On Mon, Aug 7, 2017 at 11:59 AM, Kees Cook <keescook@google.com> wrote:

> On Mon, Aug 7, 2017 at 11:56 AM, Kostya Serebryany <kcc@google.com> wrote:
> > Is it possible to implement some userspace<=>kernel interface that will
> > allow applications (sanitizers)
> > to request *fixed* address ranges from the kernel at startup (so that the
> > kernel couldn't refuse)?
>
> Wouldn't building non-PIE accomplish this?
>

Well, many asan users do need PIE.
Then, non-PIE only applies to the main executable, all DSOs are still
PIC and the old change that moved DSOs from 0x7fff to 0x5555 caused us
quite a bit of trouble too, even w/o PIE


>
> -Kees
>
> --
> Kees Cook
> Pixel Security
>