On Mon, Oct 15, 2018 at 10:50:34PM -0700, Andrey Ignatov wrote:
> Make global symbols in libbpf DSO hidden by default with
> -fvisibility=hidden and export symbols that are part of ABI explicitly
> with __attribute__((visibility("default"))).
>
> This is common practice that should prevent from accidentally exporting
> a symbol, that is not supposed to be a part of ABI what, in turn,
> improves both libbpf developer- and user-experiences. See [1] for more
> details.
>
> Export control becomes more important since more and more projects use
> libbpf.
>
> The patch doesn't export a bunch of netlink related functions since as
> agreed in [2] they'll be reworked. That doesn't break bpftool since
> bpftool links libbpf statically.
>
> [1] https://www.akkadia.org/drepper/dsohowto.pdf (2.2 Export Control)
> [2] https://www.mail-archive.com/netdev@vger.kernel.org/msg251434.html
>
> Signed-off-by: Andrey Ignatov <r...@fb.com>
Applied, Thanks
