1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
3
4 #include <vmlinux.h>
5 #include <bpf/bpf_tracing.h>
6 #include <bpf/bpf_helpers.h>
7
8 struct bpf_testmod_struct_arg_1 {
9 int a;
10 };
11 struct bpf_testmod_struct_arg_2 {
12 long a;
13 long b;
14 };
15
16 struct bpf_testmod_struct_arg_3 {
17 int a;
18 int b[];
19 };
20
21 long t1_a_a, t1_a_b, t1_b, t1_c, t1_ret, t1_nregs;
22 __u64 t1_reg0, t1_reg1, t1_reg2, t1_reg3;
23 long t2_a, t2_b_a, t2_b_b, t2_c, t2_ret;
24 long t3_a, t3_b, t3_c_a, t3_c_b, t3_ret;
25 long t4_a_a, t4_b, t4_c, t4_d, t4_e_a, t4_e_b, t4_ret;
26 long t5_ret;
27 int t6;
28
29 SEC("fentry/bpf_testmod_test_struct_arg_1")
30 int BPF_PROG2(test_struct_arg_1, struct bpf_testmod_struct_arg_2, a, int, b, int, c)
31 {
32 t1_a_a = a.a;
33 t1_a_b = a.b;
34 t1_b = b;
35 t1_c = c;
36 return 0;
37 }
38
39 SEC("fexit/bpf_testmod_test_struct_arg_1")
40 int BPF_PROG2(test_struct_arg_2, struct bpf_testmod_struct_arg_2, a, int, b, int, c, int, ret)
41 {
42 t1_nregs = bpf_get_func_arg_cnt(ctx);
43 /* a.a */
44 bpf_get_func_arg(ctx, 0, &t1_reg0);
45 /* a.b */
46 bpf_get_func_arg(ctx, 1, &t1_reg1);
47 /* b */
48 bpf_get_func_arg(ctx, 2, &t1_reg2);
49 t1_reg2 = (int)t1_reg2;
50 /* c */
51 bpf_get_func_arg(ctx, 3, &t1_reg3);
52 t1_reg3 = (int)t1_reg3;
53
54 t1_ret = ret;
55 return 0;
56 }
57
58 SEC("fentry/bpf_testmod_test_struct_arg_2")
59 int BPF_PROG2(test_struct_arg_3, int, a, struct bpf_testmod_struct_arg_2, b, int, c)
60 {
61 t2_a = a;
62 t2_b_a = b.a;
63 t2_b_b = b.b;
64 t2_c = c;
65 return 0;
66 }
67
68 SEC("fexit/bpf_testmod_test_struct_arg_2")
69 int BPF_PROG2(test_struct_arg_4, int, a, struct bpf_testmod_struct_arg_2, b, int, c, int, ret)
70 {
71 t2_ret = ret;
72 return 0;
73 }
74
75 SEC("fentry/bpf_testmod_test_struct_arg_3")
76 int BPF_PROG2(test_struct_arg_5, int, a, int, b, struct bpf_testmod_struct_arg_2, c)
77 {
78 t3_a = a;
79 t3_b = b;
80 t3_c_a = c.a;
81 t3_c_b = c.b;
82 return 0;
83 }
84
85 SEC("fexit/bpf_testmod_test_struct_arg_3")
86 int BPF_PROG2(test_struct_arg_6, int, a, int, b, struct bpf_testmod_struct_arg_2, c, int, ret)
87 {
88 t3_ret = ret;
89 return 0;
90 }
91
92 SEC("fentry/bpf_testmod_test_struct_arg_4")
93 int BPF_PROG2(test_struct_arg_7, struct bpf_testmod_struct_arg_1, a, int, b,
94 int, c, int, d, struct bpf_testmod_struct_arg_2, e)
95 {
96 t4_a_a = a.a;
97 t4_b = b;
98 t4_c = c;
99 t4_d = d;
100 t4_e_a = e.a;
101 t4_e_b = e.b;
102 return 0;
103 }
104
105 SEC("fexit/bpf_testmod_test_struct_arg_4")
106 int BPF_PROG2(test_struct_arg_8, struct bpf_testmod_struct_arg_1, a, int, b,
107 int, c, int, d, struct bpf_testmod_struct_arg_2, e, int, ret)
108 {
109 t4_ret = ret;
110 return 0;
111 }
112
113 SEC("fentry/bpf_testmod_test_struct_arg_5")
114 int BPF_PROG2(test_struct_arg_9)
115 {
116 return 0;
117 }
118
119 SEC("fexit/bpf_testmod_test_struct_arg_5")
120 int BPF_PROG2(test_struct_arg_10, int, ret)
121 {
122 t5_ret = ret;
123 return 0;
124 }
125
126 SEC("fentry/bpf_testmod_test_struct_arg_6")
127 int BPF_PROG2(test_struct_arg_11, struct bpf_testmod_struct_arg_3 *, a)
128 {
129 t6 = a->b[0];
130 return 0;
131 }
132
133 char _license[] SEC("license") = "GPL";
134
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