Re: [gentoo-hardened] SSP + setjmp() = badness?

[Peter S. Mazinger]

On Mon, 31 Jul 2006, Ned Ludd wrote:

> On Mon, 2006-07-31 at 20:33 +0200, pageexec@××××××××.hu wrote:
> > On 31 Jul 2006 at 11:28, Ned Ludd wrote:
> > > gcc-4.x and hardened are not in the works..
> > > We are undecided at this time how much we wish to pursue that avenue.
> >
> > which part of hardened gcc is in question? i'd think that at least
> > PIE/RELRO/BIND_NOW are as easy to support as in 3.x.
>
> Yes these would be pretty trivial to do.
>
> > ssp may or may
> > not be a good idea given how new the 4.x series is, but as Mike said,
> > at least there's an eager upstream to fix any issues.

toolchain.eclass misses the needed support for gcc-4.1 like ssp

> I think the major problem we are facing here is how to cleanly upgrade
> from 3.x to 4.x. symbol names have changed. And using the stub/aliases
> method Peter used in uClibc svn allows the __guard to be overwritten.

How can __guard be overwritten, it is even marked with attribute_relro?

Peter

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Peter S. Mazinger <ps dot m at gmx dot net>           ID: 0xA5F059F2
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