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
9char _license[] SEC("license") = "GPL";
10
11struct {
12	char in[256];
13	char out[256];
14} data = {};
15
16struct 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
29SEC("raw_tracepoint/sys_enter")
30int 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