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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" | |
7db3822a | 7 | #include "bpf_core_read.h" |
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8 | |
9 | char _license[] SEC("license") = "GPL"; | |
10 | ||
393cdfbe | 11 | struct { |
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12 | char in[256]; |
13 | char out[256]; | |
393cdfbe | 14 | } data = {}; |
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15 | |
16 | struct core_reloc_ptr_as_arr { | |
17 | int a; | |
18 | }; | |
19 | ||
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20 | #define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src) |
21 | ||
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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 | ||
694731e8 | 28 | if (CORE_READ(&out->a, &in[2].a)) |
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29 | return 1; |
30 | ||
31 | return 0; | |
32 | } | |
33 |