lkml.org 
[lkml]   [2007]   [Feb]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: kbuild question
> > 
> > Sure, on powerpc for some of the embedded sub-architectures you can only
> > select a single board to build for. For a lot of people this is sufficient,
> > however we are moving towards a world where you can easily build in support
> > for multiple boards into a single kernel.
> >
> > I'd like to have it such that if I'm only building support for one board
> > (CONFIG_ONLY_HAVE_ONE, not going to call it that, but for this discussion its
> > sufficient), you get a choice menu from Kconfig enforcing the ability to only
> > select one board. However if !CONFIG_ONLY_HAVE_ONE than you can select
> > multiple boards to build into your kernel.
> >
> > if CONFIG_ONLY_HAVE_ONE is set we can optimize out the runtime checks that get
> > added for handling the multiple board case.
>
> On m68k we have the same problem, but what I'm what I'm considering is to
> add a new mode for choice groups - at least one must be selected and
> kconfig generates the extra information if only one is selected.

How about extendign the current 'option' syntax to do this?
So we could do something like:

choice
prompt "choice prompt"
default VAL_FIRST
option multivalue if !CONFIG_ONLY_HAVE_ONE

config VAL_FIRST
bool "first"

config VAL_SECOND
bool "second"

endchoice

It seems to fit well with how option is used today, and extends current
syntax nicely.

Sam
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-02-18 20:27    [W:0.074 / U:0.568 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site