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-rw-r--r--gpxe/src/util/mergerom.pl80
1 files changed, 80 insertions, 0 deletions
diff --git a/gpxe/src/util/mergerom.pl b/gpxe/src/util/mergerom.pl
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+++ b/gpxe/src/util/mergerom.pl
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+#!/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 ( "-" );
+}