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Message-ID: <202011201144.3F2BB70C@keescook>
Date: Fri, 20 Nov 2020 11:47:21 -0800
From: Kees Cook <keescook@...omium.org>
To: Sami Tolvanen <samitolvanen@...gle.com>
Cc: Nick Desaulniers <ndesaulniers@...gle.com>,
Masahiro Yamada <masahiroy@...nel.org>,
Steven Rostedt <rostedt@...dmis.org>, Will Deacon <will@...nel.org>,
Josh Poimboeuf <jpoimboe@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"Paul E. McKenney" <paulmck@...nel.org>,
clang-built-linux <clang-built-linux@...glegroups.com>,
Kernel Hardening <kernel-hardening@...ts.openwall.com>,
linux-arch <linux-arch@...r.kernel.org>,
Linux ARM <linux-arm-kernel@...ts.infradead.org>,
Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>, linux-pci@...r.kernel.org
Subject: Re: [PATCH v7 02/17] kbuild: add support for Clang LTO
On Fri, Nov 20, 2020 at 08:23:11AM -0800, Sami Tolvanen wrote:
> Changing the ThinLTO config to a choice and moving it after the main
> LTO config sounds like a good idea to me. I'll see if I can change
> this in v8. Thanks!
Originally, I thought this might be a bit ugly once GCC LTO is added,
but this could be just a choice like we're done for the stack
initialization. Something like an "LTO" choice of NONE, CLANG_FULL,
CLANG_THIN, and in the future GCC, etc.
--
Kees Cook
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