Subject: Re: bug#6072: 24.0.50; Problems with M-x gdb on MS-Windows

From: Stefan Kangas <[email-masked]>
Date: Wed, 23 Oct 2019 13:32:03 +0200

Hi Eli,

Below is a 9 year old bug report of yours, which never got a reply at the time.

A lot of water has flowed under the bridge since then, so: is this
still an issue?

Best regards,
Stefan Kangas

Eli Zaretskii <[email-masked]> writes:

> With today's repository:
>
>  emacs -Q
>  M-x gdb RET C-a C-k gdb --i=mi ../lib-src/oo-spd/i386/ctags.exe RET
>
> In the GUD buffer, type
>
>  (gdb) start --help
>
> This is what I see:
>
>     Current directory is d:/gnu/bzr/emacs/test/lib-src/oo-spd/i386/
>     GNU gdb (GDB) 7.1
>     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 "mingw32".
>     For bug reporting instructions, please see:
>     <http://www.gnu.org/software/gdb/bugs/>...
>     Reading symbols from d:/gnu/bzr/emacs/test/lib-src/oo-spd/i386/ctags.exe...done.
>     (gdb) start --help
>     Temporary breakpoint 1 at 0x408eab: file ctags.c, line 1093.
>     The target does not support running in non-stop mode. <<<<<<<<<
>
> Problem #1: Why does it try to start in non-stop mode without checking
> first?
>
> Workaround:
>
>     (gdb) set non-stop off
>
> Problem #2: The mode line says "Debugger:run [unknown]".  Why the
> "unknown" part?
>
> Problem #3:
>
>     (gdb) q
>     A debugging session is active.
>
>         Inferior 1 [process 5972] will be killed.
>
>     Quit anyway? (y or n) [answered Y; input not from terminal]
>
> So it claims that it got the answer Y, so it was supposed to kill the
> inferior, but when I try to exit Emacs with C-x C-c, it says:
>
>   Active process exist; kill them and exit anyway (yes or no)?
>
> and shows me the "*Process List*" buffer with this contents:
>
>     Proc     Status   Buffer   Command
>     ----     ------   ------   -------
>     gdb-inferior run      (Killed)
>
> None of these problems are visible in Emacs 23.1.96 with the same
> version of GDB.
>
> If Emacs crashed, and you have the Emacs process in the gdb debugger,
> please include the output from the following gdb commands:
>     `bt full' and `xbacktrace'.
> For information about debugging Emacs, please read the file
> d:/gnu/bzr/emacs/test/etc/DEBUG.
>
>
> In GNU Emacs 24.0.50.1 (i386-mingw-nt5.1.2600)
>  of 2010-05-01 on HOME-C4E4A596F7
> Windowing system distributor `Microsoft Corp.', version 5.1.2600
> configured using `configure --with-gcc (3.4)'