From: Baruch Siach <baruch@tkos.co.il>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH] Linux kernel: add support for config fragment files
Date: Tue, 10 Feb 2015 23:16:51 +0200 [thread overview]
Message-ID: <20150210211651.GC32404@tarshish> (raw)
In-Reply-To: <54DA7398.9090707@je-eigen-domein.nl>
Hi Floris,
On Tue, Feb 10, 2015 at 10:09:44PM +0100, Floris Bos wrote:
> On 02/10/2015 08:19 PM, Baruch Siach wrote:
> >On Tue, Feb 10, 2015 at 02:50:21PM +0100, Floris Bos wrote:
> >>Adds configuration option to merge additional kernel configuration files
> >>to the main kernel configuration using scripts/kconfig/merge_config.sh
> >>
> >>For use-cases in which it is desired to build a custom Linux kernel based on
> >>the defconfig of the target device, but with a couple extra options/modules
> >>enabled.
> >>
> >>Signed-off-by: Floris Bos <bos@je-eigen-domein.nl>
> >>---
> >[...]
> >
> >>@@ -178,6 +179,8 @@ define LINUX_CONFIGURE_CMDS
> >> $(INSTALL) -m 0644 $(KERNEL_SOURCE_CONFIG) $(KERNEL_ARCH_PATH)/configs/buildroot_defconfig
> >> $(TARGET_MAKE_ENV) $(MAKE1) $(LINUX_MAKE_FLAGS) -C $(@D) buildroot_defconfig
> >> rm $(KERNEL_ARCH_PATH)/configs/buildroot_defconfig
> >>+ $(if $(LINUX_KERNEL_CONFIG_FRAGMENTS),
> >>+ $(@D)/scripts/kconfig/merge_config.sh -m -O $(@D) $(@D)/.config $(LINUX_KERNEL_CONFIG_FRAGMENTS))
> >The merge_config.sh script is in the kernel since version 3.3. The -O
> >parameter is only supported since v3.9. How do you handle older kernels?
>
> Could make it use the merge_config.sh we have in buildroot (in
> support/kconfig) instead, if support for old kernel versions is a
> requirement.
Sounds better, IMO. You may also consider going one further step, and add this
feature to the generic kconfig infrastructure.
baruch
--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
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next prev parent reply other threads:[~2015-02-10 21:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-10 13:50 [Buildroot] [PATCH] Linux kernel: add support for config fragment files Floris Bos
2015-02-10 19:19 ` Baruch Siach
2015-02-10 21:09 ` Floris Bos
2015-02-10 21:16 ` Baruch Siach [this message]
2015-02-14 9:01 ` Thomas Petazzoni
2015-02-14 13:47 ` Floris Bos
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