2 # Copyright (c) 2018 Dmitry V. Levin <ldv@altlinux.org>
3 # Copyright (c) 2018-2019 The strace developers.
6 # SPDX-License-Identifier: LGPL-2.1-or-later
8 [ "x${D:-0}" != x1 ] || set -x
14 /* Generated by $0 from $input; do not edit. */
16 #ifdef HAVE_LINUX_BPF_H
17 # include <linux/bpf.h>
18 # include "bpf_attr.h"
19 # include "static_assert.h"
21 # define SoM(type_, member_) (sizeof(((type_ *)0)->member_))
24 for struct in $(sed -n 's/^struct \([^[:space:]]\+_struct\) .*/\1/p' < "$input"); do
26 BPF_*) type_name='union bpf_attr' ;;
27 *) type_name="struct ${struct%_struct}" ;;
29 TYPE_NAME="$(printf %s "$type_name" |tr '[:lower:] ' '[:upper:]_')"
31 enum="$(sed -n 's/^struct '"$struct"' \/\* \([^[:space:]]\+\) \*\/ {.*/\1/p' < "$input")"
32 ENUM="$(printf %s "$enum" |tr '[:lower:]' '[:upper:]')"
33 enum="$enum${enum:+.}"
34 ENUM="$ENUM${ENUM:+_}"
35 sed -n '/^struct '"$struct"' [^{]*{/,/^};$/p' < "$input" |
36 sed -n 's/^[[:space:]]\+[^][;:]*[[:space:]]\([^][[:space:];:]\+\)\(\[[^;:]*\]\)\?;$/\1/p' |
38 FIELD="$(printf %s "$field" |tr '[:lower:]' '[:upper:]')"
41 # ifdef HAVE_${TYPE_NAME}_$ENUM$FIELD
42 static_assert(SoM(struct $struct, $field) == SoM($type_name, $enum$field),
43 "$struct.$field size mismatch");
44 static_assert(offsetof(struct $struct, $field) == offsetof($type_name, $enum$field),
45 "$struct.$field offset mismatch");
46 # endif /* HAVE_${TYPE_NAME}_$ENUM$FIELD */
51 static_assert(${struct}_size == expected_${struct}_size,
52 "${struct}_size mismatch");
59 #endif /* HAVE_LINUX_BPF_H */