1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2025 Meta Platforms Inc. */
3 #include <test_progs.h>
4 #include "test_btf_ext.skel.h"
5 #include "btf_helpers.h"
6
subtest_line_func_info(void)7 static void subtest_line_func_info(void)
8 {
9 struct test_btf_ext *skel;
10 struct bpf_prog_info info;
11 struct bpf_line_info line_info[128], *libbpf_line_info;
12 struct bpf_func_info func_info[128], *libbpf_func_info;
13 __u32 info_len = sizeof(info), libbbpf_line_info_cnt, libbbpf_func_info_cnt;
14 int err, fd;
15
16 skel = test_btf_ext__open_and_load();
17 if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
18 return;
19
20 fd = bpf_program__fd(skel->progs.global_func);
21
22 memset(&info, 0, sizeof(info));
23 info.line_info = ptr_to_u64(&line_info);
24 info.nr_line_info = sizeof(line_info);
25 info.line_info_rec_size = sizeof(*line_info);
26 err = bpf_prog_get_info_by_fd(fd, &info, &info_len);
27 if (!ASSERT_OK(err, "prog_line_info"))
28 goto out;
29
30 libbpf_line_info = bpf_program__line_info(skel->progs.global_func);
31 libbbpf_line_info_cnt = bpf_program__line_info_cnt(skel->progs.global_func);
32
33 memset(&info, 0, sizeof(info));
34 info.func_info = ptr_to_u64(&func_info);
35 info.nr_func_info = sizeof(func_info);
36 info.func_info_rec_size = sizeof(*func_info);
37 err = bpf_prog_get_info_by_fd(fd, &info, &info_len);
38 if (!ASSERT_OK(err, "prog_func_info"))
39 goto out;
40
41 libbpf_func_info = bpf_program__func_info(skel->progs.global_func);
42 libbbpf_func_info_cnt = bpf_program__func_info_cnt(skel->progs.global_func);
43
44 if (!ASSERT_OK_PTR(libbpf_line_info, "bpf_program__line_info"))
45 goto out;
46 if (!ASSERT_EQ(libbbpf_line_info_cnt, info.nr_line_info, "line_info_cnt"))
47 goto out;
48 if (!ASSERT_OK_PTR(libbpf_func_info, "bpf_program__func_info"))
49 goto out;
50 if (!ASSERT_EQ(libbbpf_func_info_cnt, info.nr_func_info, "func_info_cnt"))
51 goto out;
52 ASSERT_MEMEQ(libbpf_line_info, line_info, libbbpf_line_info_cnt * sizeof(*line_info),
53 "line_info");
54 ASSERT_MEMEQ(libbpf_func_info, func_info, libbbpf_func_info_cnt * sizeof(*func_info),
55 "func_info");
56 out:
57 test_btf_ext__destroy(skel);
58 }
59
test_btf_ext(void)60 void test_btf_ext(void)
61 {
62 if (test__start_subtest("line_func_info"))
63 subtest_line_func_info();
64 }
65