linux-kernel - Re: [PATCH] Fix markup_oops.pl get error in x86

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Message-ID: <daef60381001062143i67da4203rb02919b64794664c@mail.gmail.com>
Date:	Thu, 7 Jan 2010 13:43:03 +0800
From:	Hui Zhu <teawater@...il.com>
To:	Arjan van de Ven <arjan@...ux.intel.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Sam Ravnborg <sam@...nborg.org>,
	Ozan Çaglayan <ozan@...dus.org.tr>,
	Matthew Wilcox <willy@...ux.intel.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fix markup_oops.pl get error in x86

On Wed, Jan 6, 2010 at 21:23, Arjan van de Ven <arjan@...ux.intel.com> wrote:
> On 1/6/2010 1:23, Hui Zhu wrote:
>>
>>        }
>> $func_offset will get a number like "0x2"
>> But in follow code:
>> my $decodestart = Math::BigInt->from_hex("0x$target") -
>> Math::BigInt->from_hex("0x$func_offset");
>> It add other ox to ox2.
>> Then this value will be set to NaN.
>>
>> So I make a small patch to fix it.
>
>> -       if ($line =~ /EIP is at
>> ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]/) {
>> +       if ($line =~ /EIP is at
>> ([a-zA-Z0-9\_]+)\+0x([0-9a-f]+)\/[a-f0-9]/) {
>
> I think this makes sense, but would you not also need to add "x" to the list
> of allowed characters?
> so   [a-f0-9x]
> ?
>
>

Ah, sorry I make a mistake.  I think the last 0x need be keep.

What about this version?

Thanks,
Hui

---
 scripts/markup_oops.pl |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/scripts/markup_oops.pl
+++ b/scripts/markup_oops.pl
@@ -154,7 +154,7 @@ while (<STDIN>) {
 	if ($line =~ /RIP: 0010:\[\<([a-z0-9]+)\>\]/) {
 		$target = $1;
 	}
-	if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]/) {
+	if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+0x([0-9a-f]+)\/0x[a-f0-9]/) {
 		$function = $1;
 		$func_offset = $2;
 	}
--
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