LXR linux/tools/testing/selftests/bpf/progs/test

   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
   9bool prog1_called = false;
  10bool prog2_called = false;
  11bool prog3_called = false;
  12
  13SEC("raw_tp/sys_enter")
  14int prog1(const void *ctx)
  15{
  16        prog1_called = true;
  17        return 0;
  18}
  19
  20SEC("raw_tp/sys_exit")
  21int prog2(const void *ctx)
  22{
  23        prog2_called = true;
  24        return 0;
  25}
  26
  27struct fake_kernel_struct {
  28        int whatever;
  29} __attribute__((preserve_access_index));
  30
  31SEC("fentry/unexisting-kprobe-will-fail-if-loaded")
  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
  40char _license[] SEC("license") = "GPL";
  41