From owner-freebsd-hackers@freebsd.org Fri Nov 18 20:20:47 2016 Return-Path: Delivered-To: freebsd-hackers@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 6FBBAC47AE5 for ; Fri, 18 Nov 2016 20:20:47 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mail-it0-x241.google.com (mail-it0-x241.google.com [IPv6:2607:f8b0:4001:c0b::241]) (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 39584CE7 for ; Fri, 18 Nov 2016 20:20:47 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by mail-it0-x241.google.com with SMTP id b123so6691783itb.2 for ; Fri, 18 Nov 2016 12:20:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=YMs5wF4JVnyCzAvZc7qnkZlNBZpXiNDhxwrHzvPBwko=; b=zOB+2VmFv5BUCZ3WjvErvkkYlBeOtnm82bC0Ob8JCY9jr1vxpFcVXMFvuHXJVA/wFD yRGxdnvRV4HLrsTF68W4TBrP7ZI7ukEZI8Qu/Ui/7VvOgx+q2jTCe2CcvKQEy7sYAcSG mjMV+iYNVxhVssipJ/AVaGE3KzrGB3GNaHD8KD0ZUQ06z4WfdAWSLcV6OAb+32o83t+f 3+IapKCmG6quK0QgsNOP6vLuDndpTdEB60AICgvN++fvlkIebPeV60/jyBGP1paX9oWM zyQ+DfAVWqC8b50MUrJHc9aeyNsYLp7Ojeikj5qBX0o172lxy5BeJ7JZ+LSL0nokyE/h Hfzw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=YMs5wF4JVnyCzAvZc7qnkZlNBZpXiNDhxwrHzvPBwko=; b=F8096sp4F4FxrMSzAADmfxVe5quj+txT5DUc19MFLGSyCScWnuHgOhYKdVO8mpjQCU ZCWLBSnQSlT3wih4/Z+S52vEgt6fbs/+1tDpK9XhbYPTF/73oHivGXPeNyHDGK1+YWd4 FhVDRwNtbDH10h0lWL3BvGOhGfKulWTslcEO6HjFqbvkP+jFo6zOM4acdUAZ0uQVEvuw JDoBuTMkO/07WfRNQflZ9ymJbupqoPf8JVi16eb2XXdj4Z0yrrE8XDf/pKCfwMD4+02Z PyKKmJtiXFEDVehD2Sc6v1fo4Mmf4YM87jdoAwRt8BDzOUYCslTwUdT7DutGLzS5rwuQ ELlQ== X-Gm-Message-State: AKaTC02VEAqVnAcimrEGdGPmf8pbHDz9n1R9ek8zc/wL63roHkatScBvT9rzqyioThiA8VjFu4IdUJjlKAR/YQ== X-Received: by 10.107.19.164 with SMTP id 36mr1603452iot.155.1479500446675; Fri, 18 Nov 2016 12:20:46 -0800 (PST) MIME-Version: 1.0 Sender: carpeddiem@gmail.com Received: by 10.107.27.212 with HTTP; Fri, 18 Nov 2016 12:20:26 -0800 (PST) In-Reply-To: <5ec481c4-41e1-c7dd-433d-f533653b132f@cs.ucla.edu> References: <82a03552-8f33-2dbe-6bb5-54f649b29db7@cs.ucla.edu> <86vavxs2cn.fsf@members.fsf.org> <5adee8d9-8f08-9536-a95f-ae64719d6a0f@cs.ucla.edu> <40f8df50-b431-1ebd-221c-df2aa453aa81@cs.ucla.edu> <06ee71fd-1a64-d32b-862e-c725807aef4e@cs.ucla.edu> <876cf047-82fb-f08c-bbb3-024206f6fabd@cs.ucla.edu> <83twb6dnkm.fsf@gnu.org> <8637ipm0nb.fsf@lostca.se> <5ec481c4-41e1-c7dd-433d-f533653b132f@cs.ucla.edu> From: Ed Maste Date: Fri, 18 Nov 2016 15:20:26 -0500 X-Google-Sender-Auth: xetLFq1nfpUkDCnuQsJf4XMJV5M Message-ID: Subject: Re: bug#24892: {s, }brk removed from FreeBSD 11.x and later, arm64 architecture To: Paul Eggert Cc: Ashish SHUKLA , "freebsd-hackers@freebsd.org" , 24892@debbugs.gnu.org Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Nov 2016 20:20:47 -0000 On 18 November 2016 at 11:21, Paul Eggert wrote: > > In the meantime we respectfully request that sbrk functionality be kept in > FreeBSD 11.x arm64 for a while. It is fine to mark it as deprecated or > obsolete, or even rename it, but please do not remove the functionality > entirely. Hi Paul, I want to clarify one point: arm64 support was first available in a release in FreeBSD 11.0, without sbrk, and sbrk never existed on the stable/11 branch. It's important for us that emacs works on FreeBSD (including FreeBSD/arm64) and there are folks willing to help make that happen. I had a quick look at emacs' source, and it seems there's an implementation that allocates memory out of a large array in .bss used for some platforms - could we make use of that here?