1#! /bin/sh 2# $NetBSD: mknodes.sh,v 1.2 2008/04/29 06:53:00 martin Exp $ 3 4# Copyright (c) 2003 The NetBSD Foundation, Inc. 5# All rights reserved. 6# 7# This code is derived from software contributed to The NetBSD Foundation 8# by David Laight. 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# 19# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29# POSSIBILITY OF SUCH DAMAGE. 30 31nodetypes=$1 32nodes_pat=$2 33objdir="$3" 34 35exec <$nodetypes 36exec >$objdir/nodes.h.tmp 37 38echo "/*" 39echo " * This file was generated by mknodes.sh" 40echo " */" 41echo 42 43tagno=0 44while IFS=; read -r line; do 45 line="${line%%#*}" 46 IFS=' ' 47 set -- $line 48 IFS= 49 [ -z "$2" ] && continue 50 case "$line" in 51 [" "]* ) 52 IFS=' ' 53 [ $field = 0 ] && struct_list="$struct_list $struct" 54 eval field_${struct}_$field=\"\$*\" 55 eval numfld_$struct=\$field 56 field=$(($field + 1)) 57 ;; 58 * ) 59 define=$1 60 struct=$2 61 echo "#define $define $tagno" 62 tagno=$(($tagno + 1)) 63 eval define_$struct=\"\$define_$struct \$define\" 64 struct_define="$struct_define $struct" 65 field=0 66 ;; 67 esac 68done 69 70echo 71 72IFS=' ' 73for struct in $struct_list; do 74 echo 75 echo 76 echo "struct $struct {" 77 field=0 78 while 79 eval line=\"\$field_${struct}_$field\" 80 field=$(($field + 1)) 81 [ -n "$line" ] 82 do 83 IFS=' ' 84 set -- $line 85 name=$1 86 case $2 in 87 nodeptr ) type="union node *";; 88 nodelist ) type="struct nodelist *";; 89 string ) type="char *";; 90 int ) type="int ";; 91 * ) name=; shift 2; type="$*";; 92 esac 93 echo " $type$name;" 94 done 95 echo "};" 96done 97 98echo 99echo 100echo "union node {" 101echo " int type;" 102for struct in $struct_list; do 103 echo " struct $struct $struct;" 104done 105echo "};" 106echo 107echo 108echo "struct nodelist {" 109echo " struct nodelist *next;" 110echo " union node *n;" 111echo "};" 112echo 113echo 114echo "union node *copyfunc(union node *);" 115echo "void freefunc(union node *);" 116 117mv $objdir/nodes.h.tmp $objdir/nodes.h || exit 1 118 119exec <$nodes_pat 120exec >$objdir/nodes.c.tmp 121 122echo "/*" 123echo " * This file was generated by mknodes.sh" 124echo " */" 125echo 126 127while IFS=; read -r line; do 128 IFS=' ' 129 set -- $line 130 IFS= 131 case "$1" in 132 '%SIZES' ) 133 echo "static const short nodesize[$tagno] = {" 134 IFS=' ' 135 for struct in $struct_define; do 136 echo " SHELL_ALIGN(sizeof (struct $struct))," 137 done 138 echo "};" 139 ;; 140 '%CALCSIZE' ) 141 echo " if (n == NULL)" 142 echo " return;" 143 echo " funcblocksize += nodesize[n->type];" 144 echo " switch (n->type) {" 145 IFS=' ' 146 for struct in $struct_list; do 147 eval defines=\"\$define_$struct\" 148 for define in $defines; do 149 echo " case $define:" 150 done 151 eval field=\$numfld_$struct 152 while 153 [ $field != 0 ] 154 do 155 eval line=\"\$field_${struct}_$field\" 156 field=$(($field - 1)) 157 IFS=' ' 158 set -- $line 159 name=$1 160 cl=")" 161 case $2 in 162 nodeptr ) fn=calcsize;; 163 nodelist ) fn=sizenodelist;; 164 string ) fn="funcstringsize += strlen" 165 cl=") + 1";; 166 * ) continue;; 167 esac 168 echo " ${fn}(n->$struct.$name${cl};" 169 done 170 echo " break;" 171 done 172 echo " };" 173 ;; 174 '%COPY' ) 175 echo " if (n == NULL)" 176 echo " return NULL;" 177 echo " new = funcblock;" 178 echo " funcblock = (char *) funcblock + nodesize[n->type];" 179 echo " switch (n->type) {" 180 IFS=' ' 181 for struct in $struct_list; do 182 eval defines=\"\$define_$struct\" 183 for define in $defines; do 184 echo " case $define:" 185 done 186 eval field=\$numfld_$struct 187 while 188 [ $field != 0 ] 189 do 190 eval line=\"\$field_${struct}_$field\" 191 field=$(($field - 1)) 192 IFS=' ' 193 set -- $line 194 name=$1 195 case $2 in 196 nodeptr ) fn="copynode(";; 197 nodelist ) fn="copynodelist(";; 198 string ) fn="nodesavestr(";; 199 int ) fn=;; 200 * ) continue;; 201 esac 202 f="$struct.$name" 203 echo " new->$f = ${fn}n->$f${fn:+)};" 204 done 205 echo " break;" 206 done 207 echo " };" 208 echo " new->type = n->type;" 209 ;; 210 * ) echo "$line";; 211 esac 212done 213 214mv $objdir/nodes.c.tmp $objdir/nodes.c || exit 1 215