1 /* $Id: os-defaults.h,v 5.2 90/06/23 22:20:44 jsp Rel $ */ 2 3 /* 4 * Common OS definitions. These may be overridden in 5 * the OS specific files ("os-foo.h"). 6 * 7 * Copyright (c) 1989 Jan-Simon Pendry 8 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 9 * Copyright (c) 1989 The Regents of the University of California. 10 * All rights reserved. 11 * 12 * This code is derived from software contributed to Berkeley by 13 * Jan-Simon Pendry at Imperial College, London. 14 * 15 * %sccs.include.redist.c% 16 * 17 * @(#)os-defaults.h 5.1 (Berkeley) 06/29/90 18 */ 19 20 /* 21 * What level of AMD are we backward compatible with? 22 * This only applies to externally visible characteristics. 23 * Rev.Minor.Branch.Patch (2 digits each) 24 */ 25 #define AMD_COMPAT 5000000 /* 5.0 */ 26 27 /* 28 * What type is free(void*) returning? 29 */ 30 #define FREE_RETURN_TYPE void 31 32 /* 33 * Is the mount table mirrored in software 34 */ 35 #define UPDATE_MTAB 36 37 /* 38 * Where to get union wait 39 */ 40 #define WAIT <sys/wait.h> 41 42 /* 43 * Where to get mount entry info 44 */ 45 #define MNTENT_HDR <mntent.h> 46 47 /* 48 * Include support for syslog() 49 */ 50 #define HAS_SYSLOG 51 52 /* 53 * Byte ordering 54 */ 55 #define ARCH_ENDIAN "unknown" 56 57 /* 58 * Name of filesystem types 59 */ 60 #define MTAB_TYPE_NFS "nfs" 61 #define MTAB_TYPE_UFS "4.2" 62 63 /* 64 * Name of mount & unmount system calls 65 * 66 * NOTE: 67 * UNMOUNT_TRAP takes a struct mntent * 68 */ 69 #define MOUNT_TRAP(type, mnt, flags, mnt_data) \ 70 mount(type, mnt->mnt_dir, flags, mnt_data) 71 #define UNMOUNT_TRAP(mnt) unmount(mnt->mnt_dir) 72 73 /* 74 * How to unmount filesystems. 75 * NEED_UMOUNT_FS includes code to scan the mount table 76 * to find the correct information for the unmount system 77 * call. Some systems, such as 4.4bsd, do not require 78 * this - they can just do an unmount system call directly. 79 */ 80 #define NEED_UMOUNT_FS 81 #define UMOUNT_FS(dir) umount_fs(dir) 82 83 /* 84 * Type of a file handle 85 */ 86 #define NFS_FH_TYPE fhandle_t * 87 #define NFS_FH_DREF(dst, src) { (dst) = (src); } 88 89 /* 90 * How to copy an address into an NFS filehandle 91 */ 92 #define NFS_SA_DREF(dst, src) { (dst).addr = (src); } 93 94 /* 95 * Type of filesystem type 96 */ 97 #define MTYPE_TYPE int 98 99 /* 100 * How to get a mount list 101 */ 102 #define READ_MTAB_FROM_FILE 103