| #!/bin/sh |
| # SPDX-License-Identifier: GPL-2.0 |
| |
| if [ $# -ne 2 ] |
| then |
| echo "Usage: headers_install.sh INFILE OUTFILE" |
| echo |
| echo "Prepares kernel header files for use by user space, by removing" |
| echo "all compiler.h definitions and #includes, removing any" |
| echo "#ifdef __KERNEL__ sections, and putting __underscores__ around" |
| echo "asm/inline/volatile keywords." |
| echo |
| echo "INFILE: header file to operate on" |
| echo "OUTFILE: output file which the processed header is writen to" |
| |
| exit 1 |
| fi |
| |
| # Grab arguments |
| INFILE=$1 |
| OUTFILE=$2 |
| TMPFILE=$OUTFILE.tmp |
| |
| trap 'rm -f $OUTFILE $TMPFILE' EXIT |
| |
| sed -E -e ' |
| s/([[:space:](])(__user|__force|__iomem)[[:space:]]/\1/g |
| s/__attribute_const__([[:space:]]|$)/\1/g |
| s@^#include <linux/compiler(|_types).h>@@ |
| s/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g |
| s/(^|[[:space:](])(inline|asm|volatile)([[:space:](]|$)/\1__\2__\3/g |
| s@#(ifndef|define|endif[[:space:]]*/[*])[[:space:]]*_UAPI@#\1 @ |
| ' $INFILE > $TMPFILE || exit 1 |
| |
| scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ $TMPFILE > $OUTFILE |
| [ $? -gt 1 ] && exit 1 |
| |
| rm -f $TMPFILE |
| trap - EXIT |
