xref: /dragonfly/sys/sys/tls.h (revision ab709bfb)
1 /*
2  * Copyright (c) 2005,2008 The DragonFly Project.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  * 3. Neither the name of The DragonFly Project nor the names of its
15  *    contributors may be used to endorse or promote products derived
16  *    from this software without specific, prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
22  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
24  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
28  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  * $DragonFly: src/sys/sys/tls.h,v 1.11 2008/08/29 20:01:08 dillon Exp $
32  */
33 
34 #ifndef _SYS_TLS_H_
35 #define _SYS_TLS_H_
36 
37 #include <sys/types.h>
38 
39 struct tls_info {
40 	void *base;
41 	long size;	/* must be signed */
42 };
43 
44 int set_tls_area(int which, struct tls_info *info, size_t infosize);
45 int get_tls_area(int which, struct tls_info *info, size_t infosize);
46 
47 #ifdef __amd64__
48 
49 #define TLS_WHICH_FS	0
50 #define TLS_WHICH_GS	1
51 
52 #endif
53 
54 #endif
55