From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Pip Cet <pipcet@protonmail.com>
Cc: "Gerd Möllmann" <gerd.moellmann@gmail.com>,
spd@toadstyle.org, "Eli Zaretskii" <eliz@gnu.org>,
acorallo@gnu.org, 74966@debbugs.gnu.org
Subject: bug#74966: 31.0.50; Crash report (using igc on macOS)
Date: Sat, 21 Dec 2024 09:26:24 -0500 [thread overview]
Message-ID: <jwvldw9glm8.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87r062jpi1.fsf@protonmail.com> (Pip Cet's message of "Fri, 20 Dec 2024 16:20:32 +0000")
>> `offset` here should be fixnum that gives the position of this docstring
>> in the DOC file. And FUN should be a function for which we found
>
> Yes, but the nativecomp code assumes ->doc is an index into a
> nativecomp'd subr's constant vector.
Aha!
> So we overwrite it with a docfile
> index, access an out-of-bounds index and crash.
>
> I think the best thing to do is to use separate fields for the "offset"
> doc and the "index" doc; or at least, the second best thing, after
> removing the entire docfile hack.
I think a much simpler change is to use the sign bit to distinguish indices
into the constant vector from indices into the DOC file.
Stefan
next prev parent reply other threads:[~2024-12-21 14:26 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-19 9:17 bug#74966: 31.0.50; Crash report (using igc on macOS) Sean Devlin
[not found] ` <handler.74966.B.173459989517154.ack@debbugs.gnu.org>
2024-12-19 9:21 ` bug#74966: Acknowledgement (31.0.50; Crash report (using igc on macOS)) Sean Devlin
2024-12-19 10:28 ` Gerd Möllmann
2024-12-19 11:05 ` Sean Devlin
2024-12-19 11:30 ` Gerd Möllmann
2024-12-19 10:25 ` bug#74966: 31.0.50; Crash report (using igc on macOS) Gerd Möllmann
2024-12-19 11:57 ` Sean Devlin
2024-12-19 11:48 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-19 11:54 ` Sean Devlin
2024-12-19 14:02 ` Gerd Möllmann
2024-12-19 14:07 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-19 14:44 ` Gerd Möllmann
2024-12-19 15:25 ` Gerd Möllmann
2024-12-19 19:21 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-19 19:46 ` Gerd Möllmann
2024-12-20 7:00 ` Gerd Möllmann
2024-12-20 7:11 ` Gerd Möllmann
2024-12-20 7:30 ` Gerd Möllmann
2024-12-20 7:38 ` Gerd Möllmann
2024-12-20 7:44 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-20 8:12 ` Eli Zaretskii
2024-12-20 8:21 ` Gerd Möllmann
2024-12-20 8:35 ` Eli Zaretskii
2024-12-20 8:43 ` Gerd Möllmann
2024-12-20 8:57 ` Gerd Möllmann
2024-12-20 16:17 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-20 16:20 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-21 14:26 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2024-12-21 14:57 ` Gerd Möllmann
2024-12-21 15:18 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-21 16:15 ` Eli Zaretskii
2024-12-20 16:40 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-20 17:17 ` Gerd Möllmann
2024-12-20 19:40 ` Eli Zaretskii
2024-12-20 20:50 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-20 21:07 ` Gerd Möllmann
2024-12-21 7:09 ` Eli Zaretskii
2024-12-21 7:12 ` Gerd Möllmann
2024-12-21 6:47 ` Eli Zaretskii
2024-12-21 7:08 ` Gerd Möllmann
2024-12-21 7:51 ` Eli Zaretskii
2024-12-21 8:07 ` Gerd Möllmann
2024-12-21 10:09 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-21 10:31 ` Gerd Möllmann
2024-12-21 12:28 ` Eli Zaretskii
2024-12-21 13:26 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-21 14:12 ` Gerd Möllmann
2024-12-21 16:07 ` Eli Zaretskii
2024-12-21 17:35 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-21 18:15 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-20 8:04 ` Eli Zaretskii
2024-12-20 6:34 ` Eli Zaretskii
2024-12-19 15:31 ` Pip Cet via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-19 15:42 ` Gerd Möllmann
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