tree 2b12b26774db3645668a3619feb1018a76494033
parent 585ff01946f016d2af7f724f5f5d2df09c3b620a
author Peter Collingbourne <pcc@google.com> 1586293486 -0700
committer Christopher Ferris <cferris@google.com> 1587021825 -0700

libunwindstack: Add Memory::ReadTag() function for reading memory tags.

This uses an experimental Linux kernel API for reading the tags across
processes using ptrace.

Bug: 135772972

Test: Unit tests pass.
Change-Id: Ib1a09d9219166011de80cf250b756bb8a4bcdb0a