perf_event__fprintf_auxtrace_error 1227 tools/perf/util/auxtrace.c 	perf_event__fprintf_auxtrace_error(event, stdout);
perf_event__fprintf_auxtrace_error  539 tools/perf/util/auxtrace.h size_t perf_event__fprintf_auxtrace_error(union perf_event *event, FILE *fp);