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mkbuiltins revision 1.21 
      1 #!/bin/sh -
      2 #	$NetBSD: mkbuiltins,v 1.21 2004/06/06 07:03:11 christos Exp $
      3 #
      4 # Copyright (c) 1991, 1993
      5 #	The Regents of the University of California.  All rights reserved.
      6 #
      7 # This code is derived from software contributed to Berkeley by
      8 # Kenneth Almquist.
      9 #
     10 # Redistribution and use in source and binary forms, with or without
     11 # modification, are permitted provided that the following conditions
     12 # are met:
     13 # 1. Redistributions of source code must retain the above copyright
     14 #    notice, this list of conditions and the following disclaimer.
     15 # 2. Redistributions in binary form must reproduce the above copyright
     16 #    notice, this list of conditions and the following disclaimer in the
     17 #    documentation and/or other materials provided with the distribution.
     18 # 3. Neither the name of the University nor the names of its contributors
     19 #    may be used to endorse or promote products derived from this software
     20 #    without specific prior written permission.
     21 #
     22 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25 # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32 # SUCH DAMAGE.
     33 #
     34 #	@(#)mkbuiltins	8.2 (Berkeley) 5/4/95
     35 
     36 havehist=1
     37 if [ "X$1" = "X-h" ]; then
     38 	havehist=0
     39 	shift
     40 fi
     41 
     42 shell=$1
     43 builtins=$2
     44 objdir=$3
     45 
     46 havejobs=0
     47 if grep '^#define JOBS[	 ]*1' ${shell} > /dev/null
     48 then
     49 	havejobs=1
     50 fi
     51 
     52 exec <$builtins 3> ${objdir}/builtins.c 4> ${objdir}/builtins.h
     53 
     54 echo '/*
     55  * This file was generated by the mkbuiltins program.
     56  */
     57 
     58 #include "shell.h"
     59 #include "builtins.h"
     60 
     61 const struct builtincmd builtincmd[] = {
     62 ' >&3
     63 
     64 echo '/*
     65  * This file was generated by the mkbuiltins program.
     66  */
     67 
     68 #include <sys/cdefs.h>
     69 
     70 struct builtincmd {
     71       const char *name;
     72       int (*builtin)(int, char **);
     73 };
     74 
     75 extern const struct builtincmd builtincmd[];
     76 extern const struct builtincmd splbltincmd[];
     77 
     78 ' >&4
     79 
     80 specials=
     81 
     82 while read line
     83 do
     84 	set -- $line
     85 	[ -z "$1" ] && continue
     86 	case "$1" in
     87 	\#if*|\#def*|\#end*)
     88 		echo $line >&3
     89 		echo $line >&4
     90 		continue
     91 		;;
     92 	esac
     93 	l1="${line###}"
     94 	[ "$l1" != "$line" ] && continue
     95 
     96 
     97 	func=$1
     98 	shift
     99 	[ x"$1" = x'-j' ] && {
    100 		[ $havejobs = 0 ] && continue
    101 		shift
    102 	}
    103 	[ x"$1" = x'-h' ] && {
    104 		[ $havehist = 0 ] && continue
    105 		shift
    106 	}
    107 	echo 'int '"$func"'(int, char **);' >&4
    108 	while
    109 		[ $# != 0 -a "$1" != '#' ]
    110 	do
    111 		[ "$1" = '-s' ] && {
    112 			specials="$specials $2 $func"
    113 			shift 2
    114 			continue;
    115 		}
    116 		[ "$1" = '-u' ] && shift
    117 		echo '	{ "'$1'",	'"$func"' },' >&3
    118 		shift
    119 	done
    120 done
    121 
    122 echo '	{ 0, 0 },' >&3
    123 echo '};' >&3
    124 echo >&3
    125 echo 'const struct builtincmd splbltincmd[] = {' >&3
    126 
    127 set -- $specials
    128 while
    129 	[ $# != 0 ]
    130 do
    131 	echo '	{ "'$1'",	'"$2"' },' >&3
    132 	shift 2
    133 done
    134 
    135 echo '	{ 0, 0 },' >&3
    136 echo "};" >&3
    137