1#!/bin/sh 2 3if [ $# -lt 1 ] 4then 5 echo "Usage: headers_install.sh OUTDIR [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 "FILES: list of header files to operate on." 14 15 exit 1 16fi 17 18# Grab arguments 19 20OUTDIR="$1" 21shift 22 23# Iterate through files listed on command line 24 25FILE= 26trap 'rm -f "$OUTDIR/$FILE" "$OUTDIR/$FILE.sed"' EXIT 27for i in "$@" 28do 29 FILE="$(basename "$i")" 30 sed -r \ 31 -e 's/([ \t(])(__user|__force|__iomem)[ \t]/\1/g' \ 32 -e 's/__attribute_const__([ \t]|$)/\1/g' \ 33 -e 's@^#include <linux/compiler.h>@@' \ 34 -e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \ 35 -e 's/(^|[ \t(])(inline|asm|volatile)([ \t(]|$)/\1__\2__\3/g' \ 36 -e 's@#(ifndef|define|endif[ \t]*/[*])[ \t]*_UAPI@#\1 @' \ 37 "$i" > "$OUTDIR/$FILE.sed" || exit 1 38 scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ "$OUTDIR/$FILE.sed" \ 39 > "$OUTDIR/$FILE" 40 [ $? -gt 1 ] && exit 1 41 rm -f "$OUTDIR/$FILE.sed" 42done 43trap - EXIT 44