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Date: Mon, 13 Feb 2023 09:39:12 +0800 From: Hongtao Liu <crazylht@...il.com> To: Dan Li <ashimida.1990@...il.com> Cc: gcc-patches@....gnu.org, Richard Sandiford <richard.sandiford@....com>, Masahiro Yamada <masahiroy@...nel.org>, Michal Marek <michal.lkml@...kovi.net>, Nick Desaulniers <ndesaulniers@...gle.com>, Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, Sami Tolvanen <samitolvanen@...gle.com>, Kees Cook <keescook@...omium.org>, Nathan Chancellor <nathan@...nel.org>, Tom Rix <trix@...hat.com>, Peter Zijlstra <peterz@...radead.org>, "Paul E. McKenney" <paulmck@...nel.org>, Mark Rutland <mark.rutland@....com>, Josh Poimboeuf <jpoimboe@...nel.org>, Frederic Weisbecker <frederic@...nel.org>, "Eric W. Biederman" <ebiederm@...ssion.com>, Marco Elver <elver@...gle.com>, Christophe Leroy <christophe.leroy@...roup.eu>, Song Liu <song@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>, Uros Bizjak <ubizjak@...il.com>, Kumar Kartikeya Dwivedi <memxor@...il.com>, Juergen Gross <jgross@...e.com>, Luis Chamberlain <mcgrof@...nel.org>, Borislav Petkov <bp@...e.de>, Masami Hiramatsu <mhiramat@...nel.org>, Dmitry Torokhov <dmitry.torokhov@...il.com>, Aaron Tomlin <atomlin@...hat.com>, Kalesh Singh <kaleshsingh@...gle.com>, Yuntao Wang <ytcoode@...il.com>, Changbin Du <changbin.du@...el.com>, linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, llvm@...ts.linux.dev, linux-hardening@...r.kernel.org Subject: Re: [RFC/RFT 0/3] Add compiler support for Control Flow Integrity On Sat, Feb 11, 2023 at 12:18 AM Dan Li <ashimida.1990@...il.com> wrote: > > On 02/09, Hongtao Liu wrote: > > On Mon, Dec 19, 2022 at 3:59 PM Dan Li via Gcc-patches > > <gcc-patches@....gnu.org> wrote: > > > > > > This series of patches is mainly used to support the control flow > > > integrity protection of the linux kernel [1], which is similar to > > > -fsanitize=kcfi in clang 16.0 [2,3]. > > > > > > I hope that this feature will also support user-mode CFI in the > > > future (at least for developers who can recompile the runtime), > > > so I use -fsanitize=cfi as a compilation option here. > > > > > > Any suggestion please let me know :). > > Do you have this series as a branch somewhere that we could also try for x86? > > Hi Hongtao, > > I haven't tried this feature on the x86 platform, if possible, I will try it in > the next version. Thanks. > > Thanks, > Dan. > > > -- > > BR, > > Hongtao -- BR, Hongtao
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