s390x assembly pack: implement OPENSSL_rdtsc as STCKF
authorPatrick Steuer <patrick.steuer@de.ibm.com>
Wed, 7 Feb 2018 17:49:29 +0000 (18:49 +0100)
committerAndy Polyakov <appro@openssl.org>
Tue, 13 Feb 2018 19:34:38 +0000 (20:34 +0100)
commit19308587d4a4fd2886b0ca193ccfc6756d867cb1
tree75e3739e66830db3edd0d2d25e501e2a66a811da
parent97d37b85d4e1a218fdc61dbe0dff3e7c8ff36121
s390x assembly pack: implement OPENSSL_rdtsc as STCKF

.. if avalable. STCK has an artificial delay to ensure uniqueness
which can result in a performance penalty if used heavily
concurrently.

Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5284)
crypto/s390xcpuid.pl