freebsd-dev/sys/amd64/include/ucontext.h

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/*-
* Copyright (c) 1999 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_UCONTEXT_H_
#define _MACHINE_UCONTEXT_H_
typedef struct __mcontext {
/*
* The first 20 fields must match the definition of
* sigcontext. So that we can support sigcontext
* and ucontext_t at the same time.
*/
register_t mc_onstack; /* XXX - sigcontext compat. */
register_t mc_rdi; /* machine state (struct trapframe) */
register_t mc_rsi;
register_t mc_rdx;
register_t mc_rcx;
register_t mc_r8;
register_t mc_r9;
register_t mc_rax;
register_t mc_rbx;
register_t mc_rbp;
register_t mc_r10;
register_t mc_r11;
register_t mc_r12;
register_t mc_r13;
register_t mc_r14;
register_t mc_r15;
register_t mc_trapno;
register_t mc_addr;
register_t mc_err;
register_t mc_rip;
register_t mc_cs;
register_t mc_rflags;
register_t mc_rsp;
register_t mc_ss;
long mc_len; /* sizeof(mcontext_t) */
#define _MC_FPFMT_NODEV 0x10000 /* device not present or configured */
#define _MC_FPFMT_XMM 0x10002
long mc_fpformat;
#define _MC_FPOWNED_NONE 0x20000 /* FP state not used */
#define _MC_FPOWNED_FPU 0x20001 /* FP state came from FPU */
#define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */
long mc_ownedfp;
long mc_spare1[1]; /* align next field to 16 bytes */
/*
* See <machine/npx.h> for the internals of mc_fpstate[].
*/
long mc_fpstate[128] __aligned(16);
long mc_spare2[8];
} mcontext_t;
#endif /* !_MACHINE_UCONTEXT_H_ */