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#!/bin/sh
#
# Copyright (c) 2006 "David Kirchner" <dpk@dpk.net>. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
# Generates tables_linux.h
#
set -e
LC_ALL=C; export LC_ALL
if [ -z "$1" ]
then
echo "usage: sh $0 include-dir [output-file]"
exit 1
fi
include_dir=$1
if [ -n "$2" ]; then
output_file="$2"
output_tmp=$(mktemp -u)
exec > "$output_tmp"
fi
all_headers=
#
# Generate a table C #definitions. The including file can define the
# TABLE_NAME(n), TABLE_ENTRY(x), and TABLE_END macros to define what
# the tables map to.
#
gen_table()
{
local name grep file excl filter
name=$1
grep=$2
file=$3
excl=$4
if [ -z "$excl" ]; then
filter="cat"
else
filter="egrep -v"
fi
cat <<_EOF_
TABLE_START(${name})
_EOF_
if [ -e "${include_dir}/${file}" ]; then
all_headers="${all_headers:+${all_headers} }${file}"
egrep "^#[[:space:]]*define[[:space:]]+"${grep}"[[:space:]]*" \
$include_dir/$file | ${filter} ${excl} | \
awk '{ for (i = 1; i <= NF; i++) \
if ($i ~ /define/) \
break; \
++i; \
sub(/LINUX_/, "", $i); \
printf "TABLE_ENTRY(LINUX_%s, %s)\n", $i, $i }'
fi
cat <<_EOF_
TABLE_END
_EOF_
}
cat <<_EOF_
/* This file is auto-generated. */
_EOF_
gen_table "atflags" "LINUX_AT_[A-Z_]+[[:space:]]+[0-9]+" "compat/linux/linux_file.h"
gen_table "clockids" "LINUX_CLOCK_[A-Z_]+[[:space:]]+[0-9]+" "compat/linux/linux_timer.h"
gen_table "clockflags" "LINUX_TIMER_[A-Z_]+[[:space:]]+0x[0-9]+" "compat/linux/linux_timer.h"
gen_table "clockcpuids" "LINUX_CPUCLOCK_[A-Z_]+[[:space:]]+[0-9]+" "compat/linux/linux_timer.h" "_MASK|_MAX"
gen_table "openflags" "LINUX_O_[A-Z_]+[[:space:]]+[0-9]+" "compat/linux/linux_file.h" "O_RDONLY|O_RDWR|O_WRONLY|O_ACCMODE"
gen_table "sigprocmaskhow" "LINUX_SIG_[A-Z]+[[:space:]]+[0-9]+" "compat/linux/linux.h"
# Generate a .depend file for our output file
if [ -n "$output_file" ]; then
depend_tmp=$(mktemp -u)
{
echo "$output_file: \\"
echo "$all_headers" | tr ' ' '\n' | sort -u |
sed -e "s,^, $include_dir/," -e 's,$, \\,'
echo
} > "$depend_tmp"
if cmp -s "$output_tmp" "$output_file"; then
rm -f "$output_tmp" "$depend_tmp"
else
mv -f "$depend_tmp" ".depend.${output_file}"
mv -f "$output_tmp" "$output_file"
fi
fi
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