linux-kernel - Re: [PATCH] scripts: objdiff: Ignore debug info when comparing

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 17 Feb 2017 13:58:10 +0000
From:   Jason Cooper <jason@...edaemon.net>
To:     Stephen Boyd <stephen.boyd@...aro.org>
Cc:     Michal Marek <mmarek@...e.cz>, linux-kernel@...r.kernel.org,
        linux-kbuild@...r.kernel.org,
        Masahiro Yamada <yamada.m@...panasonic.com>
Subject: Re: [PATCH] scripts: objdiff: Ignore debug info when comparing

Hi Stephen,

On Thu, Feb 16, 2017 at 01:18:20PM -0800, Stephen Boyd wrote:
> If the kernel is configured to be built with debug symbols, or
> has bug tables, comparing files may not work if line numbers
> change. This makes comparing object files with these options
> harder to do. Let's strip out the debug info and drop the
> __bug_table here so that we don't see false positives. There may
> be other things to drop later, and it may be architecture
> specific, but this works for me with my ARM64 build.
> 
> Cc: Masahiro Yamada <yamada.m@...panasonic.com>
> Cc: Jason Cooper <jason@...edaemon.net>
> Signed-off-by: Stephen Boyd <stephen.boyd@...aro.org>

Reviewed-by: Jason Cooper <jason@...edaemon.net>

I'm glad it's useful!

thx,

Jason.