Gentoo Archives: gentoo-amd64

From: "Hemmann
To: gentoo-amd64@l.g.o
Subject: Re: [gentoo-amd64] Questions about No Execute and security
Date: Thu, 06 Oct 2005 21:11:57
Message-Id: 200510062309.52928.volker.armin.hemmann@tu-clausthal.de
In Reply to: Re: [gentoo-amd64] Questions about No Execute and security by Marco Matthies
1 On Thursday 06 October 2005 22:40, Marco Matthies wrote:
2 > Hemmann, Volker Armin wrote:
3 > > and I get:
4 > >
5 > > strace gzip > /dev/null
6 > > execve("/bin/gzip", ["gzip"], [/* 63 vars */]) = 0
7 > > <snip>
8 > > open("/lib/tls/libc.so.6", O_RDONLY) = 3
9 > > <snip>
10 > > mmap(NULL, 2261000, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0)
11 > > = 0x2aaaaabc3000
12 > > <snip>
13 >
14 > Thanks for the reply. So it seems you were right about Gentoo's
15 > versatility also showing in different addresses used for loading glibc.
16 > From your output i'm guessing you are using the linuxthreads-tls USE
17 > flag for glibc and this does seem to cause a different address for
18 > glibc. Is this the case or do you know what causes these differences?
19
20 I just set 'ntpl' in my make.conf ;)
21
22 And no, I don't know anything about libraries and their address-space.
23 --
24 gentoo-amd64@g.o mailing list

Replies

Subject Author
Re: [gentoo-amd64] Questions about No Execute and security Marco Matthies <marco-ml@×××.net>