From: Michael Snyder <msnyder@redhat.com>
To: gdb@sources.redhat.com, Eli Zaretskii <eliz@is.elta.co.il>,
Daniel Jacobowitz <drow@mvista.com>
Subject: Re: [discuss] Support for reverse-execution
Date: Fri, 20 May 2005 21:11:00 -0000 [thread overview]
Message-ID: <428E527D.70402@redhat.com> (raw)
In regards to the question "where does a reverse-step put you?"
(ie. at the beginning of a line, or somewhere in the line):
> Sorry, I'm confused. Isn't it right that if I'm stepping
> backwards through code such as this:
>
> i += 1;
> foo (i);
> =>i = 0;
>
> where "=>" shows the current source line, then typing `rnext'
> once will get me to this:
>
> i += 1;
> =>foo (i);
> i = 0;
>
> which means I'm now before the CALL insn that calls `foo'?
I agree with this interpretation. If I am a user (and I am),
and I were to say:
(gdb) step
(gdb) reverse-step (or whatever)
I would expect to be back where I started, ie. at the
*beginning* of the original line.
Dan J. has said that we might need to reverse-stepi until
we've gone back one too many, and then do a forward step.
I agree. In fact, I think it will be necessary to do
the following:
(gdb) reverse-step
# reverse-stepi once (or until we leave the *current* line)
# now establish the step-range start and end (prev line)
# reverse-stepi until we leave the prev line
# stepi once to get back to the desired line.
next reply other threads:[~2005-05-20 21:11 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-20 21:11 Michael Snyder [this message]
2005-05-20 21:27 ` Daniel Jacobowitz
-- strict thread matches above, loose matches on Subject: below --
2005-05-21 15:53 Paul Schlie
2005-05-20 22:11 Michael Snyder
2005-05-20 23:32 ` Paul Schlie
2005-05-20 21:59 Michael Snyder
2005-05-20 21:51 Michael Snyder
2005-05-21 9:44 ` Eli Zaretskii
2005-05-20 21:44 Michael Snyder
2005-05-20 21:25 Michael Snyder
2005-05-20 21:16 Michael Snyder
2005-05-20 21:31 ` Daniel Jacobowitz
2005-05-21 9:39 ` Eli Zaretskii
2005-05-23 18:19 ` Michael Snyder
2005-05-20 19:02 Michael Snyder
2005-05-20 20:43 ` Eli Zaretskii
2005-05-20 21:03 ` Michael Snyder
2005-05-20 15:49 Paul Schlie
2005-05-20 17:41 ` Dan Shearer
2005-05-20 22:01 ` Paul Schlie
2005-05-20 22:08 ` Daniel Jacobowitz
2005-05-20 22:43 ` Paul Schlie
2005-05-21 0:58 ` Daniel Jacobowitz
2005-05-21 1:42 ` Paul Schlie
2005-05-21 1:53 ` Daniel Jacobowitz
2005-05-21 1:56 ` Daniel Jacobowitz
2005-05-21 15:03 ` Paul Schlie
2005-05-21 14:13 ` Paul Schlie
2005-05-21 14:23 ` Daniel Jacobowitz
2005-05-21 15:04 ` Paul Schlie
2005-05-20 20:58 ` Michael Snyder
2005-05-20 21:35 ` Paul Schlie
2005-05-19 1:23 Dan Shearer
2005-05-19 13:01 ` Johan Rydberg
2005-05-19 13:18 ` Daniel Jacobowitz
2005-05-19 13:47 ` Johan Rydberg
2005-05-20 10:37 ` Eli Zaretskii
2005-05-20 11:37 ` Andreas Schwab
2005-05-20 13:18 ` Daniel Jacobowitz
2005-05-20 13:36 ` Fabian Cenedese
2005-05-20 13:47 ` Daniel Jacobowitz
2005-05-20 14:41 ` Eli Zaretskii
2005-05-20 22:14 ` Daniel Jacobowitz
2005-05-20 12:22 ` Johan Rydberg
2005-05-20 13:19 ` Daniel Jacobowitz
2005-05-20 14:12 ` Eli Zaretskii
2005-05-20 13:14 ` Daniel Jacobowitz
2005-05-20 14:34 ` Eli Zaretskii
2005-05-20 15:40 ` Johan Rydberg
2005-05-20 10:47 ` Eli Zaretskii
2005-05-16 17:47 Dan Shearer
2005-05-16 18:04 ` Dan Shearer
2005-05-20 18:15 ` Daniel Jacobowitz
2005-05-21 0:05 ` Frank Ch. Eigler
2005-05-21 10:13 ` Eli Zaretskii
2005-05-21 10:28 ` Russell Shaw
2005-05-21 12:38 ` Eli Zaretskii
2005-05-21 12:55 ` Russell Shaw
2005-05-21 14:39 ` Russell Shaw
2005-05-21 14:19 ` Daniel Jacobowitz
2005-05-21 15:46 ` Eli Zaretskii
2005-05-21 17:43 ` Daniel Jacobowitz
2005-05-23 19:39 ` Dan Shearer
2005-05-12 23:08 Michael Snyder
2005-05-13 6:23 ` Eli Zaretskii
2005-05-19 13:46 ` Daniel Jacobowitz
2005-05-19 18:46 ` Michael Snyder
2005-05-19 19:26 ` Johan Rydberg
2005-05-20 10:55 ` Eli Zaretskii
2005-05-20 13:04 ` Daniel Jacobowitz
2005-05-20 14:30 ` Eli Zaretskii
2005-05-20 14:43 ` Andreas Schwab
2005-05-20 20:48 ` Michael Snyder
2005-05-20 20:51 ` Daniel Jacobowitz
2005-05-20 20:38 ` Michael Snyder
2005-05-20 15:05 ` Vladimir Prus
2005-05-20 15:58 ` Eli Zaretskii
2005-05-20 18:14 ` Daniel Jacobowitz
2005-05-20 18:30 ` Eli Zaretskii
2005-05-20 19:27 ` Stan Shebs
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=428E527D.70402@redhat.com \
--to=msnyder@redhat.com \
--cc=drow@mvista.com \
--cc=eliz@is.elta.co.il \
--cc=gdb@sources.redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).