119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
/* $NetBSD: mcontext.h,v 1.8 2005/12/11 12:19:00 christos Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SH5_MCONTEXT_H_
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#define _SH5_MCONTEXT_H_
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#ifdef _KERNEL_
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#include <machine/frame.h>
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#endif
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/*
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* General register state
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*
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* See notes, below, about the layout of mcontext_t before changing this.
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*/
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#define _NGREG 73 /* PC, USR, R0 -> R62, TR0 -> TR7 */
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#define _REG_PC 0
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#define _REG_USR 1
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#define _REG_R(n) (2 + (n))
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#define _REG_TR(n) (65 + (n))
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#define _REG_FP _REG_R(14)
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#define _REG_SP _REG_R(15)
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#ifndef __ASSEMBLER__
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typedef __int64_t __greg_t;
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typedef __greg_t __gregset_t[_NGREG];
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/*
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* Floating point register state
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*
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* See notes, below, about the layout of mcontext_t before changing this.
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*/
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typedef float __fpreg_single_t;
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typedef double __fpreg_double_t;
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typedef struct {
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int __fp_scr;
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int __fp_pad;
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union {
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__fpreg_single_t __u_fp_single[64];
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__fpreg_double_t __u_fp_double[32];
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} __fpregs_u;
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} __fpregset_t;
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#define __fp_single __fpregs_u.__u_fp_single
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#define __fp_double __fpregs_u.__u_fp_double
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/*
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* SH5's mcontext_t structure.
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*
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* Note: This *exactly* matches the layout of SH5's "struct reg".
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* Please don't update one without making a similar change to the other.
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*/
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typedef struct {
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__gregset_t __gregs;
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__fpregset_t __fpregs;
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} mcontext_t;
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#define mcontext32_t mcontext_t
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#define cpu_getmcontext32 cpu_getmcontext
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#define cpu_setmcontext32 cpu_setmcontext
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#endif /* !__ASSEMBLER__ */
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/*
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* Note: no additional padding required in ucontext_t
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*/
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#define _UC_UCONTEXT_ALIGN (~0x7)
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#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
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#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
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#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_R(2)])
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#define _UC_MACHINE_SET_PC(uc, pc) _UC_MACHINE_PC(uc) = (pc)
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/*
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* Machine dependent uc_flags
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*/
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#define _UC_SETSTACK 0x10000
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#define _UC_CLRSTACK 0x20000
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#endif /* _SH5_MCONTEXT_H_ */
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