From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Add FIXME comment re stack overflow and modules
Date: Mon, 21 Dec 2015 09:40:26 -0800 [thread overview]
Message-ID: <5678398A.7020409@cs.ucla.edu> (raw)
In-Reply-To: <83h9jbssx2.fsf@gnu.org>
Eli Zaretskii wrote:
> By "does not work" here, did you mean that using MODULE_FUNCTION_BEGIN
> will fail to catch the jump out of the SIGSEGV handler?
I did not analyze emacs-module.h and emacs-module.c carefully enough to find the
exact problem areas. Now that you mention it, I imagine the problem you mention
can occur, but I expect that there are other problems as well. For example, the
module code contains comments like "It is very important that pushing the
handler doesn't itself raise a signal" that suggest that the corresponding code
is incompatible with stack overflow checking.
next prev parent reply other threads:[~2015-12-21 17:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-21 15:49 Add FIXME comment re stack overflow and modules Eli Zaretskii
2015-12-21 17:40 ` Paul Eggert [this message]
2015-12-21 18:10 ` Eli Zaretskii
2015-12-21 18:29 ` Paul Eggert
2015-12-21 19:01 ` Eli Zaretskii
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