From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f173.google.com (mail-pl1-f173.google.com [209.85.214.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 41BE733FA for ; Fri, 10 Feb 2023 16:14:29 +0000 (UTC) Received: by mail-pl1-f173.google.com with SMTP id b5so6966370plz.5 for ; Fri, 10 Feb 2023 08:14:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=user-agent:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=XLSb4oI7+G/vrSC0uBHgAIzrNQ2OQDigOg7jJ9N0vsg=; b=PCPKWUiaCusJdtCnECjumkp3J1QvA96YuTv4FJeFmqch8ud9Ii1ettciB81E6lmxzM ojwbJHWAygEfNd6w0P6ZsUJAubVYEOs26iO6TxuOgvL32qs0t9jkmKfoMSza9drYHX8x UFPZ7dTgd7iPZey2976DHnac0YGp0YxcroCQDglPkZ4yQh2SkjDr5AgfRs5mLjxHVhD8 uv/PbxLh9NRocXRsPcut3fJ1I3akWLndIeS392QoS5f7noQpMgleq/gOAgHuMLND/72J M8bjq7qDCYjFiqx6zRhz7mJPr5lXINJVZ1N+uIvDonwqgR4TaXio8FAhxjmKH23KLHvu LWPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=user-agent:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=XLSb4oI7+G/vrSC0uBHgAIzrNQ2OQDigOg7jJ9N0vsg=; b=69l98npdZBh9QvleRXuAsEo/BYDyJkhXGebYMi0Lf6TNyqRamm9U9CBLqK5sCetSRJ r4RTjxFSGXEMquFinNfuq/hOjobb9xSFnvPliAMll80EbP+Va1RluFDXuJCoKzMMSnFy ge2tIuhh0xLwkqckKBBGmZWIhDmW6fVtska/cJpJVmjWhyxjAv7rSm+SGTg4WdFtWLgs MYXF2WkxwRHar4W3vwYR8RnmefapqDssu6mswdj7upOiOA+Q70bep+aeFMC/8iiNPuSN 3s5Fc4bTRXwqHHflfOs2EWAbcWoEZA6IpGkkDyiFF+X5l5XH4wl181mI/7eAE2ulm+oz vwBA== X-Gm-Message-State: AO0yUKU4hX24YJFTj8MWGZmJmkBK7qlLR7J/7xYEUFDwyS6C6w11IKSr C1DpZ/hqn0ooPgNFYlTCYOU= X-Google-Smtp-Source: AK7set9p9yRN0uGRPX49Nz2FWepxAbly3CMmVUioeLM705OspCHjKCSUUpUpjuwRsqWhbSyuJdCL8w== X-Received: by 2002:a17:902:d2d0:b0:198:a338:b9c5 with SMTP id n16-20020a170902d2d000b00198a338b9c5mr19125012plc.2.1676045668657; Fri, 10 Feb 2023 08:14:28 -0800 (PST) Received: from localhost ([124.248.219.206]) by smtp.gmail.com with ESMTPSA id w14-20020a170902a70e00b0018997f6fc88sm3590399plq.34.2023.02.10.08.14.27 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 10 Feb 2023 08:14:28 -0800 (PST) Date: Fri, 10 Feb 2023 08:14:15 -0800 From: Dan Li To: Kees Cook Cc: concord@gentoo.org, linux-hardening@vger.kernel.org, Peter Zijlstra , Masahiro Yamada , Michal Marek , Nick Desaulniers , Catalin Marinas , Will Deacon , Sami Tolvanen , Nathan Chancellor , Tom Rix , Mark Rutland , Josh Poimboeuf , Qing Zhao , "Paul E. McKenney" , Frederic Weisbecker , "Eric W. Biederman" , Marco Elver , Christophe Leroy , Song Liu , Andrew Morton , Uros Bizjak , Kumar Kartikeya Dwivedi , Juergen Gross , Luis Chamberlain , Borislav Petkov , Masami Hiramatsu , Dmitry Torokhov , Aaron Tomlin , Kalesh Singh , Yuntao Wang , Changbin Du , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev Subject: Re: [RFC/RFT] CFI: Add support for gcc CFI in aarch64 Message-ID: <20230210161415.mktok5dt5fiqmqss@ubuntu> References: <20221219061758.23321-1-ashimida.1990@gmail.com> <20221219132731.6ng4sz2nv6ujvu7i@ubuntu> <202301061929.6881F6CD40@keescook> <20230107154213.ocyghxd2k66gbvv6@ubuntu> <63e3f989.170a0220.60c91.c5ce@mx.google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <63e3f989.170a0220.60c91.c5ce@mx.google.com> User-Agent: NeoMutt/20171215 On 02/08, Kees Cook wrote: > On Sat, Jan 07, 2023 at 07:42:13AM -0800, Dan Li wrote: > > Hi Kees, > > > > In the next version I'll make the gcc implementation consistent with clang. > > Hi! > > Just checking in on this, since there are a lot of interested folks. :) > What's the status on the next version (and has anyone been found to > tackle the x86 backend part)? Is there anything we can help with? > Hi Kees, Sorry for the long delay. It's been hard for me to find time to finish this until the end of February due to job changes (even weekends are busy :( ). As much as I'd love to get it done as soon as possible, I'm sorry I probably won't be able to submit the next version until March (maybe mid). If anyone could help improve this, I'd be very grateful, otherwise I'll have the next version done by the end of March (as a promise), and also try it in x86 platform. Sincerely apologize! Dan. > Thanks! > > -Kees > > -- > Kees Cook