[U-Boot-Users] RFC: hidden environment variables

[Wolfgang Denk]

In message <462D3DD4.2090500 at freescale.com> you wrote:
>
> > If you don't want to break compatibility with  existing  systems  you
> > ill  have  to  maintain a separate list anyway - either in the source
> > code, or in the environment ;-)
> 
> Well, the point behind having hidden variables is that the source code which needs to use 
> a hidden variable can just call _do_setenv() (or whatever) and have it set an environment 
> variable that is hidden.  My preference would be that any variable that starts with a dot 
> (.) is hidden.  That way, the source code doesn't really need to have a separate list.  It 
> just names its variables with a dot.  The rest is automatic.

So far, this is a perfectly legal variable name in U-Boot. You cannot
change the meaning of such names without breaking compatibility  with
existing systems that might use such names.

Best regards,

Wolfgang Denk

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