is configured as Redboot startup and load the ecos app
>>into RAM for debugging, what mode is redboot run in? when loading a ecos app
>>(by redboot) , what is the starting mode of the ecos app(e.g. when comes to
>>the entry point of the ecos app: reset_vector) Thanks a lot
> Depends on the architecture. It's generally in some sort of
> system/supervisor mode.
I believe Qiang is on ARM in which case it's supervisor (SVC) mode for
everything. Even on interrupts we switch to SVC mode as soon as we can.
eCosCentric http://www.eCosCentric.com/ <info@eCosCentric.com>
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