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