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To: Ned Ludd <solar@g.o>
From: "Peter S. Mazinger" <ps.m@...>
Subject: Re: some uClibc experience
Date: Tue, 18 Nov 2003 14:45:59 +0100 (CET)
On 18 Nov 2003, Ned Ludd wrote:

> http://www.research.ibm.com/trl/projects/security/ssp/
I didn't meant the original one, the needed modifications to remove 
guard/smash from libgcc (the original one adds it to libgcc, but the 
changes of gentoo put it into glibc. Or should it be present in libc and 
libgcc?

Peter


> On Mon, 2003-11-17 at 13:37, Peter S. Mazinger wrote:
> > On 17 Nov 2003, Ned Ludd wrote:
> > 
> > > On Sun, 2003-11-16 at 19:46, Peter S. Mazinger wrote:
> > > > On 12 Nov 2003, Ned Ludd wrote:
> > > > 
> > > > > On Wed, 2003-11-12 at 16:31, Peter S. Mazinger wrote:
> > > > > > There are problems building some of the binaries with propolice enabled 
> > > > > > gcc, mainly the .hidden support in binutils has to be "hidden" from gcc, 
> > > > > > but as I can see (read), the glibc version does not work flawlessly 
> > > > > > either.
> > > > > > 
> > > > > Have you successfully used ssp with uclibc?
> > > > It worked (somehow, not quite correct, and some packages where not 
> > > > rebuildable) at the time where uClibc had support for LIBGCC_FUNCTIONS 
> > > > (adding functions from libgcc to libc) This was the only way I got a 
> > > > system running it (__guard and __smash... where added to libc). Since then 
> > > > I cannot modify buildroot so that I get a system running, segfaults on all 
> > > > the line (tested only with gcc-3.3.x and protector 3.3-5). I think the 
> > > > solution would be to add the needed functions to uClibc (and remove them 
> > > > from libgcc!!!).
> > > 
> > > One of the hardened-gcc version introduced guard symbols to libgcc.a.
> > > I'm pretty sure this no longer should be the case if your running ~arch
> > > as they are in fact getting introduced into glibc. 
> > > If you care to hack the functionaly into uClibc I'll point you at the
> > > glibc version from etoh http://dev.gentoo.org/~solar/ssp/guard.c
> > Where do I find the modified protector patch for gcc?
> > 
> > Peter
> 

-- 
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Key fingerprint = 92A4 31E1 56BC 3D5A 2D08  BB6E C389 975E A5F0 59F2


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Re: some uClibc experience
-- Ned Ludd
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Re: some uClibc experience
-- Ned Ludd
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Updated Jun 17, 2009

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