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Subject: |
M-x gdb ends up with infinite prompts before starting the process |
Date: |
Sun, 5 Mar 2023 03:13:35 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 |
1. Run compiled 'emacs' from 'src'.
2. M-x gdb
3. Answer prompt: Run gdb (like this): gdb -i=mi ./emacs
4. See this prompt repeated indefinitely, no matter what I answer:
This GDB supports auto-downloading debuginfo from the following URLs:
https://debuginfod.ubuntu.com
Enable debuginfod for this session? (y or [n]) Please answer y or [n].
(Emacs 29, more or less latest.)
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--- Begin Message ---
Subject: |
Re: bug#61973: M-x gdb ends up with infinite prompts before starting the process |
Date: |
Tue, 07 Mar 2023 14:49:02 +0200 |
> Date: Tue, 7 Mar 2023 00:48:59 +0200
> Cc: 61973@debbugs.gnu.org
> From: Dmitry Gutov <dgutov@yandex.ru>
>
> > Could you please try the patch below? I don't have access to a system
> > where GDB can actually download the files from debuginfod servers, so
> > I could test this only partially. Please test all the 3 possible
> > values of the new defcustom gdb-debuginfod-enable-setting. TIA.
>
> Looking good! Thank you.
Thanks, installed, and closing the bug.
> I have tries all 3 possible values, and the behavior looks as expected.
> With 't', I even see a small delay when launching the process,
> presumably from contacting some debuginfo server.
>
> I haven't been able to verify that the debuginfo stuff is actually
> working (nor sure where to look), but the basic functionality is now okay.
Apparently, if you do:
set debuginfo verbose 1
(probably in your ~/.gdbinit file or somesuch, so that it is set from
the beginning of the session), it is supposed to show you messages
about downloading. But this is documented to be 1 by default, so
maybe you don't see it because gdb-mi.el "swallows" those messages?
Try from the shell prompt and see if you get any messages. They are
supposed to begin with "Downloading". I think the download will only
happen if you debug a program whose sources and/or debug info are not
available locally.
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