bget integration for uClinux

[Matt Johnston]

Hi Farrell,

If the changes are fairly unobtrusive, I think it might be
worth including. Do you have a patch handy?

Cheers,
Matt

On Sat, May 30, 2009 at 03:11:13PM -0400, Farrell Aultman wrote:
> I discovered that dropbear, especially when using libz for
> compression/decompression, causes memory fragmentation in uClinux - to the
> point that the system doesn't have enough contiguous memory to continue to
> function after ~24 hours.  This will be a problem for any system that
> doesn't have an MMU.  Normally, programs specifically targeted for uClinux
> will allocate all memory statically and the program itself will load execute
> in place (EIP) from a romfs.
> 
> Thankfully, dropbear has wrapper functions for malloc and related calls that
> can easily be replaced globally.  I have integated the bget memory manager
> with dropbear.  Dropbear will initially get a large chunk of system memory,
> then all future memory allocations are handled by bget, resulting in no
> system memory fragmentation.  I also use bget for libtommath and
> libtomcrypt.  I'm posting this to see if there is any interest in a patch
> with bget integration.  If not, this e-mail can serve as a search result for
> someone to make a request in the future.
> 
> Farrell