tools/testing/selftests/bpf/progs/test_autoload.c

   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")
  14 int prog1(const void *ctx)
  15 {
  16         prog1_called = true;
  17         return 0;
  18 }
  19
  20 SEC("raw_tp/sys_exit")
  21 int 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")
  32 int 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";