Synopsys

kconfig is an isolated packaging of the kernel configuration tools as found in the scripts/kconfig/ directory of the kernel sources.

The purpose is to provide the great functionalities of the kernel configuration mechanism to any project that need application level configuration.

Usage

On can extract kconfig sources and run without installation from his own project directory:

$ cd myproject/ $ kconfig/config.sh manuconfig

As a default the mypoject/Kconfig file must be present for declaring the project configuration. The result is a myproject/config file which can be sources in a shell of makefile script.

Alternatively the call to:

$ kconfig/config.sh menuconfig

can be replaced by a direct call to the kconfig/GNUmakefile:

$ make -f kconfig/GNUmakefile TOPDIR=. SRCDIR=kconfig

Note that all common kernel configuration targets are available, in particular config, menuconfig, nconfig, gconfig, xconfig, defconfig, oldconfig, etc...

Get the list of targets with:

$ kconfig/config.sh help

or

$ make -f kconfig/GNUmakefile help TOPDIR=. SRCDIR=kconfig

References

Ref to buildroot README.buildroot file for the original idea of packaging kconfig.

Ref to kernel.org for actual contributors of kconfig.