Framework: Lock inversion checker

Add an agent-based lock inversion checker. The agent will dynamically
rewrite bytecode to inject calls to LockHook, which runs a checker
on these.

Implement a simple on-thread checker that keeps a per-thread stack
of locks and a global map of lock ordering. As-is, transitivity of
checks is not guaranteed, but should be captured in most practical
cases.

To run a process with the lock checker, start the process with the
agent. The helper script start_with_lockagent.sh can be used for this:

  adb shell setprop wrap.pkg-name script start_with_lockagent

Bug: 124744938
Test: manual
Change-Id: Idd9a7066a5b8cb8c0de2e995f08759c98d9473e1

0 files changed, 0 insertions, 0 deletions