Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / util / mergerom.pl

diff --git a/qemu/roms/ipxe/src/util/mergerom.pl b/qemu/roms/ipxe/src/util/mergerom.pl
new file mode 100755 (executable)
index 0000000..f5c1632
--- /dev/null
+++ b/qemu/roms/ipxe/src/util/mergerom.pl
@@ -0,0 +1,117 @@
+#!/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., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+use strict;
+use warnings;
+
+use FindBin;
+use lib "$FindBin::Bin";
+use Option::ROM qw ( :all );
+
+sub merge_entry_points {
+  my $baserom_entry = \shift;
+  my $rom_entry = \shift;
+  my $offset = shift;
+
+  if ( $$rom_entry ) {
+    my $old_entry = $$baserom_entry;
+    $$baserom_entry = ( $offset + $$rom_entry );
+    $$rom_entry = $old_entry;
+  }
+}
+
+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 ) {
+
+  # Merge initialisation entry point
+  merge_entry_points ( $baserom->{init}, $rom->{init}, $offset );
+
+  # Merge BOFM header
+  merge_entry_points ( $baserom->{bofm_header}, $rom->{bofm_header}, $offset );
+
+  # 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} ) ) {
+      merge_entry_points ( $baserom_pci->{clp_entry}, $rom_pci->{clp_entry},
+                          $offset );
+    }
+  }
+
+  # Update PnP header, if present in both
+  my $baserom_pnp = $baserom->pnp_header;
+  my $rom_pnp = $rom->pnp_header;
+  if ( $baserom_pnp && $rom_pnp ) {
+    merge_entry_points ( $baserom_pnp->{bcv}, $rom_pnp->{bcv}, $offset );
+    merge_entry_points ( $baserom_pnp->{bdv}, $rom_pnp->{bdv}, $offset );
+    merge_entry_points ( $baserom_pnp->{bev}, $rom_pnp->{bev}, $offset );
+  }
+
+  # Update iPXE header, if present
+  my $baserom_ipxe = $baserom->ipxe_header;
+  my $rom_ipxe = $rom->ipxe_header;
+  if ( $baserom_ipxe ) {
+
+    # Update shrunk length
+    $baserom_ipxe->{shrunk_length} = ( $baserom->{length} +
+                                      ( $rom_ipxe ?
+                                        $rom_ipxe->{shrunk_length} :
+                                        $rom->{length} ) );
+
+    # Fix checksum
+    $baserom_ipxe->fix_checksum();
+  }
+
+  # Update base length
+  $baserom->{length} += $rom->{length};
+
+  # Fix checksum for this ROM segment
+  $rom->fix_checksum();
+
+  # Add this ROM to base ROM
+  my $data = substr ( $baserom->get(), 0, $baserom->length() );
+  $data .= $rom->get();
+  $data .= $baserom->next_image()->get() if $baserom->next_image();
+  $baserom->set ( $data );
+
+  $offset += $rom->length;
+}
+
+$baserom->pnp_header->fix_checksum() if $baserom->pnp_header;
+$baserom->fix_checksum();
+$baserom->save ( "-" );