linux-kernel - [PATCH v3 2/2] scripts/kconfig/Makefile: add kselftest-mergeconfig

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Date:	Thu, 17 Dec 2015 17:57:53 +0800
From:	Bamvor Jian Zhang <bamvor.zhangjian@...aro.org>
To:	linux-api@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
	shuahkh@....samsung.com, yann.morin.1998@...e.fr,
	khilman@...aro.org, tyler.baker@...aro.org, broonie@...nel.org,
	mpe@...erman.id.au, dvhart@...radead.org,
	Bamvor Jian Zhang <bamvor.zhangjian@...aro.org>
Subject: [PATCH v3 2/2] scripts/kconfig/Makefile: add kselftest-mergeconfig

Add kselftest-mergeconfig to enable the dependencies of kernel
config for all the kselftest testcases. User could call it after
create the kernel configuration(.config), eg:

$ make kselftest-mergeconfig

Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@...aro.org>
---
 scripts/kconfig/Makefile | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index d79cba4..2694638 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -126,6 +126,14 @@ PHONY += tinyconfig
 tinyconfig:
 	$(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
 
+PHONY += kselftest-mergeconfig
+kselftest-mergeconfig: $(obj)/conf
+	$(if $(wildcard $(objtree)/.config),, $(error No .config exists, config your kernel first!))
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
+		-m $(objtree)/.config \
+		$(srctree)/tools/testing/selftests/*/config
+	+$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
+
 # Help text used by make help
 help:
 	@echo  '  config	  - Update current config utilising a line-oriented program'
@@ -151,6 +159,7 @@ help:
 	@echo  '  kvmconfig	  - Enable additional options for kvm guest kernel support'
 	@echo  '  xenconfig       - Enable additional options for xen dom0 and guest kernel support'
 	@echo  '  tinyconfig	  - Configure the tiniest possible kernel'
+	@echo  '  kselftest-mergeconfig - Merge all the config dependencies of kselftest to .config'
 
 # lxdialog stuff
 check-lxdialog  := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
-- 
2.1.4

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