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1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2019 Facebook */3#include <linux/bpf.h>4#include <bpf/bpf_helpers.h>5#include <bpf/bpf_tracing.h>6 7char _license[] SEC("license") = "GPL";8 9__u64 test1_result = 0;10SEC("fentry/bpf_fentry_test1")11int BPF_PROG(test1, int a)12{13 test1_result = a == 1;14 return 0;15}16 17__u64 test2_result = 0;18SEC("fentry/bpf_fentry_test2")19int BPF_PROG(test2, int a, __u64 b)20{21 test2_result = a == 2 && b == 3;22 return 0;23}24 25__u64 test3_result = 0;26SEC("fentry/bpf_fentry_test3")27int BPF_PROG(test3, char a, int b, __u64 c)28{29 test3_result = a == 4 && b == 5 && c == 6;30 return 0;31}32 33__u64 test4_result = 0;34SEC("fentry/bpf_fentry_test4")35int BPF_PROG(test4, void *a, char b, int c, __u64 d)36{37 test4_result = a == (void *)7 && b == 8 && c == 9 && d == 10;38 return 0;39}40 41__u64 test5_result = 0;42SEC("fentry/bpf_fentry_test5")43int BPF_PROG(test5, __u64 a, void *b, short c, int d, __u64 e)44{45 test5_result = a == 11 && b == (void *)12 && c == 13 && d == 14 &&46 e == 15;47 return 0;48}49 50__u64 test6_result = 0;51SEC("fentry/bpf_fentry_test6")52int BPF_PROG(test6, __u64 a, void *b, short c, int d, void * e, __u64 f)53{54 test6_result = a == 16 && b == (void *)17 && c == 18 && d == 19 &&55 e == (void *)20 && f == 21;56 return 0;57}58 59struct bpf_fentry_test_t {60 struct bpf_fentry_test_t *a;61};62 63__u64 test7_result = 0;64SEC("fentry/bpf_fentry_test7")65int BPF_PROG(test7, struct bpf_fentry_test_t *arg)66{67 if (!arg)68 test7_result = 1;69 return 0;70}71 72__u64 test8_result = 0;73SEC("fentry/bpf_fentry_test8")74int BPF_PROG(test8, struct bpf_fentry_test_t *arg)75{76 if (arg->a == 0)77 test8_result = 1;78 return 0;79}80