:
eval 'exec perl -wS $0 ${1+"$@"}'
    if 0;
#**************************************************************
#  
#  Licensed to the Apache Software Foundation (ASF) under one
#  or more contributor license agreements.  See the NOTICE file
#  distributed with this work for additional information
#  regarding copyright ownership.  The ASF licenses this file
#  to you under the Apache License, Version 2.0 (the
#  "License"); you may not use this file except in compliance
#  with the License.  You may obtain a copy of the License at
#  
#    http://www.apache.org/licenses/LICENSE-2.0
#  
#  Unless required by applicable law or agreed to in writing,
#  software distributed under the License is distributed on an
#  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
#  KIND, either express or implied.  See the License for the
#  specific language governing permissions and limitations
#  under the License.
#  
#**************************************************************



#
# mapgen  - generate a map file for Unix libraries 
#

#use File::Path;
#use File::Copy;

#### script id #####

( $script_name = $0 ) =~ s/^.*\b(\w+)\.pl$/$1/; 

$id_str = ' $Revision: 1.6 $ ';
$id_str =~ /Revision:\s+(\S+)\s+\$/
  ? ($script_rev = $1) : ($script_rev = "-");

print "$script_name -- version: $script_rev\n";
print "Multi Platform Enabled Edition\n";

#########################
#                       #
#   Globale Variablen   #
#                       #
#########################

$dump_file = '';
$flt_file = '';
$map_file = '';
$first_string = '';
$tab = '    ';

#### main ####

&get_options;
if (!(open (DUMP_FILE, $dump_file))) {
	&print_error("Unable open $dump_file");
};
if (!(open (FLT_FILE, $flt_file))) {
	close DUMP_FILE;
	&print_error("Unable open $flt_file");
};
unlink $map_file;
if (!(open (MAP_FILE, ">>$map_file"))) {
	close DUMP_FILE;
	close FLT_FILE;
	&print_error("Unable open $map_file");
};

if ($ENV{OS} eq 'SOLARIS') {
	&gen_sol;
} elsif ($ENV{OS} eq 'LINUX') {
	&gen_lnx;
} else {
	&print_error ('Environment not set!!');
};

close DUMP_FILE;
close FLT_FILE;
close MAP_FILE;

#### end of main procedure ####

#########################
#                       #
#      Procedures       #
#                       #
#########################

#
# Generate a map file for solaris
#
sub gen_sol {
	my %symbols = ();
	foreach (<DUMP_FILE>) {
		next if (!(/\s*(\S+)\s*\|\s*(\S+)\s*\|\s*(\S+)\s*\|\s*(\S+)\s*\|\s*(\S+)\s*\|\s*(\S+)\s*\|\s*(\S+)\s*\|\s*(\S+)\s*/));
		next if (($7 =~ /UNDEF/) || ($7 =~ /ABS/));
		next if ($5 eq 'LOCL');
		$symbols{$8}++;
	};
	&filter_symbols(\%symbols);
};

#
# Generate a map file for linux
#
sub gen_lnx {
	my %symbols = ();
	foreach (<DUMP_FILE>) {
		next if (!(/^\S+ [A|B|C|D|G|I|N|R|S|T|U|V|W|-|\?|-] (\S+)/));
		$symbols{$1}++;
	};
	&filter_symbols(\%symbols);
}

#
# Filter symbols with filters from $flt_file
#
sub filter_symbols {
	my $symbols = shift;
	my $env_section = '';
	my @filters = ();
	my @filtered_symbols = ();
	while (<FLT_FILE>) {
		s/\r//;
		s/\n//;
		$env_section = '1' and next if ((/^# SOLARIS #$/) && ($ENV{OS} eq 'SOLARIS'));
		$env_section = '1' and next if ((/^# LINUX #$/) && ($ENV{OS} eq 'LINUX'));
		$env_section = '1' and next if ((/^# FREEBSD #$/) && ($ENV{OS} eq 'FREEBSD'));
		last if ($env_section && ((/^# SOLARIS #$/) || (/^# FREEBSD #$/) || (/^# LINUX #$/)));
		next if (!$_ || /^#/);
		push(@filters, $_);
	};
	foreach my $symbol (keys %$symbols) {
		my $export = '-';
        foreach my $filter_str (@filters) {
            my $add = substr ($filter_str, 0, 1);
            my $filter = substr($filter_str, 1);
			if ($symbol =~ /$filter/) {
				$export = $add;
			};
		};
		if ($export eq '+') {
			push(@filtered_symbols, $symbol);
		};
	};
	&write_mapfile(\@filtered_symbols);
};

#
# Write a map file
#
sub write_mapfile {
	my $symbols = shift;
	print MAP_FILE $first_string . " {\n$tab" . "global:\n";
	foreach (@$symbols) {
		print MAP_FILE "$tab$tab$_\;\n";
	};
	print MAP_FILE "$tab" . "local:\n$tab\*\;\n}\;";
};

#
# Get all options passed
#
sub get_options {

$dump_file = '';
$flt_file = '';
$map_file = '';
	my ($arg);
	&usage() && exit(0) if ($#ARGV == -1);
	while ($arg = shift @ARGV) {
		$arg =~ /^-d$/			and $dump_file = shift @ARGV	and next;
		$arg =~ /^-f$/			and $flt_file = shift @ARGV		and next;
		$arg =~ /^-m$/			and $map_file = shift @ARGV		and next;
		$arg =~ /^-h$/			and &usage						and exit(0);
		$arg =~ /^--help$/		and &usage						and exit(0);
		$arg =~ /^-s$/			and $first_string = shift @ARGV	and next;
	};
	if (!$dump_file ||
        !$flt_file  ||
        !$first_string  ||
        !$map_file) {
		&usage;
		exit(1);
	};
};

sub print_error {
    my $message = shift;
    print STDERR "\nERROR: $message\n";
	exit(1)
};

sub usage {
	print STDERR "\nmapgen:\n";
    print STDERR "Syntax:    mapgen -d dump_file -s first_string -f filter_file -m map_file [-h|--help]\n";
};