[ECOS] Re: ecos mem footprint with HTTPD support

[Mandeep Sandhu <mandeepsandhu.chd@gmail.com>]

>
> There is no expansion of the linker-defined sections. Thread-local
> variables are stored on the thread stacks. These stacks are typically
> allocated as static arrays. Some packages use their own
> statically-allocated memory pools. You must decide how large these
> stacks and memory pools need to be where necessary.
>
> If you must use malloc() and related functions, the eCos dynamic memory
> allocation package will allocate memory from the heap. The heap
> typically occupies all remaining RAM above the application code and
> data. Clearly, allocations from the heap are additional to anything
> known to the linker and reported by the "size" tool.
>
>> Say my bss+data+rwdata comes to around 55KB...is it safe to go with a
>> system with 64KB on-chip RAM? Is 9KB margin safe enough?
>
> You need no margin at all if you avoid dynamic memory allocation.
>
> I hope this helps...

Thanks for clearing this. This does help a lot!

Regards,
-mandeep

>
> John Dallaway
>

-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss