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
8struct bpf_testmod_struct_arg_1 {
9 int a;
10};
11struct bpf_testmod_struct_arg_2 {
12 long a;
13 long b;
14};
15
16struct bpf_testmod_struct_arg_3 {
17 int a;
18 int b[];
19};
20
21struct bpf_testmod_struct_arg_4 {
22 u64 a;
23 int b;
24};
25
26long t1_a_a, t1_a_b, t1_b, t1_c, t1_ret, t1_nregs;
27__u64 t1_reg0, t1_reg1, t1_reg2, t1_reg3;
28long t2_a, t2_b_a, t2_b_b, t2_c, t2_ret;
29long t3_a, t3_b, t3_c_a, t3_c_b, t3_ret;
30long t4_a_a, t4_b, t4_c, t4_d, t4_e_a, t4_e_b, t4_ret;
31long t5_ret;
32int t6;
33long t7_a, t7_b, t7_c, t7_d, t7_e, t7_f_a, t7_f_b, t7_ret;
34long t8_a, t8_b, t8_c, t8_d, t8_e, t8_f_a, t8_f_b, t8_g, t8_ret;
35
36
37SEC("fentry/bpf_testmod_test_struct_arg_1")
38int 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
47SEC("fexit/bpf_testmod_test_struct_arg_1")
48int 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
66SEC("fentry/bpf_testmod_test_struct_arg_2")
67int 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
76SEC("fexit/bpf_testmod_test_struct_arg_2")
77int 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
83SEC("fentry/bpf_testmod_test_struct_arg_3")
84int 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
93SEC("fexit/bpf_testmod_test_struct_arg_3")
94int 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
100SEC("fentry/bpf_testmod_test_struct_arg_4")
101int 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
113SEC("fexit/bpf_testmod_test_struct_arg_4")
114int 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
121SEC("fentry/bpf_testmod_test_struct_arg_5")
122int BPF_PROG2(test_struct_arg_9)
123{
124 return 0;
125}
126
127SEC("fexit/bpf_testmod_test_struct_arg_5")
128int BPF_PROG2(test_struct_arg_10, int, ret)
129{
130 t5_ret = ret;
131 return 0;
132}
133
134SEC("fentry/bpf_testmod_test_struct_arg_6")
135int BPF_PROG2(test_struct_arg_11, struct bpf_testmod_struct_arg_3 *, a)
136{
137 t6 = a->b[0];
138 return 0;
139}
140
141SEC("fentry/bpf_testmod_test_struct_arg_7")
142int 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
155SEC("fexit/bpf_testmod_test_struct_arg_7")
156int 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
163SEC("fentry/bpf_testmod_test_struct_arg_8")
164int 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
178SEC("fexit/bpf_testmod_test_struct_arg_8")
179int 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
187char _license[] SEC("license") = "GPL";
188

source code of linux/tools/testing/selftests/bpf/progs/tracing_struct.c