From: Andi Kleen <ak@muc.de>
To: Andrew Morton <akpm@osdl.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Put the BUG __FILE__ and __LINE__ info out of line
Date: 28 Sep 2006 09:17:31 +0200
Date: Thu, 28 Sep 2006 09:17:31 +0200 [thread overview]
Message-ID: <20060928071731.GB84041@muc.de> (raw)
In-Reply-To: <20060928000019.3fb4b317.akpm@osdl.org>
> Plan #17 is to just put the BUG inline and then put the EIP+file*+line into
> a separate section, then search that section at BUG time to find the record
> whose EIP points back at this ud2a.
>
> It's a bit messy for modules, but it minimises the .text impact and keeps
> disassembly happy, no?
>
> And if done right it can probably be used by other architectures.
The way x86-64 solved it was to turn the inline code into valid
instructions. This can be done with two additional bytes.
IMHO that's the right solution for the problem on i386 too
-Andi
next prev parent reply other threads:[~2006-09-28 7:17 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-28 6:00 [PATCH] Put the BUG __FILE__ and __LINE__ info out of line Jeremy Fitzhardinge
2006-09-28 6:35 ` Andrew Morton
2006-09-28 6:49 ` Jeremy Fitzhardinge
2006-09-28 7:00 ` Andrew Morton
2006-09-28 7:17 ` Andi Kleen [this message]
2006-09-28 7:26 ` Andrew Morton
2006-09-28 10:15 ` Andi Kleen
2006-09-28 10:30 ` Jeremy Fitzhardinge
2006-09-28 10:38 ` Andi Kleen
2006-09-28 15:30 ` Hugh Dickins
2006-09-28 19:44 ` Andi Kleen
2006-09-28 10:27 ` Jeremy Fitzhardinge
2006-09-28 16:18 ` Andrew Morton
2006-09-28 16:32 ` Jeremy Fitzhardinge
2006-09-28 7:16 ` Andi Kleen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20060928071731.GB84041@muc.de \
--to=ak@muc.de \
--cc=akpm@osdl.org \
--cc=jeremy@goop.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.