Subversion Repositories c0or1k

/*

 * Prototypes for mmap/munmap functions that do the actual work.

 *

 * Copyright (C) 2007 Bahadir Balban

 */

#ifndef __MM0_MMAP_H__

#define __MM0_MMAP_H__

#include <task.h>

#include <vm_area.h>

/* POSIX-defined mmap flags */

#define PROT_READ       0x1

#define PROT_WRITE      0x2

#define PROT_EXEC       0x4

#define PROT_NONE       0x0

#define MAP_ANONYMOUS   0x20

#define MAP_FIXED       0x10

#define MAP_SHARED      0x01

#define MAP_PRIVATE     0x02

#define MAP_GROWSDOWN   0x00100

struct vm_area *vma_new(unsigned long pfn_start, unsigned long npages,

                        unsigned int flags, unsigned long file_offset);

int do_munmap(struct tcb *task, unsigned long vaddr, unsigned long size);

void *do_mmap(struct vm_file *mapfile, unsigned long f_offset, struct tcb *t,

              unsigned long map_address, unsigned int flags, unsigned int pages);

int mmap_address_validate(struct tcb *t, unsigned long map_address,

                          unsigned int vm_flags);

#endif /* __MM0_MMAP_H__ */