[U-Boot-Users] Function pointers after relocation

Nye Liu nyet at mrv.com
Thu Jul 3 00:35:56 CEST 2003


Is this at all related to this problem:

http://sourceforge.net/mailarchive/message.php?msg_id=5376039

i.e. env not being copied from flash in relocate() when ENV_IS_EMBEDDED
is set?

On Thu, Jul 03, 2003 at 10:01:46AM +1200, Robin Gilks wrote:
> Wolfgang Denk wrote:
> >
> >This is not correct. The problem is that staticlly  initialized  data
> >(like  initialized function pointers() must be manually relocated. If
> >there is such a thing left pointing to flash, it is a bug and  should
> >be fixed.
> >
> >Which part of the code are you speaking of?
> 
> Opps - a typo in the example!! I meant to say the pointer env_get_char() 
> which is initialised to env_get_char_init and remains pointing at the 
> Flash copy of that function after relocation.
> 
> As it happens I think we have another problem in getting to our 
> environment since the gd->env_ptr value seems to be garbage!! I don't 
> see that running the code from Flash should in itself be a real problem 
> (although undesirable).
> 
> More info later if it's relevent...
> 
> 
> -- 
> Robin Gilks
> Senior Design Engineer              Phone: (+64)(3) 357 1569
> Tait Electronics                          Fax  :  (+64)(3) 359 4632
> PO Box 1645 Christchurch        Email : robin.gilks at tait.co.nz
> New Zealand
> 
> 
> 
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-- 
Nye Liu
nliu at mrv.com
(818) 772-6235x248

"Who would be stupid enough to quote a fictitious character?"
	-- Don Quixote




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