[U-Boot] Weak symbols: request for comments

[Wolfgang Denk]

Dear Sebastien Carlier,

In message <4CD3F58F.8090302 at gmail.com> you wrote:
> 
> It does seem like weak symbols were designed with other uses in mind, 
> such as C++ class members defined within a class declaration, or to weak 
> the dependencies between libraries... but not really to allow 
> overridable definitions (what if two objects want to override the same 
> weak symbol in different ways?).

Well, but that's exactly why they are used in library code: to allow
overridable definitions.

> > Yes. The old-fashioned #define CONFIG_BOARD_INIT_F and friends
> > method. I would prefer that one. Its not beautiful but still
> > widely used and bullet-proof.
> 
> Could you please elaborate?  I have looked for things like this in the 
> code base but I could not find what you are referring to.

Don't bother looking for it. We are happy that we have eliminated a
bit of the #ifdef mess. We will not add it again.

Best regards,

Wolfgang Denk

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