Hi,
On Fri, Nov 18, 2011 at 5:51 PM, konrad.gaisler <konrad@xxxxxxxxxxx> wrote:
> On 11/18/2011 07:09 PM, Randy Dunlap wrote:
>>
>> (changed linux-config@ to linux-kbuild@xxxxxxxxxxxxxxx)
>>
>> On 11/18/2011 06:16 AM, Konrad Eisele wrote:
>>>
>>> New kconfig command "subsource":
>>> subsource "<kconfig>""<cwd>""<.config>""<title>"<internal_prefix>
>>> <.config_prefix>
>>> Allocates<kconfig> as a configuration subtree using<.config> as the
>>> configuration
>>> file to save and load from.<cwd> is the directory path to switch to for
>>> "source" to
>>> work, "<title>" is the Menu tile of the subtree,<internal_prefix> is a
>>> internal prefix,
>>> and<.config_prefix> is the prefix to append/remove when
>>> saving/loading<.config>.
>>
>> That explains what but not why. You need some justification(s) for such
>> a large patch. Maybe even some example usages.
>
> The patch originated from a buildsystem that uses buildroot and linux.
> Both use Kconfig and the buildsystem itself uses Kconfig. To configure
> a subproject you have to exit the toplevel Kconfig and restart to
> startup a subproject Kconfig, It is even more anoying when looking
> inside buildroot. It has in its turn subprojects uClibc, busybox,
> linux, crosstools-ng which all use Kconfig. The subtree patch
> does make it possible to unify all in one Kconfig.
>
> As an example, apply the patch, then add to <top>/Kconfig the lines:
>
> subsource "arch/sparc/Kconfig" "." ".config_sparc" "SPARC config" SPARC_
> CONFIG_
> subsource "arch/mips/Kconfig" "." ".config_mips" "MIPS config" MIPS_ CONFIG_
>
ETOOMUCHARGUMENT!
I wonder if we could not get all these parameters specified
dynamically in the Kconfig. This would replace the `mainmenu' entry
ala:
config
title "Linux ..."
prefix "CONFIG_"
file .config
endconfig
That way, everytime you parse a tree, you can generate the structure
on-the-fly in a non-intrusive manner.
I have been thinking of doing something like that with a config file,
but doing it in the Kconfig would make much more sense.
Btw, what are you calling "<internal_prefix>" ?
Thanks,
- Arnaud
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