1 files changed, 57 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/core/lstadjust.pl b/contrib/syslinux-4.02/core/lstadjust.pl
new file mode 100755
index 0000000..cec5402
--- /dev/null
+++ b/contrib/syslinux-4.02/core/lstadjust.pl
@@ -0,0 +1,57 @@
+#!/usr/bin/perl
+#
+# Take a NASM list and map file and make the offsets in the list file
+# absolute.  This makes debugging a lot easier.
+#
+# Usage:
+#
+#  lstadjust.pl listfile mapfile outfile
+#
+
+($listfile, $mapfile, $outfile) = @ARGV;
+
+open(LST, "< $listfile\0")
+    or die "$0: cannot open: $listfile: $!\n";
+open(MAP, "< $mapfile\0")
+    or die "$0: cannot open: $mapfile: $!\n";
+open(OUT, "> $outfile\0")
+    or die "$0: cannot create: $outfile: $!\n";
+
+%vstart = ();
+
+while (defined($line = <MAP>)) {
+    if ($line =~ /^\s*([0-9]+)\s+(\S+)\s+([0-9a-f]+)\s+([0-9a-f]+)\s+([0-9a-f]+)\s+([0-9a-f]+)\s+2\*\*([0-9]+)/i) {
+	$vstart{$2} = hex $4;
+    }
+}
+close(MAP);
+
+$offset = 0;
+@ostack = ();
+
+while (defined($line = <LST>)) {
+    chomp $line;
+
+    $source = substr($line, 40);
+    if ($source =~ /^([^;]*);/) {
+	$source = $1;
+    }
+
+    ($label, $op, $arg, $tail) = split(/\s+/, $source);
+    if ($op =~ /^(|\[)section$/i) {
+	$offset = $vstart{$arg};
+    } elsif ($op =~ /^(absolute|\[absolute)$/i) {
+	$offset = 0;
+    } elsif ($op =~ /^struc$/i) {
+	push(@ostack, $offset);
+	$offset = 0;
+    } elsif ($op =~ /^endstruc$/i) {
+	$offset = pop(@ostack);
+    }
+
+    if ($line =~ /^(\s*[0-9]+ )([0-9A-F]{8})(\s.*)$/) {
+	$line = sprintf("%s%08X%s", $1, (hex $2)+$offset, $3);
+    }
+
+    print OUT $line, "\n";
+}