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mcontext.h revision 1.1.2.2 
      1 /*	$NetBSD: mcontext.h,v 1.1.2.2 2001/11/21 20:25:03 scw Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 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.
      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  * 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.
     25  *
     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
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     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
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _M68K_MCONTEXT_H_
     40 #define _M68K_MCONTEXT_H_
     41 
     42 #ifdef _KERNEL
     43 #include <machine/frame.h>
     44 #endif
     45 
     46 /*
     47  * General register state
     48  */
     49 #define	_NGREG		18
     50 typedef int		__greg_t;
     51 typedef	__greg_t	__gregset_t[_NGREG];
     52 
     53 #define	_REG_D0	0
     54 #define	_REG_D1	1
     55 #define	_REG_D2	2
     56 #define	_REG_D3	3
     57 #define	_REG_D4	4
     58 #define	_REG_D5	5
     59 #define	_REG_D6	6
     60 #define	_REG_D7	7
     61 #define	_REG_A0	8
     62 #define	_REG_A1	9
     63 #define	_REG_A2	10
     64 #define	_REG_A3	11
     65 #define	_REG_A4	12
     66 #define	_REG_A5	13
     67 #define	_REG_A6	14
     68 #define	_REG_A7	15
     69 #define	_REG_PC	16
     70 #define	_REG_PS	17
     71 
     72 typedef struct {
     73 	int	__fp_pcr;
     74 	int	__fp_psr;
     75 	int	__fp_piaddr;
     76 	int	__fp_fpregs[8][3];
     77 } __fpregset_t;
     78 
     79 typedef struct {
     80 	__gregset_t	__gregs;	/* General Register set */
     81 	__fpregset_t	__fpregs;	/* Floating Point Register set */
     82 	union {
     83 		long	__mc_state[202];
     84 #ifdef _KERNEL
     85 		struct {
     86 			/* Rest of the frame. */
     87 			unsigned int	format;
     88 			unsigned int	vector;
     89 			union F_u	exframe;
     90 			/* Rest of the FPU frame. */
     91 			union FPF_u1	fpf_u1;
     92 			union FPF_u2	fpf_u2;
     93 		} mc_frame;
     94 #endif
     95 	}		__mc_pad;
     96 } mcontext_t;
     97 
     98 /* Note: no additional padding is to be performed in ucontext_t. */
     99 
    100 /* Machine-specific uc_flags value */
    101 #define _UC_M68K_FMT_VALID 0x00010000	/* `mc_frame' contents valid */
    102 
    103 #endif	/* !_M68K_MCONTEXT_H_ */
    104