Merge tag 'asoc-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
[sfrench/cifs-2.6.git] / scripts / headers_install.sh
1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3
4 if [ $# -lt 2 ]
5 then
6         echo "Usage: headers_install.sh OUTDIR SRCDIR [FILES...]"
7         echo
8         echo "Prepares kernel header files for use by user space, by removing"
9         echo "all compiler.h definitions and #includes, removing any"
10         echo "#ifdef __KERNEL__ sections, and putting __underscores__ around"
11         echo "asm/inline/volatile keywords."
12         echo
13         echo "OUTDIR: directory to write each userspace header FILE to."
14         echo "SRCDIR: source directory where files are picked."
15         echo "FILES:  list of header files to operate on."
16
17         exit 1
18 fi
19
20 # Grab arguments
21
22 OUTDIR="$1"
23 shift
24 SRCDIR="$1"
25 shift
26
27 # Iterate through files listed on command line
28
29 FILE=
30 trap 'rm -f "$OUTDIR/$FILE" "$OUTDIR/$FILE.sed"' EXIT
31 for i in "$@"
32 do
33         FILE="$(basename "$i")"
34         sed -E \
35                 -e 's/([[:space:](])(__user|__force|__iomem)[[:space:]]/\1/g' \
36                 -e 's/__attribute_const__([[:space:]]|$)/\1/g' \
37                 -e 's@^#include <linux/compiler(|_types).h>@@' \
38                 -e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \
39                 -e 's/(^|[[:space:](])(inline|asm|volatile)([[:space:](]|$)/\1__\2__\3/g' \
40                 -e 's@#(ifndef|define|endif[[:space:]]*/[*])[[:space:]]*_UAPI@#\1 @' \
41                 "$SRCDIR/$i" > "$OUTDIR/$FILE.sed" || exit 1
42         scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ "$OUTDIR/$FILE.sed" \
43                 > "$OUTDIR/$FILE"
44         [ $? -gt 1 ] && exit 1
45         rm -f "$OUTDIR/$FILE.sed"
46 done
47 trap - EXIT