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Date: Fri, 01 Mar 2013 08:23:30 +0100
From: Daniel Mack <zonque@gmail.com>
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To: Andreas Fenkart <andreas.fenkart@streamunlimited.com>
CC: gregkh@linuxfoundation.org, kay@vrfy.org, linux-kernel@vger.kernel.org
Subject: Re: dmesg macro in Documentation/kdump/gdbmacros.txt outdated
References: <20130301013127.GA28038@blumentopf>
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On 01.03.2013 02:31, Andreas Fenkart wrote:
> Is there an updated version matching the changed printk structure?

I hacked something up a while ago, but it's not perfect. The code below
stops dumping too early IIRC, but I never got around to fix that. Maybe
someone wants to look at it and help debug, so we can put it into
gdbmacros.txt ...

Thanks,
Daniel


define dmesg
        set $idx = 0
        set $seq = 0

        while ($seq++ < log_next_seq)
                set $buf = log_buf + $idx
                set $log = (struct log *) $buf

                if ($log->len == 0)
                        loop_break
                end

                printf "%s\n", (char *) ($buf + sizeof(struct log))
                set $idx += $log->len
        end
end

document dmesg
dmesg
Print the content of the kernel message buffer
end