Re: Bits from dpkg developers - dpkg 1.16.1
On Wed, Sep 28, 2011 at 10:52:15PM +0300, Riku Voipio wrote:
> On Tue, Sep 27, 2011 at 06:01:54PM -0700, Kees Cook wrote:
> > Just to be explicit, PIE tends to have small (<1%) performance hits on
> > register-starved architectures (i386) in most cases, for for certain work
> > loads (e.g. python) the hit is large (~15%). On architectures with plenty
> > of registers (amd64) there's virtually no measurable performance hit that
> > I've seen.
> > If your package handles 3rd party data of any kind (renders, network
> > daemons, file parsers, etc), I strongly recommend enabling PIE.
> However, on 32bit architectures address space randomizing (which is why
> people try sell PIE as a security feature) does not add much security.
Also note that as long as you can read memory in the process and have
access to /proc/self/auxv, you can find the base address of all