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1 /* $NetBSD: mcontext.h,v 1.5 2005/12/11 12:16:47 christos Exp $ */
4 * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
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.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
39 #ifndef _ARM_MCONTEXT_H_
40 #define _ARM_MCONTEXT_H_
43 * General register state
46 typedef unsigned int __greg_t
;
47 typedef __greg_t __gregset_t
[_NGREG
];
66 /* Convenience synonyms */
67 #define _REG_FP _REG_R11
68 #define _REG_SP _REG_R13
69 #define _REG_LR _REG_R14
70 #define _REG_PC _REG_R15
73 * Floating point register state
75 /* Note: the storage layout of this structure must be identical to ARMFPE! */
77 unsigned int __fp_fpsr
;
79 unsigned int __fp_exponent
;
80 unsigned int __fp_mantissa_hi
;
81 unsigned int __fp_mantissa_lo
;
86 unsigned int __vfp_fpscr
;
87 unsigned int __vfp_fstmx
[33];
88 unsigned int __vfp_fpsid
;
94 __fpregset_t __fpregs
;
95 __vfpregset_t __vfpregs
;
99 /* Machine-dependent uc_flags */
100 #define _UC_ARM_VFP 0x00010000 /* FPU field is VFP */
102 /* used by signal delivery to indicate status of signal stack */
103 #define _UC_SETSTACK 0x00020000
104 #define _UC_CLRSTACK 0x00040000
106 #define _UC_MACHINE_PAD 3 /* Padding appended to ucontext_t */
108 #define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
109 #define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
110 #define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_R0])
112 #define _UC_MACHINE_SET_PC(uc, pc) _UC_MACHINE_PC(uc) = (pc)
114 #endif /* !_ARM_MCONTEXT_H_ */