ladybird/Userland/Libraries/LibC/mman.h

/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include <sys/cdefs.h>
#include <sys/types.h>

#define MAP_FILE 0x00
#define MAP_SHARED 0x01
#define MAP_PRIVATE 0x02
#define MAP_FIXED 0x10
#define MAP_ANONYMOUS 0x20
#define MAP_ANON MAP_ANONYMOUS
#define MAP_STACK 0x40
#define MAP_NORESERVE 0x80

#define PROT_READ 0x1
#define PROT_WRITE 0x2
#define PROT_EXEC 0x4
#define PROT_NONE 0x0

#define MAP_FAILED ((void*)-1)

#define MADV_SET_VOLATILE 0x100
#define MADV_SET_NONVOLATILE 0x200
#define MADV_GET_VOLATILE 0x400

#define MAP_INHERIT_ZERO 1

__BEGIN_DECLS

void* mmap(void* addr, size_t, int prot, int flags, int fd, off_t);
void* mmap_with_name(void* addr, size_t, int prot, int flags, int fd, off_t, const char* name);
void* serenity_mmap(void* addr, size_t, int prot, int flags, int fd, off_t, size_t alignment, const char* name);
void* mremap(void* old_address, size_t old_size, size_t new_size, int flags);
int munmap(void*, size_t);
int mprotect(void*, size_t, int prot);
int set_mmap_name(void*, size_t, const char*);
int madvise(void*, size_t, int advice);
int minherit(void*, size_t, int inherit);
void* allocate_tls(size_t);

__END_DECLS