1#!/bin/sh - 2 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# $FreeBSD$ 36 37temp=`mktemp -t ka` 38havehist=1 39if [ "X$1" = "X-h" ]; then 40 havehist=0 41 shift 42fi 43srcdir=$1 44havejobs=0 45if grep '^#define[ ]*JOBS[ ]*1' $srcdir/shell.h > /dev/null 46then havejobs=1 47fi 48exec > builtins.c 49cat <<\! 50/* 51 * This file was generated by the mkbuiltins program. 52 */ 53 54#include <stdlib.h> 55#include "shell.h" 56#include "builtins.h" 57 58! 59awk '/^[^#]/ {if(('$havejobs' || $2 != "-j") && ('$havehist' || $2 != "-h")) \ 60 print $0}' $srcdir/builtins.def | sed 's/-[hj]//' > $temp 61echo 'int (*const builtinfunc[])(int, char **) = {' 62awk '/^[^#]/ { printf "\t%s,\n", $1}' $temp 63echo '}; 64 65const unsigned char builtincmd[] = {' 66awk '{ for (i = 2 ; i <= NF ; i++) { 67 if ($i == "-s") { 68 spc = 1; 69 } else if ($i == "-n") { 70 # Handled later for builtins.h 71 continue 72 } else { 73 printf "\t\"\\%03o\\%03o%s\"\n", length($i), (spc ? 128 : 0) + NR-1, $i 74 spc = 0; 75 } 76 }}' $temp 77echo '};' 78 79exec > builtins.h 80cat <<\! 81/* 82 * This file was generated by the mkbuiltins program. 83 */ 84 85#include <sys/cdefs.h> 86! 87tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ < $temp | 88 awk '{ printf "#define %s %d\n", $1, NR-1}' 89echo ' 90#define BUILTIN_SPECIAL 0x80 91 92extern int (*const builtinfunc[])(int, char **); 93extern const unsigned char builtincmd[]; 94' 95awk '{ printf "int %s(int, char **);\n", $1}' $temp 96 97# Build safe_builtin_always() 98cat <<EOF 99 100static inline int 101safe_builtin_always(int idx) 102{ 103EOF 104awk ' 105BEGIN { printed = 0 } 106{ 107 for (i = 2 ; i <= NF ; i++) { 108 if ($i == "-s") { 109 continue 110 } else if ($i == "-n") { 111 nofork = 1; 112 } else { 113 if (nofork == 0) { 114 continue 115 } 116 if (printed == 1) { 117 printf " || \n\t " 118 } else { 119 printf "\tif (" 120 } 121 printf "idx == " toupper($1) 122 printed = 1 123 nofork = 0; 124 # Only need to check each once 125 break 126 } 127 } 128}' $temp 129 130cat << EOF 131) 132 return (1); 133 return(0); 134} 135EOF 136 137rm -f $temp 138