/bin/sh/mkbuiltins

https://bitbucket.org/freebsd/freebsd-head/ · Shell · 98 lines · 54 code · 6 blank · 38 comment · 2 complexity · 7cbed72de7bc7ef938283919c591149b MD5 · raw file

  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. # $FreeBSD$
  35. temp=`/usr/bin/mktemp -t ka`
  36. havehist=1
  37. if [ "X$1" = "X-h" ]; then
  38. havehist=0
  39. shift
  40. fi
  41. srcdir=$1
  42. havejobs=0
  43. if grep '^#define[ ]*JOBS[ ]*1' $srcdir/shell.h > /dev/null
  44. then havejobs=1
  45. fi
  46. exec > builtins.c
  47. cat <<\!
  48. /*
  49. * This file was generated by the mkbuiltins program.
  50. */
  51. #include <stdlib.h>
  52. #include "shell.h"
  53. #include "builtins.h"
  54. !
  55. awk '/^[^#]/ {if(('$havejobs' || $2 != "-j") && ('$havehist' || $2 != "-h")) \
  56. print $0}' $srcdir/builtins.def | sed 's/-[hj]//' > $temp
  57. echo 'int (*const builtinfunc[])(int, char **) = {'
  58. awk '/^[^#]/ { printf "\t%s,\n", $1}' $temp
  59. echo '};
  60. const struct builtincmd builtincmd[] = {'
  61. awk '{ for (i = 2 ; i <= NF ; i++) {
  62. if ($i == "-s") {
  63. spc = 1;
  64. } else {
  65. printf "\t{ \"%s\", %d, %d },\n", $i, NR-1, spc
  66. spc = 0;
  67. }
  68. }}' $temp
  69. echo ' { NULL, 0, 0 }
  70. };'
  71. exec > builtins.h
  72. cat <<\!
  73. /*
  74. * This file was generated by the mkbuiltins program.
  75. */
  76. #include <sys/cdefs.h>
  77. !
  78. tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ < $temp |
  79. awk '{ printf "#define %s %d\n", $1, NR-1}'
  80. echo '
  81. struct builtincmd {
  82. const char *name;
  83. int code;
  84. int special;
  85. };
  86. extern int (*const builtinfunc[])(int, char **);
  87. extern const struct builtincmd builtincmd[];
  88. '
  89. awk '{ printf "int %s(int, char **);\n", $1}' $temp
  90. rm -f $temp