linux/tools/testing/selftests/bpf/progs/fexit_test.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/* 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("fexit/bpf_fentry_test1")
  11int BPF_PROG(test1, int a, int ret)
  12{
  13        test1_result = a == 1 && ret == 2;
  14        return 0;
  15}
  16
  17__u64 test2_result = 0;
  18SEC("fexit/bpf_fentry_test2")
  19int BPF_PROG(test2, int a, __u64 b, int ret)
  20{
  21        test2_result = a == 2 && b == 3 && ret == 5;
  22        return 0;
  23}
  24
  25__u64 test3_result = 0;
  26SEC("fexit/bpf_fentry_test3")
  27int BPF_PROG(test3, char a, int b, __u64 c, int ret)
  28{
  29        test3_result = a == 4 && b == 5 && c == 6 && ret == 15;
  30        return 0;
  31}
  32
  33__u64 test4_result = 0;
  34SEC("fexit/bpf_fentry_test4")
  35int BPF_PROG(test4, void *a, char b, int c, __u64 d, int ret)
  36{
  37        test4_result = a == (void *)7 && b == 8 && c == 9 && d == 10 &&
  38                ret == 34;
  39        return 0;
  40}
  41
  42__u64 test5_result = 0;
  43SEC("fexit/bpf_fentry_test5")
  44int BPF_PROG(test5, __u64 a, void *b, short c, int d, __u64 e, int ret)
  45{
  46        test5_result = a == 11 && b == (void *)12 && c == 13 && d == 14 &&
  47                e == 15 && ret == 65;
  48        return 0;
  49}
  50
  51__u64 test6_result = 0;
  52SEC("fexit/bpf_fentry_test6")
  53int BPF_PROG(test6, __u64 a, void *b, short c, int d, void *e, __u64 f, int ret)
  54{
  55        test6_result = a == 16 && b == (void *)17 && c == 18 && d == 19 &&
  56                e == (void *)20 && f == 21 && ret == 111;
  57        return 0;
  58}
  59
  60struct bpf_fentry_test_t {
  61        struct bpf_fentry_test *a;
  62};
  63
  64__u64 test7_result = 0;
  65SEC("fexit/bpf_fentry_test7")
  66int BPF_PROG(test7, struct bpf_fentry_test_t *arg)
  67{
  68        if (!arg)
  69                test7_result = 1;
  70        return 0;
  71}
  72
  73__u64 test8_result = 0;
  74SEC("fexit/bpf_fentry_test8")
  75int BPF_PROG(test8, struct bpf_fentry_test_t *arg)
  76{
  77        if (!arg->a)
  78                test8_result = 1;
  79        return 0;
  80}
  81