linux-kernel - Re: [PATCH v4 31/36] Hexagon: kgdb support files

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Date:	Mon, 19 Sep 2011 10:15:32 -0500
From:	"Linas Vepstas (Code Aurora)" <linas@...eaurora.org>
To:	Dongdong Deng <libfetion@...il.com>
Cc:	Richard Kuo <rkuo@...eaurora.org>, linux-arch@...r.kernel.org,
	linux-hexagon@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 31/36] Hexagon: kgdb support files

On Mon, Sep 19, 2011 at 05:46:09PM +0800, Dongdong Deng wrote:
> On Thu, Sep 15, 2011 at 2:19 AM, Richard Kuo <rkuo@...eaurora.org> wrote:
> > +#if 0
> > +       ret = kgdb_handle_exception(args->trapnr & 0xff, args->signr, args->err,
> > +                                   regs);
> > +       if (ret)
> > +               return NOTIFY_DONE;
> > +#endif
> 
> Hmm,  the key code of invoking kgdb_core was disabled by "#if 0".

The Hexagon kgdb implementation is incomplete; I work on it as time
permits and urgency requires.  I know from direct experience that,
for kernel bringup and stress testing on new platforms, that kdb is 
invaluable, being infinitely easier to use than any hardware debugger.
(cheaper, too)

This world could use a really cheap, easy-to-setup jtag debugger.

-- Linas

-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
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