projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 175f072e | 1 | /* |
| 175f072e KM |
2 | * Copyright (c) 1991 Regents of the University of California. |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * The Mach Operating System project at Carnegie-Mellon University. | |
| 7 | * | |
| 0e24ad83 | 8 | * %sccs.include.redist.c% |
| 175f072e | 9 | * |
| 0e24ad83 KM |
10 | * @(#)vm_prot.h 7.2 (Berkeley) %G% |
| 11 | * | |
| 12 | * | |
| 13 | * Copyright (c) 1987, 1990 Carnegie-Mellon University. | |
| 14 | * All rights reserved. | |
| 15 | * | |
| 16 | * Authors: Avadis Tevanian, Jr., Michael Wayne Young | |
| 17 | * | |
| 18 | * Permission to use, copy, modify and distribute this software and | |
| 19 | * its documentation is hereby granted, provided that both the copyright | |
| 20 | * notice and this permission notice appear in all copies of the | |
| 21 | * software, derivative works or modified versions, and any portions | |
| 22 | * thereof, and that both notices appear in supporting documentation. | |
| 23 | * | |
| 24 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" | |
| 25 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND | |
| 26 | * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. | |
| 27 | * | |
| 28 | * Carnegie Mellon requests users of this software to return to | |
| 29 | * | |
| 30 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU | |
| 31 | * School of Computer Science | |
| 32 | * Carnegie Mellon University | |
| 33 | * Pittsburgh PA 15213-3890 | |
| 34 | * | |
| 35 | * any improvements or extensions that they make and grant Carnegie the | |
| 36 | * rights to redistribute these changes. | |
| 175f072e KM |
37 | */ |
| 38 | ||
| 39 | /* | |
| 40 | * Virtual memory protection definitions. | |
| 41 | */ | |
| 42 | ||
| 43 | #ifndef _VM_PROT_ | |
| 44 | #define _VM_PROT_ | |
| 45 | ||
| 46 | /* | |
| 47 | * Types defined: | |
| 48 | * | |
| 49 | * vm_prot_t VM protection values. | |
| 50 | */ | |
| 51 | ||
| 52 | typedef int vm_prot_t; | |
| 53 | ||
| 54 | /* | |
| 55 | * Protection values, defined as bits within the vm_prot_t type | |
| 56 | */ | |
| 57 | ||
| 58 | #define VM_PROT_NONE ((vm_prot_t) 0x00) | |
| 59 | ||
| 60 | #define VM_PROT_READ ((vm_prot_t) 0x01) /* read permission */ | |
| 61 | #define VM_PROT_WRITE ((vm_prot_t) 0x02) /* write permission */ | |
| 62 | #define VM_PROT_EXECUTE ((vm_prot_t) 0x04) /* execute permission */ | |
| 63 | ||
| 64 | /* | |
| 65 | * The default protection for newly-created virtual memory | |
| 66 | */ | |
| 67 | ||
| 68 | #define VM_PROT_DEFAULT (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE) | |
| 69 | ||
| 70 | /* | |
| 71 | * The maximum privileges possible, for parameter checking. | |
| 72 | */ | |
| 73 | ||
| 74 | #define VM_PROT_ALL (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE) | |
| 75 | ||
| 76 | #endif _VM_PROT_ |