1 #!/bin/ksh
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22 #
  23 # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24 # Use is subject to license terms.
  25 #
  26 
  27 #
  28 # Create dummy functions for each of the functions in the module API.  We can
  29 # then link a module against an object file created from the output of this
  30 # script to determine whether or not that module restricts itself to the API.
  31 # If the module uses functions outside of the module API, then it cannot be
  32 # used as a kmdb module.
  33 #
  34 /usr/xpg4/bin/awk '
  35         /^[     ]*global:[      ]*$/ {
  36                 printing = 1;
  37                 next;
  38         }
  39 
  40         /^[     ]*local:[       ]*$/ {
  41                 printing = 0;
  42                 next;
  43         }
  44 
  45         # Skip blank lines and comments
  46         /^$/ { next; }
  47         /^[     ]*#/ { next;}
  48 
  49         # Print globals only
  50         printing == 0 { next; }
  51 
  52         # Symbols beginning with "kmdb_" are not in the module API - they are
  53         # private to kmdb.
  54         $1 ~ /^kmdb_/ { next; }
  55 
  56         # Symbols which have the token "variable" are seen as an int
  57         $3 ~ /variable/ {
  58                 if (seen[$1]) {
  59                         next;
  60                 }
  61 
  62                 seen[$1] = 1;
  63 
  64                 printf("int %s = 0;\n", substr($1, 1, length($1) - 1));
  65                 next;
  66         }
  67 
  68         $1 !~ /;$/ { next; }
  69 
  70         # Print everything else that we have not already seen as a function
  71         # definition so we can create our filter.
  72         {
  73                 if (seen[$1]) {
  74                         next;
  75                 }
  76 
  77                 seen[$1] = 1;
  78 
  79                 printf("void %s(void) {}\n", substr($1, 1, length($1) - 1));
  80         }
  81 '
  82 
  83 #
  84 # kmdb modules cannot have their own _init, _fini, or _info routines.  By
  85 # creating dummies for them here, a link against an object file created from
  86 # the output of this script will fail if the module defines one of them.
  87 #
  88 echo "void _init(void) {}"
  89 echo "void _info(void) {}"
  90 echo "void _fini(void) {}"
  91 #
  92 # The SunStudio compiler may generate calls to _memcpy and so we
  93 # need to make sure that the correct symbol exists for these calls.
  94 #
  95 echo "void _memcpy(void) {}"