From owner-freebsd-hackers Sun Dec 24 01:38:59 1995 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id BAA16151 for hackers-outgoing; Sun, 24 Dec 1995 01:38:59 -0800 (PST) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id BAA16105 for ; Sun, 24 Dec 1995 01:38:46 -0800 (PST) Received: from sax.sax.de by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id KAA09961 for ; Sun, 24 Dec 1995 10:38:36 +0100 Received: by sax.sax.de (8.6.11/8.6.12-s1) with UUCP id KAA08336 for freebsd-hackers@freebsd.org; Sun, 24 Dec 1995 10:38:36 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.6.12/8.6.9) id JAA29891 for freebsd-hackers@freebsd.org; Sun, 24 Dec 1995 09:56:57 +0100 From: J Wunsch Message-Id: <199512240856.JAA29891@uriah.heep.sax.de> Subject: Re: MMAP with MAP_FIXED To: freebsd-hackers@freebsd.org (FreeBSD hackers) Date: Sun, 24 Dec 1995 09:56:57 +0100 (MET) Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199512240030.SAA23720@main.gbdata.com> from "Gary Clark II" at Dec 23, 95 06:30:19 pm X-Phone: +49-351-2012 669 X-Mailer: ELM [version 2.4 PL23] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-hackers@freebsd.org Precedence: bulk As Gary Clark II wrote: > Can anyone give me an example of using mmap with MAP_FIXED? Or maybe just > the macro that will put my address on a page bondary. int pagesize = getpagesize(); caddr_t a; ... a = ...; /* this rounds a up to the next page boundary */ a = (caddr_t)(((int)a | (pagesize - 1)) + 1); Perhaps there are even macros available. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)