xref: /freebsd/sys/riscv/include/frame.h (revision 61e21613)
1 /*-
2  * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
3  * All rights reserved.
4  *
5  * Portions of this software were developed by SRI International and the
6  * University of Cambridge Computer Laboratory under DARPA/AFRL contract
7  * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
8  *
9  * Portions of this software were developed by the University of Cambridge
10  * Computer Laboratory as part of the CTSRD Project, with support from the
11  * UK Higher Education Innovation Fund (HEIF).
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #ifndef _MACHINE_FRAME_H_
36 #define	_MACHINE_FRAME_H_
37 
38 #ifndef LOCORE
39 
40 #include <sys/signal.h>
41 #include <sys/ucontext.h>
42 
43 /*
44  * NOTE: keep this structure in sync with struct reg and struct mcontext.
45  */
46 struct trapframe {
47 	uint64_t tf_ra;
48 	uint64_t tf_sp;
49 	uint64_t tf_gp;
50 	uint64_t tf_tp;
51 	uint64_t tf_t[7];
52 	uint64_t tf_s[12];
53 	uint64_t tf_a[8];
54 	uint64_t tf_sepc;
55 	uint64_t tf_sstatus;
56 	uint64_t tf_stval;
57 	uint64_t tf_scause;
58 };
59 
60 /*
61  * Signal frame. Pushed onto user stack before calling sigcode.
62  */
63 struct sigframe {
64 	siginfo_t	sf_si;	/* actual saved siginfo */
65 	ucontext_t	sf_uc;	/* actual saved ucontext */
66 };
67 
68 #endif /* !LOCORE */
69 
70 /* Definitions for syscalls */
71 #define	NARGREG		8				/* 8 args in regs */
72 
73 #endif /* !_MACHINE_FRAME_H_ */
74