From: Guilhem Bichot <guilhem.bichot@oracle.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 23720@debbugs.gnu.org
Subject: bug#23720: 25.0.94; Issues with GUD (gdb-mi) after upgrade from Emacs 23 to 24/25
Date: Fri, 10 Jun 2016 10:41:27 +0200 [thread overview]
Message-ID: <575A7D37.20108@oracle.com> (raw)
In-Reply-To: <831t46qviz.fsf@gnu.org>
Hello,
Eli Zaretskii a écrit le 09/06/2016 16:36 :
>> Cc: 23720@debbugs.gnu.org
>> From: Guilhem Bichot <guilhem.bichot@oracle.com>
>> Date: Thu, 9 Jun 2016 16:30:16 +0200
>>
>>>> Pressing this STOP button in emacs23 does interrupt it.
>>>> It doesn't anymore in emacs24.
>>>> Is it considered normal?
>>>
>>> I don't think so, but I don't have any more wisdom to offer about
>>> this. AFAIU, -exec-interrupt should have interrupted your program,
>>> unless it masks signals.
>>
>> I see. When I find the time, I'll try diff-ing the code of gud-gdb and
>> of gdb-mi to find what magic the gud-gdb STOP button has, which makes it
>> have "a stronger interruption effect".
>> If I find anything, I'll report it here.
>
> I think the answer to that is clear from this:
>
> (defun gud-stop-subjob ()
> (interactive)
> (with-current-buffer gud-comint-buffer
> (cond ((string-equal gud-target-name "emacs")
> (comint-stop-subjob))
> ((eq gud-minor-mode 'jdb)
> (gud-call "suspend"))
> ((eq gud-minor-mode 'gdbmi)
> (gud-call (gdb-gud-context-command "-exec-interrupt")))
> (t
> (comint-interrupt-subjob)))))
>
> As you see i works differently depending on whether gdb-mi is used or
> not. What I don't understand is why -exec-interrupt doesn't do its
> job in your case.
It's isn't mysql-related. I create the simple a.cc:
int main()
{
long long int x;
for (x= 1; x; x++)
;
return 0;
}
I compile:
g++ -g a.cc
I open a.cc in emacs25, M-x gdb, "run"; it prints
(gdb) r
Starting program: /home/mysql_src/tmp/a.out
the long "for" loop is running, I press the STOP button, it prints
"command: -exec-interrupt", and the program apparently doesn't stop (as
there is no change at the prompt). To be sure about "doesn't stop", I
try with this program
#include <iostream>
#include <unistd.h>
int main()
{
long long int x;
for (x= 1; x; x++)
{
std::cout << x << std::endl;
sleep(1);
}
return 0;
}
And, likewise, the printouts continue, undisturbed by the click on STOP.
For what it's worth, the menu Signals->Break interrupts it and I
properly get:
Program received signal SIGINT, Interrupt.
0x0000000000400509 in main () at a.cc:4
4 for (x= 1; x; x++)
(gdb)
I'm using Ubuntu 15.10.
next prev parent reply other threads:[~2016-06-10 8:41 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-07 9:30 bug#23720: 25.0.94; Issues with GUD (gdb-mi) after upgrade from Emacs 23 to 24/25 Guilhem Bichot
2016-06-07 17:15 ` Eli Zaretskii
2016-06-07 18:54 ` Eli Zaretskii
2016-06-09 7:42 ` Guilhem Bichot
2016-06-10 9:00 ` Eli Zaretskii
2020-08-24 18:15 ` Lars Ingebrigtsen
2016-06-09 8:14 ` Guilhem Bichot
2016-06-09 12:17 ` Eli Zaretskii
2016-06-09 13:46 ` Guilhem Bichot
2016-06-09 14:12 ` Eli Zaretskii
2016-06-09 14:30 ` Guilhem Bichot
2016-06-09 14:36 ` Eli Zaretskii
2016-06-10 8:41 ` Guilhem Bichot [this message]
2016-06-10 9:52 ` Eli Zaretskii
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