bug#10285: gdb-mi should accept some process I/O before GDB actually starts

[Lars Ingebrigtsen]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>>> Presumably now that you know you need to add the magic argument, you are
>>> able to fix the command to make your gdb+sudo case work, right?
>> No, because sudo runs before gdb and prompts for your password, which
>> it never gets, so gdb never runs and spits out whatever Emacs is
>> waiting to see.
>
> Ah, and indeed the code in the pretest won't help.
> We need further changes to gdb-mi.el to accommodate your use case, but
> those changes would be too intrusive to add at this stage, so it'll have
> to wait for after 24.1.

I tried reproducing this in Emacs 28, but the instructions were
unclear.  What command is issued after saying `M-x gdb'?

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   bloggy blog: http://lars.ingebrigtsen.no