1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2020 Facebook */ 3 4 #include "vmlinux.h" 5 #include <bpf/bpf_helpers.h> 6 #include <bpf/bpf_tracing.h> 7 #include <bpf/bpf_core_read.h> 8 9 bool prog1_called = false; 10 bool prog2_called = false; 11 bool prog3_called = false; 12 13 SEC("raw_tp/sys_enter") prog1(const void * ctx)14int prog1(const void *ctx) 15 { 16 prog1_called = true; 17 return 0; 18 } 19 20 SEC("raw_tp/sys_exit") prog2(const void * ctx)21int prog2(const void *ctx) 22 { 23 prog2_called = true; 24 return 0; 25 } 26 27 struct fake_kernel_struct { 28 int whatever; 29 } __attribute__((preserve_access_index)); 30 31 SEC("fentry/unexisting-kprobe-will-fail-if-loaded") prog3(const void * ctx)32int prog3(const void *ctx) 33 { 34 struct fake_kernel_struct *fake = (void *)ctx; 35 fake->whatever = 123; 36 prog3_called = true; 37 return 0; 38 } 39 40 char _license[] SEC("license") = "GPL"; 41