Re: [Uclinux-dist-devel] Re: [PATCH] Blackfin arch: add some missingsyscall

[Bernd Schmidt]

Bryan Wu wrote:
> > > but mremap doesn't -- there's even an implementation in mm/nommu.c.
> > > Could you check the rest of these over to see if they truly don't need
> > > to be implemented for no-mmu?
> > you're right we want mremap, my fault
>
> Yes, I do think so, both sys_mremap and sys_munmap are implemented in
> mm/nommu.c. How do think of this, Bernd?

There's a mremap in nommu.c, but it doesn't do a lot that is useful. 
With some further mm changes in our tree, it's little more than a fancy 
way of saying munmap, and uClibc does not use it, so there's no 
compelling need to have it in userspace.


Bernd
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