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_ints {
17 uint8_t u8_field;
18 int8_t s8_field;
19 uint16_t u16_field;
20 int16_t s16_field;
21 uint32_t u32_field;
22 int32_t s32_field;
23 uint64_t u64_field;
24 int64_t s64_field;
25 };
26
27 #define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
28
29 SEC("raw_tracepoint/sys_enter")
test_core_ints(void * ctx)30 int test_core_ints(void *ctx)
31 {
32 struct core_reloc_ints *in = (void *)&data.in;
33 struct core_reloc_ints *out = (void *)&data.out;
34
35 if (CORE_READ(&out->u8_field, &in->u8_field) ||
36 CORE_READ(&out->s8_field, &in->s8_field) ||
37 CORE_READ(&out->u16_field, &in->u16_field) ||
38 CORE_READ(&out->s16_field, &in->s16_field) ||
39 CORE_READ(&out->u32_field, &in->u32_field) ||
40 CORE_READ(&out->s32_field, &in->s32_field) ||
41 CORE_READ(&out->u64_field, &in->u64_field) ||
42 CORE_READ(&out->s64_field, &in->s64_field))
43 return 1;
44
45 return 0;
46 }
47
48