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/* $OpenBSD: frame.h,v 1.2 2021/05/12 01:20:52 jsg Exp $ */
/*
* Copyright (c) 2019 Brian Bamsch <bbamsch@google.com>
* Copyright (c) 2016 Dale Rahn <drahn@dalerahn.com>
* Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
* All rights reserved.
*
* Portions of this software were developed by SRI International and the
* University of Cambridge Computer Laboratory under DARPA/AFRL contract
* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
*
* Portions of this software were developed by the University of Cambridge
* Computer Laboratory as part of the CTSRD Project, with support from the
* UK Higher Education Innovation Fund (HEIF).
*
* 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.
* 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. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*/
#ifndef _MACHINE_FRAME_H_
#define _MACHINE_FRAME_H_
#ifndef _LOCORE
#include <sys/signal.h>
/*
* Exception/Trap Stack Frame
*/
#define clockframe trapframe
typedef struct trapframe {
/* Standard Registers */
register_t tf_ra;
register_t tf_sp;
register_t tf_gp;
register_t tf_tp;
register_t tf_t[7];
register_t tf_s[12];
register_t tf_a[8];
/* Supervisor Trap CSRs */
register_t tf_sepc;
register_t tf_sstatus;
register_t tf_stval;
register_t tf_scause;
} trapframe_t;
/*
* pushed on stack for signal delivery
*/
struct sigframe {
int sf_signum;
struct sigcontext sf_sc;
siginfo_t sf_si;
};
/*
* System stack frames.
*/
/*
* Stack frame inside cpu_switch()
*/
struct switchframe {
register_t sf_s[12];
register_t sf_ra;
};
struct callframe {
struct callframe *f_frame;
register_t f_ra;
};
#endif /* !_LOCORE */
#endif /* !_MACHINE_FRAME_H_ */
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