Gentoo Archives: gentoo-security

From: Armando Di Cianno <adicianno@×××××××××.com>
To: gentoo-security@l.g.o, discuss-gnustep@×××.org
Subject: [gentoo-security] pax and objc
Date: Wed, 23 Jun 2004 21:33:11
Message-Id: 369f712b627d28c03b1cad8698a68b21@mudra
1 Hello all, I have a quick question about something I'm kind of in the
2 dark about.
3
4 Back story: I'm trying to revitalize GNUstep on Gentoo. Worked on
5 ebuilds/structure for a week or two, submitted something like 16
6 yesterday. Getting good feedback.
7
8 One piece of feedback was that Objective-C doesn't play well with pax.
9 I'm not exactly sure what pax is. So, if anyone knows:
10 - What is the nature of the problem between pax and Objective-C? (I'm
11 assuming it's going to have something to do with the library or the
12 runtime, and whatever protection PAX is supposed to offer for
13 stack/heap breakage.)
14 - The problem is between Objective-C support itself and PAX, yes?
15 gnustep-base offers support for libffi which doesn't use mprotect like
16 ffcall, which I understand to be a problem. (I'm uploading the newest
17 libffi that will work with gnustep-base to bugs.gentoo right now as
18 well). I wasn't sure if some were mixing "GNUstep" and "objc" in this
19 context.
20
21 Any information on this issue would be greatly appreciated. I'd
22 really like GNUstep on Gentoo to be as solid as it can feasibly be.
23
24 __Armando Di Cianno
25
26
27 --
28 gentoo-security@g.o mailing list