commit 36c233be062c877f57495916b435be7ea8faeec4
author Yabin Cui <yabinc@google.com> Wed Oct 27 14:45:08 2021 -0700
committer Yabin Cui <yabinc@google.com> Thu Oct 28 22:47:37 2021 +0000
tree 07a7ac5ed1c66ac011ff4223421c51635deb59e0
parent 3b0025c066151417513fc5b4c7742f916952c2b4

simpleperf: detect hardware counters on emulators.

We may run arm64 tests on emulators, which may not have hardware
counters. So use fingerprint to check if we are running on an emulator,
and dynamically detect if hardware counters are available.

Bug: 202840384
Bug: 191278807
Test: run CtsSimpleperfTestCases on emulators.

Merged-In: I3b6ea439e72188d5b4cf23662b0ee00bfa3b28cd
Change-Id: I3b6ea439e72188d5b4cf23662b0ee00bfa3b28cd
(cherry picked from commit 8c426d91c940ddfdb480dec9369a21f1c6907bc9)