Add memtest support.
[syslinux-debian/hramrach.git] / gpxe / src / util / mergerom.pl
blobf9c52502d13de827ca6ee848e4744d7ad00e55e2
1 #!/usr/bin/perl -w
3 # Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>.
5 # This program is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU General Public License as
7 # published by the Free Software Foundation; either version 2 of the
8 # License, or any later version.
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 use strict;
20 use warnings;
22 use FindBin;
23 use lib "$FindBin::Bin";
24 use Option::ROM qw ( :all );
26 sub merge_entry_points {
27 my $baserom_entry = \shift;
28 my $rom_entry = \shift;
29 my $offset = shift;
31 if ( $$rom_entry ) {
32 my $old_entry = $$baserom_entry;
33 $$baserom_entry = ( $offset + $$rom_entry );
34 $$rom_entry = $old_entry;
38 my @romfiles = @ARGV;
39 my @roms = map { my $rom = new Option::ROM; $rom->load($_); $rom } @romfiles;
41 my $baserom = shift @roms;
42 my $offset = $baserom->length;
44 foreach my $rom ( @roms ) {
46 # Update base length
47 $baserom->{length} += $rom->{length};
49 # Merge initialisation entry point
50 merge_entry_points ( $baserom->{init}, $rom->{init}, $offset );
52 # Merge BOFM header
53 merge_entry_points ( $baserom->{bofm_header}, $rom->{bofm_header}, $offset );
55 # Update PCI header, if present in both
56 my $baserom_pci = $baserom->pci_header;
57 my $rom_pci = $rom->pci_header;
58 if ( $baserom_pci && $rom_pci ) {
60 # Update PCI lengths
61 $baserom_pci->{image_length} += $rom_pci->{image_length};
62 if ( exists $baserom_pci->{runtime_length} ) {
63 if ( exists $rom_pci->{runtime_length} ) {
64 $baserom_pci->{runtime_length} += $rom_pci->{runtime_length};
65 } else {
66 $baserom_pci->{runtime_length} += $rom_pci->{image_length};
70 # Merge CLP entry point
71 if ( exists ( $baserom_pci->{clp_entry} ) &&
72 exists ( $rom_pci->{clp_entry} ) ) {
73 merge_entry_points ( $baserom_pci->{clp_entry}, $rom_pci->{clp_entry},
74 $offset );
78 # Update PnP header, if present in both
79 my $baserom_pnp = $baserom->pnp_header;
80 my $rom_pnp = $rom->pnp_header;
81 if ( $baserom_pnp && $rom_pnp ) {
82 merge_entry_points ( $baserom_pnp->{bcv}, $rom_pnp->{bcv}, $offset );
83 merge_entry_points ( $baserom_pnp->{bdv}, $rom_pnp->{bdv}, $offset );
84 merge_entry_points ( $baserom_pnp->{bev}, $rom_pnp->{bev}, $offset );
87 # Fix checksum for this ROM segment
88 $rom->fix_checksum();
90 $offset += $rom->length;
93 $baserom->pnp_header->fix_checksum() if $baserom->pnp_header;
94 $baserom->fix_checksum();
95 $baserom->save ( "-" );
96 foreach my $rom ( @roms ) {
97 $rom->save ( "-" );