linux-kernel - Re: [PATCH 0/2] x86: Remove ideal

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CA+icZUWTSo2vkQO_tRggDFvvF_Q6AdzhvhQvmAsNxKnpGXHi0Q@mail.gmail.com>
Date:   Sat, 13 Mar 2021 14:47:54 +0100
From:   Sedat Dilek <sedat.dilek@...il.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Peter Zijlstra <peterz@...radead.org>, x86@...nel.org,
        rostedt@...dmis.org, hpa@...or.com, torvalds@...uxfoundation.org,
        linux-kernel@...r.kernel.org, linux-toolchains@...r.kernel.org,
        jpoimboe@...hat.com, alexei.starovoitov@...il.com,
        mhiramat@...nel.org
Subject: Re: [PATCH 0/2] x86: Remove ideal_nops[]

On Sat, Mar 13, 2021 at 2:29 PM Borislav Petkov <bp@...en8.de> wrote:
>
> On Sat, Mar 13, 2021 at 01:58:56PM +0100, Sedat Dilek wrote:
> > You can add Debian/experimental APT sources.list ...
>
> I could but I don't expect clang12 to behave any differently here.
>

Agreed in things of build-time.
There were some improvements and optimizations to LLVM/Clang but twice
as slow is really hard compared with GCC.

I was thinking more in the direction of "compatibility" of tip tree
with recent LLVM/Clang other than what is officially supported via
Kbuild-system.

Let me look if I will do a selfmade ThinLTO+PGO optimized LLVM
toolchain v12.0.0-rc3 this weekend.

- Sedat -