bug#9441: in GUD, gdb mode, src buffer wont show with gdb's file command

bug#9441: in GUD, gdb mode, src buffer wont show with gdb's file command

[Πρεκατές Αλέξανδρος]

in GUD if i try to open an executable with 'file' commmand from within gdb 
buffer, then src file wont open. but if put the file as argument to gdb in the 
start (after M-x gdb) then it'll'show.


aprekates


In GNU Emacs 23.2.1 (x86_64-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2010-12-11 on brahms, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
configured using `configure  '--build' 'x86_64-linux-gnu' '--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/emacs23:/etc/emacs:/usr/local/share/emacs/23.2/site-
lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.2/site-
lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.2/leim' '--with-x=yes' '--
with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 'build_alias=x86_64-linux-
gnu' 'CFLAGS=-DDEBIAN -g -O2' 'LDFLAGS=-g' 'CPPFLAGS=''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: el_GR.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

bug#9441: in GUD, gdb mode, src buffer wont show with gdb's file command

[Lars Ingebrigtsen]

Πρεκατές Αλέξανδρος <aprekates@gmail.com> writes:

> in GUD if i try to open an executable with 'file' commmand from within
> gdb buffer, then src file wont open. but if put the file as argument
> to gdb in the start (after M-x gdb) then it'll'show.

(I'm going through old Emacs bug reports that unfortunately got no
response at the time.)

I'm not quite sure what you mean here.  If I say

`M-x gdb RET gdb -i=mi src/emacs'

or

`M-x gdb RET gdb -i=mi'

and then

file src/emacs

in the gud buffer the result look identical to me.

Do you have a more complete recipe for how to reproduce this error?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

bug#9441: in GUD, gdb mode, src buffer wont show with gdb's file command

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Thu, 03 Oct 2019 18:22:34 +0200
> Cc: 9441@debbugs.gnu.org
> 
> Πρεκατές Αλέξανδρος <aprekates@gmail.com> writes:
> 
> > in GUD if i try to open an executable with 'file' commmand from within
> > gdb buffer, then src file wont open. but if put the file as argument
> > to gdb in the start (after M-x gdb) then it'll'show.
> 
> (I'm going through old Emacs bug reports that unfortunately got no
> response at the time.)
> 
> I'm not quite sure what you mean here.  If I say
> 
> `M-x gdb RET gdb -i=mi src/emacs'
> 
> or
> 
> `M-x gdb RET gdb -i=mi'
> 
> and then
> 
> file src/emacs
> 
> in the gud buffer the result look identical to me.

He was using "M-x gud-gdb", which works slightly differently.

bug#9441: in GUD, gdb mode, src buffer wont show with gdb's file command

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

>> > in GUD if i try to open an executable with 'file' commmand from within
>> > gdb buffer, then src file wont open. but if put the file as argument
>> > to gdb in the start (after M-x gdb) then it'll'show.

[...]

> He was using "M-x gud-gdb", which works slightly differently.

I tried with

`M-x gdb --fullname src/emacs RET'

and

`M-x gdb --fullname RET'
file src/emacs

and...  The results aren't identical, but I'm not quite sure what's
meant by "then src file wont open".  I don't get a source file in any
case anywhere.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

bug#9441: in GUD, gdb mode, src buffer wont show with gdb's file command

[Eli Zaretskii]

On October 7, 2019 6:35:22 AM GMT+03:00, Lars Ingebrigtsen <larsi@gnus.org> wrote:
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > He was using "M-x gud-gdb", which works slightly differently.
> 
> I tried with
> 
> `M-x gdb --fullname src/emacs RET'
> 
> and
> 
> `M-x gdb --fullname RET'
> file src/emacs
> 
> and...  The results aren't identical, but I'm not quite sure what's
> meant by "then src file wont open".  I don't get a source file in any
> case anywhere.

I meant to invoke "M-x gud-gdb" literally.  It's a different command, and the difference is not just in switches passed to GDB.

If the source file is not displayed immediately, try starting the program, with the "start" command typed at the GDB prompt.

bug#9441: in GUD, gdb mode, src buffer wont show with gdb's file command

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

>> I tried with
>> 
>> `M-x gdb --fullname src/emacs RET'
>> 
>> and
>> 
>> `M-x gdb --fullname RET'
>> file src/emacs
>> 
>> and...  The results aren't identical, but I'm not quite sure what's
>> meant by "then src file wont open".  I don't get a source file in any
>> case anywhere.
>
> I meant to invoke "M-x gud-gdb" literally.  It's a different command,
> and the difference is not just in switches passed to GDB.

Sorry, I just typed wrong up here -- I tried the `M-x gud-gdb' command
in the examples.

> If the source file is not displayed immediately, try starting the
> program, with the "start" command typed at the GDB prompt.

Yes, when I say "start", Emacs pops up the emacs.c buffer.  Nice.  :-)

But this also works when I start without a file name, and then say "file
src/emacs" after gdb has started.

So I guess this bug has been fixed?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

bug#9441: in GUD, gdb mode, src buffer wont show with gdb's file command

[Eli Zaretskii]

On October 7, 2019 8:18:48 AM GMT+03:00, Lars Ingebrigtsen <larsi@gnus.org> wrote:
> 
> Yes, when I say "start", Emacs pops up the emacs.c buffer.  Nice.  :-)
> 
> But this also works when I start without a file name, and then say
> "file
> src/emacs" after gdb has started.
> 
> So I guess this bug has been fixed?

Looks like it was fixed, yes.

bug#9441: in GUD, gdb mode, src buffer wont show with gdb's file command

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

> Looks like it was fixed, yes.

OK; closing.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no