ca12a0b88a
magic string " \t\n" all over the place, slightly improved syntax error messages, restructured some of the code for clarity, don't allow IFS to be imported through the environment, and remove the (never) conditionally compiled ATTY option. Apart from one or two syntax error messages, and ignoring IFS if present in the environment, this is intended to have no user visible changes. (from kre@)
171 lines
3.9 KiB
Bash
Executable File
171 lines
3.9 KiB
Bash
Executable File
#! /bin/sh
|
|
# $NetBSD: mkinit.sh,v 1.7 2016/03/27 14:34:46 christos Exp $
|
|
|
|
# Copyright (c) 2003 The NetBSD Foundation, Inc.
|
|
# All rights reserved.
|
|
#
|
|
# This code is derived from software contributed to The NetBSD Foundation
|
|
# by David Laight.
|
|
#
|
|
# 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
|
|
srcs="$*"
|
|
|
|
nl='
|
|
'
|
|
openparen='('
|
|
backslash='\'
|
|
|
|
includes=' "shell.h" "mystring.h" "init.h" '
|
|
defines=
|
|
decles=
|
|
event_init=
|
|
event_reset=
|
|
event_shellproc=
|
|
|
|
for src in $srcs; do
|
|
exec <$src
|
|
decnl="$nl"
|
|
while IFS=; read -r line; do
|
|
[ "$line" = x ]
|
|
case "$line " in
|
|
INIT["{ "]* ) event=init;;
|
|
RESET["{ "]* ) event=reset;;
|
|
SHELLPROC["{ "]* ) event=shellproc;;
|
|
INCLUDE[\ \ ]* )
|
|
IFS=' '
|
|
set -- $line
|
|
# ignore duplicates
|
|
[ "${includes}" != "${includes% $2 *}" ] && continue
|
|
includes="$includes$2 "
|
|
continue
|
|
;;
|
|
MKINIT\ )
|
|
# struct declaration
|
|
decles="$decles$nl"
|
|
while
|
|
read -r line
|
|
decles="${decles}${line}${nl}"
|
|
[ "$line" != "};" ]
|
|
do
|
|
:
|
|
done
|
|
decnl="$nl"
|
|
continue
|
|
;;
|
|
MKINIT["{ "]* )
|
|
# strip initialiser
|
|
def=${line#MKINIT}
|
|
comment="${def#*;}"
|
|
def="${def%;$comment}"
|
|
def="${def%%=*}"
|
|
def="${def% }"
|
|
decles="${decles}${decnl}extern${def};${comment}${nl}"
|
|
decnl=
|
|
continue
|
|
;;
|
|
\#define[\ \ ]* )
|
|
IFS=' '
|
|
set -- $line
|
|
# Ignore those with arguments
|
|
[ "$2" = "${2##*$openparen}" ] || continue
|
|
# and multiline definitions
|
|
[ "$line" = "${line%$backslash}" ] || continue
|
|
defines="${defines}#undef $2${nl}${line}${nl}"
|
|
continue
|
|
;;
|
|
* ) continue;;
|
|
esac
|
|
# code for events
|
|
ev="${nl} /* from $src: */${nl} {${nl}"
|
|
# Indent the text by an extra <tab>
|
|
while
|
|
read -r line
|
|
[ "$line" != "}" ]
|
|
do
|
|
[ -n "$line" -a "$line" = "${line###}" ] &&
|
|
line=" $line"
|
|
ev="${ev}${line}${nl}"
|
|
done
|
|
ev="${ev} }${nl}"
|
|
eval event_$event=\"\$event_$event\$ev\"
|
|
done
|
|
done
|
|
|
|
exec >init.c.tmp
|
|
|
|
echo "/*"
|
|
echo " * This file was generated by the mkinit program."
|
|
echo " */"
|
|
echo
|
|
|
|
IFS=' '
|
|
for f in $includes; do
|
|
echo "#include $f"
|
|
done
|
|
|
|
echo
|
|
echo
|
|
echo
|
|
echo "$defines"
|
|
echo
|
|
echo "$decles"
|
|
echo
|
|
echo
|
|
echo "/*"
|
|
echo " * Initialization code."
|
|
echo " */"
|
|
echo
|
|
echo "void"
|
|
echo "init(void)"
|
|
echo "{"
|
|
echo "${event_init}"
|
|
echo "}"
|
|
echo
|
|
echo
|
|
echo
|
|
echo "/*"
|
|
echo " * This routine is called when an error or an interrupt occurs in an"
|
|
echo " * interactive shell and control is returned to the main command loop."
|
|
echo " */"
|
|
echo
|
|
echo "void"
|
|
echo "reset(void)"
|
|
echo "{"
|
|
echo "${event_reset}"
|
|
echo "}"
|
|
echo
|
|
echo
|
|
echo
|
|
echo "/*"
|
|
echo " * This routine is called to initialize the shell to run a shell procedure."
|
|
echo " */"
|
|
echo
|
|
echo "void"
|
|
echo "initshellproc(void)"
|
|
echo "{"
|
|
echo "${event_shellproc}"
|
|
echo "}"
|
|
|
|
exec >&-
|
|
mv init.c.tmp init.c
|