GNU bug report logs - #24414
25.1; GDB gdb-show-main error

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Live System User <nyc4bos <at> aol.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.1; GDB gdb-show-main error
Date: Sun, 11 Sep 2016 13:27:14 -0400

Hi,

        I am getting the following error using GDB on a C executable:

0. emacs -Q &

1. M-: (setq debug-on-error t)
   M-: (setq gdb-show-main t)

2. M-x gdb
   Run gdb (like this): gdb -i=mi test


Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
  gdb-show-stop-p()
  (or (not (memq gud-minor-mode (quote (gdbmi pdb)))) (gdb-show-stop-p))
  redisplay_internal\ \(C\ function\)()
  redisplay()
  sit-for(0)
  execute-extended-command(nil "gdb" "gdb")
  funcall-interactively(execute-extended-command nil "gdb" "gdb")
  call-interactively(execute-extended-command nil nil)
  command-execute(execute-extended-command)




  Thanks.


In GNU Emacs 25.1.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.20.9)
 of 2016-08-30 built on buildvm-06.phx2.fedoraproject.org
Windowing system distributor 'Fedora Project', version 11.0.11803000
Configured using:
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 --host=x86_64-redhat-linux-gnu --program-prefix=
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 --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
 --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64
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 --sharedstatedir=/var/lib --mandir=/usr/share/man
 --infodir=/usr/share/info --with-dbus --with-gif --with-jpeg --with-png
 --with-rsvg --with-tiff --with-xft --with-xpm --with-x-toolkit=gtk3
 --with-gpm=no --with-xwidgets build_alias=x86_64-redhat-linux-gnu
 host_alias=x86_64-redhat-linux-gnu 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g
 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
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Configured features:
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ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 XWIDGETS

Important settings:
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Group

Minor modes in effect:
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Recent messages:
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Message #10 received at 24414-done <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Live System User <nyc4bos <at> aol.com>
Cc: 24414-done <at> debbugs.gnu.org
Subject: Re: bug#24414: 25.1; GDB gdb-show-main error
Date: Sun, 11 Sep 2016 22:09:07 +0300

> From: Live System User <nyc4bos <at> aol.com>
> Date: Sun, 11 Sep 2016 13:27:14 -0400
> 
> 0. emacs -Q &
> 
> 1. M-: (setq debug-on-error t)
>    M-: (setq gdb-show-main t)
> 
> 2. M-x gdb
>    Run gdb (like this): gdb -i=mi test
> 
> 
> Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
>   gdb-show-stop-p()
>   (or (not (memq gud-minor-mode (quote (gdbmi pdb)))) (gdb-show-stop-p))
>   redisplay_internal\ \(C\ function\)()

Thanks, this is now fixed on the master branch.

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