Re: [RFC PATCH 5/5] selftest/x86: Add CET quick test
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From: Yu-cheng Yu <hidden>
Date: 2020-05-22 18:08:55
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linux-arch, linux-doc, linux-mm, lkml
On Fri, 2020-05-22 at 10:36 -0700, Kees Cook wrote:
On Fri, May 22, 2020 at 07:27:11PM +0200, Peter Zijlstra wrote:quoted
On Fri, May 22, 2020 at 10:22:51AM -0700, Kees Cook wrote:quoted
But yes, I think getting a copy of asm.h would be nice here. I don't think the WRITE_ONCE() is needed in this particular case. Hmm.Paranoia on my end because I had no clue wth he wanted with his -O0 magic gunk.Heh, yes, which is why I asked for many more comments. ;) I *think* it was entirely to control the stack (and ssp) behavior (i.e. don't inline, don't elide unused stack variables, etc).
Yes, that was the reason. Yu-cheng