pgsql: Add ARM64 (aarch64) support to s_lock.h.

Add ARM64 (aarch64) support to s_lock.h.

Use the same gcc atomic functions as we do on newer ARM chips.
(Basically this is a copy and paste of the __arm__ code block,
but omitting the SWPB option since that definitely won't work.)

Back-patch to 9.2. The patch would work further back, but we'd also
need to update config.guess/config.sub in older branches to make them
build out-of-the-box, and there hasn't been demand for it.

Mark Salter

Branch
------
REL9_2_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/612ecf311bf253cdb0c54252854c5298aa668203

Modified Files
--------------
src/include/storage/s_lock.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

--
Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-committers