Messages in this thread | | | Date | Thu, 01 Jan 2015 23:53:17 -0800 | From | Dave Hansen <> | Subject | Re: [PATCH 3.19 3/3] x86, mpx: Change the MPX enable/disable API to arch_prctl |
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On 12/29/2014 04:52 PM, Andy Lutomirski wrote: > This has the benefit the it avoids cluttering prctl with more > arch-specific functionality. The down side is that arch_prctl will > need to be wired up as a 32-bit syscall to add 32-bit support for > MPX.
There is existing userspace out there which depends on the existing prctl() setup. There isn't a _lot_ and it might still be able to be changed easily, but this isn't a given.
I'll check in with the folks doing the gcc (runtime) part of this next week and see what they think.
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