1#!/bin/sh 2 3if [ $# -lt 2 ] 4then 5 echo "Usage: headers_install.sh OUTDIR SRCDIR [FILES...]" 6 echo 7 echo "Prepares kernel header files for use by user space, by removing" 8 echo "all compiler.h definitions and #includes, removing any" 9 echo "#ifdef __KERNEL__ sections, and putting __underscores__ around" 10 echo "asm/inline/volatile keywords." 11 echo 12 echo "OUTDIR: directory to write each userspace header FILE to." 13 echo "SRCDIR: source directory where files are picked." 14 echo "FILES: list of header files to operate on." 15 16 exit 1 17fi 18 19# Grab arguments 20 21OUTDIR="$1" 22shift 23SRCDIR="$1" 24shift 25 26# Iterate through files listed on command line 27 28FILE= 29trap 'rm -f "$OUTDIR/$FILE" "$OUTDIR/$FILE.sed"' EXIT 30for i in "$@" 31do 32 FILE="$(basename "$i")" 33 sed -r \ 34 -e 's/([ \t(])(__user|__force|__iomem)[ \t]/\1/g' \ 35 -e 's/__attribute_const__([ \t]|$)/\1/g' \ 36 -e 's@^#include <linux/compiler.h>@@' \ 37 -e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \ 38 -e 's/(^|[ \t(])(inline|asm|volatile)([ \t(]|$)/\1__\2__\3/g' \ 39 -e 's@#(ifndef|define|endif[ \t]*/[*])[ \t]*_UAPI@#\1 @' \ 40 "$SRCDIR/$i" > "$OUTDIR/$FILE.sed" || exit 1 41 scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ "$OUTDIR/$FILE.sed" \ 42 > "$OUTDIR/$FILE" 43 [ $? -gt 1 ] && exit 1 44 rm -f "$OUTDIR/$FILE.sed" 45done 46trap - EXIT 47