Hello Roland, Am Dienstag, 3. September 2019, 14:00:17 CEST schrieb Roland Hieber: > On Tue, Sep 03, 2019 at 01:50:25PM +0200, Alexander Dahl wrote: > > After discussing these topics in IRC, it seemed reasonable to add some > > explanation on how to create a new layer from scratch. > > \o/ someone else did a task on my overlong todo list :D
Yes, and I just saw you already wrote a piece on that topic, but on your website, not in ptxdist documentation: https://pengutronix.de/en/blog/2019-06-18-DistroKitLayer.html o.O > > + > > +Creating a new Layer > > +~~~~~~~~~~~~~~~~~~~~ > > + > > +Adding new layers on top of an already existing BSP is easy: > > + > > +#. Create an empty folder, e.g. next to the existing BSP. > > +#. The lower layer is just a folder named ``base`` (see layers_ above). > > You + may do one of the following (or something else you consider > > convenient): + > > + - Create a symbolic link ``base`` to an outside laying BSP folder. For > > + an easy start, you can try this method with DistroKit_ for example: > > + ``$ ln -s ../DistroKit base`` > > We have done that too sometimes in the past, but if the config files in > the base layer are not in the right versions, the MD5 sum in the config > diffs in the inherited layer will not match. I think this should be > mentioned here. Sorry, I do not understand. :-/ > > + - Use a Git submodule with a BSP in a folder ``base``. > > + - Copy over your whole existing BSP to a new subfolder ``base``. > > Subtree merges are another possibility, although I've never done one. Same here. > > + > > +#. If needed select **ptxconfig** and/or **platformconfig** after copying > > + that file from the lower layer to your new layer: > > + > > +.. code-block:: text > > + > > + $ mkdir -p configs/platform-v7a > > + $ cp base/configs/platform-v7a/platformconfig configs/platform-v7a/ > > + $ ptxdist platform configs/platform-v7a/platformconfig > > I think you should be able to select the config from base/ directly > without copying them? mol? I did not try that. What is possible to select would be indeed an interesting piece in the docs! That question came up multiple times in IRC in the last days. ;-) > > + > > +#. Use ``ptxdist menu`` like usual. > > menuconfig? platformconfig? You reach both from `p menu` … but I don't mind changing this. > > +#. Put your new layer into Git and add configs and delta configs to it. > > nit: s/Git/SCM/, or something like that Yes. So you already wrote on that topic. I wouldn't mind if you take my patch as base for your own additions. O:-) Greets Alex _______________________________________________ ptxdist mailing list ptxdist@pengutronix.de
