From: Daniel Jacobowitz <drow@false.org>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Trouble with GDB & Some 'Can it be done' Debugging questions
Date: Thu, 20 Jul 2006 17:30:55 -0400 [thread overview]
Message-ID: <20060720213055.GA29241@nevyn.them.org> (raw)
In-Reply-To: <44BFEFC1.7090206@bellard.org>
On Thu, Jul 20, 2006 at 11:04:01PM +0200, Fabrice Bellard wrote:
> Daniel Jacobowitz wrote:
> >On Wed, Jul 19, 2006 at 08:43:57AM +0000, Steve Ellenoff wrote:
> >
> >>#3) Anytime I try to dump the instruction at the current IP such as:
> >>(gdb) x /10i $eip
> >>
> >>I get this - which means it's not actually reading or displaying the
> >>memory properly, since those look to be what you would see if it was all
> >>0 in memory (or maybe it's all 0xff - whichever).l
> >>
> >>0xe05f: add %al,(%eax)
> >
> >
> >qemu doesn't report memory errors to GDB. It reports -1 values
> >instead. This is annoying. I think I posted a patch for it once and
> >never followed up when it was ignored.
>
> This is not correct: an error is correctly reported by the QEMU gdb stub...
Must've been fixed then! Sorry. In that case, Steve, you're probably
reading the wrong address (maybe segmentation-related?).
--
Daniel Jacobowitz
CodeSourcery
prev parent reply other threads:[~2006-07-20 21:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-19 8:43 [Qemu-devel] Trouble with GDB & Some 'Can it be done' Debugging questions Steve Ellenoff
2006-07-20 7:11 ` Mulyadi Santosa
2006-07-27 3:11 ` Steve Ellenoff
2006-07-20 19:17 ` Daniel Jacobowitz
2006-07-20 21:04 ` Fabrice Bellard
2006-07-20 21:30 ` Daniel Jacobowitz [this message]
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