[PATCH v2] drivers: fix symbol exports when map is omitted

[Bruce Richardson]

On Wed, Nov 30, 2022 at 04:02:26PM +0100, David Marchand wrote:
> On Wed, Nov 30, 2022 at 11:44 AM Ferruh Yigit <ferruh.yigit at amd.com> wrote:
> >
> > On 11/30/2022 10:02 AM, David Marchand wrote:
> > > ld exports any global symbol by default if no version script is passed.
> > > As a consequence, the incriminated change let any public symbol leak
> > > out of the driver shared libraries.
> > >
> > > Hide again those symbols by providing a default map file which
> > > unexports any global symbol using a local: * catch-all statement.
> > >
> > > The checks are skipped for this default map file as it is intentionnally
> > > an empty map (see commit b67bdda86cd4 ("devtools: catch empty symbol
> > > maps")) and there is nothing else to check in this map.
> > >
> > > While at it, move Windows specific objects where needed for better
> > > readability.
> > >
> > > Fixes: 7dde9c844a37 ("drivers: omit symbol map when unneeded")
> > > Cc: stable at dpdk.org
> > >
> > > Reported-by: Luca Boccassi <luca.boccassi at microsoft.com>
> > > Signed-off-by: David Marchand <david.marchand at redhat.com>
> > > Tested-by: Ferruh Yigit <ferruh.yigit at amd.com>
> >
> > Tested v2, looks good.
> > 'check-symbol-maps.sh' warning fixed too.
> 
> Thanks Ferruh.
> 
> Bruce / Luca, could you review / confirm it is ok for you?
> 
LGTM, thanks.

/Bruce