bin/sh/mkbuiltins

   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. All advertising materials mentioning features or use of this software
  19 #    must display the following acknowledgement:
  20 #       This product includes software developed by the University of
  21 #       California, Berkeley and its contributors.
  22 # 4. Neither the name of the University nor the names of its contributors
  23 #    may be used to endorse or promote products derived from this software
  24 #    without specific prior written permission.
  25 #
  26 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  27 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29 # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  30 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36 # SUCH DAMAGE.
  37 #
  38 #       @(#)mkbuiltins  8.2 (Berkeley) 5/4/95
  39 # $FreeBSD: src/bin/sh/mkbuiltins,v 1.16 2006/04/02 18:43:33 stefanf Exp $
  40 # $DragonFly: src/bin/sh/mkbuiltins,v 1.4 2007/01/07 01:14:53 pavalos Exp $
  41
  42 temp=`/usr/bin/mktemp -t ka`
  43 havejobs=0
  44 if grep '^#define[       ]*JOBS[         ]*1' shell.h > /dev/null
  45 then    havejobs=1
  46 fi
  47 havehist=1
  48 if [ "X$1" = "X-h" ]; then
  49         havehist=0
  50         shift
  51 fi
  52 objdir=$1
  53 exec > ${objdir}/builtins.c
  54 cat <<\!
  55 /*
  56  * This file was generated by the mkbuiltins program.
  57  */
  58
  59 #include <stdlib.h>
  60 #include "shell.h"
  61 #include "builtins.h"
  62
  63 !
  64 awk '/^[^#]/ {if(('$havejobs' || $2 != "-j") && ('$havehist' || $2 != "-h")) \
  65     print $0}' builtins.def | sed 's/-[hj]//' > $temp
  66 awk '{  printf "int %s(int, char *[]);\n", $1}' $temp
  67 echo '
  68 int (*const builtinfunc[])(int, char *[]) = {'
  69 awk '/^[^#]/ {  printf "\t%s,\n", $1}' $temp
  70 echo '};
  71
  72 const struct builtincmd builtincmd[] = {'
  73 awk '{  for (i = 2 ; i <= NF ; i++) {
  74                 if ($i == "-s") {
  75                         spc = 1;
  76                 } else {
  77                         printf "\t{ \"%s\", %d, %d },\n",  $i, NR-1, spc
  78                         spc = 0;
  79                 }
  80         }}' $temp
  81 echo '  { NULL, 0, 0 }
  82 };'
  83
  84 exec > ${objdir}/builtins.h
  85 cat <<\!
  86 /*
  87  * This file was generated by the mkbuiltins program.
  88  */
  89
  90 #include <sys/cdefs.h>
  91 !
  92 tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ < $temp |
  93         awk '{  printf "#define %s %d\n", $1, NR-1}'
  94 echo '
  95 struct builtincmd {
  96       const char *name;
  97       int code;
  98       int special;
  99 };
 100
 101 extern int (*const builtinfunc[])(int, char *[]);
 102 extern const struct builtincmd builtincmd[];'
 103 rm -f $temp