GNU bug report logs - #25844
26.0.50; gdb doesn't respect '$INSIDE_EMACS' shell variables

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

From: Mohammed Sadiq <sadiq <at> sadiqpk.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 26.0.50; gdb doesn't respect '$INSIDE_EMACS' shell variables
Date: Thu, 23 Feb 2017 07:45:10 +0530

M-x gdb doesn't seem to respect variables set with '$INSIDE_EMACS'

Ie, my bashrc has some variables set as:
if [ '$INSIDE_EMACS' ]
   foo='FOO'
   bar='BAR'
fi

And when I run M-x gdb, it seems not to work.

Instead, if I run emacs this way: foo='FOO' emacs
and run gdb, the variable is respected

The variable I was trying to set was G_DEBUG='fatal-criticals'

Thanks


In GNU Emacs 26.0.50.3 (x86_64-pc-linux-gnu, GTK+ Version 3.22.6)
 of 2017-02-05 built on rose
Repository revision: 148100d98319499f0ac6f57b8be08cbd14884a5c
Windowing system distributor 'The X.Org Foundation', version 11.0.11901000
System Description:	Debian GNU/Linux 9.0 (stretch)

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Making completion list...

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 LIBSYSTEMD

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

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
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  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
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
None found.

Features:
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Memory information:
((conses 16 97836 9217)
 (symbols 48 20259 1)
 (miscs 40 420 154)
 (strings 32 18154 4104)
 (string-bytes 1 587387)
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Message #8 received at 25844 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Mohammed Sadiq <sadiq <at> sadiqpk.org>
Cc: 25844 <at> debbugs.gnu.org
Subject: Re: bug#25844: 26.0.50;
 gdb doesn't respect '$INSIDE_EMACS' shell variables
Date: Wed, 22 Feb 2017 21:44:41 -0500

Mohammed Sadiq wrote:

> M-x gdb doesn't seem to respect variables set with '$INSIDE_EMACS'
>
> Ie, my bashrc has some variables set as:
> if [ '$INSIDE_EMACS' ]
>    foo='FOO'
>    bar='BAR'
> fi
>
> And when I run M-x gdb, it seems not to work.

When Emacs runs a debugger, it does not use a shell to do so,
so your .bashrc isn't consulted. In general external processes that
Emacs starts don't go via a shell unless they really need to.
I don't think this is an Emacs bug.

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