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Re: "No registers" error on connecting to MIPS LSI PMON target
- From: Daniel Jacobowitz <drow at mvista dot com>
- To: Atsushi Nemoto <anemo at mba dot ocn dot ne dot jp>
- Cc: gdb-patches at sources dot redhat dot com
- Date: Wed, 8 Oct 2003 10:05:43 -0400
- Subject: Re: "No registers" error on connecting to MIPS LSI PMON target
- References: <20031008.194759.74756454.nemoto@toshiba-tops.co.jp>
On Wed, Oct 08, 2003 at 07:47:59PM +0900, Atsushi Nemoto wrote:
> I tried to use gdb-6.0 for remote-debugging with MIPS LSI PMON.
> I got a message "No registers." on "target lsi /dev/ttyS0" command.
>
> I think this is because get_selected_frame() is called BEFORE the
> correct target_ops is installed by push_target().
>
> This is a temporary patch. It seems to work, but I can not tell the
> situation mentioned in the "FIXME" comment is really solved or not.
>
>
> --- gdb-6.0/gdb/remote-mips.c.org Wed Jun 11 22:16:28 2003
> +++ gdb-6.0/gdb/remote-mips.c Wed Oct 8 16:55:19 2003
> @@ -1494,10 +1494,12 @@
> the request itself succeeds or fails. */
>
> mips_request ('r', 0, 0, &err, mips_receive_wait, NULL);
> +#if 0
> /* FIXME: cagney/2002-11-29: Force the update of selected frame.
> This shouldn't be necessary, only many many places still refer to
> selected_frame directly (instead of using get_selected_frame(). */
> get_selected_frame (); /* Hack!!! */
> +#endif
> }
>
> /* Open a connection to the remote board. */
Hmm, I've got one of these too and see the same error. This looks to
predate the deprecation of selected_frame, so I think it can probably
go away now. Andrew would have a better idea...
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer