GNU bug report logs - #22374
24.4; Buffers of previously open files appear in gud interaction window instead of source window in many-windows mode

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

From: Michael Buksas <mwbuksas <at> stellarscience.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.4; Buffers of previously open files appear in gud interaction
 window instead of source window in many-windows mode
Date: Thu, 14 Jan 2016 16:59:19 -0700

If a file is open before running gdb and many-windows mode, and is not
currently visible in the source code window, switching to
the file by clicking or pressing enter on a line in the stack frame
window will cause the buffer to appear in the gud interaction window,
and not in the source window.

To reproduce:

1) Create a test code test.cpp containing:

int main() { while (1) { } return 0; }

2) Compile with debugging symbols

> gcc test.cpp -g

3) Run emacs:

> emacs -Q

4) Open test.cpp in emacs.

5) Run gdb and select a.out if necessary.

6) Enter many-windows mode with M-x many-windows-mode

7) Start the program in the gud interaction window:

> (gdb) start

8) Switch to a different buffer in the source window. e.g. *scratch*

9) Middle-click the single line in the stack frame window.

The buffer for file test.cpp will appear in the gud interaction window,
instead of the source window.

If you omit step 4. The file test.cpp will appear in the source window.


Thanks!



In GNU Emacs 24.4.1 (x86_64-pc-linux-gnu, GTK+ Version 3.14.9)
of 2015-03-21 on kissel, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11701000
System Description: Ubuntu 15.04

Configured using:
`configure --build x86_64-linux-gnu --prefix=/usr
--sharedstatedir=/var/lib --libexecdir=/usr/lib
--localstatedir=/var/lib --infodir=/usr/share/info
--mandir=/usr/share/man --with-pop=yes
--enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.4/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.4/site-lisp:/usr/share/emacs/site-lisp
--build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib
--libexecdir=/usr/lib --localstatedir=/var/lib
--infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes
--enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.4/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.4/site-lisp:/usr/share/emacs/site-lisp
--with-x=yes --with-x-toolkit=gtk3 --with-toolkit-scroll-bars
'CFLAGS=-g -O2 -fstack-protector-strong -Wformat
-Werror=format-security -Wall' CPPFLAGS=-D_FORTIFY_SOURCE=2
'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro''

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

Major mode: Frames [thread 1]

Minor modes in effect:
gdb-many-windows: t
tooltip-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
buffer-read-only: t
line-number-mode: t
transient-mark-mode: t

Recent input:
<help-echo> M-x g d b <return> <return> M-x g d b -
m a n y - w i n <tab> <return> r u n <return> C-c C-c
<help-echo> <help-echo> <help-echo> <down-mouse-2>
<mouse-2> <help-echo> <help-echo> <down-mouse-1> <mouse-1>
C-x b <return> <help-echo> <help-echo> <down-mouse-2>
<mouse-2> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> M-x
r e p o r t - a m <backspace> <backspace> e m a c s
- b u g <return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Target doesn't support non-stop mode. Turning it off.
Gdb-Many-Windows mode enabled
Switched to thread 1

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
help-fns mail-prsvr mail-utils cus-start cus-load gdb-mi bindat json gud
easy-mmode comint ansi-color ring cc-langs cl-loaddefs cl-lib cc-mode
cc-fonts easymenu cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine
cc-vars cc-defs time-date tooltip electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment lisp-mode prog-mode register page

-- 
Michael Buksas
Stellar Science, LLC
mwbuksas <at> stellarscience.com
www.stellarscience.com

Message #12 received at 22374 <at> debbugs.gnu.org (full text, mbox):

From: Noam Postavsky <npostavs <at> gmail.com>
To: martin rudalics <rudalics <at> gmx.at>
Cc: Michael Welsh Duggan <mwd <at> md5i.com>, 22374 <at> debbugs.gnu.org,
 Michael Buksas <mwbuksas <at> stellarscience.com>
Subject: Re: bug#22374: Buffers of previously open files appear in gud
 interaction window instead of source window in many-windows mode
Date: Mon, 21 May 2018 16:38:31 -0400

[Message part 1 (text/plain, inline)]

[moving from bug#17675 to #22374]

martin rudalics <rudalics <at> gmx.at> writes:

> If you think that this might solve Bug#22374, I'd go for it.  Can you
> explain how it solves that bug?

Oh, I only observed that it [35] fixes the bug, I was hoping you could
explain it.  Actually, it looks like the explanation you put before [20]
still applies.  The reason the inhibit-same-window fix doesn't help is
that step 9 (middle-click the single line in the stack frame window)
changes the current window, hence the gud interaction window is no
longer the "same-window" and not inhibited.

[do-test.el (text/plain, attachment)]

[Message part 3 (text/plain, inline)]

[20]: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=17675#20
[35]: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=17675#35

Message #15 received at 22374 <at> debbugs.gnu.org (full text, mbox):

From: martin rudalics <rudalics <at> gmx.at>
To: Noam Postavsky <npostavs <at> gmail.com>
Cc: Michael Welsh Duggan <mwd <at> md5i.com>, 22374 <at> debbugs.gnu.org,
 Michael Buksas <mwbuksas <at> stellarscience.com>
Subject: Re: bug#22374: Buffers of previously open files appear in gud
 interaction window instead of source window in many-windows mode
Date: Tue, 22 May 2018 09:24:52 +0200

> The reason the inhibit-same-window fix doesn't help is
> that step 9 (middle-click the single line in the stack frame window)
> changes the current window, hence the gud interaction window is no
> longer the "same-window" and not inhibited.

Then I think you should install it and we will see soon enough
whether it has any bad side effects.

martin

Message #18 received at 22374 <at> debbugs.gnu.org (full text, mbox):

From: Noam Postavsky <npostavs <at> gmail.com>
To: martin rudalics <rudalics <at> gmx.at>
Cc: Michael Welsh Duggan <mwd <at> md5i.com>, 22374 <at> debbugs.gnu.org,
 Michael Buksas <mwbuksas <at> stellarscience.com>
Subject: Re: bug#22374: Buffers of previously open files appear in gud
 interaction window instead of source window in many-windows mode
Date: Wed, 23 May 2018 19:11:42 -0400

tags 22374 fixed
close 22374 27.1
quit

martin rudalics <rudalics <at> gmx.at> writes:

>> The reason the inhibit-same-window fix doesn't help is
>> that step 9 (middle-click the single line in the stack frame window)
>> changes the current window, hence the gud interaction window is no
>> longer the "same-window" and not inhibited.
>
> Then I think you should install it and we will see soon enough
> whether it has any bad side effects.

Done.

[1: 0d224e8241]: 2018-05-23 07:53:58 -0400
  Avoid messing up buffer list when starting gud (Bug#22374)
  https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=0d224e82411d9471f03fc339890d6a2952b5e239

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