perf_event_ksymbol 1172 include/linux/perf_event.h extern void perf_event_ksymbol(u16 ksym_type, u64 addr, u32 len, perf_event_ksymbol 8038 kernel/events/core.c perf_event_ksymbol(PERF_RECORD_KSYMBOL_TYPE_BPF, perf_event_ksymbol 8046 kernel/events/core.c perf_event_ksymbol(