From owner-freebsd-current@freebsd.org Mon Sep 10 14:56:36 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D62B61092005 for ; Mon, 10 Sep 2018 14:56:36 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mail-io0-x236.google.com (mail-io0-x236.google.com [IPv6:2607:f8b0:4001:c06::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 6DD6984B5A for ; Mon, 10 Sep 2018 14:56:36 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by mail-io0-x236.google.com with SMTP id y12-v6so839516ioj.13 for ; Mon, 10 Sep 2018 07:56:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:from:date:message-id:subject:to; bh=0Zxu7UMCBX4wzTu2ijtJxPqkKpJETZIvLpyil806Yeg=; b=JtZAp9iIalQQCPqL4XUw9IPZ4lkQr74bvbDZZKaPhkVEkaGFgJjJAGFAlCDfKKC1Sj XxRMu5DXI6E79Uqcy2mjSRjEvlH2Itc5LWRrzm7K4a7iuI5x67eflVb7Xg1/BZSRJsD1 KwnV/ZJMCVeCyWFX6DMCXdUDwGCzogtJc6YFdU0OuASRWsVW1MXoI+/6eVG5om6H15tQ wNU+gvIqMLd/6T/df9odNSnzjZkexgP5rSDWPDdb7lVJjsKngGimztUeuFXqRNO5c9kh 5qSXqHTnfurPGbYoYIqzZ8UD6HJwsgDzymU4epnKjkzCprbwG8weQr1rV/Yp7sqrbBBy gGYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:from:date:message-id:subject :to; bh=0Zxu7UMCBX4wzTu2ijtJxPqkKpJETZIvLpyil806Yeg=; b=SvauZThsRYFD74RUG8EMUoE60WVlwoNfS9I3bU3D47VtveXYTM1FsT/QRE2yHSiSej MFeXDK/eNcXR0XS0NnVASi3xl059BWmucAYstNpayD1h8qlQrP3mhmg8esctqSxgj3i8 hmTXzqOWqVLKzhilzrJDelQUmySqswSQJzlvKEjCNHFsFzZlrqXFULFVDlR0BUDcnRBw /CVYr2ylZvLkIX/TaQ0wuiAzst2vXXQCFg6oqs6+2Xt4GJ7+KmbV7bucyuY8RlrT4+/c JASf+UBIuj4bPNKuElQWSwZ5QS1LIEC/gaCM4xO2yYHZfxcGOJJ/gBKXAN4WxOYkRVV1 4m/Q== X-Gm-Message-State: APzg51DVz6RP4j+jHMF+FbmGmL0PtjXVpJpkbmpbmbdTeYadx9nAyIU6 Ljli71vkTMamK3PdUBpX1KPfd88Y3AUWQATG+Bmffu7v X-Google-Smtp-Source: ANB0Vdbow7zSNNxhmw24C+ux5w9yWm0fr2xs3dC+KCTirlaMZJTG2/iXyMxabkSHb2huHMby3DTqF74EOwPNxA4Rrhg= X-Received: by 2002:a6b:e716:: with SMTP id b22-v6mr17802390ioh.239.1536591395452; Mon, 10 Sep 2018 07:56:35 -0700 (PDT) MIME-Version: 1.0 Sender: carpeddiem@gmail.com Received: by 2002:a6b:404:0:0:0:0:0 with HTTP; Mon, 10 Sep 2018 07:56:14 -0700 (PDT) From: Ed Maste Date: Mon, 10 Sep 2018 10:56:14 -0400 X-Google-Sender-Auth: 6ETo42A2PJTnRvCfkwLtF9HtxS0 Message-ID: Subject: Enabling the WITH_REPRODUCIBLE_BUILD knob for 12.0-REL To: FreeBSD Current Content-Type: text/plain; charset="UTF-8" X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Sep 2018 14:56:37 -0000 The FreeBSD base system is a reproducible build[1] with a minor exception: the build metadata (timestamps, user, hostname, etc.) included in the kernel and loader. With the default, non-reproducible build the kernel ident looks like: FreeBSD 12.0-ALPHA5 #4 r338195: Mon Jan 1 10:11:12 EDT 2018 user@hostname:/path/to/freebsd/src and the loader ident: FreeBSD/amd64 EFI loader, Revision 1.1 (Mon Jan 1 10:11:12 EDT 2018 user@hostname) With reproducible builds enabled the kernel ident looks like: FreeBSD 12.0-ALPHA5 r338195 and the loader ident: FreeBSD/amd64 EFI loader, Revision 1.1 I would like to enable the REPRODUCIBLE_BUILD knob by default for the 12.0 release, and propose we do this by adding a step to switch the default to the list of changes[2] that re@ commits to the branch as part of the release process. [1] https://reproducible-builds.org [2] https://www.freebsd.org/doc/en_US.ISO8859-1/articles/freebsd-releng/releng-head.html