Extern or forward variable declaration tools/perf/util/arm-spe.h, line 21 [usage...] tools/perf/util/auxtrace.h, line 22 [usage...] tools/perf/util/bpf-event.h, line 16 [usage...] tools/perf/util/cs-etm.h, line 13 [usage...] tools/perf/util/header.h, line 114 [usage...] tools/perf/util/intel-bts.h, line 27 [usage...] tools/perf/util/intel-pt.h, line 36 [usage...] tools/perf/util/kvm-stat.h, line 13 [usage...] tools/perf/util/s390-cpumsf.h, line 13 [usage...] tools/perf/util/stat.h, line 202 [usage...] tools/perf/util/synthetic-events.h, line 20 [usage...] tools/perf/util/time-utils.h, line 27 [usage...] tools/perf/util/tool.h, line 9 [usage...] tools/perf/util/top.h, line 17 [usage...] tools/perf/util/trace-event.h, line 69 [usage...] Structure tools/perf/util/session.h, line 23 [usage...]