linux-kernel - Re: [RFC / musing] Scoped exception handling in Linux userspace?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 19 Jul 2013 07:43:40 +0200
From:	Tristan Gingold <gingold@...core.com>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	linux-kernel@...r.kernel.org, gcc@....gnu.org
Subject: Re: [RFC / musing] Scoped exception handling in Linux userspace?

On Jul 19, 2013, at 2:26 AM, Andy Lutomirski wrote:

> Windows has a feature that I've wanted on Linux forever: stack-based
> (i.e. scoped) exception handling.  The upshot is that you can do,
> roughly, this (pseudocode):

[...]

Indeed Windows and OpenVMS have such a mechanism. That's clean and
library friendly, but please read:
https://www.usenix.org/conference/wiess-2000/c-exception-handling-ia64
to understand how it hurts optimization.

(And no, raising an exception from an handler doesn't always work,
 due to optimizations allowed by the gcc exception mechanism).

Regards,
Tristan.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/