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: releng/5.2/sys/i386/include/signal.h 107521 2002-12-02 19:58:55Z deischen $
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
47 typedef int 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 #if defined(_KERNEL) && defined(COMPAT_43)
64 /*
65 * Information pushed on stack when a signal is delivered.
66 * This is used by the kernel to restore state following
67 * execution of the signal handler. It is also made available
68 * to the handler to allow it to restore state properly if
69 * a non-standard exit is performed.
70 */
71 struct osigcontext {
72 int sc_onstack; /* sigstack state to restore */
73 osigset_t sc_mask; /* signal mask to restore */
74 int sc_esp; /* machine state follows: */
75 int sc_ebp;
76 int sc_isp;
77 int sc_eip;
78 int sc_efl;
79 int sc_es;
80 int sc_ds;
81 int sc_cs;
82 int sc_ss;
83 int sc_edi;
84 int sc_esi;
85 int sc_ebx;
86 int sc_edx;
87 int sc_ecx;
88 int sc_eax;
89 int sc_gs;
90 int sc_fs;
91 int sc_trapno;
92 int sc_err;
93 };
94 #endif
95
96 /*
97 * The sequence of the fields/registers in struct sigcontext should match
98 * those in mcontext_t.
99 */
100 struct sigcontext {
101 struct __sigset sc_mask; /* signal mask to restore */
102 int sc_onstack; /* sigstack state to restore */
103 int sc_gs; /* machine state (struct trapframe) */
104 int sc_fs;
105 int sc_es;
106 int sc_ds;
107 int sc_edi;
108 int sc_esi;
109 int sc_ebp;
110 int sc_isp;
111 int sc_ebx;
112 int sc_edx;
113 int sc_ecx;
114 int sc_eax;
115 int sc_trapno;
116 int sc_err;
117 int sc_eip;
118 int sc_cs;
119 int sc_efl;
120 int sc_esp;
121 int sc_ss;
122 int sc_len; /* sizeof(mcontext_t) */
123 /*
124 * XXX - See <machine/ucontext.h> and <machine/npx.h> for
125 * the following fields.
126 */
127 int sc_fpformat;
128 int sc_ownedfp;
129 int sc_spare1[1];
130 int sc_fpstate[128] __aligned(16);
131 int sc_spare2[8];
132 };
133
134 #define sc_sp sc_esp
135 #define sc_fp sc_ebp
136 #define sc_pc sc_eip
137 #define sc_ps sc_efl
138 #define sc_eflags sc_efl
139
140 #endif /* __BSD_VISIBLE */
141
142 #endif /* !_MACHINE_SIGNAL_H_ */
Cache object: 475b7a41731e190d92f02f6e25158ce8
|