--- Format.pm.orig      2008-03-24 14:08:28.000000000 -0400
+++ Format.pm   2008-03-24 14:08:59.000000000 -0400
@@ -128,6 +128,16 @@
         $self->{'element'} = "d";
 
         return 1;
+    } elsif ( $archname =~ /^x86_64-linux/ ) {
+        $self->{'statHead'} = "a4 a5 x7 d Q Q Q x80";
+        $self->{'dsDef'} = "a20 a20 L x4 d d x56";
+        $self->{'rraDef'} = "a20 L L d x72";
+        $self->{'pdpDef'} = "a30 x2 L x4 d x64";
+        $self->{'cdpDef'} = "d L x4 x64";
+        $self->{'liveHead'} = "Q";
+        $self->{'liveHead3'} = "Q Q";
+        $self->{'rraPtr'} = "L";
+        $self->{'element'} = "d";
     } elsif ( $archname eq 'alpha-dec_osf') {
         # Thanks to Melissa D. Binde <binde@amazon.com> for
         # finding this (and a major foobar in getFormat.c)