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Date: Tue, 18 Oct 2022 13:17:28 -0700 From: Joao Moreira <joao@...rdrivepizza.com> To: Peter Zijlstra <peterz@...radead.org> Cc: Kees Cook <keescook@...omium.org>, x86@...nel.org, Sami Tolvanen <samitolvanen@...gle.com>, linux-kernel@...r.kernel.org, Mark Rutland <mark.rutland@....com>, Josh Poimboeuf <jpoimboe@...hat.com> Subject: Re: [PATCH] x86/ibt: Implement FineIBT > >> Tangent: why are these nop instead of 0xcc? These bytes aren't >> executed >> ever are they? > > Because that's what the compiler gets us through > -fpatchable-function-entry. Is it useful to get the compiler to emit 0xcc with -fpatchable-function-entry under any circumstance? I can probably change that quickly if needed/useful.
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