[ECOS] Change malloc() heap size

[Francois Retief]

Hello all,

How do I change the size of the heap that malloc() can use to 
allocate memory?  I need to allocate a 256k+ block of memory.
But mallinfo() states that the arena is only 90k in size. 

Using the i386 pc target and the default template.  The program run
from a floppy on a PentiumII motherboard with 64MB RAM.

I changed the ram length in the target.ld file from 0xa0000 to
	ram : ORIGIN = 0, LENGTH = 0x2000000
but mallinfo() returned the same 90k as before. 

Cheers
  Francois Retief


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