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Re: [PATCH] Add Prefer_MAP_32BIT_EXEC for Silvermont
- From: Andi Kleen <andi at firstfloor dot org>
- To: Zack Weinberg <zackw at panix dot com>
- Cc: "H.J. Lu" <hjl dot tools at gmail dot com>, Andi Kleen <andi at firstfloor dot org>, Adhemerval Zanella <adhemerval dot zanella at linaro dot org>, GNU C Library <libc-alpha at sourceware dot org>
- Date: Fri, 11 Dec 2015 23:29:13 +0100
- Subject: Re: [PATCH] Add Prefer_MAP_32BIT_EXEC for Silvermont
- Authentication-results: sourceware.org; auth=none
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> You can opt in in your development environment; equally you can switch
> ASLR off altogether.
>
> The "realistic workloads" I care about are long-lived network clients
> and servers -- you know, the things for which ASLR is relevant as a
> security measure.
They can opt in. Slow security features such as compiler stack overflow checking
are usually opt-in, not opt-out. This is certainly in the same ballpark,
in some cases likely higher.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.