mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-09 23:36:23 +09:00
1fe7d2bb24
* Use BREs where EREs aren't necessary.
* Pass -E instead of -r to use EREs. This will be standardized in the
next POSIX revision[0]. GNU sed supports this since 4.2 (May 2009),
and busybox since 1.22.0 (Jan 2014).
* Use the [:space:] character class instead of ` \t` in bracket
expressions. In bracket expressions, POSIX says that <backslash> loses
its special meaning, so a conforming implementation cannot expand \t
to <tab>[1].
* In BREs, use interval expressions (\{n,m\}) instead of non-standard
features like \+ and \?.
* Use a loop instead of -s flag.
There are still plenty of other cases of non-standard sed invocations
(use of ERE features in BREs, in-place editing), but this fixes some
core ones.
[0] http://austingroupbugs.net/view.php?id=528
[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_03_05
Signed-off-by: Michael Forney <forney@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
48 lines
1.4 KiB
Bash
Executable File
48 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
if [ $# -lt 2 ]
|
|
then
|
|
echo "Usage: headers_install.sh OUTDIR SRCDIR [FILES...]"
|
|
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."
|
|
|
|
exit 1
|
|
fi
|
|
|
|
# Grab arguments
|
|
|
|
OUTDIR="$1"
|
|
shift
|
|
SRCDIR="$1"
|
|
shift
|
|
|
|
# Iterate through files listed on command line
|
|
|
|
FILE=
|
|
trap 'rm -f "$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"
|
|
[ $? -gt 1 ] && exit 1
|
|
rm -f "$OUTDIR/$FILE.sed"
|
|
done
|
|
trap - EXIT
|