From owner-freebsd-questions Sun Oct 12 23:41:15 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id XAA22494 for questions-outgoing; Sun, 12 Oct 1997 23:41:15 -0700 (PDT) (envelope-from owner-freebsd-questions) Received: from gdi.uoregon.edu (gdi.uoregon.edu [128.223.170.30]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id XAA22489 for ; Sun, 12 Oct 1997 23:41:12 -0700 (PDT) (envelope-from dwhite@gdi.uoregon.edu) Received: from localhost (dwhite@localhost) by gdi.uoregon.edu (8.8.5/8.8.5) with SMTP id XAA10402; Sun, 12 Oct 1997 23:41:11 -0700 (PDT) Date: Sun, 12 Oct 1997 23:41:11 -0700 (PDT) From: Doug White Reply-To: Doug White To: Jason Alan Nordwick cc: questions@FreeBSD.ORG Subject: Re: more kernel/libc questions. In-Reply-To: <199710060447.VAA19396@graft.xcf.berkeley.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Sun, 5 Oct 1997, Jason Alan Nordwick wrote: > if not then where is the user level version of open ? open is in libc. See open(2). > what does brk/sbrk do in terms of the vm structures ? This bit on the brk(2) man page implies to me that they don't do anything useful: The brk and sbrk functions are historical curiosities left over from ear- lier days before the advent of virtual memory management. > where is the code for it ? In the kernel. I probably shouldn't be answering these, it probably belongs in hackers@freebsd.org. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major