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Commit 555187a8 authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kbuild: simplify scripts/headers_install.sh 



Now that headers_install.sh is invoked per file, remove the for-loop
in the shell script.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent a5bae54c

scripts/Makefile.headersinst

+1 −1
Original line number Diff line number Diff line
@@ -58,7 +58,7 @@ $(if $(new-dirs), $(shell mkdir -p $(new-dirs))) 
ifndef HDRCHECK



quiet_cmd_install = HDRINST $@

      cmd_install = $(CONFIG_SHELL) $(srctree)/scripts/headers_install.sh $(@D) $(<D) $(@F)

      cmd_install = $(CONFIG_SHELL) $(srctree)/scripts/headers_install.sh $< $@



$(src-headers): $(dst)/%.h: $(src)/%.h $(srctree)/scripts/headers_install.sh FORCE

	$(call if_changed,install)

scripts/headers_install.sh

+20 −28
Original line number Diff line number Diff line 
#!/bin/sh

# SPDX-License-Identifier: GPL-2.0



if [ $# -lt 2 ]

if [ $# -ne 2 ]

then

	echo "Usage: headers_install.sh OUTDIR SRCDIR [FILES...]"

	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 "OUTDIR: directory to write each userspace header FILE to."

	echo "SRCDIR: source directory where files are picked."

	echo "FILES:  list of header files to operate on."

	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



OUTDIR="$1"

shift

SRCDIR="$1"

shift

trap 'rm -f $OUTFILE $TMPFILE' EXIT



# Iterate through files listed on command line

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



FILE=

trap 'rm -f "$OUTDIR/$FILE" "$OUTDIR/$FILE.sed"' EXIT

for i in "$@"

do

	FILE="$(basename "$i")"

	sed -E \

		-e 's/([[:space:](])(__user|__force|__iomem)[[:space:]]/\1/g' \

		-e 's/__attribute_const__([[:space:]]|$)/\1/g' \

		-e 's@^#include <linux/compiler(|_types).h>@@' \

		-e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \

		-e 's/(^|[[:space:](])(inline|asm|volatile)([[:space:](]|$)/\1__\2__\3/g' \

		-e 's@#(ifndef|define|endif[[:space:]]*/[*])[[:space:]]*_UAPI@#\1 @' \

		"$SRCDIR/$i" > "$OUTDIR/$FILE.sed" || exit 1

	scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ "$OUTDIR/$FILE.sed" \

		> "$OUTDIR/$FILE"

scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ $TMPFILE > $OUTFILE

[ $? -gt 1 ] && exit 1

	rm -f "$OUTDIR/$FILE.sed"

done



rm -f $TMPFILE

trap - EXIT