1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2019 Facebook */
3 #include <linux/bpf.h>
4 #include "bpf_helpers.h"
5 #include "bpf_trace_helpers.h"
6 
7 char _license[] SEC("license") = "GPL";
8 
9 __u64 test1_result = 0;
10 BPF_TRACE_1("fentry/bpf_fentry_test1", test1, int, a)
11 {
12 	test1_result = a == 1;
13 	return 0;
14 }
15 
16 __u64 test2_result = 0;
17 BPF_TRACE_2("fentry/bpf_fentry_test2", test2, int, a, __u64, b)
18 {
19 	test2_result = a == 2 && b == 3;
20 	return 0;
21 }
22 
23 __u64 test3_result = 0;
24 BPF_TRACE_3("fentry/bpf_fentry_test3", test3, char, a, int, b, __u64, c)
25 {
26 	test3_result = a == 4 && b == 5 && c == 6;
27 	return 0;
28 }
29 
30 __u64 test4_result = 0;
31 BPF_TRACE_4("fentry/bpf_fentry_test4", test4,
32 	    void *, a, char, b, int, c, __u64, d)
33 {
34 	test4_result = a == (void *)7 && b == 8 && c == 9 && d == 10;
35 	return 0;
36 }
37 
38 __u64 test5_result = 0;
39 BPF_TRACE_5("fentry/bpf_fentry_test5", test5,
40 	    __u64, a, void *, b, short, c, int, d, __u64, e)
41 {
42 	test5_result = a == 11 && b == (void *)12 && c == 13 && d == 14 &&
43 		e == 15;
44 	return 0;
45 }
46 
47 __u64 test6_result = 0;
48 BPF_TRACE_6("fentry/bpf_fentry_test6", test6,
49 	    __u64, a, void *, b, short, c, int, d, void *, e, __u64, f)
50 {
51 	test6_result = a == 16 && b == (void *)17 && c == 18 && d == 19 &&
52 		e == (void *)20 && f == 21;
53 	return 0;
54 }
55