1 // SPDX-License-Identifier: GPL-2.0
2
3 #include <test_progs.h>
4
5 #include "atomics.skel.h"
6
test_add(struct atomics * skel)7 static void test_add(struct atomics *skel)
8 {
9 int err, prog_fd;
10 __u32 duration = 0, retval;
11 struct bpf_link *link;
12
13 link = bpf_program__attach(skel->progs.add);
14 if (CHECK(IS_ERR(link), "attach(add)", "err: %ld\n", PTR_ERR(link)))
15 return;
16
17 prog_fd = bpf_program__fd(skel->progs.add);
18 err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
19 NULL, NULL, &retval, &duration);
20 if (CHECK(err || retval, "test_run add",
21 "err %d errno %d retval %d duration %d\n", err, errno, retval, duration))
22 goto cleanup;
23
24 ASSERT_EQ(skel->data->add64_value, 3, "add64_value");
25 ASSERT_EQ(skel->bss->add64_result, 1, "add64_result");
26
27 ASSERT_EQ(skel->data->add32_value, 3, "add32_value");
28 ASSERT_EQ(skel->bss->add32_result, 1, "add32_result");
29
30 ASSERT_EQ(skel->bss->add_stack_value_copy, 3, "add_stack_value");
31 ASSERT_EQ(skel->bss->add_stack_result, 1, "add_stack_result");
32
33 ASSERT_EQ(skel->data->add_noreturn_value, 3, "add_noreturn_value");
34
35 cleanup:
36 bpf_link__destroy(link);
37 }
38
test_sub(struct atomics * skel)39 static void test_sub(struct atomics *skel)
40 {
41 int err, prog_fd;
42 __u32 duration = 0, retval;
43 struct bpf_link *link;
44
45 link = bpf_program__attach(skel->progs.sub);
46 if (CHECK(IS_ERR(link), "attach(sub)", "err: %ld\n", PTR_ERR(link)))
47 return;
48
49 prog_fd = bpf_program__fd(skel->progs.sub);
50 err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
51 NULL, NULL, &retval, &duration);
52 if (CHECK(err || retval, "test_run sub",
53 "err %d errno %d retval %d duration %d\n",
54 err, errno, retval, duration))
55 goto cleanup;
56
57 ASSERT_EQ(skel->data->sub64_value, -1, "sub64_value");
58 ASSERT_EQ(skel->bss->sub64_result, 1, "sub64_result");
59
60 ASSERT_EQ(skel->data->sub32_value, -1, "sub32_value");
61 ASSERT_EQ(skel->bss->sub32_result, 1, "sub32_result");
62
63 ASSERT_EQ(skel->bss->sub_stack_value_copy, -1, "sub_stack_value");
64 ASSERT_EQ(skel->bss->sub_stack_result, 1, "sub_stack_result");
65
66 ASSERT_EQ(skel->data->sub_noreturn_value, -1, "sub_noreturn_value");
67
68 cleanup:
69 bpf_link__destroy(link);
70 }
71
test_and(struct atomics * skel)72 static void test_and(struct atomics *skel)
73 {
74 int err, prog_fd;
75 __u32 duration = 0, retval;
76 struct bpf_link *link;
77
78 link = bpf_program__attach(skel->progs.and);
79 if (CHECK(IS_ERR(link), "attach(and)", "err: %ld\n", PTR_ERR(link)))
80 return;
81
82 prog_fd = bpf_program__fd(skel->progs.and);
83 err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
84 NULL, NULL, &retval, &duration);
85 if (CHECK(err || retval, "test_run and",
86 "err %d errno %d retval %d duration %d\n", err, errno, retval, duration))
87 goto cleanup;
88
89 ASSERT_EQ(skel->data->and64_value, 0x010ull << 32, "and64_value");
90 ASSERT_EQ(skel->bss->and64_result, 0x110ull << 32, "and64_result");
91
92 ASSERT_EQ(skel->data->and32_value, 0x010, "and32_value");
93 ASSERT_EQ(skel->bss->and32_result, 0x110, "and32_result");
94
95 ASSERT_EQ(skel->data->and_noreturn_value, 0x010ull << 32, "and_noreturn_value");
96 cleanup:
97 bpf_link__destroy(link);
98 }
99
test_or(struct atomics * skel)100 static void test_or(struct atomics *skel)
101 {
102 int err, prog_fd;
103 __u32 duration = 0, retval;
104 struct bpf_link *link;
105
106 link = bpf_program__attach(skel->progs.or);
107 if (CHECK(IS_ERR(link), "attach(or)", "err: %ld\n", PTR_ERR(link)))
108 return;
109
110 prog_fd = bpf_program__fd(skel->progs.or);
111 err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
112 NULL, NULL, &retval, &duration);
113 if (CHECK(err || retval, "test_run or",
114 "err %d errno %d retval %d duration %d\n",
115 err, errno, retval, duration))
116 goto cleanup;
117
118 ASSERT_EQ(skel->data->or64_value, 0x111ull << 32, "or64_value");
119 ASSERT_EQ(skel->bss->or64_result, 0x110ull << 32, "or64_result");
120
121 ASSERT_EQ(skel->data->or32_value, 0x111, "or32_value");
122 ASSERT_EQ(skel->bss->or32_result, 0x110, "or32_result");
123
124 ASSERT_EQ(skel->data->or_noreturn_value, 0x111ull << 32, "or_noreturn_value");
125 cleanup:
126 bpf_link__destroy(link);
127 }
128
test_xor(struct atomics * skel)129 static void test_xor(struct atomics *skel)
130 {
131 int err, prog_fd;
132 __u32 duration = 0, retval;
133 struct bpf_link *link;
134
135 link = bpf_program__attach(skel->progs.xor);
136 if (CHECK(IS_ERR(link), "attach(xor)", "err: %ld\n", PTR_ERR(link)))
137 return;
138
139 prog_fd = bpf_program__fd(skel->progs.xor);
140 err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
141 NULL, NULL, &retval, &duration);
142 if (CHECK(err || retval, "test_run xor",
143 "err %d errno %d retval %d duration %d\n", err, errno, retval, duration))
144 goto cleanup;
145
146 ASSERT_EQ(skel->data->xor64_value, 0x101ull << 32, "xor64_value");
147 ASSERT_EQ(skel->bss->xor64_result, 0x110ull << 32, "xor64_result");
148
149 ASSERT_EQ(skel->data->xor32_value, 0x101, "xor32_value");
150 ASSERT_EQ(skel->bss->xor32_result, 0x110, "xor32_result");
151
152 ASSERT_EQ(skel->data->xor_noreturn_value, 0x101ull << 32, "xor_nxoreturn_value");
153 cleanup:
154 bpf_link__destroy(link);
155 }
156
test_cmpxchg(struct atomics * skel)157 static void test_cmpxchg(struct atomics *skel)
158 {
159 int err, prog_fd;
160 __u32 duration = 0, retval;
161 struct bpf_link *link;
162
163 link = bpf_program__attach(skel->progs.cmpxchg);
164 if (CHECK(IS_ERR(link), "attach(cmpxchg)", "err: %ld\n", PTR_ERR(link)))
165 return;
166
167 prog_fd = bpf_program__fd(skel->progs.cmpxchg);
168 err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
169 NULL, NULL, &retval, &duration);
170 if (CHECK(err || retval, "test_run add",
171 "err %d errno %d retval %d duration %d\n", err, errno, retval, duration))
172 goto cleanup;
173
174 ASSERT_EQ(skel->data->cmpxchg64_value, 2, "cmpxchg64_value");
175 ASSERT_EQ(skel->bss->cmpxchg64_result_fail, 1, "cmpxchg_result_fail");
176 ASSERT_EQ(skel->bss->cmpxchg64_result_succeed, 1, "cmpxchg_result_succeed");
177
178 ASSERT_EQ(skel->data->cmpxchg32_value, 2, "lcmpxchg32_value");
179 ASSERT_EQ(skel->bss->cmpxchg32_result_fail, 1, "cmpxchg_result_fail");
180 ASSERT_EQ(skel->bss->cmpxchg32_result_succeed, 1, "cmpxchg_result_succeed");
181
182 cleanup:
183 bpf_link__destroy(link);
184 }
185
test_xchg(struct atomics * skel)186 static void test_xchg(struct atomics *skel)
187 {
188 int err, prog_fd;
189 __u32 duration = 0, retval;
190 struct bpf_link *link;
191
192 link = bpf_program__attach(skel->progs.xchg);
193 if (CHECK(IS_ERR(link), "attach(xchg)", "err: %ld\n", PTR_ERR(link)))
194 return;
195
196 prog_fd = bpf_program__fd(skel->progs.xchg);
197 err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
198 NULL, NULL, &retval, &duration);
199 if (CHECK(err || retval, "test_run add",
200 "err %d errno %d retval %d duration %d\n", err, errno, retval, duration))
201 goto cleanup;
202
203 ASSERT_EQ(skel->data->xchg64_value, 2, "xchg64_value");
204 ASSERT_EQ(skel->bss->xchg64_result, 1, "xchg64_result");
205
206 ASSERT_EQ(skel->data->xchg32_value, 2, "xchg32_value");
207 ASSERT_EQ(skel->bss->xchg32_result, 1, "xchg32_result");
208
209 cleanup:
210 bpf_link__destroy(link);
211 }
212
test_atomics(void)213 void test_atomics(void)
214 {
215 struct atomics *skel;
216 __u32 duration = 0;
217
218 skel = atomics__open_and_load();
219 if (CHECK(!skel, "skel_load", "atomics skeleton failed\n"))
220 return;
221
222 if (skel->data->skip_tests) {
223 printf("%s:SKIP:no ENABLE_ATOMICS_TESTS (missing Clang BPF atomics support)",
224 __func__);
225 test__skip();
226 goto cleanup;
227 }
228
229 if (test__start_subtest("add"))
230 test_add(skel);
231 if (test__start_subtest("sub"))
232 test_sub(skel);
233 if (test__start_subtest("and"))
234 test_and(skel);
235 if (test__start_subtest("or"))
236 test_or(skel);
237 if (test__start_subtest("xor"))
238 test_xor(skel);
239 if (test__start_subtest("cmpxchg"))
240 test_cmpxchg(skel);
241 if (test__start_subtest("xchg"))
242 test_xchg(skel);
243
244 cleanup:
245 atomics__destroy(skel);
246 }
247