1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2020 Facebook
3 #define _GNU_SOURCE
4 #include <test_progs.h>
5 #include "test_core_retro.skel.h"
6
test_core_retro(void)7 void test_core_retro(void)
8 {
9 int err, zero = 0, res, my_pid = getpid();
10 struct test_core_retro *skel;
11
12 /* load program */
13 skel = test_core_retro__open_and_load();
14 if (!ASSERT_OK_PTR(skel, "skel_load"))
15 goto out_close;
16
17 err = bpf_map__update_elem(skel->maps.exp_tgid_map, &zero, sizeof(zero),
18 &my_pid, sizeof(my_pid), 0);
19 if (!ASSERT_OK(err, "map_update"))
20 goto out_close;
21
22 /* attach probe */
23 err = test_core_retro__attach(skel);
24 if (!ASSERT_OK(err, "attach_kprobe"))
25 goto out_close;
26
27 /* trigger */
28 usleep(1);
29
30 err = bpf_map__lookup_elem(skel->maps.results, &zero, sizeof(zero), &res, sizeof(res), 0);
31 if (!ASSERT_OK(err, "map_lookup"))
32 goto out_close;
33
34 ASSERT_EQ(res, my_pid, "pid_check");
35
36 out_close:
37 test_core_retro__destroy(skel);
38 }
39