On Tue, Sep 20, 2016 at 09:16:00PM +0000, Niels Thykier wrote: > Over all, most people (who answered it) was positive towards the switch. > Based on this, I suspect that if we make PIE default in Stretch, then > we will do it for all architectures. That said, you will be notified if > that default changes for Stretch.
Is this just for ASLR, or is ther another motivating factor for PIE? AFAIK Address space randomizing is not really helpful on 32 bit architectures - there is just not that many places to randomize to[1]. At least previously, PIE added ~10% to binary size, which can have a major performance impact on the 32-bit arm core's that don't have much cache to begin with. Riku [1] https://cseweb.ucsd.edu/~hovav/dist/asrandom.pdf
