#!/bin/bash
#
# Copyright(c) 2012-2019 Intel Corporation
# SPDX-License-Identifier: BSD-3-Clause-Clear
#

. `dirname $0`/conf_framework

if compile_module "vm_munmap(0, 0)" "linux/mm.h"
then
    add_function "
#include <uapi/asm-generic/mman-common.h>
static inline unsigned long cas_vm_mmap(struct file *file,
		unsigned long addr, unsigned long len)
{
	return vm_mmap(file, addr, len, PROT_READ | PROT_WRITE,
		MAP_ANONYMOUS | MAP_PRIVATE, 0);
}"
	add_function "
static inline int cas_vm_munmap(unsigned long start, size_t len)
{
	return vm_munmap(start, len);
}"
elif compile_module "do_munmap(NULL, 0)" "linux/mm.h"
then
    add_function "
#include <asm-generic/mman-common.h>
static inline unsigned long cas_vm_mmap(struct file *file,
		unsigned long addr, unsigned long len)
{
	return do_mmap_pgoff(file, addr, len, PROT_READ | PROT_WRITE,
		MAP_ANONYMOUS | MAP_PRIVATE, 0);
}"
    add_function "
static inline int cas_vm_munmap(unsigned long start, size_t len)
{
	return do_munmap(current->mm, start, len);
}"
fi