tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
21long t1_a_a, t1_a_b, t1_b, t1_c, t1_ret, t1_nregs;
22__u64 t1_reg0, t1_reg1, t1_reg2, t1_reg3;
23long t2_a, t2_b_a, t2_b_b, t2_c, t2_ret;
24long t3_a, t3_b, t3_c_a, t3_c_b, t3_ret;
25long t4_a_a, t4_b, t4_c, t4_d, t4_e_a, t4_e_b, t4_ret;
26long t5_ret;
27int t6;
28
29SEC("fentry/bpf_testmod_test_struct_arg_1")
30int 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
39SEC("fexit/bpf_testmod_test_struct_arg_1")
40int 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
58SEC("fentry/bpf_testmod_test_struct_arg_2")
59int 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
68SEC("fexit/bpf_testmod_test_struct_arg_2")
69int 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
75SEC("fentry/bpf_testmod_test_struct_arg_3")
76int 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
85SEC("fexit/bpf_testmod_test_struct_arg_3")
86int 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
92SEC("fentry/bpf_testmod_test_struct_arg_4")
93int 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
105SEC("fexit/bpf_testmod_test_struct_arg_4")
106int 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
113SEC("fentry/bpf_testmod_test_struct_arg_5")
114int BPF_PROG2(test_struct_arg_9)
115{
116 return 0;
117}
118
119SEC("fexit/bpf_testmod_test_struct_arg_5")
120int BPF_PROG2(test_struct_arg_10, int, ret)
121{
122 t5_ret = ret;
123 return 0;
124}
125
126SEC("fentry/bpf_testmod_test_struct_arg_6")
127int BPF_PROG2(test_struct_arg_11, struct bpf_testmod_struct_arg_3 *, a)
128{
129 t6 = a->b[0];
130 return 0;
131}
132
133char _license[] SEC("license") = "GPL";