2 # Copyright (c) 2018 Dmitry V. Levin <ldv@altlinux.org>
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
8 # 1. Redistributions of source code must retain the above copyright
9 # notice, this list of conditions and the following disclaimer.
10 # 2. Redistributions in binary form must reproduce the above copyright
11 # notice, this list of conditions and the following disclaimer in the
12 # documentation and/or other materials provided with the distribution.
13 # 3. The name of the author may not be used to endorse or promote products
14 # derived from this software without specific prior written permission.
16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 /* Generated by $0 from $input; do not edit. */
33 #ifdef HAVE_LINUX_BPF_H
34 # include <linux/bpf.h>
35 # include "bpf_attr.h"
36 # include "static_assert.h"
38 # define SoM(type_, member_) (sizeof(((type_ *)0)->member_))
41 for struct in $(sed -n 's/^struct \([^[:space:]]\+_struct\) .*/\1/p' < "$input"); do
43 BPF_*) type_name='union bpf_attr' ;;
44 *) type_name="struct ${struct%_struct}" ;;
46 TYPE_NAME="$(printf %s "$type_name" |tr '[:lower:] ' '[:upper:]_')"
48 enum="$(sed -n 's/^struct '"$struct"' \/\* \([^[:space:]]\+\) \*\/ {.*/\1/p' < "$input")"
49 ENUM="$(printf %s "$enum" |tr '[:lower:]' '[:upper:]')"
50 enum="$enum${enum:+.}"
51 ENUM="$ENUM${ENUM:+_}"
52 sed -n '/^struct '"$struct"' [^{]*{/,/^};$/p' < "$input" |
53 sed -n 's/^[[:space:]]\+[^][;]*[[:space:]]\([^][[:space:];]\+\)\(\[[^;]*\]\)\?;$/\1/p' |
55 FIELD="$(printf %s "$field" |tr '[:lower:]' '[:upper:]')"
58 # ifdef HAVE_${TYPE_NAME}_$ENUM$FIELD
59 static_assert(SoM(struct $struct, $field) == SoM($type_name, $enum$field),
60 "$struct.$field size mismatch");
61 static_assert(offsetof(struct $struct, $field) == offsetof($type_name, $enum$field),
62 "$struct.$field offset mismatch");
63 # endif /* HAVE_${TYPE_NAME}_$ENUM$FIELD */
68 static_assert(${struct}_size == expected_${struct}_size,
69 "${struct}_size mismatch");
76 #endif /* HAVE_LINUX_BPF_H */