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Kernel Recipes 2013 - kconfig-frontends, a packaging of the kconfig parser and frontends
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Kernel Recipes 2013 - kconfig-frontends, a packaging of the kconfig parser and frontends

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The configuration language used by the Linux kernel, known as kconfig, has gained some traction in the community, and is increasingly used by third-party projects. The kconfig-frontends package aims …

The configuration language used by the Linux kernel, known as kconfig, has gained some traction in the community, and is increasingly used by third-party projects. The kconfig-frontends package aims at centralising the effort of keeping an up-to-date, out of the Linux source tree, packaging of the kconfig infrastructure, ready for use by third party projects.

The state of the project will be presented: what has been done so far, and ideas on future evolutions. Some kconfig tips and tricks will also be demonstrated.

Published in: Self Improvement, Technology

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  • 1. Kernel Recipes - September 2013 – kconfig-frontends kconfig-frontends A packaging of the kconfig parser and frontends Yann E. MORIN yann.morin.1998@free.fr http://ymorin.is-a-geek.org/ 2013-09-25 (C) 2013 Yann E. MORIN 1
  • 2. Kernel Recipes - September 2013 - kconfig-frontends Kconfig language overview ➢Configuration description language ➢Simple syntax & grammar ➢Limited number of types ➢booleans, tristates ➢strings, integers ➢Dependency tracking ➢reverse and direct ➢i18n ready (mostly) 2013-09-25 (C) 2013 Yann E. MORIN 2
  • 3. Kernel Recipes - September 2013 - kconfig-frontends Kconfig language overview config FOO bool prompt "FOO device" help Support for FOO device. config FOO_BAR bool "Use BAR of the FOO" depends on FOO select GENERIC_BAR help Support BAR in FOO device. config GENERIC_BAR bool 2013-09-25 (C) 2013 Yann E. MORIN 3
  • 4. Kernel Recipes - September 2013 - kconfig-frontends Kconfig frontends ➢line-oriented 'conf' ➢curses-based 'mconf' and 'nconf' ➢Qt-based 'qconf' ➢GTK-based 'gconf' 2013-09-25 (C) 2013 Yann E. MORIN 4
  • 5. Kernel Recipes - September 2013 - kconfig-frontends Kconfig-frontends ➢Kconfig widely used outside the Linux kernel ➢busybox, uClibc ➢buildroot, PTXdist, openWRT, crosstool-NG ➢QEMU (pending) ➢make it easy for other projects to re-use Kconfig with minimal maintenance burden ➢help them converge to a common set of features 2013-09-25 (C) 2013 Yann E. MORIN 5
  • 6. Kernel Recipes - September 2013 - kconfig-frontends Kconfig-frontends ➢packaged using autotools ➢generates a library with the parser ➢shared by default ➢static optionally ➢builds all five frontends ➢ conf, mconf, nconf, qconf, gconf ➢linked to the parser library ➢builds utilities ➢ diff, merge, tweak, gettext 2013-09-25 (C) 2013 Yann E. MORIN 6
  • 7. Kernel Recipes - September 2013 - kconfig-frontends Kconfig-frontends ➢each frontend optional ➢utils may be ommitted ➢frontends and utils prefixed with kconfig➢set default behaviour ➢default options prefix instead of CONFIG_ ➢default root menu ➢builds on Linux, Cygwin, *BSD 2013-09-25 (C) 2013 Yann E. MORIN 7
  • 8. Kernel Recipes - September 2013 - kconfig-frontends Thank you! Questions? Yann E. MORIN yann.morin.1998@free.fr http://ymorin.is-a-geek.org/ License for this paper: Creative Commons BY-SA 3.0 Source for this paper: http://ymorin.is-a-geek.org/publis/KernelRecipes/2013 2013-09-25 (C) 2013 Yann E. MORIN 8