1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/* $OpenBSD: tcb.h,v 1.5 2016/09/04 08:42:47 guenther Exp $ */
/*
* Copyright (c) 2011 Philip Guenther <guenther@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _MACHINE_TCB_H_
#define _MACHINE_TCB_H_
#ifdef _KERNEL
#define TCB_GET(p) \
((void *)trapframe(p)->fixreg[2])
#define TCB_SET(p, addr) \
(trapframe(p)->fixreg[2] = (__register_t)(addr))
#else /* _KERNEL */
/* ELF TLS ABI calls for small TCB, with static TLS data after it */
#define TLS_VARIANT 1
/* powerpc offsets the TCB pointer 0x7000 bytes after the data */
#define TCB_OFFSET 0x7000
register void *__tcb __asm__ ("%r2");
#define TCB_GET() (__tcb)
#define TCB_SET(tcb) ((__tcb) = (tcb))
#endif /* _KERNEL */
#endif /* _MACHINE_TCB_H_ */
|
