1 /*- 2 * Copyright (c) 1998-1999 Andrew Gallatin 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer 10 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software withough specific prior written permission 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <vm/vm.h> 32 #include <vm/vm_param.h> 33 #include <vm/pmap.h> 34 35 36 #include <sys/exec.h> 37 #include <sys/sysent.h> 38 #include <sys/cdefs.h> 39 40 #ifdef __ia64__ 41 #define FREEBSD32_USRSTACK ((1ul << 32) - IA32_PAGE_SIZE * 2) 42 #else 43 #define FREEBSD32_USRSTACK ((1ul << 32) - IA32_PAGE_SIZE) 44 #endif 45 46 #define IA32_PAGE_SIZE 4096 47 #define IA32_MAXDSIZ (512*1024*1024) /* 512MB */ 48 #define IA32_MAXSSIZ (64*1024*1024) /* 64MB */ 49 #define IA32_MAXVMEM 0 /* Unlimited */ 50