1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2021 Facebook */ 3 4 #include "vmlinux.h" 5 6 #include <bpf/bpf_helpers.h> 7 8 extern const int bpf_testmod_ksym_percpu __ksym; 9 10 int out_mod_ksym_global = 0; 11 bool triggered = false; 12 13 SEC("raw_tp/sys_enter") handler(const void * ctx)14int handler(const void *ctx) 15 { 16 int *val; 17 __u32 cpu; 18 19 val = (int *)bpf_this_cpu_ptr(&bpf_testmod_ksym_percpu); 20 out_mod_ksym_global = *val; 21 triggered = true; 22 23 return 0; 24 } 25 26 char LICENSE[] SEC("license") = "GPL"; 27