1
2#include <linux/bpf.h>
3#include <bpf/bpf_helpers.h>
4#include <bpf/bpf_tracing.h>
5#include <stdbool.h>
6
7#ifdef ENABLE_ATOMICS_TESTS
8bool skip_tests __attribute((__section__(".data"))) = false;
9#else
10bool skip_tests = true;
11#endif
12
13__u64 add64_value = 1;
14__u64 add64_result = 0;
15__u32 add32_value = 1;
16__u32 add32_result = 0;
17__u64 add_stack_value_copy = 0;
18__u64 add_stack_result = 0;
19__u64 add_noreturn_value = 1;
20
21SEC("fentry/bpf_fentry_test1")
22int BPF_PROG(add, int a)
23{
24#ifdef ENABLE_ATOMICS_TESTS
25 __u64 add_stack_value = 1;
26
27 add64_result = __sync_fetch_and_add(&add64_value, 2);
28 add32_result = __sync_fetch_and_add(&add32_value, 2);
29 add_stack_result = __sync_fetch_and_add(&add_stack_value, 2);
30 add_stack_value_copy = add_stack_value;
31 __sync_fetch_and_add(&add_noreturn_value, 2);
32#endif
33
34 return 0;
35}
36
37__s64 sub64_value = 1;
38__s64 sub64_result = 0;
39__s32 sub32_value = 1;
40__s32 sub32_result = 0;
41__s64 sub_stack_value_copy = 0;
42__s64 sub_stack_result = 0;
43__s64 sub_noreturn_value = 1;
44
45SEC("fentry/bpf_fentry_test1")
46int BPF_PROG(sub, int a)
47{
48#ifdef ENABLE_ATOMICS_TESTS
49 __u64 sub_stack_value = 1;
50
51 sub64_result = __sync_fetch_and_sub(&sub64_value, 2);
52 sub32_result = __sync_fetch_and_sub(&sub32_value, 2);
53 sub_stack_result = __sync_fetch_and_sub(&sub_stack_value, 2);
54 sub_stack_value_copy = sub_stack_value;
55 __sync_fetch_and_sub(&sub_noreturn_value, 2);
56#endif
57
58 return 0;
59}
60
61__u64 and64_value = (0x110ull << 32);
62__u64 and64_result = 0;
63__u32 and32_value = 0x110;
64__u32 and32_result = 0;
65__u64 and_noreturn_value = (0x110ull << 32);
66
67SEC("fentry/bpf_fentry_test1")
68int BPF_PROG(and, int a)
69{
70#ifdef ENABLE_ATOMICS_TESTS
71
72 and64_result = __sync_fetch_and_and(&and64_value, 0x011ull << 32);
73 and32_result = __sync_fetch_and_and(&and32_value, 0x011);
74 __sync_fetch_and_and(&and_noreturn_value, 0x011ull << 32);
75#endif
76
77 return 0;
78}
79
80__u64 or64_value = (0x110ull << 32);
81__u64 or64_result = 0;
82__u32 or32_value = 0x110;
83__u32 or32_result = 0;
84__u64 or_noreturn_value = (0x110ull << 32);
85
86SEC("fentry/bpf_fentry_test1")
87int BPF_PROG(or, int a)
88{
89#ifdef ENABLE_ATOMICS_TESTS
90 or64_result = __sync_fetch_and_or(&or64_value, 0x011ull << 32);
91 or32_result = __sync_fetch_and_or(&or32_value, 0x011);
92 __sync_fetch_and_or(&or_noreturn_value, 0x011ull << 32);
93#endif
94
95 return 0;
96}
97
98__u64 xor64_value = (0x110ull << 32);
99__u64 xor64_result = 0;
100__u32 xor32_value = 0x110;
101__u32 xor32_result = 0;
102__u64 xor_noreturn_value = (0x110ull << 32);
103
104SEC("fentry/bpf_fentry_test1")
105int BPF_PROG(xor, int a)
106{
107#ifdef ENABLE_ATOMICS_TESTS
108 xor64_result = __sync_fetch_and_xor(&xor64_value, 0x011ull << 32);
109 xor32_result = __sync_fetch_and_xor(&xor32_value, 0x011);
110 __sync_fetch_and_xor(&xor_noreturn_value, 0x011ull << 32);
111#endif
112
113 return 0;
114}
115
116__u64 cmpxchg64_value = 1;
117__u64 cmpxchg64_result_fail = 0;
118__u64 cmpxchg64_result_succeed = 0;
119__u32 cmpxchg32_value = 1;
120__u32 cmpxchg32_result_fail = 0;
121__u32 cmpxchg32_result_succeed = 0;
122
123SEC("fentry/bpf_fentry_test1")
124int BPF_PROG(cmpxchg, int a)
125{
126#ifdef ENABLE_ATOMICS_TESTS
127 cmpxchg64_result_fail = __sync_val_compare_and_swap(&cmpxchg64_value, 0, 3);
128 cmpxchg64_result_succeed = __sync_val_compare_and_swap(&cmpxchg64_value, 1, 2);
129
130 cmpxchg32_result_fail = __sync_val_compare_and_swap(&cmpxchg32_value, 0, 3);
131 cmpxchg32_result_succeed = __sync_val_compare_and_swap(&cmpxchg32_value, 1, 2);
132#endif
133
134 return 0;
135}
136
137__u64 xchg64_value = 1;
138__u64 xchg64_result = 0;
139__u32 xchg32_value = 1;
140__u32 xchg32_result = 0;
141
142SEC("fentry/bpf_fentry_test1")
143int BPF_PROG(xchg, int a)
144{
145#ifdef ENABLE_ATOMICS_TESTS
146 __u64 val64 = 2;
147 __u32 val32 = 2;
148
149 xchg64_result = __sync_lock_test_and_set(&xchg64_value, val64);
150 xchg32_result = __sync_lock_test_and_set(&xchg32_value, val32);
151#endif
152
153 return 0;
154}
155
