feat: add root frame

Author: not-matthias

google_benchmark/src/benchmark_api_internal.cc

@@ -114,7 +114,7 @@ State BenchmarkInstance::RunInstrumented(
 }
 #endif
 
-State BenchmarkInstance::Run(
+State BenchmarkInstance::__codspeed_root_frame__Run(
     IterationCount iters, int thread_id, internal::ThreadTimer* timer,
     internal::ThreadManager* manager,
     internal::PerfCountersMeasurement* perf_counters_measurement,

google_benchmark/src/benchmark_api_internal.h

@@ -52,7 +52,7 @@ class BenchmarkInstance {
   void Setup() const;
   void Teardown() const;
 
-  State Run(IterationCount iters, int thread_id, internal::ThreadTimer* timer,
+  State __codspeed_root_frame__Run(IterationCount iters, int thread_id, internal::ThreadTimer* timer,
             internal::ThreadManager* manager,
             internal::PerfCountersMeasurement* perf_counters_measurement,
             ProfilerManager* profiler_manager) const;

google_benchmark/src/benchmark_runner.cc

@@ -141,7 +141,7 @@ void RunInThread(const BenchmarkInstance* b, IterationCount iters,
           ? internal::ThreadTimer::CreateProcessCpuTime()
           : internal::ThreadTimer::Create());
 
-  State st = b->Run(iters, thread_id, &timer, manager,
+  State st = b->__codspeed_root_frame__Run(iters, thread_id, &timer, manager,
                     perf_counters_measurement, profiler_manager_);
   BM_CHECK(st.skipped() || st.iterations() >= st.max_iterations)
       << "Benchmark returned before State::KeepRunning() returned false!";