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 34temp=`mktemp -t ka` 35srcdir=$1 36havejobs=0 37if grep '^#define[ ]*JOBS[ ]*1' $srcdir/shell.h > /dev/null 38then havejobs=1 39fi 40exec > builtins.c 41cat <<\! 42/* 43 * This file was generated by the mkbuiltins program. 44 */ 45 46#include <stdlib.h> 47#include "shell.h" 48#include "builtins.h" 49 50! 51awk '/^[^#]/ {if('$havejobs' || $2 != "-j") \ 52 print $0}' $srcdir/builtins.def | sed 's/-j//' > $temp 53echo 'int (*const builtinfunc[])(int, char **) = {' 54awk '/^[^#]/ { printf "\t%s,\n", $1}' $temp 55echo '}; 56 57const unsigned char builtincmd[] = {' 58awk '{ for (i = 2 ; i <= NF ; i++) { 59 if ($i == "-s") { 60 spc = 1; 61 } else if ($i == "-n") { 62 # Handled later for builtins.h 63 continue 64 } else { 65 printf "\t\"\\%03o\\%03o%s\"\n", length($i), (spc ? 128 : 0) + NR-1, $i 66 spc = 0; 67 } 68 }}' $temp 69echo '};' 70 71exec > builtins.h 72cat <<\! 73/* 74 * This file was generated by the mkbuiltins program. 75 */ 76 77#include <sys/cdefs.h> 78! 79tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ < $temp | 80 awk '{ printf "#define %s %d\n", $1, NR-1}' 81echo ' 82#define BUILTIN_SPECIAL 0x80 83 84extern int (*const builtinfunc[])(int, char **); 85extern const unsigned char builtincmd[]; 86' 87awk '{ printf "int %s(int, char **);\n", $1}' $temp 88 89# Build safe_builtin_always() 90cat <<EOF 91 92static inline int 93safe_builtin_always(int idx) 94{ 95EOF 96awk ' 97BEGIN { printed = 0 } 98{ 99 for (i = 2 ; i <= NF ; i++) { 100 if ($i == "-s") { 101 continue 102 } else if ($i == "-n") { 103 nofork = 1; 104 } else { 105 if (nofork == 0) { 106 continue 107 } 108 if (printed == 1) { 109 printf " || \n\t " 110 } else { 111 printf "\tif (" 112 } 113 printf "idx == " toupper($1) 114 printed = 1 115 nofork = 0; 116 # Only need to check each once 117 break 118 } 119 } 120}' $temp 121 122cat << EOF 123) 124 return (1); 125 return(0); 126} 127EOF 128 129rm -f $temp 130