From: Daniel Jacobowitz <drow@false.org>
To: Michael Snyder <msnyder@vmware.com>
Cc: Julian Smith <jsmith@undo-software.com>,
"gdb@sources.redhat.com" <gdb@sources.redhat.com>
Subject: Re: Some questions about gdb's remote protocol and reverse debugging
Date: Tue, 11 Aug 2009 23:38:00 -0000 [thread overview]
Message-ID: <20090811233741.GA28274@caradoc.them.org> (raw)
In-Reply-To: <4A81FD36.2040009@vmware.com>
On Tue, Aug 11, 2009 at 04:22:30PM -0700, Michael Snyder wrote:
> >Is there any way to tell gdb to try to use hardware breakpoints (with
> >the 'Z1' and 'z1' commands) before resorting to 'M' and 'm' ? [In the
> >environment i'm working in, UndoDB, hardware breakpoints are more
> >convenient because they don't require any patching up of %pc, and
> >poking breakpoints directly into memory is not supported.]
>
> Not as such, no. You use a different syntax to set a hardware
> breakpoint. The command is "hbreak" instead of "break". You
> should at least be able to try stuff out with that.
Or, just make your stub treat Z0 as a hardware breakpoint?
--
Daniel Jacobowitz
CodeSourcery
next prev parent reply other threads:[~2009-08-11 23:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-11 23:00 Julian Smith
2009-08-11 23:24 ` Michael Snyder
2009-08-11 23:38 ` Daniel Jacobowitz [this message]
2009-08-21 10:57 ` Julian Smith
2009-08-21 15:43 ` Jakob Engblom
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