From owner-freebsd-arch@freebsd.org Thu Jun 9 17:41:54 2016 Return-Path: Delivered-To: freebsd-arch@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E5CBDB701A8 for ; Thu, 9 Jun 2016 17:41:54 +0000 (UTC) (envelope-from chmeeedalf@gmail.com) Received: from mail-it0-x230.google.com (mail-it0-x230.google.com [IPv6:2607:f8b0:4001:c0b::230]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id AF50E1D96 for ; Thu, 9 Jun 2016 17:41:54 +0000 (UTC) (envelope-from chmeeedalf@gmail.com) Received: by mail-it0-x230.google.com with SMTP id z189so160616008itg.0 for ; Thu, 09 Jun 2016 10:41:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:message-id:from:to:content-transfer-encoding:mime-version :subject:date; bh=clAIGd8GUl5xb9JA6dQ2FbnhQd+WXfibEw76BOQSg5s=; b=RJVBnBMAW3hI3jEXcsH+QIfMcLsGj4+ZAIg5dzLMVZ+7091CBzjUsPNrlsWew1ZkIK nnBLBcLRIzbCgMJQgiqpjrAatD0M0HKPGaRY+bPpxbjEzDDjK3LE5avykBr+jMQMTVji JidYvfc2IrlgEcJCQRaVLRTGIzFR/I9b21VPNgIEw0FlsE6z6ZI2qZhpe5jBwR8jPi1c mPYJm6itU4hERdbLBpQtEptDX4ZJ5lDDyBrFG3nPnavn+qhtoJ60BCHaQGfqBOf8u3Av TKrHOehLeK1Svwt9VzcgAwS790diTUwMy0s3v6IEXYJP5xdjCh72xLCXsXJpHrB8hQvh LL7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:message-id:from:to :content-transfer-encoding:mime-version:subject:date; bh=clAIGd8GUl5xb9JA6dQ2FbnhQd+WXfibEw76BOQSg5s=; b=mFhFNNNBAYAGOmXsz39E8zf0O+cXQjrtNf7wNwjP5vGMeextnItgf9V0BWwm9G8NP1 M9tuuTrmiVRIA4PW3fSnP5okIboLnLELsjyDpMMm5D6C2R0/Zk5w2V4tPJYDBfHd5LM4 S0mQaNE+NtZka/TGBrMCp9750r7SuNOa2khp+mjV21h1MlqYWWHoY9CJVP4k88vzFX+3 LqCdI8CuvmrNg1R7TUvzkJL/LAhGM/HKqzy19MUqzdeDAcSBML8vqKFbrPJ2JEmPiRW1 AKh7dSF/8lpLcGi78FQBD5wQBW9vpkvb70RW92+BAGlpS8sWPgIwCIEgZ0QgJVptitkQ MPDA== X-Gm-Message-State: ALyK8tLFTm1YTzAgDjfhEIDv4cFkbiNKsXtLyYmyBhT9gl10lg+qcfxUpC1968o1uEdF+w== X-Received: by 10.36.124.65 with SMTP id a62mr20116849itd.33.1465494114136; Thu, 09 Jun 2016 10:41:54 -0700 (PDT) Received: from [10.65.211.198] ([137.122.64.8]) by smtp.gmail.com with ESMTPSA id c65sm3686935iof.9.2016.06.09.10.41.53 for (version=TLS1 cipher=AES128-SHA bits=128/128); Thu, 09 Jun 2016 10:41:53 -0700 (PDT) Sender: Justin Hibbits Message-Id: <3FB65E20-0376-4041-86DE-F8CAB7F37314@freebsd.org> From: Justin Hibbits To: freebsd-arch@freebsd.org Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v936) Subject: PowerPC 64-bit time_t Date: Thu, 9 Jun 2016 13:41:52 -0400 X-Mailer: Apple Mail (2.936) X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Jun 2016 17:41:55 -0000 At the devsummit earlier today I mentioned for FreeBSD 12 wanting 64- bit time_t across the board. It was pointed out that the only ones with 32-bit time_t are i386 and powerpc (32-bit). I've made the changes necessary for at least kernel (world is still building right now), but it's obviously an ABI and KBI incompatible change. Addressing KBI is a nonissue, as that's expected to break at major releases. ABI is another issue. I'm unsure how to properly address ABI breakage -- bumping libc's .so version, or reversion all symbols that use something with time_t, or something else. If I can address it before the code freeze, it could be done for FreeBSD 11, which leaves about 6 hours from now. Any thoughts? - Justin