signal.h revision 119889 
1/*
2 * Copyright (c) 1986, 1989, 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *	@(#)signal.h	8.1 (Berkeley) 6/11/93
34 * $FreeBSD: head/sys/amd64/include/signal.h 119889 2003-09-08 18:31:48Z peter $
35 */
36
37#ifndef _MACHINE_SIGNAL_H_
38#define	_MACHINE_SIGNAL_H_
39
40#include <sys/cdefs.h>
41#include <sys/_sigset.h>
42
43/*
44 * Machine-dependent signal definitions
45 */
46
47typedef long sig_atomic_t;
48
49#if __XSI_VISIBLE
50/*
51 * Minimum signal stack size. The current signal frame
52 * for i386 is 408 bytes large.
53 */
54#define	MINSIGSTKSZ	(512 * 4)
55#endif
56
57#if __BSD_VISIBLE
58#include <machine/trap.h>	/* codes for SIGILL, SIGFPE */
59
60/*
61 * Only the kernel should need these old type definitions.
62 */
63/*
64 * Information pushed on stack when a signal is delivered.
65 * This is used by the kernel to restore state following
66 * execution of the signal handler.  It is also made available
67 * to the handler to allow it to restore state properly if
68 * a non-standard exit is performed.
69 */
70/*
71 * The sequence of the fields/registers in struct sigcontext should match
72 * those in mcontext_t.
73 */
74struct sigcontext {
75	struct __sigset sc_mask;	/* signal mask to restore */
76	long	sc_onstack;		/* sigstack state to restore */
77	long	sc_rdi;		/* machine state (struct trapframe) */
78	long	sc_rsi;
79	long	sc_rdx;
80	long	sc_rcx;
81	long	sc_r8;
82	long	sc_r9;
83	long	sc_rax;
84	long	sc_rbx;
85	long	sc_rbp;
86	long	sc_r10;
87	long	sc_r11;
88	long	sc_r12;
89	long	sc_r13;
90	long	sc_r14;
91	long	sc_r15;
92	long	sc_trapno;
93	long	sc_addr;
94	long	sc_err;
95	long	sc_rip;
96	long	sc_cs;
97	long	sc_rflags;
98	long	sc_rsp;
99	long	sc_ss;
100	long	sc_len;			/* sizeof(mcontext_t) */
101	/*
102	 * XXX - See <machine/ucontext.h> and <machine/npx.h> for
103	 *       the following fields.
104	 */
105	long	sc_fpformat;
106	long	sc_ownedfp;
107	long	sc_spare1[1];
108	long	sc_fpstate[64] __aligned(16);
109	long	sc_spare2[8];
110};
111#endif /* __BSD_VISIBLE */
112
113#endif /* !_MACHINE_SIGNAL_H_ */
114