]> Git Repo - J-linux.git/blob - tools/testing/selftests/bpf/prog_tests/kprobe_multi_testmod_test.c
Merge tag 'vfs-6.13-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
[J-linux.git] / tools / testing / selftests / bpf / prog_tests / kprobe_multi_testmod_test.c
1 // SPDX-License-Identifier: GPL-2.0
2 #include <test_progs.h>
3 #include "kprobe_multi.skel.h"
4 #include "trace_helpers.h"
5 #include "bpf/libbpf_internal.h"
6
7 static struct ksyms *ksyms;
8
9 static void kprobe_multi_testmod_check(struct kprobe_multi *skel)
10 {
11         ASSERT_EQ(skel->bss->kprobe_testmod_test1_result, 1, "kprobe_test1_result");
12         ASSERT_EQ(skel->bss->kprobe_testmod_test2_result, 1, "kprobe_test2_result");
13         ASSERT_EQ(skel->bss->kprobe_testmod_test3_result, 1, "kprobe_test3_result");
14
15         ASSERT_EQ(skel->bss->kretprobe_testmod_test1_result, 1, "kretprobe_test1_result");
16         ASSERT_EQ(skel->bss->kretprobe_testmod_test2_result, 1, "kretprobe_test2_result");
17         ASSERT_EQ(skel->bss->kretprobe_testmod_test3_result, 1, "kretprobe_test3_result");
18 }
19
20 static void test_testmod_attach_api(struct bpf_kprobe_multi_opts *opts)
21 {
22         struct kprobe_multi *skel = NULL;
23
24         skel = kprobe_multi__open_and_load();
25         if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
26                 return;
27
28         skel->bss->pid = getpid();
29
30         skel->links.test_kprobe_testmod = bpf_program__attach_kprobe_multi_opts(
31                                                 skel->progs.test_kprobe_testmod,
32                                                 NULL, opts);
33         if (!skel->links.test_kprobe_testmod)
34                 goto cleanup;
35
36         opts->retprobe = true;
37         skel->links.test_kretprobe_testmod = bpf_program__attach_kprobe_multi_opts(
38                                                 skel->progs.test_kretprobe_testmod,
39                                                 NULL, opts);
40         if (!skel->links.test_kretprobe_testmod)
41                 goto cleanup;
42
43         ASSERT_OK(trigger_module_test_read(1), "trigger_read");
44         kprobe_multi_testmod_check(skel);
45
46 cleanup:
47         kprobe_multi__destroy(skel);
48 }
49
50 static void test_testmod_attach_api_addrs(void)
51 {
52         LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
53         unsigned long long addrs[3];
54
55         addrs[0] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test1");
56         ASSERT_NEQ(addrs[0], 0, "ksym_get_addr_local");
57         addrs[1] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test2");
58         ASSERT_NEQ(addrs[1], 0, "ksym_get_addr_local");
59         addrs[2] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test3");
60         ASSERT_NEQ(addrs[2], 0, "ksym_get_addr_local");
61
62         opts.addrs = (const unsigned long *) addrs;
63         opts.cnt = ARRAY_SIZE(addrs);
64
65         test_testmod_attach_api(&opts);
66 }
67
68 static void test_testmod_attach_api_syms(void)
69 {
70         LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
71         const char *syms[3] = {
72                 "bpf_testmod_fentry_test1",
73                 "bpf_testmod_fentry_test2",
74                 "bpf_testmod_fentry_test3",
75         };
76
77         opts.syms = syms;
78         opts.cnt = ARRAY_SIZE(syms);
79         test_testmod_attach_api(&opts);
80 }
81
82 void serial_test_kprobe_multi_testmod_test(void)
83 {
84         ksyms = load_kallsyms_local();
85         if (!ASSERT_OK_PTR(ksyms, "load_kallsyms_local"))
86                 return;
87
88         if (test__start_subtest("testmod_attach_api_syms"))
89                 test_testmod_attach_api_syms();
90
91         if (test__start_subtest("testmod_attach_api_addrs"))
92                 test_testmod_attach_api_addrs();
93
94         free_kallsyms_local(ksyms);
95 }
This page took 0.031587 seconds and 4 git commands to generate.