[OE-core] lconfig-native is not endian safe

Kamble, Nitin A nitin.a.kamble at intel.com
Thu Mar 31 02:09:00 UTC 2011



> > I have updated the ldconfig-native to match the version of eglibc
> > 2.12.1, but that still does not solve the endienness problem of cross
> > ppc.
> 
> BTW ldconfig's endienness issue is also for mips & armeb.

Another solution I was thinking of was:
  Use the target ldconfig in qemu shell. (like the glibc locales were generated earlier).
Does it make sense to do it that way, or is it better to just not generate the ld.so.cache?


> 
> >
> > Thanks,
> > Nitin
> >
> >
> > > -----Original Message-----
> > > From: openembedded-core-bounces at lists.openembedded.org
> > > [mailto:openembedded-core-bounces at lists.openembedded.org] On Behalf
> > Of
> > > Mark Hatle
> > > Sent: Wednesday, March 30, 2011 8:44 AM
> > > To: openembedded-core at lists.openembedded.org
> > > Subject: Re: [OE-core] lconfig-native is not endian safe
> > >
> > > On 3/30/11 9:47 AM, Richard Purdie wrote:
> > > > Hi,
> > > >
> > > > Poky has had a ldconfig-native recipe in for a while. Back in the
> > > times
> > > > our RPATHS were totally broken adding in an ld.so.cache was
> useful.
> > > In
> > > > modern times I'm having trouble working out when this would be
> > useful
> > > on
> > > > a standard system as libraries are pretty much always in one of
> the
> > > two
> > > > default search locations.
> > > >
> > > > ldconfig-native is 32/64 bit safe. I've just been looking at PPC
> > and
> > > it
> > > > is certainly not endian safe though. The endianess of the target
> > > system
> > > > need to match that of the build system for it to work. It
> wouldn't
> > be
> > > > much work to make it endian safe though although the codebase
> will
> > > > diverge further from that in (e)glibc though.
> > > >
> > > > Short term we need to disable it at least for ppc, longer term
> what
> > > > should we do?
> > >
> > > On ARM, are the structures packed in the same way as the target
> > system?
> > >
> > > I know I prefer to NOT use ldconfig in the systems I design, but I
> > > understand
> > > why people want it.
> > >
> > > I suggest we disable it on PPC for now, and work on updating endian
> > > support,
> > > (packing if necessary) and make sure that it supports the latest
> > > ldconfig
> > > features of being able to use referenced directories and such.
> > >
> > > --Mark
> > >
> > > > Cheers,
> > > >
> > > > Richard
> > > >
> > > >
> > > > _______________________________________________
> > > > Openembedded-core mailing list
> > > > Openembedded-core at lists.openembedded.org
> > > > http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-
> > core
> > >
> > >
> > > _______________________________________________
> > > Openembedded-core mailing list
> > > Openembedded-core at lists.openembedded.org
> > > http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-
> core
> >
> > _______________________________________________
> > Openembedded-core mailing list
> > Openembedded-core at lists.openembedded.org
> > http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
> 
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core at lists.openembedded.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core




More information about the Openembedded-core mailing list