| // SPDX-License-Identifier: GPL-2.0 |
| // Copyright (c) 2020 Facebook |
| #define _GNU_SOURCE |
| #include <test_progs.h> |
| #include "test_core_retro.skel.h" |
| |
| void test_core_retro(void) |
| { |
| int err, zero = 0, res, my_pid = getpid(); |
| struct test_core_retro *skel; |
| |
| /* load program */ |
| skel = test_core_retro__open_and_load(); |
| if (!ASSERT_OK_PTR(skel, "skel_load")) |
| goto out_close; |
| |
| err = bpf_map__update_elem(skel->maps.exp_tgid_map, &zero, sizeof(zero), |
| &my_pid, sizeof(my_pid), 0); |
| if (!ASSERT_OK(err, "map_update")) |
| goto out_close; |
| |
| /* attach probe */ |
| err = test_core_retro__attach(skel); |
| if (!ASSERT_OK(err, "attach_kprobe")) |
| goto out_close; |
| |
| /* trigger */ |
| usleep(1); |
| |
| err = bpf_map__lookup_elem(skel->maps.results, &zero, sizeof(zero), &res, sizeof(res), 0); |
| if (!ASSERT_OK(err, "map_lookup")) |
| goto out_close; |
| |
| ASSERT_EQ(res, my_pid, "pid_check"); |
| |
| out_close: |
| test_core_retro__destroy(skel); |
| } |