event_copy 29 tools/perf/lib/include/internal/mmap.h char event_copy[PERF_SAMPLE_MAX_SIZE] __aligned(8); event_copy 55 tools/perf/util/mmap.c void *dst = map->core.event_copy; event_copy 65 tools/perf/util/mmap.c event = (union perf_event *)map->core.event_copy;