Thanks, Tino.

I've finally managed to get gdb to work by executing the following two
instructions at the gdb command prompt:

(gdb) cd ~/emacs
(gdb) file src/bootstrap-emacs

However, your suggestion to execute the following from the terminal, didn't
work:

> emacs ~/emacs/src

Is there a way to configure gdb to use the above settings (cd and file)
automatically?

On Fri, Aug 11, 2017 at 2:46 PM, Tino Calancha <tino.calancha@gmail.com>
wrote:

>
>
> On Fri, 11 Aug 2017, Itai Berli wrote:
>
> However, now I get the
>> following complaint from gdb:
>>
>> > No executable file specified.
>> > Use the "file" or "exec-file" command.
>>
> That means, gdb doesn't know which program to debug.
>
> Here's the complete contents of the *gud* buffer.
>>
>
> Current directory is ~/
>> No symbol table is loaded.  Use the "file" command.
>> Make breakpoint pending on future shared library load? (y or [n]) y
>> Breakpoint 1 (main) pending.
>> (gdb) r
>> Starting program:
>> No executable file specified.
>> Use the "file" or "exec-file" command.
>>
> Assuming your executable is at:
> ~/emacs/src/bootstrap-emacs
> you can do in the gdb command line:
> file ~/emacs/src/bootstrap-emacs
>
> On Fri, Aug 11, 2017 at 12:59 PM, Itai Berli <itai.berli@gmail.com> wrote:
>>       By the way, the *gud* buffer's first line is
>> > Current directory is ~/
>>
>> However, the Emacs source code is in ~/emacs. Maybe this is the problem?
>> But I started Emacs from ~/emacs. How can I set
>> the *gud* buffer's current directory?
>>
> DUNNO why it doesn't starts at ~/emacs.
> You can try from a terminal:
> |> emacs ~/emacs/src
> ;; now call gdb
> M-x gdb RET ; it should offer to debug 'bootstrap-emacs'