Messages in this thread | | | Date | Tue, 21 Feb 2012 11:03:31 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH 30/30] x32: Add x32 VDSO support |
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On 02/21/2012 10:54 AM, Andrew Lutomirski wrote: > > uclibc hardcodes a call to the vsyscall gettimeofday implementation in > its locking primitives, which probably gives terrible performance, but > that's a separate issue. I think do_emulate_vsyscall should send a > segfault if called by an x32 task -- there's some security benefit to > doing so, and there's unlikely to be any downside. >
The vsyscall page shouldn't be mapped for x32 tasks...
-hpa
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