159 lines
4.3 KiB
C
159 lines
4.3 KiB
C
/* $NetBSD: mcontext.h,v 1.4 2003/10/13 18:38:34 fvdl Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Klaus Klein.
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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 by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND 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 THE FOUNDATION OR CONTRIBUTORS
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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 _AMD64_MCONTEXT_H_
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#define _AMD64_MCONTEXT_H_
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/*
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* General register state
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*/
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#define _NGREG 26
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typedef unsigned long __greg_t;
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typedef __greg_t __gregset_t[_NGREG];
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/*
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* This is laid out to match trapframe and intrframe (see <machine/frame.h>).
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* Hence, memcpy between gregs and a trapframe is possible.
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*/
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#define _REG_RDI 0
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#define _REG_RSI 1
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#define _REG_RDX 2
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#define _REG_RCX 3
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#define _REG_R8 4
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#define _REG_R9 5
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#define _REG_R10 6
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#define _REG_R11 7
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#define _REG_R12 8
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#define _REG_R13 9
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#define _REG_R14 10
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#define _REG_R15 11
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#define _REG_RBP 12
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#define _REG_RBX 13
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#define _REG_RAX 14
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#define _REG_GS 15
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#define _REG_FS 16
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#define _REG_ES 17
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#define _REG_DS 18
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#define _REG_TRAPNO 19
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#define _REG_ERR 20
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#define _REG_RIP 21
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#define _REG_CS 22
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#define _REG_RFL 23
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#define _REG_URSP 24
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#define _REG_SS 25
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/*
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* Floating point register state
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*/
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typedef char __fpregset_t[512];
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/*
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* The padding below is to make __fpregs have a 16-byte aligned offset
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* within ucontext_t.
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*/
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typedef struct {
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__gregset_t __gregs;
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long __pad;
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__fpregset_t __fpregs;
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} mcontext_t;
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#define _UC_UCONTEXT_ALIGN (~0xf)
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#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_URSP])
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#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_RIP])
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#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_RAX])
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#define _UC_MACHINE_SET_PC(uc, pc) _UC_MACHINE_PC(uc) = (pc)
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/*
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* mcontext extensions to handle signal delivery.
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*/
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#define _UC_SETSTACK 0x00010000
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#define _UC_CLRSTACK 0x00020000
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#ifdef _KERNEL
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/*
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* 32bit context definitions.
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*/
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#define _NGREG32 19
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typedef unsigned int __greg32_t;
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typedef __greg32_t __gregset32_t[_NGREG32];
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#define _REG32_GS 0
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#define _REG32_FS 1
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#define _REG32_ES 2
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#define _REG32_DS 3
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#define _REG32_EDI 4
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#define _REG32_ESI 5
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#define _REG32_EBP 6
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#define _REG32_ESP 7
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#define _REG32_EBX 8
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#define _REG32_EDX 9
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#define _REG32_ECX 10
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#define _REG32_EAX 11
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#define _REG32_TRAPNO 12
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#define _REG32_ERR 13
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#define _REG32_EIP 14
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#define _REG32_CS 15
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#define _REG32_EFL 16
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#define _REG32_UESP 17
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#define _REG32_SS 18
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/*
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* Floating point register state
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*/
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typedef struct fxsave64 __fpregset32_t;
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typedef struct {
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__gregset32_t __gregs;
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__fpregset32_t __fpregs;
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} mcontext32_t;
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#define _UC_MACHINE_PAD32 5
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struct trapframe;
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int check_mcontext(const mcontext_t *, struct trapframe *);
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#endif /* _KERNEL */
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#endif /* !_AMD64_MCONTEXT_H_ */
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