diff options
| author | Andrey Ignatov <rdna@fb.com> | 2018-10-15 22:50:34 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-10-16 15:16:47 -0700 |
| commit | ab9e084821221b2eda57a512535fe35b49e672d8 (patch) | |
| tree | 024031e7d7cfd5b695d11c5e3617275b5e068e51 /drivers/spi/spi-cadence.c | |
| parent | 421f4292f46e871cdcf8bdc3e6fdfcefe2e81a9d (diff) | |
libbpf: Per-symbol visibility for DSO
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 <rdna@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'drivers/spi/spi-cadence.c')
0 files changed, 0 insertions, 0 deletions