Re: [V4] libselinux: drop dso.h

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On Thu, Mar 5, 2020 at 2:09 PM William Roberts <bill.c.roberts@xxxxxxxxx> wrote:
>
> On Thu, Mar 5, 2020 at 10:12 AM William Roberts
> <bill.c.roberts@xxxxxxxxx> wrote:
> >
> > On Thu, Mar 5, 2020 at 6:42 AM Petr Lautrbach <plautrba@xxxxxxxxxx> wrote:
> > >
> > >
> > > Stephen Smalley <stephen.smalley.work@xxxxxxxxx> writes:
> > >
> > > > On Mon, Mar 2, 2020 at 11:41 AM <bill.c.roberts@xxxxxxxxx> wrote:
> > > >> [PATCH v4 1/4] dso: drop hidden_proto and hidden_def
> > > >> [PATCH v4 2/4] Makefile: add -fno-semantic-interposition
> > > >> [PATCH v4 3/4] Makefile: add linker script to minimize exports
> > > >> [PATCH v4 4/4] libselinux: drop symbols from map
> > > >
> > > > This looks fine to me but I'd like at least one of the distro
> > > > maintainers to ack it (especially the last one).
> > >
> > > Acked-by: Petr Lautrbach <plautrba@xxxxxxxxxx>
> > >
> >
> > Thanks staged:
> > https://github.com/SELinuxProject/selinux/pull/205
>
> merged.

I've noticed a change since this was applied; if I build userspace
against the updated libselinux, the dynamic loader will
print a warning if it is run on a system with the older libselinux, ala:
$ /sbin/restorecon -v /etc
/sbin/restorecon: /lib64/libselinux.so.1: no version information
available (required by /sbin/restorecon)
It still works since there was no real change in the ABI but I don't
know if this is a concern for distros.



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