[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Add FIXME comment re stack overflow and modules

From: Paul Eggert
Subject: Re: Add FIXME comment re stack overflow and modules
Date: Mon, 21 Dec 2015 09:40:26 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0

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.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]