Add benchmark option to run symbol lookup several times.

In general we want to measure two scenarios:
 - Time to do first unwind (including loading overheads).
 - Time per unwind in long term stead state.

Test: unwind_benchmarks
Change-Id: I918373e174dd7c887b065de6765158bba689cab4
1 file changed
tree: d1e143b27417d462628868b8b5085025b3cd5483
  1. libbacktrace/
  2. libunwindstack/
  3. OWNERS
  4. PREUPLOAD.cfg