Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
2
3/*
4 * Internal libbpf helpers.
5 *
6 * Copyright (c) 2019 Facebook
7 */
8
9#ifndef __LIBBPF_LIBBPF_INTERNAL_H
10#define __LIBBPF_LIBBPF_INTERNAL_H
11
12#define BTF_INFO_ENC(kind, kind_flag, vlen) \
13 ((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN))
14#define BTF_TYPE_ENC(name, info, size_or_type) (name), (info), (size_or_type)
15#define BTF_INT_ENC(encoding, bits_offset, nr_bits) \
16 ((encoding) << 24 | (bits_offset) << 16 | (nr_bits))
17#define BTF_TYPE_INT_ENC(name, encoding, bits_offset, bits, sz) \
18 BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz), \
19 BTF_INT_ENC(encoding, bits_offset, bits)
20#define BTF_MEMBER_ENC(name, type, bits_offset) (name), (type), (bits_offset)
21#define BTF_PARAM_ENC(name, type) (name), (type)
22#define BTF_VAR_SECINFO_ENC(type, offset, size) (type), (offset), (size)
23
24int libbpf__probe_raw_btf(const char *raw_types, size_t types_len,
25 const char *str_sec, size_t str_len);
26
27#endif /* __LIBBPF_LIBBPF_INTERNAL_H */