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

David Marchand david.marchand at redhat.com
Wed Nov 30 16:02:26 CET 2022


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?


-- 
David Marchand



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