From: "Francis Moreau" <francis.moro@gmail.com>
To: "Nick Roberts" <nickrob@snap.net.nz>
Cc: help-gnu-emacs@gnu.org
Subject: Re: gud : Phase error in gdb-pre-prompt (got pre-emacs)
Date: Tue, 1 Jul 2008 16:07:20 +0200 [thread overview]
Message-ID: <38b2ab8a0807010707u79067c60yf83d83824e90cb3b@mail.gmail.com> (raw)
In-Reply-To: <18537.23288.486975.94604@kahikatea.snap.net.nz>
Hello,
On Tue, Jul 1, 2008 at 12:15 AM, Nick Roberts <nickrob@snap.net.nz> wrote:
> > Here it is:
> >
> > gdb-debug-log is a variable defined in `gdb-ui.el'.
> > Its value is
> > ((recv . "\n^Z^Zpre-prompt\n(gdb) \n^Z^Zprompt\n")
> > (recv . "\n^Z^Zpost-prompt\n^done,frame={level=\"0\",addr=\"0x84002000\",func=\"_stext\"}\n(gdb)
> > \n")
> > (send-item "server interpreter mi -stack-info-frame\n" gdb-get-version))
>
>
> That shows to me that execution has already begun and is in the function
> _stext, so "run" wouldn't be an appropriate command to send anyway.
Well actually I lied, I don't do 'run' but 'continue' but I've never
figured out why...
> It normally starts (ends) like this:
>
> ...
> (recv . "\n^Z^Zpre-prompt\n(gdb) \n^Z^Zprompt\n")
> (recv . "\n^Z^Zpost-prompt\n")
> (send-item "set width 0\n" ignore)
> (recv . "\n^Z^Zpre-prompt\n(gdb) \n^Z^Zprompt\n")
> (recv . "\n^Z^Zpost-prompt\n")
> (send-item "set height 0\n" ignore)
> (recv . "\n^Z^Zpre-prompt\n(gdb) \n^Z^Zprompt\n")
> (recv . "\n^Z^Zpost-prompt\n&\"\\n^Z^Zerror-begin\\n\"\n&\"No registers.\\n\"\n~\"\\n\"\n~\"^Z^Zerror\\n\"\n^error,msg=\"No registers.\"\n(gdb) \n")
> (send-item "server interpreter mi -stack-info-frame\n" gdb-get-version))
>
> I understand why Emacs stops sending GDB commands after -stack-info-frame in
> your case.
Note that I can't issue any command when emacs is in this state.
They just get stuck.
> What are the values of the variables
>
> gdb-input-queue
> gdb-pending triggers
> gdb-ready
> gud-runnning
>
> at this point?
>
gdb-input-queue is a variable defined in `gdb-ui.el'.
Its value is
(("server info source\n" gdb-source-info)
("server list\n" ignore)
("server interpreter mi \"-file-list-exec-source-files\"\n"
gdb-set-gud-minor-mode-existing-buffers-1)
("server interpreter mi -data-list-register-names\n" gdb-get-register-names)
("set width 0\n" ignore)
("set height 0\n" ignore))
gdb-pending-triggers is a variable defined in `gdb-ui.el'.
Its value is nil
gdb-ready is a variable defined in `gud.el'.
Its value is nil
gud-running is a variable defined in `gud.el'.
Its value is nil
> Isn't the kernel debugged through a remote stub in a patched gdb (kgdb)?
Yes probably, I'm using a gdb patched by a third party but don't know and can't
figure out what has been patched...
>
> Also there was a thread "kgdb in emacs" in help-gnu-emacs back in April of this
> year.
>
> If you make prgress with this problem please post a description to the list (or
> emacs-devel) so I can add it to the documentation.
No problem. Which documentation are you talking about BTW ?
But I can add 2 more info about this issue:
First, starting gdb from a shell works fine.
Second point is emacs 21 used to work.
Thanks
--
Francis
next prev parent reply other threads:[~2008-07-01 14:07 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-27 8:52 gud : Phase error in gdb-pre-prompt (got pre-emacs) Markus Grunwald
2008-06-27 10:18 ` Nick Roberts
2008-06-30 11:37 ` Francis Moreau
2008-06-30 22:15 ` Nick Roberts
2008-07-01 14:07 ` Francis Moreau [this message]
2008-07-01 22:41 ` Nick Roberts
2008-07-07 7:59 ` Francis Moreau
2008-07-07 9:19 ` Nick Roberts
2008-07-15 7:49 ` Francis Moreau
2008-07-22 14:49 ` Francis Moreau
[not found] ` <mailman.13892.1214569215.18990.help-gnu-emacs@gnu.org>
2008-06-27 14:23 ` Markus Grunwald
2008-06-27 23:49 ` Nick Roberts
2008-07-03 7:16 ` hui wang
2008-07-03 7:35 ` Nick Roberts
[not found] ` <mailman.13907.1214610613.18990.help-gnu-emacs@gnu.org>
2008-06-30 12:45 ` Markus Grunwald
2008-06-30 13:44 ` Francis Moreau
2008-07-01 2:04 ` Nick Roberts
[not found] ` <mailman.14044.1214879193.18990.help-gnu-emacs@gnu.org>
2008-07-02 14:18 ` Markus Grunwald
2008-07-03 0:22 ` Nick Roberts
[not found] ` <mailman.14136.1215044558.18990.help-gnu-emacs@gnu.org>
2008-07-03 7:51 ` Markus Grunwald
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