[yocto] is there a known issue with how SRC_URI uses OVERRIDES to locate .scc files?

[Bruce Ashfield]

On Wed, Apr 20, 2016 at 6:37 PM, Robert P. J. Day <rpjday at crashcourse.ca>
wrote:

> On Wed, 20 Apr 2016, Bruce Ashfield wrote:
>
> > You haven't supplied your SRC_URI in the question ... what does it
> > look like ?
> >
> > It has no relation to the SRC_URI, probably a run of the mill bug in
> > the processing code. I'd suggest taking it up with Wind River
> > support.
> >
> > Alternatively, if you have this somewhere that I clone and launch a
> > test build, I can help you out .. but I won't be able to easily
> > reproduce that situation from scratch.
>
>   ok, i found what appears to be a cheap workaround for this, and i'm
> curious if this makes any sense.  recall original kernel recipe
> directory structure:
>
>   linux-windriver/
>     uio.*
>     ssd.*
>     mxeiii/
>       mm.*
>
> when SRC_URI mentioned only that first-level stuff (uio, ssd), then
> the configure step worked fine. but as soon as i added the mm.scc file
> to SRC_URI, it just seems that any descent into a lower-level
> directory based on OVERRIDES totally bones the search process. so, i
> wondered, how can i work around this?
>
>   oh, wait, no problem. see, all target boards are powerpc, so
> "powerpc" is one of the possible OVERRIDES. obviously, there is no
> *actual* value in using an OVERRIDE for which *every* *single* *board*
> is compatible ... oh, wait, there is.
>
>   so i restructured:
>
>   linux-windriver/
>     mxeiii/
>       mm.*
>     powerpc/
>       uio.*
>       ssd.*
>
> it looks idiotic to take the uio.* and ssd.* content, which should be
> generic, and deliberately put it in a subdirectory, unless that
> subdirectory represents an OVERRIDE which matches every board and, ta
> da, solves the problem.
>
>   i need a drink.


Following up to the list. I was able to take a reproducer for this and
indeed find some *really*
old code that didn't handle a trailing / properly. The end result was the
inability to find the
configuration fragments that were not in subdirectories.

Amazing ability to shoot through corner cases and trigger the problem.

I've made the minor tweak to the processing and will let it soak for a bit
.. but this should
now be solved.

.. now I need a drink.

Bruce


>


> rday
>
> --
>
> ========================================================================
> Robert P. J. Day                                 Ottawa, Ontario, CANADA
>                         http://crashcourse.ca
>
> Twitter:                                       http://twitter.com/rpjday
> LinkedIn:                               http://ca.linkedin.com/in/rpjday
> ========================================================================
>
>
>


-- 
"Thou shalt not follow the NULL pointer, for chaos and madness await thee
at its end"
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