linux-kernel - Re: [RFC] [PATCH] In-kernel gdbstub based on utrace Infrastructure.

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Message-ID: <1259582952.20516.209.camel@laptop>
Date:	Mon, 30 Nov 2009 13:09:12 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, "Frank Ch. Eigler" <fche@...hat.com>,
	utrace-devel <utrace-devel@...hat.com>,
	Roland McGrath <roland@...hat.com>,
	Jim Keniston <jkenisto@...ibm.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>
Subject: Re: [RFC] [PATCH] In-kernel gdbstub based on utrace Infrastructure.

On Mon, 2009-11-30 at 17:33 +0530, Srikar Dronamraju wrote:
> This patch implements an in-kernel gdb stub.
> It provides an interface between gdb and Linux Kernel by implementing
> the remote serial protocol.  This gdbstub uses utrace infrastructure.
> This patch provides register set access, signal mapping, process event
> handling, input/output operations.
> 
> /proc/<pid>/gdb was chosen as file for gdb to interact with the
> process through remote serial protocol. 
> 
> Hence users would have to use "target remote /proc/<pid>/gdb" command
> on gdb prompt to start using this infrastructure.
> 
> For Breakpointing support, gdbstub needs User space breakpointing
> layer and uprobes layer which will be posted later.

How does this compare to kgdb and related efforts?



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