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Subject: Re: [RFC] [PATCH] In-kernel gdbstub based on utrace Infrastructure.
From: Peter Zijlstra <peterz@infradead.org>
To: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, "Frank Ch. Eigler" <fche@redhat.com>,
       utrace-devel <utrace-devel@redhat.com>,
       Roland McGrath <roland@redhat.com>, Jim Keniston <jkenisto@us.ibm.com>,
       Ananth N Mavinakayanahalli <ananth@in.ibm.com>
In-Reply-To: <20091130120345.GA18879@linux.vnet.ibm.com>
References: <20091130120345.GA18879@linux.vnet.ibm.com>
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Date: Mon, 30 Nov 2009 13:09:12 +0100
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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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