diff options
| -rwxr-xr-x | src/util/mergerom.pl | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/util/mergerom.pl b/src/util/mergerom.pl new file mode 100755 index 00000000..ce1befb7 --- /dev/null +++ b/src/util/mergerom.pl @@ -0,0 +1,80 @@ +#!/usr/bin/perl -w +# +# Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of the +# License, or any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +use strict; +use warnings; + +use FindBin; +use lib "$FindBin::Bin"; +use Option::ROM qw ( :all ); + +my @romfiles = @ARGV; +my @roms = map { my $rom = new Option::ROM; $rom->load($_); $rom } @romfiles; + +my $baserom = shift @roms; +my $offset = $baserom->length; + +foreach my $rom ( @roms ) { + + # Update base length + $baserom->{length} += $rom->{length}; + + # Update PCI header, if present in both + my $baserom_pci = $baserom->pci_header; + my $rom_pci = $rom->pci_header; + if ( $baserom_pci && $rom_pci ) { + + # Update PCI lengths + $baserom_pci->{image_length} += $rom_pci->{image_length}; + if ( exists $baserom_pci->{runtime_length} ) { + if ( exists $rom_pci->{runtime_length} ) { + $baserom_pci->{runtime_length} += $rom_pci->{runtime_length}; + } else { + $baserom_pci->{runtime_length} += $rom_pci->{image_length}; + } + } + + # Merge CLP entry point + if ( exists ( $baserom_pci->{clp_entry} ) && + exists ( $rom_pci->{clp_entry} ) ) { + $baserom_pci->{clp_entry} = ( $offset + $rom_pci->{clp_entry} ) + if $rom_pci->{clp_entry}; + } + } + + # Update PnP header, if present in both + my $baserom_pnp = $baserom->pnp_header; + my $rom_pnp = $rom->pnp_header; + if ( $baserom_pnp && $rom_pnp ) { + $baserom_pnp->{bcv} = ( $offset + $rom_pnp->{bcv} ) if $rom_pnp->{bcv}; + $baserom_pnp->{bdv} = ( $offset + $rom_pnp->{bdv} ) if $rom_pnp->{bdv}; + $baserom_pnp->{bev} = ( $offset + $rom_pnp->{bev} ) if $rom_pnp->{bev}; + } + + # Fix checksum for this ROM segment + $rom->fix_checksum(); + + $offset += $rom->length; +} + +$baserom->pnp_header->fix_checksum() if $baserom->pnp_header; +$baserom->fix_checksum(); +$baserom->save ( "-" ); +foreach my $rom ( @roms ) { + $rom->save ( "-" ); +} |