1/* Copyright (C) 2000-2025 Free Software Foundation, Inc.
 2   This file is part of the GNU C Library.
 3
 4   The GNU C Library is free software; you can redistribute it and/or
 5   modify it under the terms of the GNU Lesser General Public
 6   License as published by the Free Software Foundation; either
 7   version 2.1 of the License, or (at your option) any later version.
 8
 9   The GNU C Library is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   Lesser General Public License for more details.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with the GNU C Library; if not, see
16   <https://www.gnu.org/licenses/>.  */
17
18#ifndef _BITS_SIGCONTEXT_H
19#define _BITS_SIGCONTEXT_H 1
20
21#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
22# error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
23#endif
24
25#include <bits/wordsize.h>
26
27#if __WORDSIZE == 32
28
29/* It is quite hard to choose what to put here, because
30   Linux/sparc32 had at least 3 totally incompatible
31   signal stack layouts.
32   This one is for the "new" style signals, which are
33   now delivered unless SA_SIGINFO is requested.  */
34
35struct sigcontext
36  {
37    struct
38      {
39	unsigned int	psr;
40	unsigned int	pc;
41	unsigned int	npc;
42	unsigned int	y;
43	unsigned int	u_regs[16]; /* globals and ins */
44      }			si_regs;
45    int			si_mask;
46  };
47
48#else /* sparc64 */
49
50typedef struct
51  {
52    unsigned int	si_float_regs [64];
53    unsigned long	si_fsr;
54    unsigned long	si_gsr;
55    unsigned long	si_fprs;
56  } __siginfo_fpu_t;
57
58struct sigcontext
59  {
60    char		sigc_info[128];
61    struct
62      {
63	unsigned long	u_regs[16]; /* globals and ins */
64	unsigned long	tstate;
65	unsigned long	tpc;
66	unsigned long	tnpc;
67	unsigned int	y;
68	unsigned int	fprs;
69      }			sigc_regs;
70    __siginfo_fpu_t *	sigc_fpu_save;
71    struct
72      {
73	void *		ss_sp;
74	int		ss_flags;
75	unsigned long	ss_size;
76      }			sigc_stack;
77    unsigned long	sigc_mask;
78};
79
80#endif /* sparc64 */
81
82#endif /* bits/sigcontext.h */