[OE-core] [PATCH 1/2] sstatesig: include native/cross/nativesdk deps in target signatures
Martin Jansa
martin.jansa at gmail.com
Mon Jan 27 15:53:19 UTC 2014
On Mon, Jan 27, 2014 at 02:51:15PM +0000, Richard Purdie wrote:
> On Sat, 2014-01-18 at 15:02 +0100, Martin Jansa wrote:
> > * I don't have any real evidence or good statistics for this, but when
> > comparing signature dumps from my big bitbake world builds I usually
> > see a lot of rebuilds caused by changes in .bbclasses and only very
> > rare would be the case where oe-core upgrade brings changes in -native
> > recipes and no change in .bbclasses used from target recipes
> > * changing the default to include them shouldn't cause significant
> > increase in rebuilds and sstate reuse a bit safer
> > * people working on toolchain (e.g. using gcc from AUTOREV) can easily
> > extend sstate_rundepfilter to ignore them again (it's easier than
> > removing existing filter), example how add own signature handler in
> > your layer is here:
> > https://github.com/openwebos/meta-webos/commit/9ac3a7c803e7793b3274e4998f167b6278db8042
> >
> > Signed-off-by: Martin Jansa <Martin.Jansa at gmail.com>
> > ---
> > meta/lib/oe/sstatesig.py | 4 ----
> > 1 file changed, 4 deletions(-)
>
> Whilst I merged this, we do have a problem here. This change means that
> the sstate is locked to the build system architecture.
>
> For example, if you have a 32 bit machine, it can't use any of the
> sstate built on a 64 bit machine and vice versa.
>
> I'm not sure what we do about this but its a problem...
Agreed, that's bad, I was testing it in setup where we publish the
sstate archive from the builder with the same architecture and have
similar setup building just -native recipes on 32bit for 32bit devs.
So this problem should have hit us as well, I'll recheck.
> Cheers,
>
> Richard
>
> > diff --git a/meta/lib/oe/sstatesig.py b/meta/lib/oe/sstatesig.py
> > index 3011f16..8b0e344 100644
> > --- a/meta/lib/oe/sstatesig.py
> > +++ b/meta/lib/oe/sstatesig.py
> > @@ -36,10 +36,6 @@ def sstate_rundepfilter(siggen, fn, recipename, task, dep, depname, dataCache):
> > if isPackageGroup(fn):
> > return False
> >
> > - # Drop native/cross/nativesdk dependencies from target recipes
> > - if isNative(depname) or isCross(depname) or isNativeSDK(depname):
> > - return False
> > -
> > # Exclude well defined machine specific configurations which don't change ABI
> > if depname in siggen.abisaferecipes and not isImage(fn):
> > return False
>
>
--
Martin 'JaMa' Jansa jabber: Martin.Jansa at gmail.com
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