2 * Copyright (c) 1999 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
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 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sys/i386/include/sigframe.h,v 1.5 1999/12/04 10:40:24 marcel Exp $
31 #ifndef _MACHINE_SIGFRAME_H_
32 #define _MACHINE_SIGFRAME_H_
35 * Signal frames, arguments passed to application signal handlers.
40 * The first four members may be used by applications.
46 * Either 'int' for old-style FreeBSD handler or 'siginfo_t *'
47 * pointing to sf_siginfo for SA_SIGINFO handlers.
51 /* Points to sf_siginfo.si_sc. */
57 * The following arguments are not constrained by the
58 * function call protocol.
59 * Applications are not supposed to access these members,
60 * except using the pointers we provide in the first three
65 __osiginfohandler_t *sf_action;
66 __sighandler_t *sf_handler;
69 /* In the SA_SIGINFO case, sf_arg2 points here. */
70 osiginfo_t sf_siginfo;
75 * The first four members may be used by applications.
77 * NOTE: The 4th argument is undocumented, ill commented
78 * on and seems to be somewhat BSD "standard". Handlers
79 * installed with sigvec may be using it.
82 register_t sf_siginfo; /* code or pointer to sf_si */
83 register_t sf_ucontext; /* points to sf_uc */
84 register_t sf_addr; /* undocumented 4th arg */
87 __siginfohandler_t *sf_action;
88 __sighandler_t *sf_handler;
90 ucontext_t sf_uc; /* = *sf_ucontext */
91 siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case) */
94 #endif /* !_MACHINE_SIGFRAME_H_ */