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

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (c) 2017 Facebook
   3
   4 #include <linux/ptrace.h>
   5 #include <linux/bpf.h>
   6 #include <bpf/bpf_helpers.h>
   7
   8 int kprobe_res = 0;
   9 int kretprobe_res = 0;
  10 int uprobe_res = 0;
  11 int uretprobe_res = 0;
  12
  13 SEC("kprobe/sys_nanosleep")
  14 int handle_kprobe(struct pt_regs *ctx)
  15 {
  16         kprobe_res = 1;
  17         return 0;
  18 }
  19
  20 SEC("kretprobe/sys_nanosleep")
  21 int handle_kretprobe(struct pt_regs *ctx)
  22 {
  23         kretprobe_res = 2;
  24         return 0;
  25 }
  26
  27 SEC("uprobe/trigger_func")
  28 int handle_uprobe(struct pt_regs *ctx)
  29 {
  30         uprobe_res = 3;
  31         return 0;
  32 }
  33
  34 SEC("uretprobe/trigger_func")
  35 int handle_uretprobe(struct pt_regs *ctx)
  36 {
  37         uretprobe_res = 4;
  38         return 0;
  39 }
  40
  41 char _license[] SEC("license") = "GPL";