From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Linas Vepstas (Code Aurora)" <linas@codeaurora.org>
Subject: Re: [PATCH v4 31/36] Hexagon: kgdb support files
Date: Mon, 19 Sep 2011 10:15:32 -0500
Message-ID: <20110919151532.GA6830@codeaurora.org>
References: <e97c6e$3hno1n@wolverine02.qualcomm.com>
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To: Dongdong Deng <libfetion@gmail.com>
Cc: Richard Kuo <rkuo@codeaurora.org>, linux-arch@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org

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@codeaurora.org> wr=
ote:
> > +#if 0
> > + =A0 =A0 =A0 ret =3D kgdb_handle_exception(args->trapnr & 0xff, ar=
gs->signr, args->err,
> > + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 regs);
> > + =A0 =A0 =A0 if (ret)
> > + =A0 =A0 =A0 =A0 =A0 =A0 =A0 return NOTIFY_DONE;
> > +#endif
>=20
> 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=20
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

--=20
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora For=
um.