[U-Boot-Users] RFC: hidden environment variables
wd at denx.de
Tue Apr 24 01:52:20 CEST 2007
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.
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