cf/w32-check-exported-symbols.pl

   1 ########################################################################
   2 #
   3 # Copyright (c) 2010, Secure Endpoints Inc.
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions
   8 # are met:
   9 #
  10 # - Redistributions of source code must retain the above copyright
  11 #   notice, this list of conditions and the following disclaimer.
  12 #
  13 # - Redistributions in binary form must reproduce the above copyright
  14 #   notice, this list of conditions and the following disclaimer in
  15 #   the documentation and/or other materials provided with the
  16 #   distribution.
  17 #
  18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  21 # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  22 # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  23 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  24 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  25 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  26 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  28 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29 # POSSIBILITY OF SUCH DAMAGE.
  30 #
  31
  32 use Getopt::Long;
  33 use Pod::Usage;
  34 use feature "switch";
  35
  36 my $def_name = '';
  37 my $vs_name = '';
  38 my $show_help = 0;
  39
  40 my %syms;
  41
  42 my $def_only = 0;
  43 my $vs_only = 0;
  44
  45 GetOptions ("def=s" => \$def_name,
  46             "vs=s" => \$vs_name,
  47             "help|?" => \$show_help) or pod2usage( -exitval => 2,
  48                                                    -verbose => 3 );
  49 pod2usage( -exitval => 1,
  50            -verbose => 3 ) if $show_help or !$def_name or !$vs_name;
  51
  52 open (my $def, '<', $def_name) or die $!;
  53 open (my $vs, '<', $vs_name) or die $!;
  54
  55 # First go through the version-script
  56
  57 my $global = 0;
  58
  59 while(<$vs>)
  60 {
  61     next unless m/^([^#]+)/;
  62
  63     @a = split(/\s+|(\{|})/,$1);
  64
  65     for $f (@a) {
  66         given ($f) {
  67             when (/global\:/) { $global = 1; }
  68             when (/{|}|.*\:/) { $global = 0; }
  69             when (/(.*)\;/ and $global == 1) {
  70                 $syms{$1} = 1;
  71             }
  72         }
  73     }
  74 }
  75
  76 while(<$def>)
  77 {
  78     next if m/^#/;
  79     next unless m/^;!([^;]+)/ or m/^([^;]+);?(!?)/;
  80
  81     @a = split(/\s+/, $1);
  82
  83     for $f (@a) {
  84         next if $f =~ /EXPORTS/ or $f =~ /DATA/ or not $f;
  85
  86         if (not exists $syms{$f} and not $2) {
  87             print "$f: Only in DEF\n";
  88             ++$def_only;
  89         }
  90         delete $syms{$f};
  91     }
  92 }
  93
  94 #while (($k,$v) = each %syms) {
  95 for $k (sort keys %syms) {
  96     print "$k: Only in VS\n";
  97     ++$vs_only;
  98 }
  99
 100 close($def);
 101 close($vs);
 102
 103 if ($def_only or $vs_only) {
 104     print "\nMismatches found.\n";
 105     exit(1);
 106 }
 107
 108 __END__
 109
 110 =head1 NAME
 111
 112 w32-sync-exported-symbols.pl - Synchronize Windows .def with version-script
 113
 114 =head1 SYNOPSIS
 115
 116 w32-sync-exported-symbols.pl {options}
 117
 118   Options:
 119     --def        Name of .def file
 120     --vs         Name of version-script file
 121
 122 =head1 DESCRIPTION
 123
 124 Verifies that all the symbols exported by the version-script is also
 125 accounted for in the .def file.  Also checks that no extra symbols are
 126 exported by the .def file unless they are marked as safe.
 127
 128 =cut
 129