• scripts/perf-counters/src/hardware-counter.cpp
• scripts/perf-counters/src/hardware-counter.h
• scripts/perf-counters/src/jsc-perf.cpp
• scripts/perf-counters/src/perf-counters.cpp
• scripts/perf-counters/src/portability.h
• scripts/perf-counters/src/thread-local.cpp
• scripts/perf-counters/src/thread-local.h