usr/src/cmd/mdb/tools/scripts/map2linktest.sh

   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 #ident  "%Z%%M% %I%     %E% SMI"
  27 #
  28
  29 #
  30 # Create dummy functions for each of the functions in the module API.  We can
  31 # then link a module against an object file created from the output of this
  32 # script to determine whether or not that module restricts itself to the API.
  33 # If the module uses functions outside of the module API, then it cannot be
  34 # used as a kmdb module.
  35 #
  36 nawk '
  37         /^[     ]*global:[      ]*$/ {
  38                 printing = 1;
  39                 next;
  40         }
  41
  42         /^[     ]*local:[       ]*$/ {
  43                 printing = 0;
  44                 next;
  45         }
  46
  47         # Skip blank lines and comments
  48         /^$/ { next; }
  49         /^[     ]*#/ { next;}
  50
  51         # Print globals only
  52         printing == 0 { next; }
  53
  54         # Symbols beginning with "kmdb_" are not in the module API - they are
  55         # private to kmdb.
  56         $1 ~ /^kmdb_/ { next; }
  57
  58         # Symbols which have the token "variable" are seen as an int
  59         $3 ~ /variable/ {
  60                 if (seen[$1]) {
  61                         next;
  62                 }
  63
  64                 seen[$1] = 1;
  65
  66                 printf("int %s = 0;\n", substr($1, 1, length($1) - 1));
  67                 next;
  68         }
  69
  70         $1 !~ /;$/ { next; }
  71
  72         # Print everything else that we have not already seen as a function
  73         # definition so we can create our filter.
  74         {
  75                 if (seen[$1]) {
  76                         next;
  77                 }
  78
  79                 seen[$1] = 1;
  80
  81                 printf("void %s(void) {}\n", substr($1, 1, length($1) - 1));
  82         }
  83 '
  84
  85 #
  86 # kmdb modules cannot have their own _init, _fini, or _info routines.  By
  87 # creating dummies for them here, a link against an object file created from
  88 # the output of this script will fail if the module defines one of them.
  89 #
  90 echo "void _init(void) {}"
  91 echo "void _info(void) {}"
  92 echo "void _fini(void) {}"
  93 #
  94 # The SunStudio compiler may generate calls to _memcpy and so we
  95 # need to make sure that the correct symbol exists for these calls.
  96 #
  97 echo "void _memcpy(void) {}"