From mboxrd@z Thu Jan 1 00:00:00 1970 From: Floris Bos Date: Tue, 10 Feb 2015 22:09:44 +0100 Subject: [Buildroot] [PATCH] Linux kernel: add support for config fragment files In-Reply-To: <20150210191953.GA32404@tarshish> References: <1423576221-24249-1-git-send-email-bos@je-eigen-domein.nl> <20150210191953.GA32404@tarshish> Message-ID: <54DA7398.9090707@je-eigen-domein.nl> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net 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 >> --- > [...] > >> @@ -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. Yours sincerely, Floris Bos