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--- a/Documentation/kbuild/kconfig-language.txt
+++ b/Documentation/kbuild/kconfig-language.txt
@@ -381,3 +381,8 @@ config FOO
limits FOO to module (=m) or disabled (=n).
+Kconfiglib
+~~~~~~~~~~
+If you need to programmatically generate a .config or parse Kconfig files,
+Kconfiglib might come handy. See 'scriptconfig' and 'iscriptconfig' in
+'make help' and scripts/kconfig/kconfiglib.py.
diff --git a/Documentation/kbuild/kconfig.txt b/Documentation/kbuild/kconfig.txt
index cca46b1..73cf58f 100644
--- a/Documentation/kbuild/kconfig.txt
+++ b/Documentation/kbuild/kconfig.txt
@@ -195,4 +195,12 @@ Searching in gconfig:
however, gconfig does have a few more viewing choices than
xconfig does.
+======================================================================
+scriptconfig
+--------------------------------------------------
+
+If you need to programmatically generate a .config or parse Kconfig files,
+Kconfiglib might come handy. See 'scriptconfig' and 'iscriptconfig' in
+'make help' and scripts/kconfig/kconfiglib.py.
+
###
diff --git a/README b/README
index 1b81d28..bb5e68f 100644
--- a/README
+++ b/README
@@ -196,6 +196,19 @@ CONFIGURING the kernel:
values to 'n' as much as possible.
"make randconfig" Create a ./.config file by setting symbol
values to random values.
+ "make scriptconfig SCRIPT=<path to script>" Run a Kconfiglib
+ script (see scripts/kconfig/kconfiglib.py). This
+ can be used to programatically generate a
+ ./.config, and for applications that need to
+ extract information from Kconfig files.
+ "make iscriptconfig" Launch an interactive Python shell
+ for running Kconfiglib on the architecture's
+ Kconfig configuration. The kconfiglib and sys
+ (for sys.argv[1] - the base Kconfig file) modules
+ will be imported automatically, and a Config
+ instance 'c' will be created for the architecture
+ (using c = kconfiglib.Config(sys.argv[1])).
+
You can find more information on using the Linux kernel config tools
in Documentation/kbuild/kconfig.txt.
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 368ae30..0044933 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -3,7 +3,7 @@
# These targets are used from top-level makefile
PHONY += oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config \
- localmodconfig localyesconfig
+ localmodconfig localyesconfig scriptconfig iscriptconfig kconfiglibtestconfig
ifdef KBUILD_KCONFIG
Kconfig := $(KBUILD_KCONFIG)
@@ -33,6 +33,30 @@ silentoldconfig: $(obj)/conf
$(Q)mkdir -p include/generated
$< --$@ $(Kconfig)
+ifneq ($(filter scriptconfig iscriptconfig,$(MAKECMDGOALS)),)
+PYTHONCMD ?= python
+endif
+
+scriptconfig:
+ $(Q)if [ ! -n "$(SCRIPT)" ]; then \
+ echo 'No script argument provided; use "make scriptconfig SCRIPT=<path to script>".'; \
+ else \
+ PYTHONPATH="$(srctree)/$(src):$$PYTHONPATH" \
+ "$(PYTHONCMD)" "$(SCRIPT)" $(srctree)/$(Kconfig); \
+ fi
+
+iscriptconfig:
+ $(Q)PYTHONPATH="$(srctree)/$(src):$$PYTHONPATH" "$(PYTHONCMD)" -i -c \
+ "import kconfiglib; \
+ import sys; \
+ c = kconfiglib.Config(sys.argv[1]); \
+ print \"A Config instance 'c' for the architecture ({0}) has been created.\".format(c.get_arch())" \
+ $(srctree)/$(Kconfig)
+
+# Used by kconfigtest.py to prevent an 'option defconfig' .config from being loaded
+kconfiglibtestconfig: $(obj)/conf
+ $(Q)$< --defconfig=.config $(srctree)/$(Kconfig)
+
# if no path is given, then use src directory to find file
ifdef LSMOD
LSMOD_F := $(LSMOD)
@@ -139,6 +163,8 @@ help:
@echo ' randconfig - New config with random answer to all options'
@echo ' listnewconfig - List new options'
@echo ' oldnoconfig - Same as silentoldconfig but set new symbols to n (unset)'
+ @echo ' scriptconfig - Run a kconfiglib script (see scripts/kconfig/kconfiglib.py)'
+ @echo ' iscriptconfig - Launch interactive Python shell for using kconfiglib'
# lxdialog stuff
check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
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