xref: /freebsd/sys/arm64/include/ucontext.h (revision 535af610a4fdace6d50960c0ad9be0597eea7a1b)
1 /*-
2  * Copyright (c) 2014 Andrew Turner
3  * Copyright (c) 2014-2015 The FreeBSD Foundation
4  * All rights reserved.
5  *
6  * This software was developed by Andrew Turner under
7  * sponsorship from the FreeBSD Foundation.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  * $FreeBSD$
31  */
32 
33 #ifdef __arm__
34 #include <arm/ucontext.h>
35 #else /* !__arm__ */
36 
37 #ifndef _MACHINE_UCONTEXT_H_
38 #define	_MACHINE_UCONTEXT_H_
39 
40 struct gpregs {
41 	__register_t	gp_x[30];
42 	__register_t	gp_lr;
43 	__register_t	gp_sp;
44 	__register_t	gp_elr;
45 	__uint64_t	gp_spsr;
46 };
47 
48 struct fpregs {
49 	__uint128_t	fp_q[32];
50 	__uint32_t	fp_sr;
51 	__uint32_t	fp_cr;
52 	int		fp_flags;
53 	int		fp_pad;
54 };
55 
56 struct __mcontext {
57 	struct gpregs	mc_gpregs;
58 	struct fpregs	mc_fpregs;
59 	int		mc_flags;
60 #define	_MC_FP_VALID	0x1		/* Set when mc_fpregs has valid data */
61 	int		mc_pad;		/* Padding */
62 	__uint64_t	mc_spare[8];	/* Space for expansion, set to zero */
63 };
64 
65 typedef struct __mcontext mcontext_t;
66 
67 #ifdef COMPAT_FREEBSD32
68 #include <compat/freebsd32/freebsd32_signal.h>
69 typedef struct __mcontext32 {
70 	uint32_t		mc_gregset[17];
71 	uint32_t		mc_vfp_size;
72 	uint32_t		mc_vfp_ptr;
73 	uint32_t		mc_spare[33];
74 } mcontext32_t;
75 
76 typedef struct __ucontext32 {
77 	sigset_t		uc_sigmask;
78 	mcontext32_t		uc_mcontext;
79 	u_int32_t		uc_link;
80 	struct sigaltstack32	uc_stack;
81 	u_int32_t		uc_flags;
82 	u_int32_t		__spare__[4];
83 } ucontext32_t;
84 
85 typedef struct __mcontext32_vfp {
86 	__uint64_t	mcv_reg[32];
87 	__uint32_t	mcv_fpscr;
88 } mcontext32_vfp_t;
89 
90 #endif /* COMPAT_FREEBSD32 */
91 
92 #endif	/* !_MACHINE_UCONTEXT_H_ */
93 
94 #endif /* !__arm__ */
95