commands/ash/mkbuiltins

   1 #!/bin/sh -
   2 #
   3 # Copyright (c) 1991, 1993
   4 #       The Regents of the University of California.  All rights reserved.
   5 #
   6 # This code is derived from software contributed to Berkeley by
   7 # Kenneth Almquist.
   8 #
   9 # Redistribution and use in source and binary forms, with or without
  10 # modification, are permitted provided that the following conditions
  11 # are met:
  12 # 1. Redistributions of source code must retain the above copyright
  13 #    notice, this list of conditions and the following disclaimer.
  14 # 2. Redistributions in binary form must reproduce the above copyright
  15 #    notice, this list of conditions and the following disclaimer in the
  16 #    documentation and/or other materials provided with the distribution.
  17 # 4. Neither the name of the University nor the names of its contributors
  18 #    may be used to endorse or promote products derived from this software
  19 #    without specific prior written permission.
  20 #
  21 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24 # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31 # SUCH DAMAGE.
  32 #
  33 #       @(#)mkbuiltins  8.2 (Berkeley) 5/4/95
  34 # $FreeBSD: src/bin/sh/mkbuiltins,v 1.13 2004/04/06 20:06:51 markm Exp $
  35
  36 #temp=`/usr/bin/mktemp -t ka`
  37 temp=/tmp/mkb$$
  38 havehist=1
  39 if [ "X$1" = "X-h" ]; then
  40         havehist=0
  41         shift
  42 fi
  43 havejobs=0
  44 if [ "X$1" = "X-j" ]; then
  45         havejobs=0
  46         shift
  47 elif grep '^#define[     ]*JOBS[         ]*1' $2 > /dev/null
  48 then    havejobs=1
  49 fi
  50 objdir=$1
  51 exec > ${objdir}/builtins.c
  52 cat <<\!
  53 /*
  54  * This file was generated by the mkbuiltins program.
  55  */
  56
  57 #include <stdlib.h>
  58 #include "shell.h"
  59 #include "builtins.h"
  60
  61 !
  62 awk '/^[^#]/ {if(('$havejobs' || $2 != "-j") && ('$havehist' || $2 != "-h")) \
  63     print $0}' $3 | sed 's/-[hj]//' > $temp
  64 #awk '{ printf "int %s();\n", $1}' $temp
  65 echo '
  66 int (*const builtinfunc[]) (int, char **) = {'
  67 awk '/^[^#]/ {  printf "\t%s,\n", $1}' $temp
  68 echo '};
  69
  70 const struct builtincmd builtincmd[] = {'
  71 awk '{  for (i = 2 ; i <= NF ; i++) {
  72                 printf "\t{ \"%s\", %d },\n",  $i, NR-1
  73         }}' $temp
  74 echo '  { NULL, 0 }
  75 };'
  76
  77 exec > ${objdir}/builtins.h
  78 cat <<\!
  79 /*
  80  * This file was generated by the mkbuiltins program.
  81  */
  82
  83 !
  84 tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ < $temp |
  85         awk '{  printf "#define %s %d\n", $1, NR-1}'
  86 echo '
  87 struct builtincmd {
  88       char *name;
  89       int code;
  90 };
  91
  92 extern int (*const builtinfunc[]) (int, char **);
  93 extern const struct builtincmd builtincmd[];'
  94 awk '{ printf "int %s (int, char **);\n", $1 }' < $temp
  95 rm -f $temp
  96
  97 #
  98 # $PchId: mkbuiltins,v 1.6 2006/05/22 12:42:58 philip Exp $