The following reply was made to PR backtrace/2224; it has been noted by GNATS.
From: "Godmar Back" <godmar@xxxxxxxxx>
To: "Daniel Jacobowitz" <drow@xxxxxxxxx>
Cc: gdb-gnats@xxxxxxxxxxxxxxxxxx
Subject: Re: backtrace/2224: backtrace doesn't work with bochs stub anymore
Date: Tue, 6 Feb 2007 23:12:01 -0500
On 2/6/07, Godmar Back <godmar@xxxxxxxxx> wrote:
> On 2/6/07, Daniel Jacobowitz <drow@xxxxxxxxx> wrote:
> > On Tue, Feb 06, 2007 at 10:29:09PM -0500, Godmar Back wrote:
> > > You mean the "invalid hex digit 78" message?
> > > I'm pretty sure this is because the bochs stub, which is the stub that
> > > has the issue, sends the string literal "ENN" instead of "Enn" where
> > > "nn" is a hex number. Note that 'N' is dec 78.
> >
> > Note, this is not a command error (part of the protocol) it's a
> > protocol error. GDB may just throw up its hands and stop talking to
> > the target.
> >
Indeed, changing bochs such that it returns "Eff" instead of "ENN"
fixed the issue.
I will file a bug report with bochs.
I would urge you to consider, however, to recreate the earlier, more
permissive protocol handling you had in place for earlier gdb
versions.
See also Postel's Law: http://en.wikipedia.org/wiki/Postel's_law
- Godmar
|
