linux-kernel - [PATCH] Fix markup_oops to work with 32-bit userspace on a 64-bit kernel

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Date:	Mon, 13 Jul 2009 08:18:19 -0600
From:	Matthew Wilcox <matthew@....cx>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] Fix markup_oops to work with 32-bit userspace on a 64-bit
	kernel


A 32-bit perl can't handle 64-bit addresses without using the BigInt package.

Signed-off-by: Matthew Wilcox <willy@...ux.intel.com>

diff --git a/scripts/markup_oops.pl b/scripts/markup_oops.pl
index 528492b..8977401 100644
--- a/scripts/markup_oops.pl
+++ b/scripts/markup_oops.pl
@@ -1,6 +1,7 @@
 #!/usr/bin/perl
 
 use File::Basename;
+use Math::BigInt;
 
 # Copyright 2008, Intel Corporation
 #
@@ -172,8 +173,8 @@ while (<STDIN>) {
 	parse_x86_regs($line);
 }
 
-my $decodestart = hex($target) - hex($func_offset);
-my $decodestop = hex($target) + 8192;
+my $decodestart = Math::BigInt->from_hex("0x$target") - Math::BigInt->from_hex("0x$func_offset");
+my $decodestop = Math::BigInt->from_hex("0x$target") + 8192;
 if ($target eq "0") {
 	print "No oops found!\n";
 	print "Usage: \n";

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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