1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | |
3 | #include <linux/kernel.h> |
4 | #include <linux/kprobes.h> |
5 | #include <linux/random.h> |
6 | #include <kunit/test.h> |
7 | #include "test_kprobes.h" |
8 | |
9 | static struct kprobe kp; |
10 | |
11 | static void setup_kprobe(struct kunit *test, struct kprobe *kp, |
12 | const char *symbol, int offset) |
13 | { |
14 | kp->offset = offset; |
15 | kp->addr = NULL; |
16 | kp->symbol_name = symbol; |
17 | } |
18 | |
19 | static void test_kprobe_offset(struct kunit *test, struct kprobe *kp, |
20 | const char *target, int offset) |
21 | { |
22 | int ret; |
23 | |
24 | setup_kprobe(test, kp, symbol: target, offset: 0); |
25 | ret = register_kprobe(p: kp); |
26 | if (!ret) |
27 | unregister_kprobe(p: kp); |
28 | KUNIT_EXPECT_EQ(test, 0, ret); |
29 | setup_kprobe(test, kp, symbol: target, offset); |
30 | ret = register_kprobe(p: kp); |
31 | KUNIT_EXPECT_EQ(test, -EINVAL, ret); |
32 | if (!ret) |
33 | unregister_kprobe(p: kp); |
34 | } |
35 | |
36 | static void test_kprobe_odd(struct kunit *test) |
37 | { |
38 | test_kprobe_offset(test, kp: &kp, target: "kprobes_target_odd" , |
39 | offset: kprobes_target_odd_offs); |
40 | } |
41 | |
42 | static void test_kprobe_in_insn4(struct kunit *test) |
43 | { |
44 | test_kprobe_offset(test, kp: &kp, target: "kprobes_target_in_insn4" , |
45 | offset: kprobes_target_in_insn4_offs); |
46 | } |
47 | |
48 | static void test_kprobe_in_insn6_lo(struct kunit *test) |
49 | { |
50 | test_kprobe_offset(test, kp: &kp, target: "kprobes_target_in_insn6_lo" , |
51 | offset: kprobes_target_in_insn6_lo_offs); |
52 | } |
53 | |
54 | static void test_kprobe_in_insn6_hi(struct kunit *test) |
55 | { |
56 | test_kprobe_offset(test, kp: &kp, target: "kprobes_target_in_insn6_hi" , |
57 | offset: kprobes_target_in_insn6_hi_offs); |
58 | } |
59 | |
60 | static struct kunit_case kprobes_testcases[] = { |
61 | KUNIT_CASE(test_kprobe_odd), |
62 | KUNIT_CASE(test_kprobe_in_insn4), |
63 | KUNIT_CASE(test_kprobe_in_insn6_lo), |
64 | KUNIT_CASE(test_kprobe_in_insn6_hi), |
65 | {} |
66 | }; |
67 | |
68 | static struct kunit_suite kprobes_test_suite = { |
69 | .name = "kprobes_test_s390" , |
70 | .test_cases = kprobes_testcases, |
71 | }; |
72 | |
73 | kunit_test_suites(&kprobes_test_suite); |
74 | |
75 | MODULE_LICENSE("GPL" ); |
76 | |