xref: /freebsd/sys/arm64/include/ucontext.h (revision 06c3fb27)
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 
31 #ifdef __arm__
32 #include <arm/ucontext.h>
33 #else /* !__arm__ */
34 
35 #ifndef _MACHINE_UCONTEXT_H_
36 #define	_MACHINE_UCONTEXT_H_
37 
38 struct gpregs {
39 	__register_t	gp_x[30];
40 	__register_t	gp_lr;
41 	__register_t	gp_sp;
42 	__register_t	gp_elr;
43 	__uint64_t	gp_spsr;
44 };
45 
46 struct fpregs {
47 	__uint128_t	fp_q[32];
48 	__uint32_t	fp_sr;
49 	__uint32_t	fp_cr;
50 	int		fp_flags;
51 	int		fp_pad;
52 };
53 
54 struct __mcontext {
55 	struct gpregs	mc_gpregs;
56 	struct fpregs	mc_fpregs;
57 	int		mc_flags;
58 #define	_MC_FP_VALID	0x1		/* Set when mc_fpregs has valid data */
59 	int		mc_pad;		/* Padding */
60 	__uint64_t	mc_spare[8];	/* Space for expansion, set to zero */
61 };
62 
63 typedef struct __mcontext mcontext_t;
64 
65 #ifdef COMPAT_FREEBSD32
66 #include <compat/freebsd32/freebsd32_signal.h>
67 typedef struct __mcontext32 {
68 	uint32_t		mc_gregset[17];
69 	uint32_t		mc_vfp_size;
70 	uint32_t		mc_vfp_ptr;
71 	uint32_t		mc_spare[33];
72 } mcontext32_t;
73 
74 typedef struct __ucontext32 {
75 	sigset_t		uc_sigmask;
76 	mcontext32_t		uc_mcontext;
77 	u_int32_t		uc_link;
78 	struct sigaltstack32	uc_stack;
79 	u_int32_t		uc_flags;
80 	u_int32_t		__spare__[4];
81 } ucontext32_t;
82 
83 typedef struct __mcontext32_vfp {
84 	__uint64_t	mcv_reg[32];
85 	__uint32_t	mcv_fpscr;
86 } mcontext32_vfp_t;
87 
88 #endif /* COMPAT_FREEBSD32 */
89 
90 #endif	/* !_MACHINE_UCONTEXT_H_ */
91 
92 #endif /* !__arm__ */
93