Re: Small-C revisited

[Harry Kalogirou <harkal@gmx.net>]

Την Τετ, 05-06-2002 στις 20:27, ο/η Alan Cox έγραψε:
 
> Our current binary format is the minix one and has the same design flaw.
> Minix doesn't support swapping so allocates a program data as
> 
> 		Data
> 		<space>
> 		Stack
> 
> And brk()/malloc etc expand into pre-reserved space. Chmem adjusts that
> space. What probably should happen since we do have swap is that we
> allocate
> 
> 		Stack (size configured at compile/link time)
> 		Data
> 
> We can then actually expand the program space if need be. On v7 swap is
> activated at boot up and they basically did
> 
> 		if(room to just grow a bit)
> 			grow_it()
> 		else
> 			swap_it_out()
> 
> and the swap back in would sort out a suitable sized chunk.
> 

That is what I was planning to implement next. I'm currently working on
making an efficient memory defrager but I got bored when the ELKS tree
got uncompilable.

Harry



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