Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752515Ab1BDWfm (ORCPT ); Fri, 4 Feb 2011 17:35:42 -0500 Received: from xenotime.net ([72.52.115.56]:46161 "HELO xenotime.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752080Ab1BDWfk (ORCPT ); Fri, 4 Feb 2011 17:35:40 -0500 Date: Fri, 4 Feb 2011 14:35:29 -0800 From: Randy Dunlap To: Ulf Magnusson Cc: linux-kbuild@vger.kernel.org, zippel@linux-m68k.org, mmarek@suse.cz, akpm@linux-foundation.org, andrea.gelmini@gelma.net, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH] [ANNOUNCE] kconfig: Kconfiglib: a flexible Python Kconfig parser Message-Id: <20110204143529.f49e92e5.rdunlap@xenotime.net> In-Reply-To: <20110201232750.GA30800@ulf> References: <20110201232750.GA30800@ulf> Organization: YPO4 X-Mailer: Sylpheed 2.7.1 (GTK+ 2.16.6; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4221 Lines: 107 On Wed, 2 Feb 2011 00:27:55 +0100 Ulf Magnusson wrote: > Hi, > > This is the initial release of Kconfiglib: a Python library for > scripting, debugging, and extracting information from Kconfig-based > configuration systems. It can be used to programmatically generate a > .config when the '*conf' tools are too inflexible, to quickly find out > interesting information about a Kconfig configuration such as dependency > relations between symbols and where undefined symbols are referenced, > and in applications that need to parse and extract information from > Kconfig files. > > For a much longer introduction including multiple examples, see > arch/kconfig/kconfiglib.py. > > Have fun! > > Signed-off-by: Ulf Magnusson > --- > Convenience links: > > Documentation, generated from kconfiglib.py with pydoc -w: > http://dl.dropbox.com/u/10406197/kconfiglib.html > > Examples as separate files: > http://dl.dropbox.com/u/10406197/kconfiglib-examples.tar.gz > > > The patch should be preferably be applied to a recent kernel, i.e. Linus's > (2.6.38-rc3 at the time of writing). Due to recent Kconfig changes, the > kconfigtest.py test suite - which compares output character-for-character - > will indicate failure on older (a few months old) kernels versions even though > the outputs are functionally equivalent. > > Documentation/kbuild/kconfig-language.txt | 5 + > Documentation/kbuild/kconfig.txt | 8 + > README | 13 + > scripts/kconfig/Makefile | 26 +- > scripts/kconfig/kconfiglib.py | 3918 +++++++++++++++++++++++++++++ > scripts/kconfig/kconfigtest.py | 396 +++ > 6 files changed, 4365 insertions(+), 1 deletions(-) > create mode 100644 scripts/kconfig/kconfiglib.py > create mode 100644 scripts/kconfig/kconfigtest.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=" 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. Hi Ulf, This is interesting. I just wish I could read it. ;) I'll get over it. 1. It would be really Good to have "make scriptconfig SCRIPT=" and "make iscriptconfig" (similar to above, but shortened) in "make help" output. 2. My first test (using your ex1.py script) failed because I used O=xx64 (build directory): rddunlap@chimera:lnx-2638-rc3> make O=xx64 scriptconfig SCRIPT=~/pkg/kconfiglib/ex1.py GEN /lnx/src/lnx-2638-rc3/xx64/Makefile Traceback (most recent call last): File "/home/rddunlap/pkg/kconfiglib/ex1.py", line 1, in import kconfiglib ImportError: No module named kconfiglib make[2]: *** [scriptconfig] Error 1 make[1]: *** [scriptconfig] Error 2 make: *** [sub-make] Error 2 Does kconfiglib support O=builddir generally? I can't tell that it does (yet) since all ex[1-7].py fail in this manner. It needs to support/allow O=builddir. Thanks. I'll keep looking... --- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code *** -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/