bug#51688: ELC+ELN international/emoji.elc crashes

[Andrea Corallo]

Robert Pluim <rpluim@gmail.com> writes:

>>>>>> On Tue, 23 Nov 2021 14:34:45 +0000, Andrea Corallo <akrl@sdf.org> said:
>
>     Andrea> Robert Pluim <rpluim@gmail.com> writes:
>     >>>>>>> On Tue, 23 Nov 2021 14:42:11 +0200, Eli Zaretskii <eliz@gnu.org> 
> said:
>     >> 
>     >> >> From: Robert Pluim <rpluim@gmail.com>
>     >> >> Cc: 51688@debbugs.gnu.org,  Andreas Schwab <schwab@linux-m68k.org>, 
> Eli
>     >> >> Zaretskii <eliz@gnu.org>
>     >> >> Date: Tue, 23 Nov 2021 09:44:01 +0100
>     >> >> 
>     >> >> >>>>> On Mon, 22 Nov 2021 15:55:57 +0100, Robert Pluim 
> <rpluim@gmail.com> said:
>     >> >> 
>     Robert> Iʼve seen this crash *once* in my Tumbleweed VM, which 
> unfortunately
>     Robert> had core dumps disabled. Iʼve not seen it since enabling core
>     Robert> dumps. Iʼll see what happens if I uses Andreas' configure options.
>     >> >> 
>     >> >> So this only seems to happen in a clean checkout, and I suspect I 
> need
>     >> >> to remove ~/.emacs.d/eln-cache as well.
>     >> 
>     Eli> Can you produce a reproducer and post it?  See etc/DEBUG for how to 
> do
>     Eli> that.
>     >> 
>     >> Attached (itʼs rather large). Note that running 'NATIVE_FULL_AOT=1
>     >> make' again, lisp/international/emoji.el is successfully compiled, so
>     >> Iʼm not 100% sure that the repro file will cause a crash.
>     >> 
>
>     Andrea> Could you verify if you can produce the libgccjit crash using the
>     Andrea> produced reproducer?
>
>     Andrea> You should just compile it with like
>
>     Andrea> $ gcc emoji-aca2d225-0997194d_libgccjit_repro.c -lgccjit
>
>     Andrea> And run it to see if it crashes.
>
>     Andrea> $ ./a.out
>
> No, that doesnʼt crash. And similarly for the .c files in
> .emacs.d/eln-cache, they donʼt crash.

To be sure, was the .c file produced when Emacs crashed?

Thanks

  Andrea