[U-Boot-Users] Non-static global variables cause relocation to fail

[Wolfgang Denk <wd@denx.de>]

In message <485AA905.9030907@freescale.com> you wrote:
> I tried to find documentation on this, but couldn't.
> 
> I've discovered, on PowerPC 85xx systems at least, that the mere presence of a
> non-static global variable, even if it isn't used by any code, will cause
> relocation to fail.  Exactly how it fails, I can't say, but U-Boot does hang.
> 
> If I make the global variable static, the problem goes away.  Note that I have
> no code that actually references the variable.  It just sits there, occupying space.
> 
> Fortunately, the data structure doesn't need to be non-static.  I just forgot to
> put 'static' in its definition.  Of course, it would have been nice to know this
> up front.
> 
> Can someone explain why this is the case?  Do I need to do anything special in
> my code to access global variables, static or not static?

You  don't  seriously  expect  any  real  help  given  such  a  vague
description?  It  would be somewhat helpful if you said exactly which
changes cause the code to work or fail...

Best regards,

Wolfgang Denk

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