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To: Ned Ludd <solar@g.o>
From: "Peter S. Mazinger" <ps.m@...>
Subject: Re: some uClibc experience
Date: Mon, 17 Nov 2003 19:37:02 +0100 (CET)
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

-- 
Peter S. Mazinger <ps.m@...>   ID: 0xA5F059F2    NIC: IXUYHSKQLI
Key fingerprint = 92A4 31E1 56BC 3D5A 2D08  BB6E C389 975E A5F0 59F2


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Updated Jun 17, 2009

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