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/bpf_helpers.h> |
7 | #include <bpf/bpf_core_read.h> |
8 | |
9 | char _license[] SEC("license" ) = "GPL" ; |
10 | |
11 | struct { |
12 | char in[256]; |
13 | char out[256]; |
14 | } data = {}; |
15 | |
16 | struct core_reloc_ptr_as_arr { |
17 | int a; |
18 | }; |
19 | |
20 | #define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src) |
21 | |
22 | SEC("raw_tracepoint/sys_enter" ) |
23 | int test_core_ptr_as_arr(void *ctx) |
24 | { |
25 | struct core_reloc_ptr_as_arr *in = (void *)&data.in; |
26 | struct core_reloc_ptr_as_arr *out = (void *)&data.out; |
27 | |
28 | if (CORE_READ(&out->a, &in[2].a)) |
29 | return 1; |
30 | |
31 | return 0; |
32 | } |
33 | |
34 | |