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