Re: The coreutils-native race...

[Koen Kooi <k.kooi@student.utwente.nl>]

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On 25-04-10 21:57, Tom Rini wrote:
> On Sun, 2010-04-25 at 21:28 +0200, Koen Kooi wrote:
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>> On 25-04-10 19:48, Tom Rini wrote:
>>> Hey all.  I thought I would try and explain what Chris has been up to
>>> with at least some of the base.bbclass changes (the ones related to
>>> md5sum and cp).
>>>
>>> Right now, with a big enough BB_NUM_THREADS we can get into a race where
>>> coreutils-native is installing programs and elsewhere we are in a
>>> do_fetch and either trying to use 'cp' or 'md5sum', and blam, we try and
>>> invoke the program while it's being installed (and see things like
>>> sh: /path/to/staging/i686-linux/usr/bin/cp: Textfile is busy).
>>>
>>> There's a few ways out of this:
>>> 1) Don't rely on 'cp' and 'md5sum' anymore but use python for it.
>>> 2) Make an oe_cp and oe_md5sum to go with oe_sha256sum
>>> 3) IIRC, the big part of coreutils-native was a fully functional,
>>> always, 'install'.  We could just copy the install we build or provide
>>> an install wrapper (oe_install) or so
>>> 4) ???
>>
>> Even thought I loathe python, option 1 sounds like a nice way to go
>> since it doesn't involve butchering recipes.
> 
> I think we're OK, except in the case of when we can't rely on a built-in
> md5sum (and then the race comes back) and just need to figure out if the
> libpam-base-files recipe does things (a) optimally and (b) if that's a
> common thing.
> 
> Currently, with a quick glance at the recipe, I don't see any
> distro-specific overrides, so I'd be inclined to call it lazy recipe
> writing, until someone points out history of why that's a good thing..

I have no problem with changing the libpam-base-files SRC_URI to

file://pam.d/

or

file://foo.pam \
file://bar.pam \
...
etc

But I would like to see it documented in the OE manual that file://dir/*
can't be used, and why.

regards,

Koen
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