| 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_arrays_output { |
| 17 | int a2; |
| 18 | char b123; |
| 19 | int c1c; |
| 20 | int d00d; |
| 21 | int f01c; |
| 22 | }; |
| 23 | |
| 24 | struct core_reloc_arrays_substruct { |
| 25 | int c; |
| 26 | int d; |
| 27 | }; |
| 28 | |
| 29 | struct core_reloc_arrays { |
| 30 | int a[5]; |
| 31 | char b[2][3][4]; |
| 32 | struct core_reloc_arrays_substruct c[3]; |
| 33 | struct core_reloc_arrays_substruct d[1][2]; |
| 34 | struct core_reloc_arrays_substruct f[][2]; |
| 35 | }; |
| 36 | |
| 37 | #define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src) |
| 38 | |
| 39 | SEC("raw_tracepoint/sys_enter") |
| 40 | int test_core_arrays(void *ctx) |
| 41 | { |
| 42 | struct core_reloc_arrays *in = (void *)&data.in; |
| 43 | struct core_reloc_arrays_output *out = (void *)&data.out; |
| 44 | |
| 45 | if (CORE_READ(&out->a2, &in->a[2])) |
| 46 | return 1; |
| 47 | if (CORE_READ(&out->b123, &in->b[1][2][3])) |
| 48 | return 1; |
| 49 | if (CORE_READ(&out->c1c, &in->c[1].c)) |
| 50 | return 1; |
| 51 | if (CORE_READ(&out->d00d, &in->d[0][0].d)) |
| 52 | return 1; |
| 53 | if (CORE_READ(&out->f01c, &in->f[0][1].c)) |
| 54 | return 1; |
| 55 | |
| 56 | return 0; |
| 57 | } |
| 58 | |
| 59 |