S390: Also check vector support in memmove ifunc-selector [BZ #27511]
commit7759be2593b689cb1eafc0f52ee7f59c639e5d2f
authorStefan Liebler <stli@linux.ibm.com>
Tue, 23 Mar 2021 16:29:26 +0000 (23 17:29 +0100)
committerStefan Liebler <stli@linux.ibm.com>
Fri, 26 Mar 2021 09:51:31 +0000 (26 10:51 +0100)
tree9fe921acd60d3020da8dc14c6ed335ef6e92ae3d
parent1966f47a1e54f962a355a5f6a6b730c9848ab956
S390: Also check vector support in memmove ifunc-selector [BZ #27511]

The arch13 memmove variant is currently selected by the ifunc selector
if the Miscellaneous-Instruction-Extensions Facility 3 facility bit
is present, but the function is also using vector instructions.
If the vector support is not present, one is receiving an operation
exception.

Therefore this patch also checks for vector support in the ifunc
selector and in ifunc-impl-list.c.

Just to be sure, the configure check is now also testing an arch13
vector instruction and an arch13 Miscellaneous-Instruction-Extensions
Facility 3 instruction.
sysdeps/s390/configure
sysdeps/s390/configure.ac
sysdeps/s390/memmove.c
sysdeps/s390/multiarch/ifunc-impl-list.c