#

# Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of the License "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

# Description: 

#

package DepUtil;

require Exporter;

@ISA=qw(Exporter);

@EXPORT=qw(

	GenDependencies

);

use strict;

my ($interworking, $outfile, $genpath, $libpath, $librariesRef, $gVerbose);

sub GenDependencies {

	($interworking, $outfile, $genpath, $libpath, $librariesRef, $gVerbose) = @_;

	my @dsoList;

	foreach my $alib (@$librariesRef) {

#	.lib files are archive file. Get the corresponding dso file which is in ELF.

		if($alib =~ /(.*)\.lib$/) {

			my $dso = "$1.dso";

			if(-e $dso){

				push @dsoList, $dso;

				}

		}

		elsif($alib =~ /.*\.dso$/) {

			if(-e $alib){

				push @dsoList, $alib;

				}

		}

	}

	my @linkAsList=();

	foreach my $dso (@dsoList) {

#	Get the linkas names of the libraries

		open PIPE, "getexports -s $dso |";

		while(<PIPE>) {

			if($_ =~ /(\S+)/){

			push @linkAsList, $1;

			}

	 	}

		close PIPE;

	}

	GenLinkerSteeringFileForDeps(\@linkAsList) if($outfile);

}

sub GenLinkerSteeringFileForDeps {

#	Generate the linker steering file to indicate in the final ELF file 

#	about the static dependencies. This list gives the list and order of

#	library names in which name lookup shall happen. Whether they were

#	actually linked-in in the final ELF shall be determined by the import

#	table. The import table fails to maintain the linking order and is

#	achieved through these linker directives.

	my ($LinkAsNamesRef) = @_;

	my $depfile = "$genpath\\$outfile.dep";

	open OUTFILE, ">$depfile" or

		die "Can't create file $depfile\n";

	print OUTFILE "; This is a generated file for Static Dependency listing";

	print OUTFILE "; causing the linker to create DT_NEEDED tag(s) in the dynamic array\n\n";

	foreach my $name (@$LinkAsNamesRef) {

		print OUTFILE "\n\tREQUIRE \"$name\"";

	}

	print OUTFILE "\n";

	close OUTFILE;

}

1;