Sbrk function

The VSTa runtime library does not have sbrk(). There are functions like
alloc_core() and alloc_pages() that I could use to simulate sbrk(). I do not
yet understand the operation of these two functions, partiularly the on-page
control data structure 'chunk'.

The gcc 2.6.2 driver needs sbrk() and I am wondering if anyone has implemented
it, or how to go about replacing it?

-- 
David Koogler (koogler@bedford.progress.com)