Re: Build of DPDK 20.11.10 is missing some libraries

[David Aldrich <david.aldrich.ntml@gmail.com>]

Hi Bruce and David

Thank you for your helpful answers.

Best regards
David

On Fri, Feb 14, 2025 at 9:07 AM Bruce Richardson
<bruce.richardson@intel.com> wrote:
>
> On Fri, Feb 14, 2025 at 09:30:38AM +0100, David Marchand wrote:
> > Hello,
> >
> > On Thu, Feb 13, 2025 at 6:47 PM David Aldrich
> > <david.aldrich.ntml@gmail.com> wrote:
> > >
> > > I would be grateful for some help please. I am building a 3rd party
> > > application that I believe was linked against DPDK 20.11.10.
> > >
> > > I built this DPDK version using:
> > >
> > > $ meson setup -Dexamples=l2fwd,helloworld build --reconfigure
> > >
> > > When I build the 3rd party application I get link errors:
> > >
> > > /usr/bin/ld: cannot find -lrte_pmd_bond: No such file or directory
> > > /usr/bin/ld: cannot find -lrte_pmd_vmxnet3_uio: No such file or directory
> > > /usr/bin/ld: cannot find -lrte_pmd_i40e: No such file or directory
> > > /usr/bin/ld: cannot find -lrte_pmd_ixgbe: No such file or directory
> > > /usr/bin/ld: cannot find -lrte_pmd_e1000: No such file or directory
> > > /usr/bin/ld: cannot find -lrte_pmd_ring: No such file or directory
> > >
> > > I can see librte_pmd_e1000.a in my build for DPDK 19.11 but not in 20.11.
> > >
> > > Are these libraries supported by 20.11?  If so, how should I build them?
> >
> > Drivers binaries have been renamed during 20.11.
> > See a20b2c01a7a1 ("build: standardize component names and defines").
> >
> > In your dpdk 20.11 build, look for rte_net_e1000.a.
> >
> > (Note that I suspect that this 3rd party application will have more
> > issues than just linking. I suggest you look at the API/ABI changes
> > sections in the v20.11 release notes)
> >
>
> As a general comment, when linking DPDK it is strongly recommend that you
> using pkg-config (or pkgconf) to get the linker libraries and arguments.
> It's not infrequent that new libraries would be added, removed or renamed
> in DPDK, so by using pkgconfig you should always get the correct lib and
> driver list for the DPDK release you are linking against.
>
> Regards,
> /Bruce