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From: Kevin Buettner <kevinb@redhat.com>
To: Romain Berrendonner <berrendo@ACT-Europe.FR>
Cc: gdb@sources.redhat.com
Subject: Re: compatibility between gdb and stub
Date: Wed, 27 Nov 2002 11:34:00 -0000	[thread overview]
Message-ID: <1021127193435.ZM31733@localhost.localdomain> (raw)
In-Reply-To: Romain Berrendonner <berrendo@ACT-Europe.FR> "Re: compatibility between gdb and stub" (Nov 21, 10:44am)

On Nov 21, 10:44am, Romain Berrendonner wrote:

> On 2002-11-20, Kevin Buettner wrote :
> 
> > 
> > As I understand it, if a stub replies with a short "g" packet, then
> > gdb will simply regard the missing registers as being unavailable.
> > 
> Let's take the example of the 750, with a stub not aware of fpscr.
> 
> They are many registers after fpscr (the first of them is sr0).
> With this scheme, when the stub sends back the answer to a 'g' packet,
> gdb will consider that the content of fpscr is the content of sr0, and that
> thrm3 (the last register) is not available.

This would be true if fpscr was simply added in the middle.  However,
when I "added" fpscr, I made it replace a previously unused slot.  So,
what should happen in this case is that gdb will simply get a zero (or
some other bogus value) for fpscr.

Kevin


      parent reply	other threads:[~2002-11-27 19:34 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-18  6:09 Romain Berrendonner
2002-11-18  8:05 ` Andrew Cagney
2002-11-18  8:46   ` Romain Berrendonner
2002-11-18 14:56 ` Kevin Buettner
2002-11-18 17:40   ` Steven Johnson
2002-11-18 17:43     ` Daniel Jacobowitz
2002-11-19  1:20   ` Romain Berrendonner
2002-11-20 13:04     ` Kevin Buettner
2002-11-20 13:19       ` Andrew Cagney
2002-11-21  1:44       ` Romain Berrendonner
2002-11-26 13:56         ` Andrew Cagney
2002-11-26 15:37           ` Steven Johnson
2002-11-26 16:01             ` Andrew Cagney
2002-11-27 11:34         ` Kevin Buettner [this message]

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