A RetroSearch Logo

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Search Query:

Showing content from https://lists.gnu.org/archive/html/emacs-devel/2022-11/msg01359.html below:

Re: scratch/comp-static-data 5aa3db2f11: comp: Add support for compiling

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] From: Stefan Monnier Subject: Re: scratch/comp-static-data 5aa3db2f11: comp: Add support for compiling elisp constants into static data. Date: Sun, 20 Nov 2022 13:47:55 -0500 User-agent: Gnus/5.13 (Gnus v5.13) 
> The follow elisp snipper is an example of code that when compiled under
> this branch, crashes Emacs:
> ;; -*- lexical-binding: t; -*-
> (defun fault-function ()
>   (let ((a [1 2 3]))
>     (aset a 0 5)
>     a))

I'm not deluded enough to think it's currently impossible to crash Emacs
with a well-crafted piece of ELisp code, but we do aim for that, so this
would be a significant step backwards :-(

Can we change your patch so that it makes the section writable rather
than ".rodata"?

Otherwise, we'd have to adjust the PURE_P tests so as to turn those
crashes into mere errors (I guess we could also try and use some kind of
SEGV signal handler for that purpose, but IIUC it can be tricky to do it
reliably/portably).


        Stefan

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4