signal.h revision 230765 
1/*-
2 * Copyright (c) 2003 Peter Wemm.
3 * Copyright (c) 1986, 1989, 1991, 1993
4 *	The Regents of the University of California.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 4. Neither the name of the University nor the names of its contributors
15 *    may be used to endorse or promote products derived from this software
16 *    without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 *	@(#)signal.h	8.1 (Berkeley) 6/11/93
31 * $FreeBSD: head/sys/amd64/include/signal.h 230765 2012-01-30 07:51:52Z kib $
32 */
33
34#ifndef _MACHINE_SIGNAL_H_
35#define	_MACHINE_SIGNAL_H_
36
37#include <sys/cdefs.h>
38#include <sys/_sigset.h>
39
40/*
41 * Machine-dependent signal definitions
42 */
43
44typedef long sig_atomic_t;
45
46#if __BSD_VISIBLE
47#include <machine/trap.h>	/* codes for SIGILL, SIGFPE */
48
49/*
50 * Information pushed on stack when a signal is delivered.
51 * This is used by the kernel to restore state following
52 * execution of the signal handler.  It is also made available
53 * to the handler to allow it to restore state properly if
54 * a non-standard exit is performed.
55 *
56 * The sequence of the fields/registers after sc_mask in struct
57 * sigcontext must match those in mcontext_t and struct trapframe.
58 */
59struct sigcontext {
60	struct __sigset sc_mask;	/* signal mask to restore */
61	long	sc_onstack;		/* sigstack state to restore */
62	long	sc_rdi;		/* machine state (struct trapframe) */
63	long	sc_rsi;
64	long	sc_rdx;
65	long	sc_rcx;
66	long	sc_r8;
67	long	sc_r9;
68	long	sc_rax;
69	long	sc_rbx;
70	long	sc_rbp;
71	long	sc_r10;
72	long	sc_r11;
73	long	sc_r12;
74	long	sc_r13;
75	long	sc_r14;
76	long	sc_r15;
77	int	sc_trapno;
78	short	sc_fs;
79	short	sc_gs;
80	long	sc_addr;
81	int	sc_flags;
82	short	sc_es;
83	short	sc_ds;
84	long	sc_err;
85	long	sc_rip;
86	long	sc_cs;
87	long	sc_rflags;
88	long	sc_rsp;
89	long	sc_ss;
90	long	sc_len;			/* sizeof(mcontext_t) */
91	/*
92	 * See <machine/ucontext.h> and <machine/fpu.h> for the following
93	 * fields.
94	 */
95	long	sc_fpformat;
96	long	sc_ownedfp;
97	long	sc_fpstate[64] __aligned(16);
98
99	long	sc_fsbase;
100	long	sc_gsbase;
101
102	long	sc_xfpustate;
103	long	sc_xfpustate_len;
104
105	long	sc_spare[4];
106};
107#endif /* __BSD_VISIBLE */
108
109#endif /* !_MACHINE_SIGNAL_H_ */
110