tree 7e20b2f3c43f34dfca3e2c2131ccc9074f5c09c1
parent 2a8bca749533dcefabff497d4f7346a35601a702
author Peter Collingbourne <pcc@google.com> 1574211649 -0800
committer Peter Collingbourne <pcc@google.com> 1574213262 -0800

Issue a prctl to let the kernel accept tagged pointers in syscall arguments.

This is a no-op (kernel returns -EINVAL) if the kernel doesn't understand
the prctl.

Bug: 144799191
Change-Id: I8708e92e31d7a60b2847ae2bc242e46dafb77680