From owner-freebsd-questions@FreeBSD.ORG Thu Jun 26 21:39:09 2008 Return-Path: Delivered-To: freebsd-questions@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4B2321065670 for ; Thu, 26 Jun 2008 21:39:09 +0000 (UTC) (envelope-from kris@FreeBSD.org) Received: from weak.local (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 5CD068FC1A; Thu, 26 Jun 2008 21:39:08 +0000 (UTC) (envelope-from kris@FreeBSD.org) Message-ID: <48640C7B.5010708@FreeBSD.org> Date: Thu, 26 Jun 2008 23:39:07 +0200 From: Kris Kennaway User-Agent: Thunderbird 2.0.0.14 (Macintosh/20080421) MIME-Version: 1.0 To: Tim Daneliuk References: <4863F317.6010701@tundraware.com> <4863F4A7.1070909@FreeBSD.org> <4863F5A3.6050209@tundraware.com> <4863FC2A.5040909@FreeBSD.org> <4864015C.7010805@tundraware.com> <48640A12.3000108@FreeBSD.org> <48640AB9.9000303@tundraware.com> In-Reply-To: <48640AB9.9000303@tundraware.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: FreeBSD Mailing List Subject: Re: Making World For amd64 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Jun 2008 21:39:09 -0000 Tim Daneliuk wrote: > Kris Kennaway wrote: >> Tim Daneliuk wrote: >>> Kris Kennaway wrote: >>>> Tim Daneliuk wrote: >>>>> Kris Kennaway wrote: >>>>>> Tim Daneliuk wrote: >>>>>>> Is there anything special one has to do when doing a make world >>>>>>> intended for 64-bit FreeBSD or is it sufficient to build the 64-bit >>>>>>> kernel and make world as everywhere else? >>>>>> The same as everywhere else. >>>>>> >>>>>> Kris >>>>> So, I take it that this means that all the userspace programs, ports, >>>>> packages, utilities, etc. do *not* take advantage of the 64-bit >>>>> extensions. That is, only the kernel gets the benefit of the >>>>> wider word. Is that correct? >>>>> >>>> No, everything is 100% native. >>>> >>>> Kris >>>> >>> OK, these may be really stupid questions but: >>> >>> 1) How does make world know whether to build 32-bit or 64-bit binaries? >> It always uses the native format. amd64 == 64 bit, i386 == 32 bit > > Don't mean to beat this to death, but can you say just a bit more > about this please. If I am running an i386 kernel on 64-bit capable > processor, I assume I will get 32-bit binaries or not? IOW, what > triggers makeworld to do something in 32- vs. 64-bit mode? The > *kernel* currently executing or the underlying hardware capability? I'm pretty sure this is all documented ;) The "i386" version of FreeBSD is 32-bit. You can run it on any i386-compatible machine, including amd64/em64t machines. The "amd64" version of FreeBSD is 64-bit. Kris