problems in gud under emacs

problems in gud under emacs

[Chun Zhang]

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Hi all,

I'm running into problems debugging c++ under emacs. When I start the
debugging command:

M-x gdb --annotate=3 myprogram

The gdb shell does not prompt. Instead it stuck after showing "(gdb) Current
directory is ~/programs/small/" as pasted below. I can't type any debug
command then... However the status bar shows no error messages. Does any
body know how to fix it? Thank you!

GNU gdb (Ubuntu/Linaro 7.2-1ubuntu11) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/...
Reading symbols from /home/chzhang/programs/small/loop...done.
(gdb) Current directory is ~/programs/small/


-- 
Best Regards,

======================
Chun Zhang
chun.zhang.cz@gmail.com

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Re: problems in gud under emacs

[S Boucher]

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Try running gdb outside of emacs, and use the --nx gdb command line option.

gdb --nx myprogram

and in emacs:

gdb --nx --annotate=3 myprogram

gud (emacs gdb) is not super robust.  It can get confused about the state of gdb when gdb has weird output.

Your "Current directory ...." should really be the first line.  Certainly, there shouldn't be anything after (gdb).  So, gud may well be confused.



>________________________________
>From: Chun Zhang <chun.zhang.cz@gmail.com>
>To: help-gnu-emacs@gnu.org
>Sent: Tuesday, October 18, 2011 7:06:24 AM
>Subject: problems in gud under emacs
>
>
>Hi all,
>I'm running into problems debugging c++ under emacs. When I start the debugging command:
>M-x gdb --annotate=3 myprogram
>The gdb shell does not prompt. Instead it stuck after showing "(gdb) Current directory is ~/programs/small/" as pasted below. I can't type any debug command then... However the status bar shows no error messages. Does any body know how to fix it? Thank you!
>GNU gdb (Ubuntu/Linaro 7.2-1ubuntu11) 7.2 
>Copyright (C) 2010 Free Software Foundation, Inc. 
>License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html 
>This is free software: you are free to change and redistribute it. 
>There is NO WARRANTY, to the extent permitted by law. Type "show copying" 
>and "show warranty" for details. 
>This GDB was configured as "x86_64-linux-gnu". 
>For bug reporting instructions, please see: 
>http://www.gnu.org/software/gdb/bugs/... 
>Reading symbols from /home/chzhang/programs/small/loop...done. 
>(gdb) Current directory is ~/programs/small/ 
>
>
>
>
>-- 
>Best Regards,
>
>======================
>Chun Zhang
>chun.zhang.cz@gmail.com
>
>
>

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Re: problems in gud under emacs

[Chun Zhang]

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Thanks a lot. But actually I don't have the .gdbinit file.

Now instead of installing emacs through apt-get, I checked out and compiled
the 23.3a version. The problem is well solved.

On Tue, Oct 18, 2011 at 11:13 PM, S Boucher <stbya@yahoo.com> wrote:

> Try running gdb outside of emacs, and use the --nx gdb command line option.
>
> gdb --nx myprogram
>
> and in emacs:
>
> gdb --nx --annotate=3 myprogram
>
> gud (emacs gdb) is not super robust.  It can get confused about the state
> of gdb when gdb has weird output.
>
> Your "Current directory ...." should really be the first line.  Certainly,
> there shouldn't be anything after (gdb).  So, gud may well be confused.
>
> ------------------------------
> *From:* Chun Zhang <chun.zhang.cz@gmail.com>
> *To:* help-gnu-emacs@gnu.org
> *Sent:* Tuesday, October 18, 2011 7:06:24 AM
> *Subject:* problems in gud under emacs
>
>  Hi all,
> I'm running into problems debugging c++ under emacs. When I start the
> debugging command:
> M-x gdb --annotate=3 myprogram
> The gdb shell does not prompt. Instead it stuck after showing "(gdb)
> Current directory is ~/programs/small/" as pasted below. I can't type any
> debug command then... However the status bar shows no error messages. Does
> any body know how to fix it? Thank you!
>  GNU gdb (Ubuntu/Linaro 7.2-1ubuntu11) 7.2
> Copyright (C) 2010 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> http://gnu.org/licenses/gpl.html
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-linux-gnu".
> For bug reporting instructions, please see:
> http://www.gnu.org/software/gdb/bugs/...
> Reading symbols from /home/chzhang/programs/small/loop...done.
> (gdb) Current directory is ~/programs/small/
>
>
> --
> Best Regards,
>
> ======================
> Chun Zhang
> chun.zhang.cz@gmail.com
>
>
>


-- 
Best Regards,

======================
Chun Zhang
chun.zhang.cz@gmail.com

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