|  | /* | 
|  | * Copyright (c) 2009 The Regents of the University of California | 
|  | * Barret Rhoden <brho@cs.berkeley.edu> | 
|  | * See LICENSE for details. | 
|  | * | 
|  | * Memory management flags, currently used in mmap(). | 
|  | * Try to keep these in sync with /usr/include/bits/mman.h so we have less | 
|  | * issues with userspace. | 
|  | */ | 
|  |  | 
|  | #pragma once | 
|  |  | 
|  | /* Memory protection states (what you're allowed to do */ | 
|  | #define PROT_READ		0x1 | 
|  | #define PROT_WRITE		0x2 | 
|  | #define PROT_EXEC		0x4 | 
|  | #define PROT_NONE		0x0 | 
|  | #define PROT_VALID_PROTS	(PROT_READ | PROT_WRITE | PROT_EXEC) | 
|  |  | 
|  | /* mmap flags, only anonymous is supported now, feel free to pass others */ | 
|  | #define MAP_SHARED		0x01 | 
|  | #define MAP_PRIVATE		0x02 | 
|  | #define MAP_FIXED		0x10 | 
|  | #define MAP_ANONYMOUS		0x20 | 
|  | #define MAP_ANON MAP_ANONYMOUS | 
|  |  | 
|  | #define MAP_LOCKED		0x02000 | 
|  | #define MAP_POPULATE		0x08000 | 
|  |  | 
|  | #define MAP_FAILED		((void*)-1) |