From owner-freebsd-ia64 Tue Dec 17 12:58: 4 2002 Delivered-To: freebsd-ia64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D0C8B37B401 for ; Tue, 17 Dec 2002 12:58:03 -0800 (PST) Received: from kayak.xcllnt.net (209-128-86-226.bayarea.net [209.128.86.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8EBD043EA9 for ; Tue, 17 Dec 2002 12:58:02 -0800 (PST) (envelope-from marcel@xcllnt.net) Received: from dhcp01.pn.xcllnt.net (dhcp01.pn.xcllnt.net [192.168.4.201]) by kayak.xcllnt.net (8.12.6/8.12.6) with ESMTP id gBHKvtrT082596; Tue, 17 Dec 2002 12:57:56 -0800 (PST) (envelope-from marcel@kayak.pn.xcllnt.net) Received: from dhcp01.pn.xcllnt.net (localhost [127.0.0.1]) by dhcp01.pn.xcllnt.net (8.12.6/8.12.6) with ESMTP id gBHKweWg000830; Tue, 17 Dec 2002 12:58:40 -0800 (PST) (envelope-from marcel@dhcp01.pn.xcllnt.net) Received: (from marcel@localhost) by dhcp01.pn.xcllnt.net (8.12.6/8.12.6/Submit) id gBHKwd1C000829; Tue, 17 Dec 2002 12:58:39 -0800 (PST) Date: Tue, 17 Dec 2002 12:58:39 -0800 From: Marcel Moolenaar To: socketd Cc: ia64@FreeBSD.ORG Subject: Re: Memory permissions Message-ID: <20021217205839.GA795@dhcp01.pn.xcllnt.net> References: <200212171016.gBHAGsOi017433@smtp030.tiscali.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200212171016.gBHAGsOi017433@smtp030.tiscali.dk> User-Agent: Mutt/1.5.1i Sender: owner-freebsd-ia64@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Tue, Dec 17, 2002 at 11:20:29AM +0100, socketd wrote: > > Hi all > > I have asked in hackers@ but got no answer, so I'll try here. > Within the thing we call "x86 compatible", we have ia32 and ia64 right? No. ia64 (formally known as IPF) is not compatible with ia32 (or i386). ia64 does have a ia32 compatibility mode that allows one to run ia32 binaries on ia64, but it's an emulation. > Ia32 doesn't support read AND execute permissions on the memory, as it sees > read and execute as the same thing. Has this changed in ia64, so we can > make non-executable heaps and stacks? Yes. ia64 has distinct attributes for read, write and execute. -- Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ia64" in the body of the message