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

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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.