1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (c) 2019 Facebook */
3
4#ifndef _TEST_BTF_H
5#define _TEST_BTF_H
6
7#define BTF_END_RAW 0xdeadbeef
8
9#define BTF_INFO_ENC(kind, kind_flag, vlen) \
10 ((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN))
11
12#define BTF_TYPE_ENC(name, info, size_or_type) \
13 (name), (info), (size_or_type)
14
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
21#define BTF_FWD_ENC(name, kind_flag) \
22 BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_FWD, kind_flag, 0), 0)
23
24#define BTF_ARRAY_ENC(type, index_type, nr_elems) \
25 (type), (index_type), (nr_elems)
26#define BTF_TYPE_ARRAY_ENC(type, index_type, nr_elems) \
27 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 0), \
28 BTF_ARRAY_ENC(type, index_type, nr_elems)
29
30#define BTF_STRUCT_ENC(name, nr_elems, sz) \
31 BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, nr_elems), sz)
32
33#define BTF_UNION_ENC(name, nr_elems, sz) \
34 BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_UNION, 0, nr_elems), sz)
35
36#define BTF_VAR_ENC(name, type, linkage) \
37 BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), type), (linkage)
38#define BTF_VAR_SECINFO_ENC(type, offset, size) \
39 (type), (offset), (size)
40
41#define BTF_MEMBER_ENC(name, type, bits_offset) \
42 (name), (type), (bits_offset)
43#define BTF_ENUM_ENC(name, val) (name), (val)
44#define BTF_ENUM64_ENC(name, val_lo32, val_hi32) (name), (val_lo32), (val_hi32)
45#define BTF_MEMBER_OFFSET(bitfield_size, bits_offset) \
46 ((bitfield_size) << 24 | (bits_offset))
47
48#define BTF_TYPEDEF_ENC(name, type) \
49 BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), type)
50
51#define BTF_PTR_ENC(type) \
52 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), type)
53
54#define BTF_CONST_ENC(type) \
55 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), type)
56
57#define BTF_VOLATILE_ENC(type) \
58 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), type)
59
60#define BTF_RESTRICT_ENC(type) \
61 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_RESTRICT, 0, 0), type)
62
63#define BTF_FUNC_PROTO_ENC(ret_type, nargs) \
64 BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, nargs), ret_type)
65
66#define BTF_FUNC_PROTO_ARG_ENC(name, type) \
67 (name), (type)
68
69#define BTF_FUNC_ENC(name, func_proto) \
70 BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_FUNC, 0, 0), func_proto)
71
72#define BTF_TYPE_FLOAT_ENC(name, sz) \
73 BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_FLOAT, 0, 0), sz)
74
75#define BTF_DECL_ATTR_ENC(value, type, component_idx) \
76 BTF_TYPE_ENC(value, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 1, 0), type), (component_idx)
77
78#define BTF_DECL_TAG_ENC(value, type, component_idx) \
79 BTF_TYPE_ENC(value, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), type), (component_idx)
80
81#define BTF_TYPE_ATTR_ENC(value, type) \
82 BTF_TYPE_ENC(value, BTF_INFO_ENC(BTF_KIND_TYPE_TAG, 1, 0), type)
83
84#define BTF_TYPE_TAG_ENC(value, type) \
85 BTF_TYPE_ENC(value, BTF_INFO_ENC(BTF_KIND_TYPE_TAG, 0, 0), type)
86
87#endif /* _TEST_BTF_H */
88

source code of linux/tools/testing/selftests/bpf/test_btf.h