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
38struct 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
46struct 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/*
55 * Support for registers that don't fit into gpregs or fpregs, e.g. SVE.
56 * There are some registers that have been added so are optional. To support
57 * these create an array of headers that point at the register data.
58 */
59struct arm64_reg_context {
60 __uint32_t ctx_id;
61 __uint32_t ctx_size;
62};
63
64#define ARM64_CTX_END 0xa5a5a5a5
65#define ARM64_CTX_SVE 0x00657673
66
67struct sve_context {
68 struct arm64_reg_context sve_ctx;
69 __uint16_t sve_vector_len;
70 __uint16_t sve_flags;
71 __uint16_t sve_reserved[2];
72};
73
74struct __mcontext {
75 struct gpregs mc_gpregs;
76 struct fpregs mc_fpregs;
77 int mc_flags;
78#define _MC_FP_VALID 0x1 /* Set when mc_fpregs has valid data */
79 int mc_pad; /* Padding */
80 __uint64_t mc_ptr; /* Address of extra_regs struct */
81 __uint64_t mc_spare[7]; /* Space for expansion, set to zero */
82};
83
84
85typedef struct __mcontext mcontext_t;
86
87#ifdef COMPAT_FREEBSD32
88#include <compat/freebsd32/freebsd32_signal.h>
89typedef struct __mcontext32 {
90 uint32_t mc_gregset[17];
91 uint32_t mc_vfp_size;
92 uint32_t mc_vfp_ptr;
93 uint32_t mc_spare[33];
94} mcontext32_t;
95
96typedef struct __ucontext32 {
97 sigset_t uc_sigmask;
98 mcontext32_t uc_mcontext;
99 u_int32_t uc_link;
100 struct sigaltstack32 uc_stack;
101 u_int32_t uc_flags;
102 u_int32_t __spare__[4];
103} ucontext32_t;
104
105typedef struct __mcontext32_vfp {
106 __uint64_t mcv_reg[32];
107 __uint32_t mcv_fpscr;
108} mcontext32_vfp_t;
109
110#endif /* COMPAT_FREEBSD32 */
111
112#endif /* !_MACHINE_UCONTEXT_H_ */
113
114#endif /* !__arm__ */