syscalls_sys_enter 42 tools/perf/examples/bpf/augmented_raw_syscalls.c bpf_map(syscalls_sys_enter, PROG_ARRAY, u32, u32, 512); syscalls_sys_enter 267 tools/perf/examples/bpf/augmented_raw_syscalls.c bpf_tail_call(args, &syscalls_sys_enter, augmented_args->args.syscall_nr);