ucontext.h revision 266570 
1/*	$NetBSD: mcontext.h,v 1.4 2003/10/08 22:43:01 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Klaus Klein and by Jason R. Thorpe of Wasabi Systems, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $FreeBSD: head/sys/arm/include/ucontext.h 266570 2014-05-23 00:21:02Z imp $
32 */
33
34#ifndef _MACHINE_MCONTEXT_H_
35#define _MACHINE_MCONTEXT_H_
36/*
37 * General register state
38 */
39#define _NGREG		17
40typedef unsigned int	__greg_t;
41typedef __greg_t	__gregset_t[_NGREG];
42
43#define _REG_R0		0
44#define _REG_R1		1
45#define _REG_R2		2
46#define _REG_R3		3
47#define _REG_R4		4
48#define _REG_R5		5
49#define _REG_R6		6
50#define _REG_R7		7
51#define _REG_R8		8
52#define _REG_R9		9
53#define _REG_R10	10
54#define _REG_R11	11
55#define _REG_R12	12
56#define _REG_R13	13
57#define _REG_R14	14
58#define _REG_R15	15
59#define _REG_CPSR	16
60/* Convenience synonyms */
61#define _REG_FP		_REG_R11
62#define _REG_SP		_REG_R13
63#define _REG_LR		_REG_R14
64#define _REG_PC		_REG_R15
65
66/*
67 * Floating point register state
68 */
69/* Note: the storage layout of this structure must be identical to ARMFPE! */
70typedef struct {
71	unsigned int	__fp_fpsr;
72	struct {
73		unsigned int	__fp_exponent;
74		unsigned int	__fp_mantissa_hi;
75		unsigned int	__fp_mantissa_lo;
76	}		__fp_fr[8];
77} __fpregset_t;
78
79typedef struct {
80	unsigned int	__vfp_fpscr;
81	unsigned int	__vfp_fstmx[33];
82	unsigned int	__vfp_fpsid;
83} __vfpregset_t;
84
85typedef struct {
86	__gregset_t	__gregs;
87	union {
88		__fpregset_t __fpregs;
89		__vfpregset_t __vfpregs;
90	} __fpu;
91} mcontext_t;
92
93/* Machine-dependent uc_flags */
94#define	_UC_ARM_VFP	0x00010000	/* FPU field is VFP */
95
96/* used by signal delivery to indicate status of signal stack */
97#define _UC_SETSTACK	0x00020000
98#define _UC_CLRSTACK	0x00040000
99
100#endif	/* !_MACHINE_MCONTEXT_H_ */
101