From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25847 invoked by alias); 20 May 2019 23:13:33 -0000 Mailing-List: contact libffi-discuss-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libffi-discuss-owner@sourceware.org Received: (qmail 25839 invoked by uid 89); 20 May 2019 23:13:32 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=4.6 required=5.0 tests=AWL,BAYES_05,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.1 spammy=HTo:U*libffi-discuss, devices, signs, H*r:sk:libffi- X-HELO: mail-vk1-f182.google.com Received: from mail-vk1-f182.google.com (HELO mail-vk1-f182.google.com) (209.85.221.182) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 20 May 2019 23:13:31 +0000 Received: by mail-vk1-f182.google.com with SMTP id h72so4322235vkh.10 for ; Mon, 20 May 2019 16:13:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:reply-to:to:from:date:message-id:subject; bh=P2c5aHWtLygaKmySCes445B+He0U6YFrZxvQwX6HmzE=; b=YjpA73wQ9z0OH1fvVD0akEQhPDjO6S0JAaV2aNjpHr8jTiRPSXnhW6Fi5IzS9nwdnO cebLw5M92x731u3q4cb1nF0Wf7QPczqDii6HIUkS3Qes0Jx5lz54nc3gwFkG7z/w4h7w JYgvqJwnIH6lGuoLKZ6EW0EWXYH3fvHhaJRp+oO2kvp2ySGDBVcjpYTDIgXtn6Onn3Ai O4CTnVF8AZaKc6n5gLlgAzu2xSEl+V5eW9SivIXNyZbxhCMSgM3fqnRPZf/EVvLGpsBT QCIPQsYQ2d+RKZexzmrjpK1qh0ni9XK6e3wKwBsiw5SmCO+imQfgIUFKDHrFVkQiF2D7 +a3Q== Return-Path: Received: from localhost (0.92.231.35.bc.googleusercontent.com. [35.231.92.0]) by smtp.gmail.com with ESMTPSA id o66sm6834738vke.17.2019.05.20.16.13.29 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 20 May 2019 16:13:29 -0700 (PDT) Mime-Version: 1.0 Reply-To: rweichler@gmail.com X-Superhuman-Thread-ID: draft005763032c7d880b To: libffi-discuss@sourceware.org X-Superhuman-Draft-ID: draft000aa620681c85e1 From: "Reed Weichler" Date: Mon, 20 May 2019 23:13:00 -0000 Message-ID: Subject: Is arm64e supported? X-Superhuman-ID: jvwzjkzg.252ea4e8-68ef-4e62-9880-59fab514e37d Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-SW-Source: 2019/txt/msg00005.txt.bz2 Hi. I was wondering if arm64e was supported. And if not, are there plans fo= r supporting it? For the uninitiated, arm64e is the new architecture shipped with the iPhone= XS and iPhone Xr. https://community.arm.com/developer/ip-products/processors/b/processors-ip-= blog/posts/armv8-a-architecture-2016-additions https://developer.apple.com/documentation/security/preparing_your_app_to_wo= rk_with_pointer_authentication tl;dr is it signs the high-order bits of pointers for security. Code compil= ed for Apple arm64 does not run on arm64e devices.