1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2019 Facebook
3
4 #include <linux/bpf.h>
5 #include <stdint.h>
6 #include "bpf_helpers.h"
7
8 char _license[] SEC("license") = "GPL";
9
10 static volatile struct data {
11 char in[256];
12 char out[256];
13 } data;
14
15 struct core_reloc_mods_output {
16 int a, b, c, d, e, f, g, h;
17 };
18
19 typedef const int int_t;
20 typedef const char *char_ptr_t;
21 typedef const int arr_t[7];
22
23 struct core_reloc_mods_substruct {
24 int x;
25 int y;
26 };
27
28 typedef struct {
29 int x;
30 int y;
31 } core_reloc_mods_substruct_t;
32
33 struct core_reloc_mods {
34 int a;
35 int_t b;
36 char *c;
37 char_ptr_t d;
38 int e[3];
39 arr_t f;
40 struct core_reloc_mods_substruct g;
41 core_reloc_mods_substruct_t h;
42 };
43
44 SEC("raw_tracepoint/sys_enter")
test_core_mods(void * ctx)45 int test_core_mods(void *ctx)
46 {
47 struct core_reloc_mods *in = (void *)&data.in;
48 struct core_reloc_mods_output *out = (void *)&data.out;
49
50 if (BPF_CORE_READ(&out->a, &in->a) ||
51 BPF_CORE_READ(&out->b, &in->b) ||
52 BPF_CORE_READ(&out->c, &in->c) ||
53 BPF_CORE_READ(&out->d, &in->d) ||
54 BPF_CORE_READ(&out->e, &in->e[2]) ||
55 BPF_CORE_READ(&out->f, &in->f[1]) ||
56 BPF_CORE_READ(&out->g, &in->g.x) ||
57 BPF_CORE_READ(&out->h, &in->h.y))
58 return 1;
59
60 return 0;
61 }
62
63