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 struct bpf_testmod_struct_arg_4 {
22 	u64 a;
23 	int b;
24 };
25 
26 long t1_a_a, t1_a_b, t1_b, t1_c, t1_ret, t1_nregs;
27 __u64 t1_reg0, t1_reg1, t1_reg2, t1_reg3;
28 long t2_a, t2_b_a, t2_b_b, t2_c, t2_ret;
29 long t3_a, t3_b, t3_c_a, t3_c_b, t3_ret;
30 long t4_a_a, t4_b, t4_c, t4_d, t4_e_a, t4_e_b, t4_ret;
31 long t5_ret;
32 int t6;
33 long t7_a, t7_b, t7_c, t7_d, t7_e, t7_f_a, t7_f_b, t7_ret;
34 long t8_a, t8_b, t8_c, t8_d, t8_e, t8_f_a, t8_f_b, t8_g, t8_ret;
35 
36 
37 SEC("fentry/bpf_testmod_test_struct_arg_1")
38 int BPF_PROG2(test_struct_arg_1, struct bpf_testmod_struct_arg_2, a, int, b, int, c)
39 {
40 	t1_a_a = a.a;
41 	t1_a_b = a.b;
42 	t1_b = b;
43 	t1_c = c;
44 	return 0;
45 }
46 
47 SEC("fexit/bpf_testmod_test_struct_arg_1")
48 int BPF_PROG2(test_struct_arg_2, struct bpf_testmod_struct_arg_2, a, int, b, int, c, int, ret)
49 {
50 	t1_nregs =  bpf_get_func_arg_cnt(ctx);
51 	/* a.a */
52 	bpf_get_func_arg(ctx, 0, &t1_reg0);
53 	/* a.b */
54 	bpf_get_func_arg(ctx, 1, &t1_reg1);
55 	/* b */
56 	bpf_get_func_arg(ctx, 2, &t1_reg2);
57 	t1_reg2 = (int)t1_reg2;
58 	/* c */
59 	bpf_get_func_arg(ctx, 3, &t1_reg3);
60 	t1_reg3 = (int)t1_reg3;
61 
62 	t1_ret = ret;
63 	return 0;
64 }
65 
66 SEC("fentry/bpf_testmod_test_struct_arg_2")
67 int BPF_PROG2(test_struct_arg_3, int, a, struct bpf_testmod_struct_arg_2, b, int, c)
68 {
69 	t2_a = a;
70 	t2_b_a = b.a;
71 	t2_b_b = b.b;
72 	t2_c = c;
73 	return 0;
74 }
75 
76 SEC("fexit/bpf_testmod_test_struct_arg_2")
77 int BPF_PROG2(test_struct_arg_4, int, a, struct bpf_testmod_struct_arg_2, b, int, c, int, ret)
78 {
79 	t2_ret = ret;
80 	return 0;
81 }
82 
83 SEC("fentry/bpf_testmod_test_struct_arg_3")
84 int BPF_PROG2(test_struct_arg_5, int, a, int, b, struct bpf_testmod_struct_arg_2, c)
85 {
86 	t3_a = a;
87 	t3_b = b;
88 	t3_c_a = c.a;
89 	t3_c_b = c.b;
90 	return 0;
91 }
92 
93 SEC("fexit/bpf_testmod_test_struct_arg_3")
94 int BPF_PROG2(test_struct_arg_6, int, a, int, b, struct bpf_testmod_struct_arg_2, c, int, ret)
95 {
96 	t3_ret = ret;
97 	return 0;
98 }
99 
100 SEC("fentry/bpf_testmod_test_struct_arg_4")
101 int BPF_PROG2(test_struct_arg_7, struct bpf_testmod_struct_arg_1, a, int, b,
102 	     int, c, int, d, struct bpf_testmod_struct_arg_2, e)
103 {
104 	t4_a_a = a.a;
105 	t4_b = b;
106 	t4_c = c;
107 	t4_d = d;
108 	t4_e_a = e.a;
109 	t4_e_b = e.b;
110 	return 0;
111 }
112 
113 SEC("fexit/bpf_testmod_test_struct_arg_4")
114 int BPF_PROG2(test_struct_arg_8, struct bpf_testmod_struct_arg_1, a, int, b,
115 	     int, c, int, d, struct bpf_testmod_struct_arg_2, e, int, ret)
116 {
117 	t4_ret = ret;
118 	return 0;
119 }
120 
121 SEC("fentry/bpf_testmod_test_struct_arg_5")
122 int BPF_PROG2(test_struct_arg_9)
123 {
124 	return 0;
125 }
126 
127 SEC("fexit/bpf_testmod_test_struct_arg_5")
128 int BPF_PROG2(test_struct_arg_10, int, ret)
129 {
130 	t5_ret = ret;
131 	return 0;
132 }
133 
134 SEC("fentry/bpf_testmod_test_struct_arg_6")
135 int BPF_PROG2(test_struct_arg_11, struct bpf_testmod_struct_arg_3 *, a)
136 {
137 	t6 = a->b[0];
138 	return 0;
139 }
140 
141 SEC("fentry/bpf_testmod_test_struct_arg_7")
142 int BPF_PROG2(test_struct_arg_12, __u64, a, void *, b, short, c, int, d,
143 	      void *, e, struct bpf_testmod_struct_arg_4, f)
144 {
145 	t7_a = a;
146 	t7_b = (long)b;
147 	t7_c = c;
148 	t7_d = d;
149 	t7_e = (long)e;
150 	t7_f_a = f.a;
151 	t7_f_b = f.b;
152 	return 0;
153 }
154 
155 SEC("fexit/bpf_testmod_test_struct_arg_7")
156 int BPF_PROG2(test_struct_arg_13, __u64, a, void *, b, short, c, int, d,
157 	      void *, e, struct bpf_testmod_struct_arg_4, f, int, ret)
158 {
159 	t7_ret = ret;
160 	return 0;
161 }
162 
163 SEC("fentry/bpf_testmod_test_struct_arg_8")
164 int BPF_PROG2(test_struct_arg_14, __u64, a, void *, b, short, c, int, d,
165 	      void *, e, struct bpf_testmod_struct_arg_4, f, int, g)
166 {
167 	t8_a = a;
168 	t8_b = (long)b;
169 	t8_c = c;
170 	t8_d = d;
171 	t8_e = (long)e;
172 	t8_f_a = f.a;
173 	t8_f_b = f.b;
174 	t8_g = g;
175 	return 0;
176 }
177 
178 SEC("fexit/bpf_testmod_test_struct_arg_8")
179 int BPF_PROG2(test_struct_arg_15, __u64, a, void *, b, short, c, int, d,
180 	      void *, e, struct bpf_testmod_struct_arg_4, f, int, g,
181 	      int, ret)
182 {
183 	t8_ret = ret;
184 	return 0;
185 }
186 
187 char _license[] SEC("license") = "GPL";
188